ADVANCED UROSCIENCE INC
SB-2/A, 1996-08-07
ELECTROMEDICAL & ELECTROTHERAPEUTIC APPARATUS
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<PAGE>
   
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON AUGUST 6, 1996
    
 
   
                                                      REGISTRATION NO. 333-07285
    
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                           --------------------------
   
                                AMENDMENT NO. 1
                                       TO
                                   FORM SB-2
    
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                            ------------------------
                           ADVANCED UROSCIENCE, INC.
                 (Name of small business issuer in its charter)
 
<TABLE>
<S>                              <C>                            <C>
          MINNESOTA                          3845                  41-1786260
  (State or jurisdiction of      (Primary Standard Industrial   (I.R.S. Employer
incorporation or organization)   Classification Code Number)     Identification
                                                                    Number)
</TABLE>
 
                           ADVANCED UROSCIENCE, INC.
                               1290 HAMMOND ROAD
                           ST. PAUL, MINNESOTA 55110
                                 (612) 653-8512
         (Address and telephone number of principal executive offices)
 
              DEAN A. KLEIN, PRESIDENT AND CHIEF EXECUTIVE OFFICER
                           ADVANCED UROSCIENCE, INC.
                               1290 HAMMOND ROAD
                           ST. PAUL, MINNESOTA 55110
                                 (612) 653-8512
           (Name, address and telephone number of agent for service)
                           --------------------------
 
                                   COPIES TO:
 
<TABLE>
<S>                                       <C>
          Dobson West, Esq.                      Elizabeth C. Hinck, Esq.
        Melodie R. Rose, Esq.                      Dorsey & Whitney LLP
       Fredrikson & Byron, P.A.                   220 South Sixth Street
 900 Second Avenue South, Suite 1100           Minneapolis, Minnesota 55402
     Minneapolis, Minnesota 55402                     (612) 340-2600
            (612) 347-7000
</TABLE>
 
                           --------------------------
 
                APPROXIMATE DATE OF PROPOSED SALE TO THE PUBLIC:
  AS SOON AS PRACTICABLE AFTER THIS REGISTRATION STATEMENT BECOMES EFFECTIVE.
                           --------------------------
 
    If  this  Form is  filed to  register additional  securities of  an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list  the  Securities  Act  registration statement  number  of  the  earlier
effective registration statement for the same offering: / /
    If  this Form  is a post-effective  amendment filed pursuant  to Rule 462(c)
under the Securities Act, please check the following box and list the Securities
Act  registration  statement  number  of  the  earlier  effective   registration
statement for the same offering: / /
    If  delivery of the prospectus is expected  to be made pursuant to Rule 434,
please check the following box: /X/
                           --------------------------
 
   
    THE REGISTRANT HEREBY  AMENDS THIS  REGISTRATION STATEMENT ON  SUCH DATE  OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE  A  FURTHER  AMENDMENT  WHICH SPECIFICALLY  STATES  THAT  THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE  IN ACCORDANCE WITH SECTION 8(A)  OF
THE  SECURITIES ACT  OF 1933  OR UNTIL  THE REGISTRATION  STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION  8(A),
MAY DETERMINE.
    
 
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- --------------------------------------------------------------------------------
<PAGE>
INFORMATION   CONTAINED  HEREIN  IS  SUBJECT   TO  COMPLETION  OR  AMENDMENT.  A
REGISTRATION STATEMENT  RELATING TO  THESE SECURITIES  HAS BEEN  FILED WITH  THE
SECURITIES  AND EXCHANGE  COMMISSION. THESE SECURITIES  MAY NOT BE  SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR  TO THE TIME THE REGISTRATION STATEMENT  BECOMES
EFFECTIVE.  THIS  PROSPECTUS  SHALL  NOT  CONSTITUTE AN  OFFER  TO  SELL  OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE  SECURITIES
IN  ANY STATE IN WHICH SUCH OFFER,  SOLICITATION OR SALE WOULD BE UNLAWFUL PRIOR
TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.
<PAGE>
   
                  SUBJECT TO COMPLETION, DATED AUGUST 6, 1996
    
 
PROSPECTUS
                                1,500,000 SHARES
 
                                     [LOGO]
 
                                  COMMON STOCK
 
    All of the shares  of Common Stock offered  hereby (the "Shares") are  being
sold  by  Advanced UroScience,  Inc. ("Advanced  UroScience" or  the "Company").
Prior to the Offering, there has been  no public market for the Common Stock  of
the  Company. It is  currently estimated that the  initial public offering price
will be between $9.00 and $10.00  per Share. See "Underwriting" for the  factors
considered  in determining  the initial  public offering  price. Application has
been made to have the Common Stock approved on the Nasdaq National Market  under
the symbol "AURO" pending completion of the Offering.
                            ------------------------
     THE COMMON STOCK OFFERED BY THIS PROSPECTUS IS SPECULATIVE AND INVOLVES A
   HIGH DEGREE OF RISK AND IMMEDIATE SUBSTANTIAL DILUTION. SEE "RISK FACTORS"
                 BEGINNING ON PAGE 5 AND "DILUTION" ON PAGE 12.
                             ---------------------
 
    THESE   SECURITIES  HAVE  NOT  BEEN  APPROVED  OR  DISAPPROVED  BY  THE
     SECURITIES  AND  EXCHANGE   COMMISSION  OR   ANY  STATE   SECURITIES
       COMMISSION  NOR HAS THE SECURITIES AND EXCHANGE COMMISSION OR ANY
        STATE SECURITIES  COMMISSION  PASSED  UPON  THE  ACCURACY  OR
           ADEQUACY  OF THIS  PROSPECTUS. ANY  REPRESENTATION TO THE
                               CONTRARY IS A CRIMINAL OFFENSE.
 
<TABLE>
<CAPTION>
                                                             UNDERWRITING      PROCEEDS TO
                                           PRICE TO PUBLIC   DISCOUNT (1)      COMPANY (2)
<S>                                        <C>              <C>              <C>
Per Share................................         $                $                $
Total (3)................................         $                $                $
</TABLE>
 
(1) The Company has agreed to pay  to John G. Kinnard and Company,  Incorporated
    and  Pennsylvania  Merchant Group  Ltd,  as representatives  of  the several
    Underwriters  (the   "Representatives"),  their   accountable  expenses   in
    connection  with the Offering  up to a  maximum of $50,000.  The Company has
    also agreed to sell  to the Representatives, for  a nominal purchase  price,
    five-year  warrants to purchase up to an  aggregate of 150,000 shares of the
    Common Stock, exercisable at 120% of  the Price to Public. In addition,  the
    Company   has  agreed   to  indemnify   the  Underwriters   against  certain
    liabilities, including  liabilities under  the Securities  Act of  1933,  as
    amended. See "Underwriting."
(2)  Before deducting  expenses payable  by the  Company, estimated  at $260,000
    (including the Representatives'  accountable expenses referenced  in note  1
    above). See "Underwriting."
(3)  The Company has granted the Underwriters  a 30-day option to purchase up to
    225,000 additional shares of Common Stock solely to cover overallotments, if
    any. If  such  option is  exercised  in full,  the  total Price  to  Public,
    Underwriting  Discount and Proceeds to Company will be  $      ,  $      and
    $      , respectively. See "Underwriting."
 
    The Shares are being  offered by the several  Underwriters subject to  prior
sale,  to withdrawal, cancellation or modification  of the offer without notice,
to delivery  to  and  acceptance  by  the  Underwriters  and  to  certain  other
conditions.  It is expected that delivery of the Shares will be made on or about
            , 1996 in Minneapolis, Minnesota.
 
                            ------------------------
 
JOHN G. KINNARD AND COMPANY, INCORPORATED
 
                                                 PENNSYLVANIA MERCHANT GROUP LTD
                                  ------------
 
                THE DATE OF THIS PROSPECTUS IS            , 1996
<PAGE>
               [ANATOMICAL DEPICTION OF ACYST IMPLANT PROCEDURE]
 
     The Company's products have not been approved by the FDA and there can  be
 no assurance that the Company will receive approval from the FDA.
 
    IN  CONNECTION WITH THIS OFFERING, THE UNDERWRITERS MAY OVER-ALLOT OR EFFECT
TRANSACTIONS WHICH STABILIZE OR MAINTAIN THE MARKET PRICE OF THE COMMON STOCK OF
THE COMPANY AT  A LEVEL ABOVE  THAT WHICH  MIGHT OTHERWISE PREVAIL  IN THE  OPEN
MARKET. SUCH STABILIZING, IF COMMENCED, MAY BE DISCONTINUED AT ANY TIME.
 
    Acyst-TM- is a trademark of the Company. This Prospectus also includes trade
names,  trademarks and  registered trademarks  of companies  other than Advanced
UroScience.
<PAGE>
                               PROSPECTUS SUMMARY
 
    THIS  SUMMARY IS QUALIFIED IN ITS  ENTIRETY BY THE MORE DETAILED INFORMATION
AND FINANCIAL  STATEMENTS  OF  THE  COMPANY  AND  THE  NOTES  THERETO  APPEARING
ELSEWHERE IN THIS PROSPECTUS. UNLESS OTHERWISE INDICATED, ALL INFORMATION HEREIN
(I)  HAS BEEN ADJUSTED TO REFLECT A 6-FOR-5  STOCK SPLIT EFFECTED ON MAY 1, 1996
AND (II) ASSUMES NO EXERCISE OF THE UNDERWRITERS' OVERALLOTMENT OPTION  (225,000
SHARES),  THE REPRESENTATIVES'  WARRANT (150,000 SHARES)  OR OUTSTANDING OPTIONS
AND  WARRANTS   (1,169,880  SHARES).   SEE  "DESCRIPTION   OF  SECURITIES"   AND
"UNDERWRITING."
 
                                  THE COMPANY
 
   
    Advanced  UroScience,  Inc.  ("Advanced  UroScience"  or  the  "Company") is
developing Acyst,  an injectable  bulking  agent, for  the treatment  of  stress
urinary  incontinence  due  to intrinsic  sphincter  deficiency.  Stress urinary
incontinence is generally defined as the  involuntary loss of urine as a  result
of   activities  that  increase  intra-abdominal  pressure,  such  as  coughing,
laughing, exercising or simply standing  up. Acyst is a proprietary  composition
of  pyrolytic carbon-coated  micro-beads suspended  in a  carrier gel.  Acyst is
designed to be injected into  the mucosal lining of the  urethra at the neck  of
the  bladder  through  a  specially  designed  needle.  The  injection procedure
involves inserting  the  needle  through a  standard  cystoscope,  allowing  the
physician  to view the  bulking of the  tissue and the  resulting closure of the
bladder  opening.   This  minimally   invasive  outpatient   procedure  can   be
accomplished  in approximately 30 minutes and is designed to restore the patient
to urinary continence immediately after the injection procedure.
    
 
    Advanced UroScience has recently commenced conducting human clinical  trials
of  Acyst at  the Mayo Clinic  in Rochester, Minnesota  under an investigational
device  exemption  ("IDE")  granted   by  the  United   States  Food  and   Drug
Administration  ("FDA"). The Company  expects to use the  data gathered in these
trials to support an  application for premarket approval  ("PMA") from the  FDA.
The  Company  is also  conducting human  clinical trials  outside of  the United
States.
 
    Advanced UroScience believes that  Acyst offers significant advantages  over
existing  management  and  treatment options,  including  commercially available
injectable bulking agents for sufferers of stress urinary incontinence caused by
intrinsic sphincter deficiency. Unlike adult diapers and pads, which are methods
of managing the problem, Acyst is  designed to treat and improve the  condition.
Acyst  is  designed  to  provide  results  immediately  after  injection, unlike
behavioral therapy and pelvic muscle training exercises, which can take  several
weeks  or months before results are  achieved and which require ongoing therapy.
Acyst was  specifically designed  to  address the  significant issues  posed  by
commercially  available  injectable  bulking  agents,  namely, biocompatibility,
migration  and   absorption.   Acyst   utilizes   nonabsorbable,   nonmigratory,
biocompatible  micro-beads  designed  to be  permanent,  thereby  minimizing the
potential need for retreatment.
 
   
    It is  estimated that  there are  at least  13 million  people with  urinary
incontinence  in  the United  States, of  which 85%  are women.  Approximately 9
million of  the people  with  urinary incontinence  suffer from  stress  urinary
incontinence. The Company believes that the majority of these people suffer from
varying  degrees of instrinsic sphincter deficiency  and may benefit from Acyst.
Initially, the Company will seek FDA approval to market Acyst for the  treatment
of  the severest  forms of  instrinsic sphincter  deficiency, which  the Company
believes affect approximately 1.5 million people. The Company intends to conduct
future human clinical trials to support expanded applications of Acyst. Although
urinary incontinence is most prevalent in  the elderly, it is also common  among
women  under  the age  of  60. It  is  expected that  urinary  incontinence will
continue to  be a  significant health  care  problem for  the adult  female  and
elderly  populations  and  will, in  fact,  increase as  the  growing population
continues to age.
    
 
    The Company's current  focus is  to complete  the human  clinical trials  of
Acyst  and obtain approval to market from the  FDA as well as approval to market
Acyst in  countries  outside  of  the United  States.  The  Company's  marketing
strategy  will be  to target  the large  number of  women suffering  from stress
urinary  incontinence  due  to  intrinsic  sphincter  deficiency  by   educating
physicians  and  other  health care  providers  that treat  these  patients, the
patients themselves and the health care payers.
 
                                       3
<PAGE>
    The Company was incorporated  in Minnesota on July  27, 1994. Its  executive
offices  are located  at 1290  Hammond Road, St.  Paul, Minnesota  55110 and its
telephone number is (612) 653-8512.
 
                                  THE OFFERING
 
<TABLE>
<S>                                           <C>
Common Stock offered........................  1,500,000 Shares
 
Common Stock outstanding after the
  Offering..................................  5,213,220 shares
 
Use of proceeds.............................  To fund  human clinical  trials, research  and
                                              development, international sales and marketing
                                              and  for working capital and general corporate
                                              purposes. See "Use of Proceeds."
 
Proposed Nasdaq National Market symbol......  AURO
</TABLE>
 
                             SUMMARY FINANCIAL DATA
 
   
<TABLE>
<CAPTION>
                                                                                                  PERIOD FROM
                                       PERIOD FROM                                                 INCEPTION
                                        INCEPTION                          FIVE MONTHS ENDED      (AUGUST 1,
                                    (AUGUST 1, 1994)                            MAY 31,              1994)
                                           TO             YEAR ENDED      --------------------        TO
                                    DECEMBER 31, 1994  DECEMBER 31, 1995    1995       1996      MAY 31, 1996
                                    -----------------  -----------------  ---------  ---------  ---------------
<S>                                 <C>                <C>                <C>        <C>        <C>
STATEMENT OF OPERATIONS DATA:
  Research and development
    expense.......................     $    33,500        $   353,300     $ 109,000  $ 215,000    $   601,900
  General and administrative
    expense.......................          73,700            164,800        48,600    309,700        548,200
  Net loss........................     $  (108,900)       $  (524,400)    $(159,200) $(514,700)   $(1,148,000)
                                    -----------------  -----------------  ---------  ---------  ---------------
                                    -----------------  -----------------  ---------  ---------  ---------------
  Net loss per share..............     $     (0.03)       $     (0.12)    $    (.04) $    (.12)
                                    -----------------  -----------------  ---------  ---------
                                    -----------------  -----------------  ---------  ---------
  Weighted average number of
    common and common equivalent
    shares outstanding............       3,840,887          4,393,483     4,387,883  4,397,483
                                    -----------------  -----------------  ---------  ---------
                                    -----------------  -----------------  ---------  ---------
</TABLE>
    
 
   
<TABLE>
<CAPTION>
                                                                                                 MAY 31, 1996
                                                                                         -----------------------------
                                                                     DECEMBER 31, 1995     ACTUAL      AS ADJUSTED(1)
                                                                     -----------------   -----------   ---------------
<S>                                                                  <C>                 <C>           <C>
BALANCE SHEET DATA:
  Working capital..................................................  $    415,200        $ 1,244,600   $   14,094,600
  Total assets.....................................................       534,400          1,506,200       14,356,200
  Total liabilities................................................       277,400            186,300          186,300
  Total stockholders' equity (2)...................................       257,100          1,319,900       14,169,900
</TABLE>
    
 
- ------------------------------
(1) Adjusted  to  reflect  the  sale  of  the  Shares  offered  hereby  and  the
    application  of the  net proceeds therefrom,  assuming a Price  to Public of
    $9.50 per Share.
 
   
(2) No dividends have been declared or paid on the Company's Common Stock.
    
 
                                       4
<PAGE>
                                  RISK FACTORS
 
    IN  ADDITION  TO THE  OTHER INFORMATION  IN  THIS PROSPECTUS,  THE FOLLOWING
FACTORS SHOULD BE CONSIDERED CAREFULLY BY POTENTIAL PURCHASERS IN EVALUATING  AN
INVESTMENT IN THE COMMON STOCK OF THE COMPANY.
 
   
LIMITED OPERATING HISTORY; HISTORY OF LOSSES AND ANTICIPATED FUTURE LOSSES;
PROFITABILITY UNCERTAIN
    
 
   
    The  Company  is a  development stage  company that  since its  inception in
August 1994 has been primarily engaged  in research, development and testing  of
Acyst.  The Company has experienced significant operating losses since inception
and, as of May 31, 1996, had an accumulated deficit of approximately $1,417,400.
In addition, the development and commercialization  by the Company of Acyst  and
other  new  products,  if  any,  will  require  substantial  product development
expenditures for  the  foreseeable future.  The  Company expects  its  operating
losses  to increase over  the foreseeable future  and there can  be no assurance
that the Company will be  profitable in the future or  that the net proceeds  of
the  Offering, together  with the Company's  existing capital  resources and any
funds provided by future  operations, will be sufficient  to fund the  Company's
needs, or that other sources of funding will be available. The Company's ability
to generate revenues from operations and achieve profitability is dependent upon
successful    completion   of   clinical   trials,   regulatory   approval   and
commercialization of  Acyst  and  the Company's  successful  transition  from  a
development  stage company to a fully operating company. See "Selected Financial
Data," "Management's Discussion and Analysis of Financial Condition and  Results
of Operations" and the Financial Statements.
    
 
EARLY STAGE OF CLINICAL TESTING; UNCERTAINTY OF OBTAINING REGULATORY APPROVAL
 
   
    Acyst  is a new product  and is in the early  stages of clinical testing. To
date, the Company has conducted primarily animal research and has only  recently
begun  conducting human clinical trials designed to test the safety and efficacy
of Acyst. The Company cannot market Acyst in the United States unless and  until
substantial  human  clinical  trials are  successfully  completed and  a  PMA is
prepared  by  the  Company  and  approved  by  the  FDA.  Similarly,  prior   to
commercialization in foreign jurisdictions, receipt of regulatory approvals from
the appropriate regulatory bodies in those jurisdictions will be required. There
can  be no assurance that Acyst will be  shown by clinical trials to be safe and
effective or that  such clinical trials  will be seen  by the FDA  or others  as
conclusive.  In addition, the Company's clinical trials may identify significant
obstacles to be  overcome prior  to obtaining regulatory  approval. The  Company
initially  will  seek FDA  approval to  market  Acyst for  the treatment  of the
severest forms  of  instrinsic sphincter  deficiency,  and may  be  required  to
conduct  future clinical trials to support an additional PMA filing with the FDA
for expanded applications of  Acyst. The process of  obtaining FDA approval  and
other regulatory approvals is lengthy, expensive and uncertain, and there can be
no  assurance that Acyst will be approved for marketing, either initially or for
expanded applications, on  a timely  basis or  at all  in the  United States  or
elsewhere.  If Acyst does not prove to  be safe and effective in clinical trials
to the  satisfaction of  the FDA  and  other regulatory  authorities or  if  the
Company fails to receive the necessary regulatory approvals on a timely basis or
at  all, the Company's  business, financial condition  and results of operations
will  be  materially  adversely  affected.  See  "Business  --  Development  and
Regulatory Status" and "Business -- Regulatory Affairs."
    
 
DEPENDENCE ON SINGLE PRODUCT; UNCERTAINTY OF MARKET ACCEPTANCE
 
    The  Company's  future  success  is  entirely  dependent  on  the successful
commercialization and market acceptance of its single product, Acyst, the safety
and efficacy of which has not yet been demonstrated and the regulatory  approval
of which has not been obtained in the United States or any foreign jurisdiction.
There  can be  no assurance  that Acyst will  achieve any  significant degree of
market acceptance among physicians, health care payers or patients, even if  the
safety  and  efficacy  of  Acyst is  established  and  the  necessary regulatory
approvals are obtained. Physicians  may not elect  to prescribe treatment  using
Acyst unless adequate reimbursement from health care payers is available. Health
care  payer acceptance of a treatment  utilizing Acyst will require, among other
things, evidence of  the cost  effectiveness of  this treatment  as compared  to
other treatment options. There can be no assurance as to whether and, if so, how
frequently  patients will require additional injections of Acyst and whether any
such additional injections would be effective or would have a negative effect on
physician, payer or patient acceptance. Failure of Acyst to achieve  significant
market  acceptance among  physicians, health  care payers  and/or patients would
have a material adverse  effect on the  Company's business, financial  condition
and results of operations. See "Business."
 
                                       5
<PAGE>
DEPENDENCE ON PATENTS AND PROPRIETARY RIGHTS
 
    The  Company's success depends in part on its ability to obtain and maintain
patent protection for its products, to preserve its trade secrets and to operate
without infringing the proprietary rights of third parties. The Company has  one
patent  relating to  Acyst and has  filed one related  Patent Cooperation Treaty
patent application. No  assurances can  be given that  the scope  of any  patent
protection  will prevent  competitors, most  of which  have financial  and other
resources substantially  greater than  the  Company, from  introducing  products
competitive  with  Acyst,  that  the  Company's patent  will  be  held  valid if
subsequently challenged, that others  will not claim rights  in or ownership  of
the  patent  and other  proprietary  rights held  by  the Company,  or  that the
Company's product and processes  will not infringe, or  be alleged to  infringe,
the proprietary rights of others. A number of patents have been issued to others
in  the area  of injectable bulking  agents. Patenting  medical devices involves
complex legal and factual questions, and there is no consistent policy regarding
the breadth of claims which issue pertaining to such technologies or which  will
be  held  valid  if  subsequently  challenged.  The  Company  also  relies  upon
unpatented trade secrets to protect its proprietary technology. No assurance can
be given  that  others  will  not independently  develop  or  otherwise  acquire
substantially equivalent techniques or gain access to and disclose the Company's
proprietary  technology. Further, no assurance can be given that the Company can
ultimately protect meaningful rights to such unpatented proprietary technology.
 
   
    There  has   been  substantial   litigation  regarding   patent  and   other
intellectual  property rights in  the medical device  industry. Companies in the
medical device industry have employed intellectual property litigation to gain a
competitive advantage. The  Company has  been notified  by a  competitor of  the
existence  of its patents relating to injectable bulking agents. The Company and
its patent  counsel have  reviewed  these patents.  Based  on this  review,  the
Company  believes that it is not infringing  such patents. However, there can be
no assurance that the holders of these other patents will not pursue  litigation
against  the Company.  In addition, litigation  may be necessary  to enforce any
patents issued to the Company, protect trade secrets or proprietary  information
owned  by the Company  against claimed infringement  of the rights  of others or
determine the  scope and  validity  of the  proprietary  rights of  others.  The
defense  and prosecution of  patent litigation or  other legal or administrative
proceedings related to patents is both costly and time-consuming, regardless  of
the  outcome. An adverse outcome in any  litigation could subject the Company to
significant liabilities to third parties, require disputed rights to be licensed
from others  or  require the  Company  to cease  making,  using or  selling  any
products. There can be no assurance that any licenses required under any patents
or  proprietary  rights  would be  made  available  on terms  acceptable  to the
Company, if at all. In addition to being costly, protracted litigation to defend
or prosecute intellectual property could result  in the Company being unable  to
commercialize  Acyst on a timely  basis or at all.  See "Business -- Patents and
Proprietary Rights."
    
 
HIGHLY COMPETITIVE INDUSTRY
 
    Competition in the  urinary incontinence management  and treatment  products
market  is intense. The Company's ability to  compete in this market will depend
primarily upon physician, patient and health care payer acceptance of Acyst as a
safe, effective and cost effective treatment for stress urinary incontinence due
to intrinsic  sphincter deficiency.  The Company's  ability to  compete in  this
market  will also depend on  product pricing and the  consistency of its product
quality and delivery.  Other factors  within and outside  the Company's  control
include  its  product development  and innovation  capabilities, its  ability to
obtain required regulatory  approvals, its  ability to  protect its  proprietary
technology,  its  manufacturing and  marketing capabilities  and its  ability to
attract and retain skilled employees.
 
    The medical condition that can be  treated using the Company's product  also
may be managed or treated using a variety of alternative products or techniques,
including  adult diapers and absorbent pads,  behavior therapy and pelvic muscle
exercise, drugs, surgery, implantable devices, other injectable bulking  agents,
and other medical devices. There is no assurance that the Company's product will
be  able to replace such alternative products or techniques or that advancements
in these alternative products or techniques will not make the Company's  product
obsolete. In addition, the Company believes that some of its competitors that do
not   currently  have  injectable  bulking  agents  are  attempting  to  develop
injectable bulking agents  that will compete  directly with Acyst.  Many of  the
Company's    existing    and    potential    competitors    have   substantially
 
                                       6
<PAGE>
greater capital resources, name recognition and well-known and  well-established
product  lines.  These  competitors may  also  have greater  expertise  than the
Company in  research and  development, manufacturing,  marketing and  sales  and
regulatory  affairs. There  is no  assurance that  the Company  will be  able to
successfully compete  against such  competitors and  potential competitors.  See
"Business -- Competition."
 
EXTENSIVE UNITED STATES AND INTERNATIONAL REGULATORY AFFAIRS
 
    The  Company's  product,  product development  activities  and manufacturing
processes are subject  to extensive and  rigorous regulation by  the FDA and  by
comparable  agencies  in  foreign  countries.  In  the  United  States,  the FDA
regulates  the  introduction  of  medical  devices  as  well  as  manufacturing,
labeling,    distribution,   sale,   marketing,   advertising,   promotion   and
recordkeeping procedures for such products. To introduce its product in  Europe,
the  Company  must comply  with  the medical  device  directive of  the European
Community which defines  the safety, design  and manufacturing requirements  for
medical  products. Typically a full quality  assurance system complying with and
certified to international  quality standards  is required to  conform with  the
medical  device directive. Other foreign jurisdictions have extensive regulatory
requirements for the introduction of medical devices in those jurisdictions. The
process of obtaining marketing  approval for new medical  products from the  FDA
and  complying with international quality standards  in foreign countries can be
costly and time  consuming, and  there can be  no assurance  that the  requisite
approvals  or certifications will be granted for Acyst or any future products on
a timely basis  or at  all, or  that such  regulatory reviews  will not  involve
delays that would adversely affect the Company's ability to commercialize Acyst.
 
    Even  if regulatory approval to  market a product is  obtained from the FDA,
this approval  may entail  limitations on  the indicated  uses of  the  product.
Marketing  approval can also  be withdrawn by  the FDA due  to failure to comply
with regulatory standards  or the  occurrence of  unforeseen problems  following
initial  approval. The Company may be required  to make further filings with the
FDA under  certain circumstances,  such as  the addition  of product  claims  or
product  reformulation. The FDA  could also limit or  prevent the manufacture or
distribution of the Company's products and  has the power to require the  recall
of   such   products.   FDA  regulations   depend   heavily   on  administrative
interpretation, and there can be no assurance that future interpretation made by
the FDA or other regulatory bodies,  with possible retroactive effect, will  not
adversely  affect the  Company. The FDA  and various state  agencies inspect the
Company and its facilities from time to time to determine whether the Company is
in  compliance  with  regulations  relating  to  medical  device   manufacturing
companies,  including  regulations  concerning  manufacturing,  testing, quality
control and product labeling practices. A  determination that the Company is  in
material  violation of  such regulations could  lead to the  imposition of civil
penalties, including fines,  product recalls, product  seizures, or, in  extreme
cases, criminal sanctions. See "Business -- Regulatory Affairs."
 
UNCERTAINTY RELATING TO THIRD-PARTY REIMBURSEMENT
 
    The  success of the Company will be  dependent upon, among other things, the
extent to which satisfactory reimbursement for Acyst and the injection procedure
can be obtained from  health care payers for  physicians performing the  implant
procedure.  In  the  United  States  and  many  foreign  countries,  third-party
reimbursement is  currently  generally  available for  surgical  procedures  for
urinary  incontinence, but there  is no uniform  policy for such reimbursements.
The availability of third-party reimbursement for Acyst or competitors' products
or surgical procedures and continuing efforts to reduce the costs of health care
by decreasing  reimbursement  rates may  affect  the  pricing of  Acyst  or  the
relative  cost to the  consumer. The Company  is not able  to predict the effect
that the availability or unavailability  of third-party reimbursement for  Acyst
may  have on its commercialization  abroad or in the  United States. Third party
reimbursement will  be dependent  upon decisions  by the  Health Care  Financing
Administration  ("HCFA")  for Medicare,  individual managed  care organizations,
private insurers, foreign governmental health programs and other payers. Failure
to establish sufficient reimbursement from health care payers or adverse changes
in governmental and  private third party  payers' policies toward  reimbursement
for  Acyst and  its injection  procedure could  materially adversely  affect the
Company's business, financial condition and results of operations. See "Business
- -- Third-Party Reimbursement."
 
                                       7
<PAGE>
DEPENDENCE ON SUPPLIERS
 
    Certain of the primary raw materials  and components for the manufacture  of
Acyst,  such as the micro-beads  and a material needed  for the gel carrier, are
available only from single sources. In the  event that the Company is unable  to
obtain  these materials or  components from its  current suppliers on acceptable
terms and is required  to replace its current  raw materials or components  with
alternatives,  additional testing may be required  in order for Acyst to receive
regulatory approval. Interruptions  in supplies of  raw materials or  components
may  occur as  a result of  business risks  particular to such  suppliers or the
failure of the  Company and any  such supplier to  maintain satisfactory  terms.
Suppliers  of the Company's raw materials  and components may decide for reasons
beyond the control  of the  Company, such  as concerns  about potential  medical
product  liability risk in general, to cease supplying such materials for use in
medical devices generally. Any  interruption in the supply  of raw materials  or
components  currently used by the  Company or the use  of any alternatives could
have a material adverse  effect on the  Company's business, financial  condition
and results of operations. See "Business -- Manufacturing."
 
   
NEED FOR ADDITIONAL CAPITAL
    
 
    The  Company plans to  continue to expend substantial  funds on research and
product  development,  pursuit  of   regulatory  approvals,  expansion  of   its
manufacturing  facilities  and marketing  and distribution  of its  product. The
Company also intends  to invest in  additional equipment in  order to  establish
sufficient  manufacturing capabilities  to supply  commercial volumes  of Acyst.
There can be no assurance that the  net proceeds of the Offering, together  with
the  Company's existing  capital resources and  any funds  generated from future
operations, will be sufficient to finance the Company's operations or that other
sources of equity or debt funding will be available. The Company does not have a
bank line  of  credit or  other  arrangement  to obtain  any  needed  additional
financing,  and there can  be no assurance  that any required  financing will be
available on acceptable terms or at all. Any additional equity financings may be
dilutive to purchasers in  the Offering, and debt  financing, if available,  may
involve  restrictive covenants.  Insufficient funds  may require  the Company to
delay, scale back or eliminate some or all of its efforts to commercialize Acyst
or prevent such commercial introduction altogether. See "Management's Discussion
and Analysis of Financial Condition and Results of Operations."
 
LIMITED MARKETING AND SALES EXPERIENCE
 
    The Company has  not sold any  products. The Company  currently has  limited
sales and marketing capabilities. There can be no assurance that the Company can
build  an effective sales force, attract  and retain its own qualified marketing
and sales group  or otherwise design  and implement an  effective marketing  and
sales  strategy for Acyst  or any future  product developed by  the Company. See
"Business -- Marketing Strategy."
 
LIMITED MANUFACTURING EXPERIENCE
 
    To date the Company has not commenced manufacturing commercial quantities of
Acyst and has manufactured only limited  quantities of Acyst. To be  successful,
the  Company must manufacture Acyst  in compliance with regulatory requirements,
in a  timely  manner and  in  sufficient quantities  while  maintaining  product
quality  and acceptable manufacturing costs. There  can be no assurance that the
Company will be  able to  manufacture commercial  quantities of  Acyst with  the
consistent  high  quality  and  low  cost required  for  the  Company  to become
profitable. See "Business -- Manufacturing."
 
RISK OF PRODUCT LIABILITY; NO ASSURANCE INSURANCE IS ADEQUATE
 
    The medical products industry is subject to substantial litigation, and  the
Company  faces an inherent business risk of exposure to product liability claims
in the event that the use of its products is alleged to have resulted in adverse
effects to a  patient. There  can be no  assurance that  the Company's  existing
insurance  coverage  limits  are  adequate  to  protect  the  Company  from  any
liabilities which it might incur in connection with the clinical trials of Acyst
or the  initial commercialization  of  Acyst. There  can  be no  assurance  that
liability  claims will not  exceed coverage limits.  Such insurance is expensive
and in  the  future  may not  be  available  on acceptable  terms,  if  at  all.
Consequently, a product liability claim or other claim with respect to uninsured
liabilities  or in excess  of insured liabilities could  have a material adverse
effect on the  business, financial condition  and results of  operations of  the
Company. See "Business -- Product Liability."
 
                                       8
<PAGE>
DEPENDENCE ON KEY PERSONNEL
 
    The  Company's success  depends to a  significant degree  upon the continued
contributions of its key  management personnel. The  Company generally does  not
have  employment agreements with  nor maintain key person  life insurance on its
key personnel. The Company believes that its future success will depend in large
part  on  its  ability  to   attract  and  retain  highly  skilled   managerial,
engineering,  operations  and  marketing  personnel, who  are  in  great demand.
Failure to attract and retain key personnel could have a material adverse effect
on the Company's results of operations. See "Management."
 
RISKS RELATED TO INTERNATIONAL SALES
 
    The Company  intends to  sell Acyst  and any  future products  to  customers
outside  of the United States. International sales and operations may be limited
or  disrupted  by  the  imposition   of  government  controls,  export   license
requirements,  political instability, trade restrictions,  changes in tariffs or
difficulties  in  staffing  and   managing  international  operations.   Foreign
regulatory  agencies often establish  product standards different  from those in
the United States and any inability to obtain foreign regulatory approvals on  a
timely  basis  or  at  all  could  have  an  adverse  effect  on  the  Company's
international business and  its financial condition  and results of  operations.
Additionally,  the  Company's  business,  financial  condition  and  results  of
operations may be adversely affected by fluctuations in currency exchange  rates
as  well  as  increases  in  duty rates  and  difficulties  in  obtaining export
licenses.  There  can  be  no  assurance  that  the  Company  will  be  able  to
successfully  commercialize Acyst or  any future product  in any foreign market.
See "Business -- Marketing Strategy."
 
CONTROL BY MANAGEMENT
 
    Upon completion  of  the  Offering, the  Company's  executive  officers  and
directors   will  beneficially  own  approximately   56.1%  of  the  issued  and
outstanding shares  of  Common  Stock.  As a  result  of  such  ownership,  such
shareholders  as a group may have the ability  to elect or remove all members of
the Board of  Directors and thereby  control the affairs  and management of  the
Company  and may  have the power  to approve most  actions requiring shareholder
approval. Such a level of ownership  can have the effect of delaying,  deferring
or  preventing a change in  control of the Company  and can adversely affect the
voting and other  rights of the  other holders of  Common Stock. See  "Principal
Shareholders."
 
NO PRIOR PUBLIC MARKET; DETERMINATION OF OFFERING PRICE; POSSIBLE VOLATILITY OF
STOCK PRICE
 
    Prior  to the Offering,  there has been  no public market  for the Company's
Common Stock and there can be no assurance that an active trading market for the
Common Stock will develop or be sustained after the Offering. The initial public
offering price for  the Shares  will be  determined by  negotiation between  the
Company and the Representatives and may bear no relationship to the market price
of  the Shares  subsequent to the  Offering. Following the  Offering, the market
price for the Common Stock may be highly volatile depending on various  factors,
including  the general  economy, stock  market conditions,  announcements by the
Company, its  distributors or  competitors, and  fluctuations in  the  Company's
operating results. See "Underwriting."
 
ADVERSE EFFECT OF FUTURE SALES OF COMMON STOCK
 
    The  availability  for  sale  of  certain shares  of  Common  Stock  held by
shareholders of the Company after the Offering could adversely affect the market
price of  the Common  Stock.  Of the  5,213,220 shares  of  Common Stock  to  be
outstanding  following the Offering, 1,500,000  will be freely tradeable without
restrictions or additional  registration under  the Securities Act  of 1933,  as
amended (the "Securities Act"). The remaining 3,713,220 shares will be available
for  resale under Rule  144 after the expiration  of applicable holding periods.
Holders of 3,176,100 of the outstanding shares have agreed not to offer, sell or
otherwise dispose of  any of their  shares for a  period of 180  days after  the
effective  date of the  Offering, without the  prior written consent  of John G.
Kinnard and  Company,  Incorporated.  Sales  of  a  substantial  amount  of  the
currently  outstanding shares of Common Stock in the public market may adversely
affect the market price  of the Common Stock.  See "Description of  Securities,"
"Shares Eligible for Future Sale" and "Underwriting."
 
                                       9
<PAGE>
   
ADVERSE EFFECT OF ANTI-TAKEOVER PROVISIONS AND UNDESIGNATED STOCK
    
 
   
    The  effect of certain provisions of  the Minnesota Business Corporation Act
and the ability  of the Board  of Directors  of the Company  to issue  preferred
stock  from  its  class  of  2,000,000  shares  of  undesignated  stock  without
shareholder approval may have the effect  of delaying or preventing a change  in
control  or merger of the Company, which could operate to the detriment of other
shareholders. Further, the  anti-takeover effects of  the issuance of  preferred
stock  may deny shareholders the receipt of  a premium on their Common Stock and
may also  have a  depressive effect  on the  market price.  See "Description  of
Securities."
    
 
IMMEDIATE, SUBSTANTIAL DILUTION TO PURCHASERS IN THE OFFERING
 
    Purchasers of the Shares offered hereby will incur immediate and substantial
dilution in the net tangible book value of their purchased Shares (approximately
$6.79  per Share assuming an  offering price of $9.50  per share). Investors may
also experience additional dilution as a  result of the exercise of  outstanding
stock options and warrants. See "Dilution."
 
NO DIVIDENDS
 
    The  Company has never paid any cash  dividends on its Common Stock and does
not anticipate paying such dividends  for the foreseeable future. See  "Dividend
Policy."
 
                                USE OF PROCEEDS
 
    The  net  proceeds to  the Company  from  the sale  of the  1,500,000 Shares
offered to the  public hereby  at an assumed  initial public  offering price  of
$9.50   per  Share  are   estimated  to  be   $12,850,000  ($14,816,500  if  the
Underwriters' overallotment option  is exercised  in full)  after deducting  the
underwriting  discount and  estimated expenses  of the  Offering payable  by the
Company. The  Company currently  intends to  apply approximately  $5,000,000  of
these proceeds to conduct human clinical trials, $2,000,000 to fund research and
development  efforts  and  $1,000,000  for  international  sales  and  marketing
activities. The remaining proceeds and any additional proceeds received upon the
exercise of  the  overallotment  option or  the  Representatives'  Warrants  are
intended to be used for working capital and general corporate purposes.
 
    Pending  utilization of the net proceeds  of the Offering, the Company plans
to invest  such  net proceeds  in  short-term money  market  investments  and/or
short-term investment grade, interest-bearing securities.
 
                                DIVIDEND POLICY
 
    The  Company has never declared or paid a cash dividend on its Common Stock.
The Company currently intends  to retain any earnings  for use in the  operation
and  expansion of its business and therefore does not anticipate paying any cash
dividends in the foreseeable future. See "Description of Securities."
 
                                 CAPITALIZATION
 
    The following table sets forth the  capitalization of the Company as of  May
31,  1996 and as  adjusted to reflect the  sale by the  Company of the 1,500,000
Shares offered to the public hereby at  an assumed Price to Public of $9.50  per
Share. See "Use of Proceeds."
 
<TABLE>
<CAPTION>
                                                                                    MAY 31, 1996
                                                                            ----------------------------
                                                                               ACTUAL       AS ADJUSTED
                                                                            -------------  -------------
<S>                                                                         <C>            <C>
Stockholders' equity:
  Class A Preferred Stock, no par value; 2,000,000 shares authorized; no
    shares issued and outstanding.........................................  $    --        $    --
  Common Stock, no par value; 20,000,000 shares authorized; 3,713,220
    shares issued and outstanding; 5,213,220 shares issued and
    outstanding, as adjusted..............................................      2,527,300     15,377,300
  Contributed capital.....................................................        210,000        210,000
  Deficit accumulated during the development stage........................     (1,417,400)    (1,417,400)
                                                                            -------------  -------------
    Total stockholders' equity............................................  $   1,319,900  $  14,169,900
                                                                            -------------  -------------
                                                                            -------------  -------------
</TABLE>
 
                                       10
<PAGE>
                                    DILUTION
 
    The  following gives effect to the  issuance of the 1,500,000 Shares offered
hereby at an  assumed Price  to Public  of $9.50 per  Share, but  does not  give
effect  to  any exercise  of  outstanding options  and  warrants to  purchase an
aggregate of 1,169,880 shares  of Common Stock. The  net tangible book value  of
the  Company's Common Stock  at May 31,  1996 was $1,290,800  or $.35 per share.
"Net tangible book value" represents the tangible assets less total  liabilities
of  the  Company, and  "net tangible  book  value per  share" was  determined by
dividing the net tangible book value of  the Company by the number of shares  of
Common  Stock outstanding on  May 31, 1996.  See "Capitalization." "Net tangible
book value dilution" represents the difference  between the Price to Public  per
Share  and the  net tangible  book value per  share after  the Offering. Without
taking into account  any changes in  the Company's net  tangible book value  per
share  after May 31, 1996, other  than to give effect to  the sale of the Shares
offered hereby at an assumed price of  $9.50 per Share (net of the  underwriting
discount and estimated expenses of the Offering), the net tangible book value of
the Company at May 31, 1996 would have been $14,140,800 or $2.71 per Share. This
represents  an immediate  increase in  net tangible  book value  to the existing
shareholders of  $2.36  per Share  and  an  immediate net  tangible  book  value
dilution  to purchasers of the Shares of  $6.79 per share, as illustrated by the
following table:
 
<TABLE>
<S>                                                             <C>        <C>
Assumed Price to Public per Share.............................             $    9.50
  Net tangible book value per share at May 31, 1996...........  $     .35
  Increase per share attributable to new investors............       2.36
                                                                ---------
Net tangible book value per share after the Offering..........                  2.71
                                                                           ---------
Net tangible book value dilution per Share to new investors...             $    6.79
                                                                           ---------
                                                                           ---------
</TABLE>
 
    The following table summarizes the  difference between the number of  shares
of  Common Stock purchased from the Company by officers, directors and principal
shareholders, by  other  current  shareholders  and  by  new  investors  in  the
Offering, the total consideration paid to the Company and the average price paid
per  share. The table assumes  that none of the  1,500,000 Shares offered hereby
are purchased in the Offering by  existing shareholders. To the extent  existing
shareholders  purchase  in  the  Offering,  their  percentage  ownership,  total
consideration and average consideration per share will be greater than is shown.
 
<TABLE>
<CAPTION>
                                                      SHARES PURCHASED         TOTAL CONSIDERATION          AVERAGE
                                                   -----------------------  --------------------------   CONSIDERATION
                                                     NUMBER      PERCENT       AMOUNT        PERCENT       PER SHARE
                                                   ----------  -----------  -------------  -----------  ---------------
<S>                                                <C>         <C>          <C>            <C>          <C>
Officers, directors and principal shareholders...   3,134,100       60.1%   $   1,598,100        9.5%      $     .51
Other current shareholders.......................     579,120       11.1%         940,125        5.6%      $    1.62
New investors....................................   1,500,000       28.8%      14,250,000       84.9%      $    9.50
                                                   ----------      -----    -------------      -----
    Total........................................   5,213,220      100.0%   $  16,788,225      100.0%
                                                   ----------      -----    -------------      -----
                                                   ----------      -----    -------------      -----
</TABLE>
 
                                       11
<PAGE>
                            SELECTED FINANCIAL DATA
 
    The following  selected  financial  data  as of  and  for  the  period  from
inception  (August 1,  1994) through December  31, 1994,  and as of  and for the
fiscal year  ended  December 31,  1995  have  been derived  from  the  financial
statements  of the Company which  have been audited by  McGladrey & Pullen, LLP,
independent auditors, whose  report appears  elsewhere in  this Prospectus.  The
financial  data as of May 31, 1995 and 1996 and for the five month periods ended
May 31, 1995 and 1996 and for the period from inception (August 1, 1994) through
May  31,  1996  have  been  derived  from  the  Company's  unaudited   financial
statements.  The  unaudited  financial  statements reflect,  in  the  opinion of
management, all adjustments of  a normal recurring nature  necessary for a  fair
presentation  of financial position  and results of  operations. The results for
the five months ended May 31, 1996 are not necessarily indicative of the results
to be expected for the entire year.  The selected financial data should be  read
in   conjunction  with  Management's  Discussion  and  Analysis  of  Results  of
Operations and  Financial  Condition  and the  Financial  Statements  and  Notes
thereto, all of which are contained elsewhere in this Prospectus.
 
   
<TABLE>
<CAPTION>
                                           PERIOD FROM
                                            INCEPTION                                               PERIOD FROM
                                            (AUGUST 1,                     FIVE MONTHS ENDED         INCEPTION
                                             1994) TO     YEAR ENDED            MAY 31,             (AUGUST 1,
                                           DECEMBER 31,  DECEMBER 31,  --------------------------  1994) TO MAY
                                               1994          1995          1995          1996        31, 1996
                                           ------------  ------------  ------------  ------------  -------------
<S>                                        <C>           <C>           <C>           <C>           <C>
STATEMENT OF OPERATIONS DATA:
  Research and development expense.......   $   33,500    $  353,300   $    109,000  $    215,000  $     601,900
  General and administrative expense.....       73,700       164,800         48,600       309,700        548,200
  Net loss...............................   $ (108,900)   $ (524,400)  $   (159,200) $   (514,700) $  (1,148,000)
                                           ------------  ------------  ------------  ------------  -------------
                                           ------------  ------------  ------------  ------------  -------------
  Net loss per share.....................   $    (0.03)   $    (0.12)  $       (.04) $       (.12)
                                           ------------  ------------  ------------  ------------
                                           ------------  ------------  ------------  ------------
  Weighted average number of common and
    common equivalent shares
    outstanding..........................    3,840,887     4,393,483      4,387,883     4,397,483
                                           ------------  ------------  ------------  ------------
                                           ------------  ------------  ------------  ------------
</TABLE>
    
 
   
<TABLE>
<CAPTION>
                                                                      DECEMBER 31,               MAY 31,
                                                                 ----------------------  ------------------------
                                                                    1994        1995        1995         1996
                                                                 ----------  ----------  ----------  ------------
<S>                                                              <C>         <C>         <C>         <C>
BALANCE SHEET DATA:
  Working capital..............................................  $  367,500  $  415,200  $  231,800  $  1,244,600
  Total assets.................................................     453,500     534,400     285,300     1,506,200
  Total liabilities............................................     247,900     277,400     218,900       186,300
  Total stockholders' equity (1)...............................     205,600     257,100      66,400     1,319,900
</TABLE>
    
 
- ------------------------
   
(1) No dividends have been declared or paid on the Company's Common Stock.
    
 
                                       12
<PAGE>
                    MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                 FINANCIAL CONDITION AND RESULTS OF OPERATIONS
 
OVERVIEW
 
    The Company is a development stage enterprise. Since its inception in August
1994,  the Company has been engaged in  the research, development and testing of
Acyst.  The  Company  acquired  this  technology  from  Brennen  Medical,  whose
principal  shareholders are  majority shareholders of  the Company.  To date the
Company has generated no revenues and has been unprofitable since inception.  As
of  May  31, 1996,  the Company  has  an accumulated  deficit of  $1,417,400 and
expects that its operating losses will continue and increase due to  significant
expenditures for clinical trials, regulatory matters, expansion of marketing and
sales  activities  and scale-up  of  commercial manufacturing  capabilities. See
"Certain Transactions."
 
    The Company was granted an IDE by the FDA and recently began human  clinical
trials  of Acyst. There can  be no assurance that  these clinical trials will be
successful, that the Company will receive FDA or other regulatory approval, that
Acyst will ever  be successfully  commercialized or  achieve market  acceptance,
that the Company will ever have significant sales, or that the Company will ever
achieve profitability. See "Risk Factors."
 
   
PLAN OF OPERATION
    
 
   
    The Company plans to devote substantially all of its efforts during the next
eighteen  months  to  conduct  clinical  trials  and  to  obtain  FDA  and other
regulatory approval for Acyst. The Company also intends to expand its sales  and
marketing  capabilities in connection  with its initial  sales efforts in Europe
and other foreign markets  and to further  develop its commercial  manufacturing
capabilities.  It is  anticipated that  up to  ten additional  employees will be
hired and  that expenditures  related  to manufacturing  equipment will  not  be
significant.  Research  and development  activities  are anticipated  to include
investigating and pursuing other applications related to the Company's  existing
technology.  The  Company  believes that  its  existing cash  resources  and the
proceeds to be obtained from the Offering will be sufficient to satisfy its cash
requirements over the next eighteen months.
    
 
RESULTS OF OPERATIONS
 
    FIVE MONTHS ENDED MAY 31, 1996 COMPARED TO FIVE MONTHS ENDED MAY 31, 1995
 
   
    Research  and  development  expense  includes  costs  associated  with   the
development  and preclinical testing related  to Acyst. Research and development
expenses were $215,000 in the 1996 period and $109,000 in the 1995 period.  This
increase  was primarily  a result of  additional personnel costs  of $59,000 and
increased preclinical testing  costs of $47,000.  The preclinical testing  costs
consist  largely  of  payments  to  investigators  and  product  costs  for  the
preclinical work.  The  Company anticipates  that  it will  continue  to  devote
substantial  resources for the foreseeable  future to conducting clinical trials
and other regulatory matters.
    
 
   
    General and administrative  expenses were  $309,700 in the  1996 period  and
$48,600  in the 1995 period. The increase  was due to a $160,000 non-cash charge
related to  stock option  grants,  a $38,500  increase  in compensation,  and  a
$62,500  increase in  general operating costs  including insurance, professional
fees  and  travel  to  support  increased  operating  activities.  The   Company
anticipates  that general and administrative  expenses will continue to increase
during the  foreseeable future  with the  building of  its marketing  and  sales
efforts  and increases in general operating costs associated with being a public
company.
    
 
    Interest expense was  $4,700 for  the 1996 period  and $6,700  for the  1995
period.  Interest expense relates  to interest incurred  on a note  payable to a
related party. This note payable was paid in full in May 1996.
 
    Interest income was  $14,800 for  the 1996 period  and $5,000  for the  1995
period.  Interest income represents  interest earned by the  Company on its cash
balances. The increase between periods was due to a higher average cash balance,
resulting from proceeds received through sales of Common Stock, net of operating
expenses.
 
    Net loss was $514,700 for the 1996 period and $159,200 for the 1995  period.
As  discussed herein,  the increase  was primarily  due to  overall increases in
research and development  and general  and administrative  expenses required  to
support increased operating activities.
 
                                       13
<PAGE>
    YEAR ENDED DECEMBER 31, 1995 COMPARED TO PERIOD FROM INCEPTION (AUGUST 1,
1994) TO DECEMBER 31, 1994
 
   
    Research  and development expenses were $353,300 for fiscal 1995 and $33,500
for the five month period from inception to December 31, 1994. This increase was
due to  the  combined  effect of  a  full  year of  operations  and  significant
preclinical testing costs of $181,000 and consulting expenditures of $51,000 for
fiscal  1995. The  preclinical testing  costs consisted  largely of  payments to
investigators and product costs for the preclinical work.
    
 
   
    General and administrative expenses were $164,800 in fiscal 1995 and $73,700
for the five month period from inception to December 31, 1994. This increase was
due to the combined effect of a full year of operations and overall increases in
costs due to  increased activities.  Significant costs in  fiscal 1995  included
compensation of $120,000 and professional fees of $10,000.
    
 
    Interest  expense was $16,000 for fiscal 1995  and $3,300 for the five month
period from inception 1994. Interest expense relates solely to interest incurred
on a note payable to a related party.
 
    Interest income was  $9,700 in  fiscal 1995 and  $1,600 for  the five  month
period  from inception to December 31, 1994. Interest income represents interest
earned on the Company's  cash balances. The average  cash balance was higher  in
fiscal  1995 due  to proceeds received  from the  sales of Common  Stock, net of
operating expenses.
 
    Net loss was $524,400 for fiscal 1995 and $108,900 for the five month period
from inception to December 31, 1994. As discussed, this was due to the effect of
a full year of operations and overall increases in research and development  and
general  and  administrative  expenses  required  to  support  higher  levels of
activity.
 
    As a  result of  the  net losses  in  1995 and  1994,  the Company  has  net
operating  loss ("NOL")  carryforwards of $628,000  at December  31, 1995, which
will expire  at various  dates  through 2010.  These  NOL carryforwards  may  be
subject to certain annual limitations, resulting from additional sales of equity
securities  and other changes in ownership. Such events could limit the eventual
tax utilization of these NOL carryforwards.
 
LIQUIDITY AND CAPITAL RESOURCES
 
    Since its inception, the Company has funded its operations primarily through
the private  sales  of common  stock.  Through May  31,  1996, the  Company  had
received approximately $2.5 million in net proceeds through the private sales of
common  stock. As of May 31, 1996, the Company had used cash of $812,300 to fund
operations, $65,100 to  purchase equipment and  intangible assets, $300,000  for
principal payments to Brennen Medical, Inc., a related party, for a note payable
under  an  asset purchase  agreement,  and had  cash  of $1,349,900  and working
capital of $1,244,600. See "Certain Transactions."
 
    The Company expects to continue to  incur substantial expense in support  of
additional  research and development  activities, clinical trials, manufacturing
start up,  establishment  of a  sales  and marketing  organization  and  ongoing
administrative  activities. Although the Company  believes that the net proceeds
from the Offering and its existing cash will be adequate to meet its cash  needs
for  at least  18 months, there  can be no  assurance that the  Company will not
require additional financing within  this time frame. In  the event the  Company
requires additional financing to support its operating requirements or for other
purposes,  it  may seek  to raise  such additional  financing through  public or
private equity financing or from other sources, and/or modify the timing of  its
scheduled  clinical trials and research and development activities. There can be
no assurance that financing from the  Offering or any additional financing  will
be available at all or that, if available, such financing would be obtainable on
terms  favorable  to  the Company.  See  "Risk  Factors --  Need  for Additional
Capital" and "Use of Proceeds."
 
                                       14
<PAGE>
INFLATION
 
    Historically,  inflation has not  had a material impact  on the Company. The
cost of the Company's products  is influenced by the  cost of raw materials  and
labor.  There can  be no  assurance that  the Company  will be  able to  pass on
increased costs to its customers in the future.
 
RECENTLY ISSUED ACCOUNTING STANDARDS
 
    In October 1995, the  FASB issued SFAS No.  123, ACCOUNTING FOR  STOCK-BASED
COMPENSATION,   which  establishes  a   fair-value-based  method  for  financial
accounting and reporting for  stock-based employee compensation plans.  However,
the  new standard allows  compensation to continue  to be measured  by using the
intrinsic value-based method of  accounting prescribed by Accounting  Principles
Board  Opinion No.  25, ACCOUNTING FOR  STOCK ISSUED TO  EMPLOYEES, but requires
expanded disclosures. SFAS No. 123 is effective in fiscal year 1996. The Company
has elected to continue to apply the intrinsic value-based method of  accounting
for stock options.
 
                                    BUSINESS
 
GENERAL
 
   
    Advanced  UroScience is developing  Acyst, an injectable  bulking agent, for
the  treatment  of  stress  urinary  incontinence  due  to  intrinsic  sphincter
deficiency.  Stress urinary incontinence is generally defined as the involuntary
loss of urine as a result of activities that increase intra-abdominal  pressure,
such  as  coughing,  laughing, exercising  or  simply  standing up.  Acyst  is a
proprietary composition of  pyrolytic carbon-coated micro-beads  suspended in  a
carrier  gel. Acyst is  designed to be  injected into the  mucosal lining of the
urethra at the  neck of  the bladder through  a specially  designed needle.  The
injection procedure involves inserting the needle through a standard cystoscope,
allowing  the physician  to view  the bulking  of the  tissue and  the resulting
closure of the bladder opening. This minimally invasive outpatient procedure can
be accomplished  in approximately  30 minutes  and is  designed to  restore  the
patient to urinary continence immediately after the injection procedure.
    
 
    Advanced UroScience has recently commenced human clinical trials of Acyst at
the  Mayo Clinic in  Rochester, Minnesota under  an IDE granted  by the FDA. The
Company expects  to  use  the  data  gathered in  these  trials  to  support  an
application  for  a PMA  from  the FDA.  The  Company is  also  conducting human
clinical trials outside of the United States.
 
    Advanced UroScience believes that  Acyst offers significant advantages  over
existing  management and treatment options and commercially available injectable
bulking agents for sufferers of stress urinary incontinence caused by  intrinsic
sphincter  deficiency.  Unlike  adult diapers  and  pads, which  are  methods of
managing the problem,  Acyst is  designed to  treat and  improve the  condition.
Acyst  is  designed  to  provide  results  immediately  after  injection, unlike
behavioral therapy and pelvic muscle training exercises, which can take  several
weeks  or months before results are  achieved and require ongoing therapy. Acyst
was  specifically  designed   to  address  the   significant  issues  posed   by
commercially  available  injectable  bulking  agents,  namely, biocompatability,
migration  and   absorption.   Acyst   utilizes   nonabsorbable,   nonmigratory,
biocompatible  micro-beads  designed  to be  permanent,  thereby  minimizing the
potential need for retreatment.
 
   
    It is  estimated that  there are  at least  13 million  people with  urinary
incontinence  in  the United  States, of  which 85%  are women.  Approximately 9
million of  the people  with  urinary incontinence  suffer from  stress  urinary
incontinence. The Company believes that the majority of these people suffer from
varying  degrees of instrinsic sphincter deficiency  and may benefit from Acyst.
Initially, the Company will seek FDA approval to market Acyst for the  treatment
of  the severest  forms of  instrinsic sphincter  deficiency, which  the Company
believes affect approximately 1.5 million people. The Company intends to conduct
future human clinical trials to support expanded applications of Acyst. Although
urinary incontinence is most prevalent in  the elderly, it is also common  among
women  under  the age  of  60. It  is  expected that  urinary  incontinence will
continue to  be a  significant health  care  problem for  the adult  female  and
elderly  populations  and  will, in  fact,  increase as  the  growing population
continues to age.
    
 
                                       15
<PAGE>
    The Company's current  focus is  to complete  the human  clinical trials  of
Acyst  and obtain approval to market from the  FDA as well as approval to market
Acyst in  countries  outside  of  the United  States.  The  Company's  marketing
strategy  will be  to target  the large  number of  women suffering  from stress
urinary  incontinence  due  to  intrinsic  sphincter  deficiency  by   educating
physicians  and  other  health care  providers  that treat  these  patients, the
patients themselves and the health care payers.
 
   
    On August 1, 1994, the Company purchased for $300,000 all equipment, patents
and other intellectual property  rights relating to  Acyst from Brennen  Medical
Inc.,  a company controlled by  Mr. Timothy Lawin, Chairman  of the Board of the
Company. A note for the purchase price was repaid in full in 1996. See Note 2 to
the Financial Statements.
    
 
URINARY INCONTINENCE
 
    There are  significant economic  and social  costs associated  with  urinary
incontinence.  According to a 1996 publication from the United States Department
of Health and Human Services, direct costs associated with urinary  incontinence
were  estimated to exceed $15 billion  annually. The perceived stigma associated
with urinary system dysfunction discourages sufferers from seeking treatment and
tends to  hinder  public  awareness  of  the  wide  spread  incidence  of  these
disorders.  For the patients  who are affected, the  problems can be tremendous.
Patients  suffering  from   urinary  incontinence  may   withdraw  from   social
interaction  with  others, including  friends and  family,  causing a  degree of
emotional trauma to all concerned.
 
    TYPES AND CAUSES OF URINARY INCONTINENCE
 
    In the normal urinary tract, continence, or appropriate storage of urine, is
maintained by a complex interplay of anatomic structures. The urinary  sphincter
is  a muscle  at the base  of the bladder  which surrounds the  bladder neck and
urethra (the tube through  which the urine flows  when the bladder empties)  and
aids the bladder in maintaining continence. In a normal system, the bladder neck
and  urinary sphincter  work in  a coordinated  fashion to  act as  a valve. The
various body components are under muscle control to maintain continence.
 
    A malfunction in any part of the urinary tract system can result in  urinary
incontinence.  A broad range  of conditions and disorders  are believed to cause
urinary incontinence, including birth defects, injuries to the pelvic region  or
to  the spinal cord,  neurological diseases and  degenerative changes associated
with aging. The three major types  of urinary incontinence are stress, urge  and
mixed (a mixture of stress and urge) urinary incontinence.
 
   
    Stress  urinary incontinence refers to the  involuntary loss of urine during
coughing, laughing,  sneezing,  jogging or  any  other physical  activity  which
causes  a  sufficient  increase  in  intra-abdominal  pressure.  Stress  urinary
incontinence is the most common type of urinary incontinence in women under  the
age  of 60. This condition varies in severity from those women who leak urine as
a result of certain  sudden movements or physical  activities to those who  leak
urine  simply upon  standing up.  It is  generally believed  that stress urinary
incontinence is caused by one  of two conditions or  a combination of them:  (i)
hypermobility,  a lack  of anatomic  stability caused  primarily by  weak tissue
around the bladder neck, which results  in the abnormal movement of the  bladder
neck and urethra in response to sufficient intra-abdominal pressure or exertion;
or  (ii) intrinsic sphincter deficiency, the  inability of the urinary sphincter
valve muscle to contract and sufficiently close the bladder neck.
    
 
    Urge urinary incontinence refers to the involuntary loss of urine due to  an
unwanted  bladder contraction which is  associated with a strong, uncontrollable
desire to  urinate,  often  referred  to as  urgency.  Causes  of  urge  urinary
incontinence  include  an overactive  bladder muscle,  neurologic abnormalities,
such as  those  caused  by  a  stroke,  and  urethral  instability  or  abnormal
relaxation patterns.
 
    NUMBER OF PEOPLE AFFECTED
 
    The  Agency for Health Care Policy and  Research, an affiliate of the United
States Department of Health and Human  Services reports that there are at  least
13 million people with urinary incontinence in the United States, although exact
figures  are difficult to obtain as a result of the believed under-reporting due
to
 
                                       16
<PAGE>
the  stigma  associated  with  the  condition.  It  is  expected  that   urinary
incontinence  will continue to be a significant health care problem in the adult
female, elderly  and  institutionalized populations  and  will increase  as  the
population continues to age.
 
   
    Of  the estimated 13  million people with  urinary incontinence, the Company
believes that approximately  9 million suffer  from stress urinary  incontinence
due   to  either  hypermobility  or  intrinsic  sphincter  deficiency,  or  some
combination thereof. The  Company believes that  stress urinary incontinence  in
the  majority of cases is  due to a combination  of hypermobility and instrinsic
sphincter deficiency. Initially, the  Company will seek  FDA approval to  market
Acyst   for  the  treatment  of  the  severest  forms  of  instrinsic  sphincter
deficiency, which the Company believes affect approximately 1.5 million  people.
The  Company intends to conduct future human clinical trials to support expanded
applications of Acyst.
    
 
LIMITATIONS OF EXISTING URINARY INCONTINENCE MANAGEMENT AND TREATMENT OPTIONS
 
    Urinary incontinence is currently managed and treated in a variety of  ways.
In many cases the problem is simply managed through the use of adult diapers and
absorbent  pads. Physicians currently treat  urinary incontinence by following a
program that corresponds to  the severity of the  condition and the  physician's
familiarity with the available management and treatment options discussed below.
 
    DIAPERS  AND ABSORBENT  PADS.   Most cases  of urinary  incontinence are not
treated but rather  are managed through  the use of  adult diapers or  absorbent
pads.  The cost of these diapers and pads  can be substantial and is usually not
covered by medical  insurance, creating  a continuous financial  burden for  the
patient.  This management  technique requires  frequent changing  of diapers and
pads to  control odor  and can  be  an embarrassment  to the  patient.  However,
patients  do  have  the convenience  and  privacy of  purchasing  these products
without seeing  a physician.  Industry  sources suggest  retail sales  of  adult
diapers and absorbent pads exceed $1 billion annually.
 
    BEHAVIORAL THERAPY AND PELVIC MUSCLE TRAINING EXERCISES.  Behavioral therapy
and  related  techniques  include  bladder  and  habit  training,  pelvic muscle
exercises (known as  Kegel exercises), biofeedback  and electrical  stimulation.
These  exercises first teach the patient to be  aware of the group of muscles in
the perineal area and to contract them  in a way that builds muscle tone  around
the  bladder neck. These exercises can be  enhanced by the use of vaginal cones,
egg shaped devices with  the same shape and  volume but with progressively  more
weight.  The patient  is asked  to retain  the vaginal  cone by  contracting the
uro-genital diaphragm, which strengthens the muscles around the bladder.  Pelvic
floor  electrical stimulation devices can be used to augment other pelvic muscle
rehabilitation therapies.  An electrical  current is  delivered to  the  patient
which  stimulates the bladder muscles to  contract thereby strengthening them to
achieve better bladder control. Adverse  reactions are minimal but include  pain
and discomfort.
 
    These  relatively non-invasive  therapies could  attract patients  who would
otherwise not seek treatment. Although some patients will be cured and some will
improve, these treatments may  be time consuming, take  several weeks or  months
before  results are evident,  present uncertain outcomes and  must be adhered to
regularly. Further, if the  pelvic exercises are  done incorrectly, the  urinary
incontinence can worsen.
 
    VAGINAL  AND  URETHRAL  INSERTS.    Vaginal  inserts  are  another  form  of
management for stress urinary incontinence that are less invasive than  surgery.
Vaginal  inserts are roughly the size  and shape of contraceptive diaphragms and
are used to obstruct the bladder  neck and urethra by applying pressure  through
the  neighboring vaginal cavity.  While often helpful,  these devices are seldom
completely effective in preventing leakage as  it is difficult to fit a  patient
properly  and apply  enough pressure to  eliminate the leakage  of urine without
causing pain. Other potential adverse side effects include vaginal discharge and
tissue erosion. Urethral inserts act as an expandable stopper to block the  flow
of  urine  when inserted  in the  urethra. These  products are  not commercially
available in the  United States,  although they are  currently undergoing  human
clinical   trials.  Potential   adverse  side  effects   include  urinary  tract
infections, pain and tissue reactions.
 
    PHARMACEUTICALS.   Drug  treatment is  used  to control  multiple  types  of
urinary  incontinence, including  stress urinary  incontinence due  to intrinsic
sphincter deficiency. These drugs tend to fall into one of two categories; those
that affect the contraction  of the muscle tissue  of the bladder (urge  urinary
incontinence)
 
                                       17
<PAGE>
and those that improve the quality of the mucosal lining of the bladder neck and
urethra  (stress urinary  incontinence). The  incidence of  cure is  low and the
potential side  effects include  urinary retention,  nausea, dizziness,  blurred
vision and the possibility of unwanted interactions with other drugs.
 
    INDWELLING  (FOLEY)  CATHETERS.   Variations  of the  indwelling,  or Foley,
catheter are the main products used to control urinary incontinence in a medical
environment. Their use  involves passing  a catheter  into the  bladder via  the
urethra  and either clamping the end of the  catheter at the exit point from the
body, or connecting the catheter to an external urine collection bag. Aside from
the constant  physical and  emotional discomfort  experienced by  patients,  the
direct  path from the exterior  to the bladder provides  a conduit for bacteria,
and often results in bladder infections.
 
   
    SLING PROCEDURES.   The sling procedure  involves elevating and  stabilizing
the  urethra and the  bladder neck to treat  instrinsic sphincter deficiency. In
the sling procedure, either an autologous (patient tissue) or synthetic piece of
material is placed under the urethral-bladder  junction pulling it forward in  a
way  that reinforces and strengthens the sphincter. The surgical approach can be
either through the abdomen,  the vagina or a  combination of both. Surgeries  of
this nature are delicate and complicated procedures in which the outcome depends
on  a number of factors, including the degree of the pathology and the operating
physician's experience.  Since this  procedure is  invasive, the  potential  for
severe  complications exists.  Though attempts  have been  made to  minimize the
invasiveness of this procedure, the trauma is often significant and the cost  of
the procedure high.
    
 
    ARTIFICIAL SPHINCTERS.  The implantable artificial sphincter is a miniature,
hydraulic  medical device that requires an  inflatable cuff be placed around the
urethra. The  artificial  sphincter  requires a  major  surgical  procedure  and
hospitalization  with  the  associated  discomfort  and  high  expense.  Initial
complications are  mainly  associated with  urethral  or bladder  injury  during
implantation.  Delayed complications  include mechanical  problems such  as pump
malfunctioning, fluid leak or tubing kinks, infection and tissue atrophy.
 
    INJECTABLE BULKING AGENTS.  Bulking procedures involve the injection of  the
bulking  agent in the mucosal lining of the neck of the bladder, thereby closing
the bladder  neck,  allowing the  patient  to regain  urinary  control.  Bulking
procedures  are  gaining acceptance  as a  method of  treating certain  types of
stress urinary incontinence. The 1996 Clinical Practice Guidelines published  by
the United States Department of Health and Human Services recommend periurethral
bulking  agents  as  first  line  treatment  for  men  with  intrinsic sphincter
deficiency and for  women with intrinsic  sphincter deficiency who  do not  have
co-existing hypermobility.
 
   
    Bulking  procedures  have  several  advantages  over  other  management  and
treatment  options  for   urinary  incontinence  due   to  intrinsic   sphincter
deficiency.  Adult diapers and absorbent pads can only manage the condition, but
bulking procedures are designed to return the patient to urinary control. Unlike
behavioral therapy and pelvic muscle training exercises, bulking procedures  are
designed  to provide results  immediately following the  injection procedure and
are not dependent on the patient complying with an ongoing exercise regimen that
requires the patient's active participation  in the therapy. Bulking  procedures
are designed to avoid many of the potential side effects of vaginal and urethral
inserts,  pharmaceutical treatments, catheters and invasive surgical procedures.
In addition, because the bulking procedure can be accomplished on an  outpatient
basis,  this  procedure  can  significantly  reduce  the  costs  associated with
surgery. Side effects that may be associated with injectable bulking agents  are
urgency,  pain on  urination, retention and  frequency during  the first 24-hour
post-operative period.
    
 
    The Company believes  that, to  be successful, an  injectable bulking  agent
must  be biocompatible, must not migrate away  from the injection site, must not
be absorbed by the body and must be cost effective. There are two major types of
commercially available injectable bulking agents, those of biological derivation
and those, like Acyst, that are based on synthetic materials.
 
    Biologically derived  bulking agents  are  absorbed by  the body  over  time
thereby typically returning the patient to urinary incontinence. While this type
of  bulking agent can prove initially successful, additional treatments with the
additional inconvenience  and cost  may be  required to  maintain the  patient's
urinary
 
                                       18
<PAGE>
control.  The major product  in this category  is made from  a form of processed
bovine collagen. Additionally, some  practitioners are harvesting the  patient's
own  fat  and  re-injecting it  at  the  bladder neck.  This  procedure  has the
additional disadvantage of  increasing the  complexity and  invasiveness of  the
patient's procedure.
 
    The Company is aware of two synthetic bulking materials currently being used
for  soft tissue  augmentation in  the urinary  tract. The  first of  these is a
teflon paste, which consists  of particles of polytetrafluoroethylene  ("PTFE"),
glycerin and polysorbate. The particles of PTFE are generally in a size range of
1  to 100mm. The smaller particles in  this size range have been associated with
migration in  the  body  which  has raised  questions  of  safety.  Periurethral
inflammatory  reactions have been  associated with the use  of PTFE particles as
bulking agents.
 
    Another synthetic product uses a combination of solid silicone particles and
polyvinylpyrrolidone ("PVP")  gel.  This  product  has  not  been  approved  for
marketing  in  the  United  States  by  the FDA.  The  use  of  silicone  may be
controversial in the  United States  due to  the unresolved  issues relating  to
silicone  gel breast implants.  Also, the product does  have some particles that
are below a size threshold of 80mm where migration is believed to occur.
 
THE ADVANCED UROSCIENCE SOLUTION
 
   
    Acyst is designed to provide the  advantages of bulking procedures over  the
other  methods  of  managing and  treating  stress urinary  incontinence  due to
intrinsic sphincter deficiency while avoiding the principal drawbacks associated
with   the   commercially   available   injectable   bulking   agents,   namely,
biocompatibility,  migration  and  absorption.  Like  other  injectable  bulking
agents, Acyst is injected under the mucosal lining of the urethra to add bulk to
the tissue  and close  the opening  in  the urethra  leading from  the  bladder,
thereby  minimizing or eliminating involuntary  urinary drainage in patients who
suffer from urinary incontinence.
    
 
    Acyst  is  a  proprietary  composition  of  solid  micro-beads  coated  with
pyrolytic  carbon,  which  is the  bulk-enhancing  material, and  a  gel carrier
substance, which suspends the micro-beads,  thus allowing the micro-beads to  be
introduced through a needle to the injection site. The micro-beads are made of a
substrate  material  coated  with pyrolytic  carbon,  giving  them biocompatible
properties. The  biocompatible  nature  of pyrolytic  carbon  coating  has  been
demonstrated  through its  extensive use in  the heart valve  industry since the
late 1960s. The synthetic nature and  physical size of the solid micro-beads  of
Acyst  were selected by the  Company to avoid absorption  by the body, migration
from the  injection  site and  the  potential for  chronic  inflammatory  tissue
response.  The micro-bead size range chosen (251  to 300mm) is at a minimum more
than three times the particle size known to migrate in the body.
 
    Acyst is  packaged in  a sterile  syringe  and is  designed to  be  injected
through a specially designed needle that is inserted down a standard cystoscope.
During  the injection  process, the physician  views the bladder  neck through a
standard cystoscope and  advances the  needle under  the mucosal  lining of  the
bladder  neck.  The injection  site is  viewed while  injecting the  material to
observe the expansion of the mucosal lining which results in increased volume or
bulk at the  bladder neck. Typically  a total  of three or  four milliliters  of
Acyst will be injected in two or three sites at the bladder neck until the sides
of  the  bladder neck  have closed  due to  the increase  in bulk,  allowing the
patient to regain control of urine flow.
 
   
    This minimally invasive  procedure in  an outpatient  setting is  consistent
with newly established clinical practice guidelines for the treatment of urinary
incontinence  that call for minimally invasive  therapies to be attempted first.
The time required for implantation in  patients is approximately 30 minutes  and
is  accomplished without surgical  incision. It is  anticipated that immediately
following the injection procedure, the patient is likely to experience results.
    
 
    When Acyst is initially injected, the carrier gel acts as a transport medium
for the pyrolytic carbon  coated micro-beads. Over a  short period of time,  the
body  encapsulates  the  micro-beads with  its  own collagen,  which  results in
bulking.
 
                                       19
<PAGE>
    The Company believes Acyst will have several significant advantages over the
commercially available injectable bulking agents:
 
        BIOCOMPATIBLE.  The  pyrolytic carbon coated  micro-beads used in  Acyst
    were  chosen for  their demonstrated,  long-term biocompatibility. Pyrolytic
    carbon coating has  been used  by the heart  valve industry  since the  late
    1960s.  Additionally,  the size  of the  micro-beads  was chosen  to improve
    biocompatibility by reducing the  potential for chronic inflammatory  tissue
    response.
 
        NO  ABSORPTION.  Since  the micro-beads are synthetic,  they will not be
    absorbed by the body, thus minimizing the potential need for retreatment.
 
        NO MIGRATION.  The  size of the micro-beads  was specifically chosen  to
    prevent  them from migrating away from the  injection site. As a result, the
    bulking remains in place.
 
   
        COST EFFECTIVE.  The  injection of Acyst can  be done using a  minimally
    invasive  surgical procedure  in an  outpatient setting  and is  designed to
    provide relief immediately following the  injection procedure. As a  result,
    the  Company believes Acyst to be a  cost effective treatment option for the
    patient.
    
 
DEVELOPMENT AND REGULATORY STATUS
 
    Phase 1 clinical trials,  designed to determine the  safety and efficacy  of
Acyst,  recently commenced at the Mayo  Clinic in Rochester, Minnesota, under an
IDE granted by the FDA. The  Company is also conducting clinical trials  outside
of  the United  States. It is  anticipated that a  total of 50  patients will be
injected with Acyst during the United States and foreign clinical trials.
 
    The data gathered from Phase 1 clinical trials will be used to establish the
exact protocol  for the  final phase,  Phase 2,  clinical trials  in the  United
States.  The Phase 2 clinical trials are  designed to obtain data to support the
PMA that must  be obtained  from the  FDA before Acyst  can be  marketed in  the
United  States.  The Company  anticipates  that at  least  200 patients  will be
enrolled in approximately 10 sites throughout the United States. These  patients
will  be followed for two years after  treatment to completely assess the safety
and efficacy  of  Acyst. The  Company  will make  periodic  reports to  the  FDA
concerning  this  phase of  the  clinical testing.  There  can be  no assurance,
however, that the Company  will ever receive marketing  approval for Acyst  from
the  FDA. See "Risk Factors  -- Early Stage of  Clinical Testing; Uncertainty of
Regulatory Approval."
 
MARKETING STRATEGY
 
    Advanced UroScience's Acyst is designed to treat stress urinary incontinence
due to intrinsic sphincter deficiency. The  majority of people that suffer  from
this  condition are  women. As  a result, the  Company will  focus its marketing
effort on the physicians and other  health care professionals that treat  women,
including  gynecology,  urology,  geriatrics  and  the  developing  specialty of
uro-gynecology.
 
    The Company's strategy is  to conduct an educational  campaign to raise  the
awareness  of both physicians and patients of  the availability of Acyst and its
potential advantages over the  existing methods of  treatment. The Company  will
approach  the physicians directly with a direct sales force in the United States
and a network of distributors outside of the United States.
 
    To establish credibility for Acyst, it will be necessary to build a team  of
respected  medical consultants who conduct  clinical evaluations and statistical
studies reflecting the benefits of the product. Further, they will be encouraged
to  publish  the  results  of  their  work  in  medical  journals  and  act   as
spokespersons  for the Company at medical meetings and seminars once the product
has been given regulatory approval. Advanced UroScience also intends to maintain
a presence at appropriate medical  conventions, meetings and seminars to  inform
the  physicians and other appropriate health care professionals of the existence
and uses for Acyst, giving information on the injection procedure and generating
sales leads.
 
    The Company expects  to begin marketing  its product internationally  before
the formal introduction in the United States. The Company has obtained a limited
number  of  export  licenses  and  is  seeking  regulatory  approvals  to permit
international sales of Acyst. It is the intent of the Company to set up a  sales
network of
 
                                       20
<PAGE>
foreign  distributors  to  provide  access  to  customers  in  the international
marketplace. Following  receipt  of the  requisite  FDA approvals,  the  Company
anticipates utilizing a direct sales force to market Acyst in the United States.
 
    The  Company has not yet established  pricing for Acyst. The Company intends
to price the treatment at a level that will position Acyst at prevailing  market
prices for other injectable bulking agents per treatment, currently estimated to
be  approximately $1,100.  The Company  believes that  this pricing  could offer
considerable total savings  over alternative treatment  and management  regimens
since the product is designed to eliminate the ongoing expense of adult diapers,
absorbent  pads or additional treatments. The  average selling price outside the
United States is expected to be less  due to the reimbursement rates of  various
national health plans and the Company's intention to use distributors.
 
RESEARCH AND DEVELOPMENT
 
    To date, the Company has been engaged primarily in the research, development
and  testing of Acyst.  Since inception, the  Company has incurred approximately
$601,900 in research and development expense. The Company believes that it is in
the final stages of its product development of Acyst, although it is  continuing
to  develop technology  internally and with  the assistance  of outside research
expertise to optimize  the materials  and performance  of Acyst  and to  further
develop  its manufacturing processes. Management has allocated $5,000,000 of the
net proceeds of the Offering to conduct the requisite clinical trials of Acyst.
 
    The Company  hopes to  develop concepts  for new  products and  new  product
applications,  including the  possible use of  the injectable  bulking agent for
other bulking applications. Of the net proceeds of the Offering, $2,000,000  has
been allocated for such research and development efforts.
 
PATENTS AND PROPRIETARY RIGHTS
 
    Patents  and  other  proprietary  rights  are  important  to  the  Company's
business. Advanced UroScience uses patents  and other techniques to protect  its
proprietary  technology. The Company's policy is  to file patent applications to
protect technology, inventions and improvements  that it believes are  important
to  its business. On September 19, 1995, a United States patent covering certain
aspects of  Acyst  was  issued  to  the  Company.  The  Company  has  filed  one
corresponding  Patent Cooperation Treaty  application. However, there  can be no
assurance that the Company's product will  not be copied by competitors or  that
claims  will not be  made that the  Company's product infringes  upon patents or
proprietary rights owned by others.
 
    The Company also relies heavily upon trade secrets, know-how and  continuing
technological innovation to develop a competitive position. The Company seeks to
maintain  the  confidentiality of  its proprietary  technology  that may  not be
covered by patent protection  by requiring employees  who work with  proprietary
information  to  sign  a confidentiality  agreement  and by  limiting  access by
parties outside the Company  to such confidential information.  There can be  no
assurance, however, that these measures will prevent the unauthorized disclosure
or  use of this  information, or that  others will not  be able to independently
develop such  information.  Moreover,  as  is the  case  with  any  intellectual
property  rights, enforcement by the Company of  its legal rights can be lengthy
and costly, with  no guarantee of  success. See "Risk  Factors -- Dependence  on
Patents and Proprietary Rights."
 
COMPETITION
 
    Competition  in the  urinary incontinence management  and treatment products
market is intense. The Company's ability  to compete in this market will  depend
primarily upon physician, patient and health care payer acceptance of Acyst as a
safe,  effective and cost  effective treatment for  stress urinary incontinence.
The Company's  ability  to  compete in  this  market  will also  depend  on  the
consistency  of  its product  quality and  delivery  and product  pricing. Other
factors within and outside the Company's control include its product development
and  innovation  capabilities,  its   ability  to  obtain  required   regulatory
approvals,  its ability to protect its proprietary technology, its manufacturing
and marketing  capabilities  and  its  ability to  attract  and  retain  skilled
employees.
 
    Advanced  UroScience views its competition on the basis of management of the
condition versus  treatment of  the condition.  Management of  the condition  is
achieved  through the  use of  adult diapers  and absorbent  pads. Current major
competitors  who  compete  in  this  market  include  Kimberly-Clark  Corp.  and
 
                                       21
<PAGE>
Procter  &  Gamble Co.  In the  treatment  portion of  the market  current major
competitors are Empi, Inc. with its electrical pelvic floor stimulators,  Abbott
Laboratories,  Warners Wellcome, Hoechst Marion  Roussell for the pharmaceutical
treatment; C. R. Bard, Inc., Kendall Co., Mentor Corp., ConvaTec Ltd. and Baxter
International for  catheter/urine  collection  bag  drainage  systems;  American
Medical  Systems, Inc.,  a division of  Pfizer, Boston Scientific  and Johnson &
Johnson for the sling  procedures and artificial sphincter  implants; and C.  R.
Bard,  Inc., Mentor Corp. and Uroplasty, Inc. for injectable bulking agents. The
Company believes that  some of its  current competitors and  others that do  not
have  injectable bulking products are also  seeking to develop competing bulking
agents.
 
    Many  of   the  Company's   competitors  and   potential  competitors   have
significantly  greater  financial,  manufacturing,  marketing,  distribution and
technical resources and experience than the  Company. It is possible that  other
large health care and consumer products companies may enter this industry in the
future.  Furthermore,  smaller  companies,  academic  institutions, governmental
agencies and other public  and private research  organizations will continue  to
conduct   research,  seek  patent  protection  and  establish  arrangements  for
commercializing products. Such products may  compete directly with any  products
which  may be offered by the Company. Finally, competitors in the medical device
industry have in  the past and  may in the  future employ litigation  to gain  a
competitive advantage.
 
REGULATORY AFFAIRS
 
    Government  regulation in  the United  States and  in foreign  countries are
significant factors in the Company's business. Under the 1976 amendments to  the
Federal  Food, Drug and Cosmetic Act (the "FDC Act") and regulations promulgated
thereunder,  manufacturers  of   medical  devices  must   comply  with   certain
regulations  governing  the  testing, manufacture,  packaging  and  marketing of
medical devices. Under the FDC Act,  as amended, medical devices are  classified
by  the FDA into one  of three classes, depending  upon the degree of regulation
the FDA deems necessary to assure the safety and efficacy of the devices.  Class
I  devices are  subject to  only general controls,  while Class  II devices must
comply with certain specified performance standards, in addition to the  general
controls. Class III medical devices (consisting of life support/life sustaining,
diagnostic  or implanted  devices) must  receive premarket  approval by  the FDA
prior to their commercial distribution in  the United States. The industry  norm
for  successful passage through the  process for a Class  III device is three to
seven years.
 
    Acyst is considered a Class III  device. As such, the FDA, with  independent
protocol review and approval by participating medical institutions, must approve
the  Company's  application  for  an  IDE,  permitting  clinical  evaluations of
products on human subjects under controlled experimental conditions. The Company
recently commenced Phase  1 clinical  trials at  the Mayo  Clinic in  Rochester,
Minnesota  under an  IDE granted  by the FDA.  See "Business  -- Development and
Regulatory Status."
 
    The countries of  the European  Community ("EC") are  moving towards  common
regulatory  requirements.  By  June  1998, all  medical  devices  sold  in those
countries must conform to the medical device directive of the EC. The  directive
is  designed to  eliminate barriers to  trade within that  community. Until such
time as all devices conform to  the medical device directive, many devices  will
stay  on the  market in those  countries through conformity  with the applicable
national laws. There is, then, a parallel path for device manufacturers at  this
time.  The  Company plans  to  evaluate both  pathways,  conformity with  the EC
directive and national certification,  in each of its  key markets to  determine
the  most efficient  method to  market its products.  Approval under  the new EC
regime will permit manufacturers to affix a "CE" mark to their products,  making
them eligible to be sold in all the countries of the EC.
 
THIRD-PARTY REIMBURSEMENT
 
    Third-party   payers  such  as  private  insurance  companies,  self-insured
employers,  health  maintenance  organizations  and  governmental  payers  under
Medicare  and Medicaid  programs are an  important source  of reimbursement, but
there is no uniform policy on reimbursement among third-party payers. The Health
Care Financing  Administration  ("HCFA"), which  sets  rates for  Medicare,  has
stated  that Medicare Part B will cover certain endoscopic injections of implant
material for urinary  incontinence due  to intrinsic  sphincter deficiency.  The
Company's  Acyst may meet current  criteria for reimbursement. Potential changes
in reimbursement could drive prices down and may adversely affect the  Company's
reimbursement rates.
 
                                       22
<PAGE>
    Reimbursement  authorities  can  also be  considered  customers  of Advanced
UroScience. They are  customers since  often the  payer will  have to  authorize
treatment  prior  to  it being  reimbursed.  The  Company will  be  proactive in
influencing both  the Medicare/HCFA  national  programs and  individual  private
insurance firms. One aspect of doing this is to build "outcomes assessment" into
the  clinical evaluation of the product. Outcomes assessment involves looking at
all the factors that are  a part of a particular  care regime and comparing  the
results of that regime to others. In this way, the cost and relative efficacy of
a  mode of treatment is evaluated not  only independent of other treatments, but
in comparison to other standards.
 
PRODUCT LIABILITY
 
    The medical products industry is subject to substantial litigation, and  the
Company  faces an inherent business risk of exposure to product liability claims
in the event that the use of its products is alleged to have resulted in adverse
effects to a  patient. There  can be no  assurance that  the Company's  existing
insurance  coverage  limits  are  adequate  to  protect  the  Company  from  any
liabilities which it might incur in connection with the clinical trials of Acyst
or the  initial commercialization  of  Acyst. There  can  be no  assurance  that
liability  claims will not  exceed coverage limits.  Such insurance is expensive
and in  the  future  may not  be  available  on acceptable  terms,  if  at  all.
Consequently, a product liability claim or other claim with respect to uninsured
liabilities  or in excess  of insured liabilities could  have a material adverse
effect on the  business, financial condition  and results of  operations of  the
Company. The Company currently maintains a product liability insurance policy in
the aggregate amount of $5,000,000.
 
MANUFACTURING
 
    The Company will manufacture Acyst at its facilities from components and raw
materials  obtained  from  outside  suppliers.  The  Company  will  purchase the
micro-beads from qualified suppliers  and send them to  an outside vendor to  be
coated  with pyrolytic carbon.  The Company will purchase  the raw materials for
the carrier gel and formulate the carrier gel itself. The manufacturing  process
will  involve the  Company mixing  the beads  with the  carrier gel  and filling
standard syringes with this  mixture. The filled syringes  will be packaged  and
sent  to an  outside vendor  for sterilization and  returned to  the Company for
final inspection.
 
    Certain of the primary raw materials  and components for the manufacture  of
Acyst,  such as the micro-beads and the material needed for the gel carrier, are
currently available to the  Company from single sources.  In the event that  the
Company  is  unable to  obtain these  materials or  components from  its current
suppliers on  acceptable  terms and  is  required  to replace  its  current  raw
materials or components with alternatives, additional testing may be required in
order  for  Acyst to  receive  regulatory approval.  The  Company has  no supply
agreements with any of its identified vendors, although the Company has  entered
into a business relationship agreement regarding one of the main ingredients for
the carrier gel. See "Risk Factors -- Dependence on Suppliers."
 
    The  Company intends  to conduct  all of  its manufacturing  activities in a
class 1,000  clean  room in  accordance  with Good  Manufacturing  Practices  as
required by the FDA and/or ISO 9000 certification.
 
FACILITIES, EQUIPMENT AND PERSONNEL
 
    Presently,  the Company occupies  office and laboratory  space in a facility
located in St. Paul, Minnesota. The  Company leases this space under a  two-year
lease agreement, which began on May 1, 1996 and terminates on May 1, 1998. Lease
payments  are made monthly at a rate of $3,000 per month. Presently, the Company
has six  full-time employees  and one  part-time employee  and expects  to  hire
additional staff as needed.
 
LITIGATION
 
    The Company is not involved in any material litigation.
 
                                       23
<PAGE>
                                   MANAGEMENT
 
DIRECTORS, EXECUTIVE OFFICERS AND KEY PERSONNEL
 
    The  directors, executive officers  and key personnel of  the Company are as
follows:
 
<TABLE>
<CAPTION>
             NAME                   AGE                                   POSITION
- ------------------------------      ---      ------------------------------------------------------------------
<S>                             <C>          <C>
Timothy P. Lawin (1)                    35   Chairman of the Board of Directors and Chief Financial Officer
 
Dean A. Klein                           42   President and Chief Executive Officer
 
Daniel A. White                         44   Vice President -- Sales and Marketing
 
Thomas M. Jaeger                        39   Director of Finance
 
Michael Czura                           43   Director of Manufacturing
 
Richard G. Holcomb                      46   Director of Regulatory Affairs
 
Bruce A. Lawin (2)                      62   Director
 
Mark G. Nosbush (1)(2)                  47   Director
 
Paul E. Colombo (2)                     35   Director
 
James M. Knoblach (1)                   38   Director
 
Harry E. Wells, III                     54   Director
</TABLE>
 
- ------------------------
(1) Compensation Committee
 
(2) Audit Committee
 
    All directors hold office until the  next annual meeting of shareholders  or
until  their successors have been duly elected and qualified. Executive officers
of the Company  are appointed by  and serve at  the discretion of  the Board  of
Directors.   The  Compensation  Committee  provides  recommendations  concerning
salaries and incentive compensation for employees  of the Company and the  Audit
Committee  will review  the results  and scope of  the audit  and other services
provided by the Company's independent public accountants.
 
   
    TIMOTHY P. LAWIN has served  as the Chairman of  the Board of Directors  and
Chief  Financial  Officer of  the Company  since its  inception. Mr.  Lawin, the
founder of the Company, originally developed Acyst within Brennen Medical, Inc.,
a company specializing in  wound care management, where  he has served as  Chief
Executive  Officer and Chairman of  the Board since its  formation in 1993. From
1984 to 1993 Mr. Lawin was  with Bioplasty, Inc., a medical device  manufacturer
and  distributor.  He  first served  as  controller  of Bioplasty  in  1984, was
appointed to executive vice president in 1989, served as president from 1991  to
1993,  and  chief executive  officer from  1992 to  1993. Mr.  Lawin was  also a
director of Bioplasty from 1990 until 1993. From 1989 to 1991, Mr. Lawin  served
as  the Chairman of the  Board for Bio Manufacturing,  Inc., which was a related
manufacturing company of Bioplasty, Inc.  Subsequent to Mr. Lawin's  resignation
from  Bioplasty, Inc. in 1993, Bioplasty,  Inc. filed a petition for bankruptcy,
resulting from litigation regarding its breast implant product. Mr. Lawin  holds
a  B.A. degree  in Accounting  from the  University of  St. Thomas  in St. Paul,
Minnesota. Mr. Bruce Lawin is Timothy Lawin's father.
    
 
   
    DEAN A. KLEIN  has served  as the  Company's President  and Chief  Executive
Officer  since its inception in 1994. Mr. Klein was the President of the urology
products division of  Brennen Medical, Inc.  from May to  August 1994 when  that
division  was  transferred to  the Company.  From  1991 to  1994, Mr.  Klein was
employed by  Medical Care  America as  a General  Manager of  the Critical  Care
America  business units in Minneapolis, Minnesota and Omaha, Nebraska. From 1983
to 1991, Mr. Klein was employed in  a variety of sales and management  positions
with  Baxter International,  Physicians Diagnostics  Division and  its successor
MediSense, Inc. Mr.  Klein's career in  the medical products  industry began  in
1977  with Abbott Laboratories.  He holds a  B.S. degree in  Pharmacy from North
Dakota State University.
    
 
                                       24
<PAGE>
    DANIEL A.  WHITE joined  the Company  in  November 1994  and serves  as  the
Company's  Vice President  -- Sales  and Marketing.  Mr. White  has over fifteen
years of experience  with implantable  devices for the  treatment of  urological
disorders.  From 1992 to 1994,  Mr. White served as  Vice President of Sales and
Marketing for Uroplasty,  Inc. where he  established international  distribution
for that company's implantable urology product. Prior to that time, he served as
Vice  President of Sales  and Marketing for  Bioplasty, Inc. from  1990 to 1992.
From 1981 to 1990, Mr. White was with American Medical Systems, Inc., a division
of Pfizer focused on  the treatment of  urologic dysfunctions including  urinary
incontinence  with implantable devices. Mr. White  held a number of positions at
American Medical Systems, Inc. including most recently the Director of  Domestic
Sales. Mr. White's career in the urology products industry began in 1978 with C.
R.  Bard, Inc. He holds  a degree in Business  Administration from Mankato State
University.
 
    THOMAS M. JAEGER has been the Company's Director of Finance since May  1996.
From  1988 to 1996, Mr.  Jaeger served as the  Chief Financial Officer of Winsor
Grain, Inc.,  a company  involved in  the international  export of  agricultural
commodities.  From 1979 to 1988, he was employed by Arthur Andersen LLP where he
was audit manager for the last three years of his tenure there. Mr. Jaeger is  a
Certified  Public Accountant  and received his  B.S.B.A. in  accounting from the
University of North Dakota.
 
    MICHAEL CZURA has served  as the Company's  Director of Manufacturing  since
January of 1996. From 1993 to 1996, Mr. Czura was employed by a medical division
of  the Ascom Corporation, initially as Operations Manager and later as Director
of Quality Assurance.  Mr. Czura was  the Production Manager  at CIMA Labs  from
1991  to 1993. Prior  to that time,  Mr. Czura spent  six years in  a variety of
manufacturing related positions at  The Upjohn Company. Mr.  Czura holds a  B.S.
degree  in  Industrial  Engineering from  Bradley  University and  a  Masters in
Business Administration from Western Illinois University.
 
    RICHARD G. HOLCOMB,  PH.D. joined the  Company on a  part-time basis in  May
1996  as Director of Regulatory Affairs.  Dr. Holcomb consults on biostatistics,
clinical studies, and regulatory affairs to  the medical device industry in  the
United  States and  Europe and  has served  as the  Company's regulatory affairs
consultant since  inception. He  has over  20 years  experience in  the  medical
device industry with companies such as Diva Medical and Cardiac Pacemakers, Inc.
Dr.  Holcomb has a B.S. degree from  Michigan Tech. University and a M.S. degree
and Ph.D. degree from the University of Minnesota.
 
    BRUCE A. LAWIN has  been a director  of the Company  since its inception  in
1994 and is Mr. Timothy Lawin's father. Mr. Lawin has served as President of The
Specialty Mfg. Co., a company that specializes in flow control products, plastic
injection molding and contract manufacturing since 1969. Mr. Lawin is a director
and  a shareholder of Brennen Medical. Mr. Lawin holds a B.A. degree in Business
Administration from St. Cloud University.
 
    MARK G. NOSBUSH has served as a director of the Company since February 1996.
Mr. Nosbush has served as Vice President  of The Specialty Mfg. Co. since  1979.
Mr. Nosbush holds a B.A. from the University of Minnesota.
 
    PAUL E. COLOMBO has served as a director of the Company since February 1996.
Mr.  Colombo  founded  and  has  been the  President  of  Chorus  Corporation, a
multi-national company  that specializes  in  the manufacture  of  semiconductor
processing  equipment since 1986. Mr. Colombo holds a B.S. degree in engineering
from the University of Minnesota.
 
   
    JAMES M. KNOBLACH  has served as  a director of  the Company since  February
1996.  Mr. Knoblach founded and has served as President of North Star Resources,
an investment and  venture capital  firm, since 1995.  Prior to  that time,  Mr.
Knoblach served as President of North Star Direct which he founded in 1987. From
1983   to  1985,   Mr.  Knoblach  served   as  division   manager  for  Genetics
International, Inc.,  the  predecessor of  MediSense,  Inc. Mr.  Knoblach  is  a
director  of Harbinger Medical,  Inc., a privately  held medical device company.
Mr. Knoblach holds  a M.B.A.  from Harvard  University, a  M.A. from  Georgetown
University,  a  B.S.  from  St.  John's University  and  is  a  Certified Public
Accountant.
    
 
    HARRY E. WELLS,  III has served  as a  director of the  Company since  April
1996.  Mr. Wells has been  employed by Adams, Harkness  & Hill, Inc. since 1969.
Mr. Wells has served as Managing Director in charge
 
                                       25
<PAGE>
of Money Management since 1990 and prior to that served as Director of  Research
from  1981 to 1990. Mr. Wells holds an B.A. from Albion College, M.B.A. from the
University of Michigan and is a Chartered Financial Analyst.
 
EXECUTIVE COMPENSATION
 
    SUMMARY COMPENSATION
 
    The following table  sets forth certain  information regarding  compensation
earned  or  awarded  to the  President  and  Chief Executive  Officer.  No other
executive officer of the Company  received annual salary and bonus  compensation
in excess of $100,000 for 1995.
 
                           SUMMARY COMPENSATION TABLE
 
<TABLE>
<CAPTION>
                                                                                                         LONG TERM
                                                                                                       COMPENSATION
                                                                       ANNUAL COMPENSATION           -----------------
                                                               ------------------------------------     SECURITIES
                                                                                      OTHER ANNUAL      UNDERLYING
                                                                SALARY      BONUS     COMPENSATION        OPTIONS
NAME AND PRINCIPAL POSITION                          YEAR         ($)        ($)          ($)               (#)
- -----------------------------------------------  ------------  ---------  ---------  --------------  -----------------
<S>                                              <C>           <C>        <C>        <C>             <C>
Dean A. Klein, ................................       1994(1)  $   8,400     --       $   1,100(2)         240,000
  President and Chief Executive Officer               1995     $  75,000  $  35,000   $   6,600(2)          30,000
</TABLE>
 
- ------------------------
(1)  From the Company's date of inception  (August 1, 1994) through December 31,
    1994.
 
(2) Represents car allowance.
 
    AGGREGATE OPTIONS EXERCISED IN 1995 AND OPTION VALUES AT DECEMBER 31, 1995
 
    The Chief  Executive Officer  did  not exercise  any  options in  1995.  The
following table sets forth certain information regarding the number and value of
exercisable and unexercisable options to purchase shares of Common Stock held as
of the end of the Company's 1995 fiscal year by the Chief Executive Officer:
 
                 AGGREGATED 1995 FISCAL YEAR-END OPTION VALUES
 
<TABLE>
<CAPTION>
                                                               NUMBER OF SECURITIES              VALUE OF UNEXERCISED
                                                              UNDERLYING UNEXERCISED             IN-THE-MONEY OPTIONS
                                                               OPTIONS AT 12/31/95                AT 12/31/95 ($)(1)
                                                         --------------------------------  --------------------------------
NAME                                                     EXERCISABLE     UNEXERCISABLE     EXERCISABLE     UNEXERCISABLE
- -------------------------------------------------------  -----------  -------------------  -----------  -------------------
<S>                                                      <C>          <C>                  <C>          <C>
Dean A. Klein..........................................     270,000                0        $ 151,200                0
</TABLE>
 
- ------------------------
(1)  Value  of exercisable/unexercisable  in-the-money options  is equal  to the
    difference between  the fair  market  value per  share  of Common  Stock  at
    December  31, 1995 and the option exercise price per share multiplied by the
    number of shares subject  to options. The fair  market value as of  December
    31,  1995 was $1.67 per share as determined by the Board of Directors, based
    on the sales price of common  stock sold through a private placement  during
    this time frame.
 
    OPTIONS GRANTED
 
    The  following table sets  forth the options  that have been  granted to the
Chief Executive Officer during the Company's last fiscal year ended December 31,
1995.
 
                       OPTION GRANTS IN FISCAL YEAR 1995
                              (Individual Grants)
 
<TABLE>
<CAPTION>
                                                         NUMBER OF      PERCENT OF TOTAL
                                                        SECURITIES       OPTIONS GRANTED     EXERCISE
                                                        UNDERLYING        TO EMPLOYEES         PRICE      EXPIRATION
NAME                                                  OPTIONS GRANTED    IN FISCAL YEAR      ($/SHARE)       DATE
- ----------------------------------------------------  ---------------  -------------------  -----------  ------------
<S>                                                   <C>              <C>                  <C>          <C>
Dean A. Klein.......................................        30,000(1)           18.5%        $    1.67     12/31/2005
</TABLE>
 
- ------------------------
(1) 100% vested on date of grant.
 
                                       26
<PAGE>
COMPENSATION OF DIRECTORS
 
    Directors are not currently paid fees for attending meetings. Each member of
the current  Board of  Directors has  received a  nonqualified stock  option  to
purchase  12,000 shares of Common Stock. In addition, the 1996 Stock Option Plan
provides for the automatic  grant to each director  of a nonqualified option  to
purchase  5,000  shares of  Common Stock  upon  the completion  of each  year of
service.
 
EMPLOYMENT AGREEMENTS AND COMPENSATION PLANS
 
    The Company  does not  currently  have any  employment agreements  with  its
executive  officers. During 1994 and 1995, Mr. Klein was compensated pursuant to
the terms of an  employment agreement which agreement  was terminated on May  1,
1996.
 
    Effective May 1, 1996, the Compensation Committee of the Board established a
management  by objective compensation plan for the Chairman of the Board and the
Chief Executive Officer. Pursuant to this  plan, these officers each receive  an
annual  base salary of $135,000  and are eligible to  receive a bonus based upon
the accomplishment of certain business objectives.
 
STOCK OPTIONS
 
   
    The Board of Directors and shareholders of the Company recently adopted  the
1996  Stock Option  Plan (the "Plan")  in order  to provide for  the granting of
stock purchase options to employees, directors and officers of the Company.  The
Plan permits the granting of incentive stock options meeting the requirements of
Section  422  of  the  Internal  Revenue Code  of  1986,  as  amended,  and also
nonqualified stock options which  do not meet the  requirements of Section  422.
The  Company has reserved 500,000  shares of its Common  Stock for issuance upon
exercise of options granted under the Plan. The Company has outstanding  options
to purchase 599,880 shares outside of the Plan.
    
 
LIMITATION OF LIABILITY AND INDEMNIFICATION
 
    The  Company's Articles of Incorporation, as amended, limit the liability of
directors in their capacity as directors  to the Company or its shareholders  to
the full extent permitted by Minnesota law. The Articles provide that a director
shall  not be liable to the Company or its shareholders for monetary damages for
breach of  fiduciary duty  as  a director,  except (i)  for  any breach  of  the
director's  duty of loyalty to the Company or its shareholders, (ii) for acts or
omissions not in good faith or which involve intentional misconduct or a knowing
violation of law, (iii) for dividends, stock repurchases and other distributions
made in violation of Minnesota law or for violations of the Minnesota securities
laws, (iv)  for any  transaction from  which the  director derived  an  improper
personal benefit or (v) for any act or omission occurring prior to the effective
date  of the provision  in the Company's Articles  of Incorporation, as amended,
limiting such  liability. These  provisions do  not affect  the availability  of
equitable  remedies,  such  as an  action  to  enjoin or  rescind  a transaction
involving a breach of fiduciary duty, although, as a practical matter, equitable
relief may not be available. The above provisions also do not limit liability of
the directors for violations of, or relieve them from the necessity of complying
with, the federal securities law.
 
    The Bylaws of the  Company also provide that  the Company will exercise,  to
the   extent  permitted  by  law,  its  power  of  indemnification.  Insofar  as
indemnification  for  liabilities  arising  under  the  Securities  Act  may  be
permitted to directors, officers and controlling persons of the Company pursuant
to  the foregoing provisions, or otherwise, the Company has been advised that in
the opinion of the  Securities and Exchange  Commission (the "Commission")  such
indemnification  is against public policy as expressed in the Securities Act and
is, therefore, unenforceable.
 
                              CERTAIN TRANSACTIONS
 
    Acyst product technology, patent application and certain relevant  equipment
was  acquired  from  Brennen  Medical, Inc.,  whose  principal  shareholders are
majority shareholders of the Company. The  terms of the acquisition included  an
interest bearing note (8% per annum) in the amount of $300,000 of which $100,000
was  paid  in  1994  and $200,000  was  paid  in 1996.  Total  interest  paid in
connection with this note was $24,000.
 
                                       27
<PAGE>
    On May 1,  1996, the Company  entered into a  two-year lease agreement  with
Lawin Enterprises, LLC for the facilities presently occupied by the Company. The
lease covers approximately 2,700 square feet of office and laboratory space at a
rate of $3,000 per month and is on terms believed to be no less favorable to the
Company  than those obtainable from an unrelated third party. Lawin Enterprises,
LLC is owned by  Timothy Lawin, an executive  officer, director and a  principal
shareholder   of  the  Company,  and  Bruce  Lawin,  a  director  and  principal
shareholder of the Company.
 
    Upon formation of the Company,  Timothy Lawin purchased 1,512,000 shares  at
aggregate purchase price of $70. Subsequently, Timothy Lawin transferred 756,000
to  his wife, Lisa Lawin. In the December 1995 private placement by the Company,
Timothy Lawin purchased 7,500 units (each  unit consisting of one share and  one
warrant)  and Brennen Medical, Inc. purchased 36,000 units at $1.67 per unit. In
the December 1994 private placement by the Company, Ms. Lawin purchased  120,000
shares  at $.83 per share.  In December 1995, Timothy  Lawin received a ten-year
nonqualified stock option to purchase 30,000 shares at $1.67 per share.
 
    Upon formation of  the Company, Dean  Klein purchased 108,000  shares at  an
aggregate  purchase price of $5.  In the December 1994  private placement by the
Company, Mr. Klein purchased  60,600 shares at $.83  per share. In the  December
1995  private placement by the Company, Mr. Klein purchased 7,500 units at $1.67
per unit.  In August  1994, Mr.  Klein received  a ten-year  nonqualified  stock
option  to purchase  240,000 shares  at $1.04 per  share. In  December 1995, Mr.
Klein received a ten-year nonqualified stock option to purchase 30,000 shares at
$1.67 per share.
 
    Upon formation of the  Company, Bruce Lawin purchased  540,000 shares at  an
aggregate  purchase price  of $25.  In December 1994  and May  1995, Bruce Lawin
transferred an aggregate of  108,000 shares to his  son, Timothy Lawin,  108,000
shares to his daughter-in-law, Lisa Lawin, and 108,000 shares to a trust for the
benefit  of his  granddaughter, Elizabeth  Lawin. In  the December  1994 private
placement by  the Company,  Bruce Lawin  purchased 120,000  shares at  $.83  per
share.  In  the December  1995  private placement  by  the Company,  Bruce Lawin
purchased 30,000 units at $1.67 per unit. In December 1995, Bruce Lawin received
a ten-year nonqualified  stock option  to purchase  12,000 shares  at $1.67  per
share.
 
                                       28
<PAGE>
                             PRINCIPAL SHAREHOLDERS
 
    The  following table sets  forth, as of  the date of  this Prospectus and as
adjusted to reflect the sale of  the Shares offered hereby, certain  information
regarding  beneficial ownership of the Company's Common Stock by (i) each person
known by  the  Company to  be  the  beneficial owner  of  more than  5%  of  the
outstanding  Common Stock,  (ii) each director  of the Company,  (iii) the Chief
Executive Officer and (iv) all executive  officers and directors of the  Company
as  a group. The  following information assumes that  the named individuals will
not be purchasing any Shares in the Offering.
 
   
<TABLE>
<CAPTION>
                                                            SHARES
                                                         BENEFICIALLY       PERCENT BEFORE     PERCENT AFTER
NAME AND ADDRESS                                          OWNED (1)            OFFERING          OFFERING
- ---------------------------------------------------  --------------------  -----------------  ---------------
<S>                                                  <C>                   <C>                <C>
Timothy P. Lawin (2)(3)............................         2,073,000              54.7%             39.2%
 
Dean A. Klein (2)(4)...............................           453,600              11.4%              8.3%
 
Bruce A. Lawin (5)(6)..............................           408,000              10.9%              7.8%
 
Mark G. Nosbush (7)................................            27,000                 *                 *
 
Paul E. Colombo (6)(8).............................           192,000               5.1%              3.7%
 
James M. Knoblach (9)..............................           147,000               3.9%              2.8%
 
Harry E. Wells, III (10)...........................           162,000               4.3%              3.1%
 
Lisa Lawin (11)....................................         2,073,000              54.7%             39.2%
 
Marcellus P. Knoblach (12).........................           390,000              10.0%              7.2%
 
All executive officers and directors as a group (8
 persons) (13).....................................         3,612,600              82.1%             61.2%
</TABLE>
    
 
- ------------------------
 *  Less than one percent.
 
(1) Shares  not outstanding  but  deemed beneficially  owned  by virtue  of  the
    individual's  right to  acquire them  as of the  date of  the Prospectus, or
    within 60 days of such date, are treated as outstanding when determining the
    percent of  the class  owned by  such individual  and when  determining  the
    percent owned by the group. For purposes of calculating the percent of class
    owned  after the Offering,  it was assumed that  the officers, directors and
    principal shareholders will not be purchasing Shares in the Offering. Unless
    otherwise indicated, each  person named or  included in the  group has  sole
    voting  and investment power with respect to  the shares of Common Stock set
    forth opposite the shareholder's name.
 
(2) The address of  the executive officers  is 1290 Hammond  Road, St. Paul,  MN
    55110.
 
   
(3)  Includes  984,000 shares  held by  Lisa Lawin  (Mr. Timothy  Lawin's wife),
    108,000 shares held by Mr. Timothy  Lawin's daughter, 36,000 shares held  by
    Brennen  Medical  (a corporation  controlled by  Mr. Timothy  Lawin), 36,000
    shares which  may be  purchased  upon exercise  of a  currently  exercisable
    warrant  held by Brennen  Medical, and 37,500 shares  which may be purchased
    upon exercise  of currently  exercisable options  and warrants  held by  Mr.
    Timothy Lawin.
    
 
(4)  Includes 277,500 shares  which may be purchased  upon exercise of currently
    exercisable options and warrants.
 
(5) Mr. Bruce Lawin's address is 5858 Centerville Road, St. Paul, MN 55110.
 
(6) Includes 42,000  shares which may  be purchased upon  exercise of  currently
    exercisable options and warrants.
 
(7)  Includes 19,500  shares which may  be purchased upon  exercise of currently
    exercisable options and warrants. Mr. Nosbush's address is 5858  Centerville
    Road, St. Paul, MN 55110.
 
(8) Mr. Colombo's address is 1290 Hammond Road, St. Paul, MN 55110.
 
                                       29
<PAGE>
(9)  Includes 72,000  shares which may  be purchased upon  exercise of currently
    exercisable options  and  warrants. Mr.  James  Knoblach's address  is  1552
    Prairie Hill Road, St. Cloud, MN 56301.
 
(10)  Includes 12,000 shares that are not  outstanding but may be purchased upon
    exercise of currently exercisable options and 150,000 shares held by  Adams,
    Harkness  and  Hill Partners  Fund. Mr.  Wells is  the Managing  Director in
    charge of Money Management and a director of Adams, Harkness and Hill,  Inc.
    and  a director of Adams, Harkness and Hill Partners Fund. His address is 60
    State Street, 12th Floor, Boston, MA 02109.
 
   
(11) Includes 871,500  shares held by  Timothy P. Lawin  (Ms. Lawin's  husband),
    108,000 shares held by their daughter, 36,000 shares held by Brennen Medical
    (a  corporation controlled by Mr. Timothy Lawin), 36,000 shares which may be
    purchased upon exercise of a  currently exercisable warrant held by  Brennen
    Medical, and 37,500 shares which may be purchased upon exercise of currently
    exercisable  options and  warrants held  by Mr.  Timothy Lawin.  Ms. Lawin's
    address is c/o Advanced  UroScience, Inc., 1290 Hammond  Road, St. Paul,  MN
    55110.
    
 
   
(12) Includes 180,000 shares which may be purchased upon exercise of a currently
    exercisable  warrant. Mr. Marcellus  P. Knoblach's address  is 4170 Thielman
    Lane, St. Cloud, MN 56301.
    
 
(13) Includes 688,500 shares which may  be purchased upon exercise of  currently
    exercisable options and warrants.
 
                           DESCRIPTION OF SECURITIES
 
   
    The authorized capital stock of the Company consists of 22,000,000 shares of
capital  stock, no par  value, of which  20,000,000 shares are  Common Stock and
2,000,000 shares  are undesignated  as  to class  ("Undesignated Stock").  In  a
recent  shareholders'  meeting the  Class A  Preferred  Stock was  replaced with
Undesignated Stock. The Company has  approximately 40 shareholders of record  of
its capital stock.
    
 
COMMON STOCK
 
    The Company has 3,713,220 shares of Common Stock issued and outstanding. The
holders  of the Common  Stock: (i) have  equal ratable rights  to dividends from
funds legally  available therefor,  when, as  and if  declared by  the Board  of
Directors  of the Company; (ii) are entitled  to share ratably in all the assets
of the Company available  for distribution to holders  of the Common Stock  upon
liquidation,  dissolution or winding up of the  affairs of the Company; (iii) do
not have  preemptive,  subscription  or  conversion  rights  and  there  are  no
redemption  or sinking fund provisions applicable thereto; and (iv) are entitled
to one vote  per share  on all  matters which shareholders  may vote  on at  all
meetings  of shareholders.  All shares of  the Common Stock  now outstanding are
fully paid and nonassessable.
 
    The holders of the Common Stock do not have cumulative voting rights,  which
means that the holders of more than 50 percent of such outstanding shares voting
for  the election of directors can elect all  of the directors of the Company to
be elected, if  they so  choose. In  such event,  the holders  of the  remaining
shares will not be able to elect any of the Company's directors.
 
   
UNDESIGNATED STOCK
    
 
   
    Under  governing  Minnesota  law  and  the  Company's  Amended  Articles  of
Incorporation, no action by  the Company's shareholders  is necessary, and  only
action  of the Board of Directors is  required, to authorize the issuance of any
of the Undesignated Stock. The Board of Directors is empowered to establish, and
to designate the name  of, each class  or series of  shares of the  Undesignated
Stock  and to  set the  terms of  such shares  (including terms  with respect to
redemption, sinking  fund,  dividend, liquidation,  preemptive,  conversion  and
voting  rights and  preferences). Accordingly,  the Board  of Directors, without
shareholder approval, may issue Undesignated  Stock with terms (including  terms
with  respect to  redemption, sinking  fund, dividend,  liquidation, preemptive,
conversion and voting rights  and preferences) that  could adversely affect  the
voting power and other rights of holders of the Common Stock.
    
 
   
    The  existence of Undesignated Stock may  have the effect of discouraging an
attempt, through acquisition of a substantial number of shares of Common  Stock,
to acquire control of the Company with a view to
    
 
                                       30
<PAGE>
   
effecting  a merger, sale  or exchange of  assets or a  similar transaction. The
anti-takeover effects  of  the  Undesignated Stock  may  deny  shareholders  the
receipt of a premium on their Common Stock and may also have a depressive effect
on the market price of the Common Stock.
    
 
MINNESOTA BUSINESS CORPORATION ACT
 
    Section  302A.671 of the  Minnesota Business Corporation  Act provides that,
unless the  acquisition of  certain new  percentages of  voting control  of  the
Company  (in excess of 20%, 33 1/3% or  50%) by an existing shareholder or other
person is approved by the holders of a majority of the outstanding voting  stock
other  than shares held by the acquirer  (if already a shareholder) and officers
and directors who are also employees  of the Company, the shares acquired  above
any  such new percentage level of voting  control will not be entitled to voting
rights. In addition, if the requirements of this Section are not satisfied,  the
Company may redeem the shares so acquired by the acquirer at their market value.
Section 302A.671 generally does not apply to a cash offer to purchase all shares
of  voting stock of the issuing corporation if such offer has been approved by a
majority vote of disinterested directors of the issuing corporation.
 
    Section 302A.673 of the Minnesota Business Corporation Act restricts certain
transactions between the Company  and a shareholder  who becomes the  beneficial
holder of 10% or more of any class of the Company's outstanding voting stock (an
"interested  shareholder") unless a  majority of the  disinterested directors of
the Company have approved, prior to the date on which the shareholder acquired a
10% interest, either the  business combination transaction  suggested by such  a
shareholder  or  the  acquisition  of  shares that  made  such  a  shareholder a
statutory interested shareholder. If such  prior approval is not obtained,  this
section  imposes a four-year prohibition from the interested shareholder's share
acquisition date on  mergers, sales  of substantial  assets, loans,  substantial
issuance  of stock and various other  transactions involving the Company and the
interested shareholder or its affiliates.
 
    In the event  of certain  tender offers for  stock of  the Company,  Section
302A.675  of the Minnesota Business Corporation Act precludes the tender offeror
from acquiring additional  shares of stock  (including acquisitions pursuant  to
mergers, consolidations or statutory share exchanges) within two years following
the  completion of such an  offer unless the selling  shareholders are given the
opportunity to sell  the shares on  terms that are  substantially equivalent  to
those  contained in the  earlier tender offer.  The Section does  not apply if a
committee of  the  Board  consisting  of  all  of  its  disinterested  directors
(excluding  present  and  former  officers  of  the  corporation)  approves  the
subsequent acquisition before the  shares are acquired  pursuant to the  earlier
tender offer.
 
    These statutory provisions could have the effect of delaying or preventing a
change  in the control of the Company in a transaction or series of transactions
not approved by the Board of Directors.
 
TRANSFER AGENT AND REGISTRAR
 
    The Transfer Agent and Registrar with respect to the Company's Common  Stock
is Norwest Bank Minnesota, N.A.
 
                                       31
<PAGE>
                        SHARES ELIGIBLE FOR FUTURE SALE
 
    The  Company has outstanding 3,713,200 shares  of Common Stock. In addition,
as of the date  of this Prospectus, the  Company has outstanding 599,880  shares
reserved  for issuance upon exercise of options granted. Of the 5,213,220 shares
to be outstanding after the Offering, 1,500,000 will be freely tradeable without
restrictions or registration under the  Securities Act. The remaining  3,713,220
shares  are subject to restrictions and  will become transferable under Rule 144
after the expiration of applicable  holding periods. Of the outstanding  shares,
3,176,100  shares are subject to lockup agreements pursuant to which the holders
of such shares agreed not  to offer, sell or otherwise  dispose of any of  their
shares  for  a period  of 180  days after  the effective  date of  the Offering,
without the prior written consent of John G. Kinnard and Company, Incorporated.
 
    In general, under Rule 144 a person (or persons whose sales are  aggregated)
who beneficially owns shares acquired privately from the Company or an affiliate
of the Company at least two years previously and an affiliate of the Company who
beneficially  owns shares  acquired (whether  or not  such shares  were acquired
privately) from the Company or  an affiliate of the  Company at least two  years
previously,  are  entitled to  sell within  any three-month  period a  number of
shares that does not exceed the greater of 1% of the then outstanding shares  of
the Company's Common Stock or the average weekly trading volume in the Company's
Common  Stock during the four calendar weeks preceding the filing of notice with
the Commission  in connection  with such  sale. Sales  under Rule  144 are  also
subject  to  certain  manner-of-sale  provisions,  notice  requirements  and the
availability of current public information about  the Company. A person who  has
not  been  an affiliate  of  the Company  at any  time  during the  three months
preceding a sale and who beneficially  owns shares acquired from the Company  or
an  affiliate of the Company at least three years previously is entitled to sell
all such shares under Rule 144 without  regard to any of the limitations of  the
Rule.
 
    In  addition, Rule 144A under the Securities Act, as currently in effect, in
general, permits  unlimited  resales of  certain  restricted securities  of  any
issuer  provided that the purchaser is an institution that owns and invests on a
discretionary basis  at least  $100 million  in securities  or is  a  registered
broker-dealer  that owns and invests $10 million in securities. Rule 144A allows
the  existing  shareholders  of  the  Company  to  sell  their  shares  to  such
institutions and registered broker-dealers without regard to any volume or other
restrictions.  Unlike under Rule 144, restricted securities sold under Rule 144A
to nonaffiliates do not lose their status as restricted securities.
 
    The Company cannot predict the effect, if any, that sales of the  securities
subject  to  the previously  described lockup  or Rule  144 restrictions  or the
availability of such securities for sale could have on the market price, if any,
prevailing from time to time. Nevertheless, sales of substantial amounts of  the
Company's  securities, including the securities  offered hereby, could adversely
affect prevailing market prices  of the Company's  securities and the  Company's
ability  to raise  additional capital by  occurring at  a time when  it would be
beneficial for the Company to sell securities.
 
                                       32
<PAGE>
                                  UNDERWRITING
 
    The  Underwriters  named  below,  for which  John  G.  Kinnard  and Company,
Incorporated and Pennsylvania Merchant Group Ltd are acting as representative(s)
(the "Representatives"),  have  severally  agreed,  subject  to  the  terms  and
conditions  of the Underwriting Agreement with  the Company to purchase from the
Company the  1,500,000 shares  of Common  Stock offered  hereby. The  number  of
Shares  that each Underwriter has  agreed to purchase is  set forth opposite its
name below:
 
<TABLE>
<CAPTION>
UNDERWRITER                                              NUMBER OF SHARES
- -------------------------------------------------------  -----------------
<S>                                                      <C>
John G. Kinnard and Company, Incorporated..............
Pennsylvania Merchant Group Ltd........................
 
                                                         -----------------
    Total..............................................       1,500,000
                                                         -----------------
                                                         -----------------
</TABLE>
 
    The Underwriting Agreement  provides that the  several Underwriters will  be
obligated  to purchase all  of the 1,500,000  Shares offered hereby,  if any are
purchased.
 
    The Underwriters propose to offer the shares  to the public at the Price  to
Public  set forth on  the cover page of  this Prospectus and  to dealers at such
price less a concession not in  excess of $     per share. The Underwriters  may
allow,  and such dealers  may reallow, a  concession not in  excess of $     per
share to certain other brokers and  dealers. After the initial public  offering,
the  Price  to  Public,  concession  and  reallowance  may  be  changed  by  the
Representatives. Additionally, the Company has agreed to pay the Representatives
their accountable expenses up to a maximum of $50,000. The Company has paid  the
Representatives $10,000 as an advance against the accountable expenses.
 
    The  Company has  granted the Underwriters  an option  exercisable within 30
days after  the effective  date  of the  Registration  Statement of  which  this
Prospectus  is a part, to purchase up  to an additional 225,000 shares of Common
Stock at the Price to Public, less the Underwriting Discount shown on the  cover
page  of this Prospectus. The Underwriters may exercise such option only for the
purpose of covering any overallotments in the sale of the Shares of Common Stock
offered hereby.
 
    The  Company  has  agreed  to  sell  to  the  Representatives,  for  nominal
consideration,  warrants to  purchase an  aggregate of  up to  150,000 shares of
Common Stock (the  "Representatives' Warrants").  The Representatives'  Warrants
may  be  exercised  in whole  or  in  part commencing  twelve  months  after the
effective date of the Registration Statement of which this Prospectus is a  part
and for a period of four years thereafter, at an exercise price equal to 120% of
the  Price to Public. During the term of the Representatives' Warrants, they may
not be transferred,  sold, assigned or  hypothecated except to  officers of  the
Representatives.  The Representatives' Warrants contain anti-dilution provisions
providing for appropriate adjustments on  the occurrence of certain events,  and
contains  customary demand  and participatory  registration rights.  Any profits
realized by the Representatives upon the sale of such warrant or the  securities
issuable   upon  exercise  thereof  may   be  deemed  to  constitute  additional
underwriting compensation.
 
    The Representatives have informed the  Company that the Underwriters do  not
intend  to confirm sales  to any account over  which they exercise discretionary
authority.
 
    The Underwriting Agreement provides  for reciprocal indemnification  between
the  Company,  the  Underwriters  and their  controlling  persons  against civil
liabilities in connection  with the  Offering, including  liabilities under  the
Securities  Act of 1933, as amended.  Insofar as indemnification for liabilities
arising under  the Securities  Act of  1933  may be  permitted pursuant  to  the
foregoing  provisions, the Company has been informed that, in the opinion of the
Commission, such indemnification is against  public policy as expressed in  such
Act and is therefore unenforceable.
 
                                       33
<PAGE>
    Holders  of  Common  Stock  of  the Company,  who  beneficially  own  in the
aggregate 3,176,100 shares, have  agreed that they will  not, without the  prior
consent  of John G.  Kinnard and Company, Incorporated,  publicly offer, sell or
grant any option to  sell any securities  of the Company in  the open market  or
otherwise for a period of 180 days from the effective date of the Offering.
 
   
    Prior to the Offering there has been no public trading market for the Common
Stock.  The initial public offering  price of the Shares  has been determined by
negotiations between the Company and  the Representatives and bears no  relation
to  the Company's current earnings, book value, net worth or financial statement
criteria of  value.  Among the  factors  considered in  such  negotiations  were
prevailing  market  conditions,  estimates  of  the  business  potential  of the
Company, the results of operations of the Company in recent periods, the  market
capitalizations  and stages of development of  other companies which the Company
and the Representatives believed to be comparable to the Company and the present
state of the Company's development.
    
 
    The foregoing  is a  brief summary  of the  provisions of  the  Underwriting
Agreement  and  the  Representatives' Warrants  and  does  not purport  to  be a
complete statement of their terms and conditions. The Underwriting Agreement and
the Representatives' Warrants have been filed as an exhibit to the  Registration
Statement of which this Prospectus is a part.
 
                                 LEGAL MATTERS
 
    The  validity of the Common Stock offered hereby will be passed upon for the
Company by Fredrikson & Byron, P.A.  Certain legal matters for the  Underwriters
will be passed upon by Dorsey & Whitney LLP.
 
                                    EXPERTS
 
    The  audited financial statements of the Company included in this Prospectus
and elsewhere in  the Registration Statement  have been audited  by McGladrey  &
Pullen,  LLP, independent public accountants, as  indicated in their report with
respect thereto, and are included herein in reliance upon the authority of  said
firm as experts in accounting and auditing.
 
                             AVAILABLE INFORMATION
 
    Prior  to the Offering,  the Company has  not been subject  to the reporting
requirements of the Securities Exchange Act of 1934. The Company has filed  with
the Washington, D.C. Office of the Commission a Registration Statement under the
Securities  Act of 1933, as amended (the  "Securities Act"), with respect to the
sale of the Shares. This Prospectus does not contain all of the information  set
forth in the Registration Statement, certain portions of which have been omitted
as  permitted  by  the rules  and  regulations  of the  Commission.  For further
information with respect to the Company and the Shares, reference is made to the
Registration Statement, including the exhibits thereto. Statements contained  in
this Prospectus as to the contents of any contract or other document referred to
are not necessarily complete, and in each instance reference is made to the copy
of  such contract  or other  document filed  as an  exhibit to  the Registration
Statement. The Registration Statement may be inspected by anyone without  charge
at the principal office of the Commission at 450 Fifth Street, N.W., Washington,
D.C.  20549, or at one  of the Commission's regional  offices: 500 West Madison,
Suite 1400, Chicago, Illinois 60661-2511 and  7 World Trade Center, 13th  Floor,
New  York, New York,  10048. Copies of all  or any part of  such material may be
obtained upon payment of the prescribed  fees from the Public Reference  Section
of the Commission at 450 Fifth Street, N.W., Washington, D.C. 20549.
 
    The  Company  intends  to  distribute  to  its  shareholders  annual reports
containing audited financial statements and interim reports containing unaudited
financial statements.
 
                                       34
<PAGE>
                           ADVANCED UROSCIENCE, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                         INDEX TO FINANCIAL STATEMENTS
 
<TABLE>
<S>                                                                                     <C>
Independent Auditor's Report..........................................................        F-2
 
Balance Sheets as of December 31, 1994 and 1995 and May 31, 1996 (unaudited)..........        F-3
 
Statements of Operations for the Period from August 1, 1994 (Date of Inception) to
December 31, 1994, Year Ended December 31, 1995, Five Months Ended May 31, 1995 and
1996 (unaudited), and Period from August 1, 1994 to May 31, 1996 (unaudited)..........        F-4
 
Statements of Stockholders' Equity for the Period from August 1, 1994 (Date of
Inception) to December 31, 1994, Year Ended December 31, 1995, Five Months Ended May
31, 1995 and 1996 (unaudited), and Period from August 1, 1994 to May 31, 1996
(unaudited)...........................................................................        F-5
 
Statements of Cash Flows for the Period from August 1, 1994 (Date of Inception) to
December 31, 1994, Year Ended December 31, 1995, Five Months Ended May 31, 1995 and
1996 (unaudited), and Period from August 1, 1994 to May 31, 1996 (unaudited)..........        F-6
 
Notes to Financial Statements.........................................................        F-8
</TABLE>
 
                                      F-1
<PAGE>
                          INDEPENDENT AUDITOR'S REPORT
 
To the Board of Directors
Advanced UroScience, Inc.
St. Paul, Minnesota
 
    We have audited the accompanying balance sheets of Advanced UroScience, Inc.
(A  Development Stage Company) as of December 31, 1994 and 1995, and the related
statements of operations, stockholders'  equity, and cash  flows for the  period
since  inception (August  1, 1994)  through December 31,  1994 and  for the year
ended December 31, 1995.  These financial statements  are the responsibility  of
the  Company's management. Our responsibility is  to express an opinion on these
financial statements based on our audits.
 
    We conducted  our  audits in  accordance  with generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence  supporting
the  amounts and disclosures in the financial statements. An audit also includes
assessing the  accounting  principles used  and  significant estimates  made  by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.
 
    In our opinion, the financial  statements referred to above present  fairly,
in all material respects, the financial position of Advanced UroScience, Inc. as
of  December 31, 1994 and  1995, and the results of  its operations and its cash
flows for the period since inception (August 1, 1994) through December 31,  1994
and  for the year ended December 31, 1995, in conformity with generally accepted
accounting principles.
 
                                          McGladrey & Pullen, LLP
 
Minneapolis, Minnesota
January 26, 1996
 
                                      F-2
<PAGE>
                           ADVANCED UROSCIENCE, INC.
                         (A DEVELOPMENT STAGE COMPANY)
                                 BALANCE SHEETS
 
<TABLE>
<CAPTION>
                                                               DECEMBER 31,
                                                           --------------------   MAY 31,
                                                             1994       1995        1996
                                                           ---------  ---------  ----------
                                                                                 (UNAUDITED)
<S>                                                        <C>        <C>        <C>
ASSETS (NOTE 2)
Current Assets
  Cash and cash equivalents..............................  $ 352,833  $ 474,749  $1,349,909
  Other current assets...................................     62,630     17,849      80,980
                                                           ---------  ---------  ----------
    TOTAL CURRENT ASSETS.................................    415,463    492,598   1,430,889
                                                           ---------  ---------  ----------
Equipment, less accumulated depreciation, 1994 -- $1,204,
  1995 -- $6,839, 1996 -- $10,773........................     16,921     18,364      46,182
Intangible Assets, less accumulated amortization 1994 --
  $1,770,
  1995 -- $7,087, 1996 -- $9,621.........................     21,160     23,484      29,124
                                                           ---------  ---------  ----------
        TOTAL ASSETS.....................................  $ 453,544  $ 534,446  $1,506,195
                                                           ---------  ---------  ----------
                                                           ---------  ---------  ----------
LIABILITIES AND STOCKHOLDERS' EQUITY
Current Liabilities
  Accounts payable.......................................  $  35,367  $  43,558  $   96,195
  Accrued expenses.......................................     12,562     33,805      90,068
                                                           ---------  ---------  ----------
        TOTAL CURRENT LIABILITIES........................     47,929     77,363     186,263
                                                           ---------  ---------  ----------
Related-Party Long-Term Debt (Note 2)....................    200,000    200,000      --
                                                           ---------  ---------  ----------
 
Commitments and Contingencies (Notes 3, 4, and 5)
 
Stockholders' Equity (Notes 2, 3, 4, and 6)
  Class A preferred stock, no par value; 2,000,000 shares
    authorized; no shares issued and outstanding.........     --         --          --
  Common stock, no par value; 20,000,000 shares
    authorized; issued and outstanding: 1994 -- 2,811,600
    shares; 1995 -- 3,170,220 shares, 1996 -- 3,713,220
    shares...............................................    533,900  1,109,812   2,527,312
  Contributed capital....................................     50,000     50,000     210,000
  Deficit accumulated during the development stage.......   (378,285)  (902,729) (1,417,380)
                                                           ---------  ---------  ----------
                                                             205,615    257,083   1,319,932
                                                           ---------  ---------  ----------
        TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY.......  $ 453,544  $ 534,446  $1,506,195
                                                           ---------  ---------  ----------
                                                           ---------  ---------  ----------
</TABLE>
 
                       See Notes to Financial Statements.
 
                                      F-3
<PAGE>
                           ADVANCED UROSCIENCE, INC.
                         (A DEVELOPMENT STAGE COMPANY)
                            STATEMENTS OF OPERATIONS
 
   
<TABLE>
<CAPTION>
                                  PERIOD FROM                                                 PERIOD FROM
                                AUGUST 1, 1994                                               AUGUST 1, 1994
                                   (DATE OF                          FIVE MONTHS ENDED           (DATE
                                  INCEPTION),      YEAR ENDED             MAY 31,            OF INCEPTION),
                                TO DECEMBER 31,   DECEMBER 31,   -------------------------     TO MAY 31,
                                     1994             1995          1995          1996            1996
                                ---------------   ------------   -----------   -----------   --------------
                                                                 (UNAUDITED)   (UNAUDITED)    (UNAUDITED)
<S>                             <C>               <C>            <C>           <C>           <C>
Expenses
  Research and development....    $   33,504       $  353,334    $   108,973   $   215,040    $     601,878
  General and administrative
    (Notes 3 and 4)...........        73,705          164,771         48,574       309,732          548,208
  Interest expense to related
    party (Note 2)............         3,333           16,000          6,667         4,667           24,000
                                ---------------   ------------   -----------   -----------   --------------
                                     110,542          534,105        164,214       529,439        1,174,086
                                ---------------   ------------   -----------   -----------   --------------
Interest Income...............         1,632            9,661          4,972        14,788           26,081
                                ---------------   ------------   -----------   -----------   --------------
        NET LOSS..............    $ (108,910)      $ (524,444)   $  (159,242)  $  (514,651)   $  (1,148,005)
                                ---------------   ------------   -----------   -----------   --------------
                                ---------------   ------------   -----------   -----------   --------------
Net loss per share............    $    (0.03)      $    (0.12)         (0.04)  $     (0.12)
                                ---------------   ------------   -----------   -----------
                                ---------------   ------------   -----------   -----------
Weighted average number of
  common and common equivalent
  shares outstanding..........     3,840,887        4,393,483      4,387,883     4,397,483
                                ---------------   ------------   -----------   -----------
                                ---------------   ------------   -----------   -----------
</TABLE>
    
 
                       See Notes to Financial Statements.
 
                                      F-4
<PAGE>
                           ADVANCED UROSCIENCE, INC.
                         (A DEVELOPMENT STAGE COMPANY)
                       STATEMENTS OF STOCKHOLDERS' EQUITY
         PERIOD FROM AUGUST 1, 1994 (DATE OF INCEPTION) TO MAY 31, 1996
 
<TABLE>
<CAPTION>
                                                                       DEFICIT
                                                                     ACCUMULATED
                                    COMMON STOCK                     DURING THE       TOTAL
                                ---------------------  CONTRIBUTED   DEVELOPMENT  STOCKHOLDERS'
                                 SHARES      AMOUNT      CAPITAL        STAGE        EQUITY
                                ---------  ----------  -----------   -----------  -------------
<S>                             <C>        <C>         <C>           <C>          <C>
Balance, August 1, 1994 (Date
  of Inception)...............     --      $   --       $ --         $   --        $  --
  Initial sale of common stock
    in August 1994............  2,160,000         100     --             --               100
  Acquisition of assets from
    Brennen Medical (Note
    2)........................     --          --         --            (269,375)    (269,375)
  Capital contribution from
    Brennen (Note 3)..........     --          --         50,000         --            50,000
  Private placement issuance
    of common stock in
    November and December at
    $0.83 per share, net of
    stock issuance costs of
    $9,200....................    651,600     533,800     --             --           533,800
  Net loss....................     --          --         --            (108,910)    (108,910)
                                ---------  ----------  -----------   -----------  -------------
Balance, December 31, 1994....  2,811,600     533,900     50,000        (378,285)     205,615
  Private placement issuance
    of common stock in
    February at $0.83 per
    share.....................     24,000      20,000     --             --            20,000
  Private placement issuance
    of common stock in
    November and December at
    $1.67 per share, net of
    stock issuance costs of
    $1,713....................    334,500     555,787     --             --           555,787
  Exercise of common stock
    options at $1.04 per
    share.....................        120         125     --             --               125
  Net loss....................     --          --         --            (524,444)    (524,444)
                                ---------  ----------  -----------   -----------  -------------
Balance, December 31, 1995....  3,170,220   1,109,812     50,000        (902,729)     257,083
  Private placement issuance
    of common stock in January
    and February at $1.67 per
    share (unaudited).........    235,500     392,500     --             --           392,500
  Private placement issuance
    of common stock in April
    and May at $3.33 per share
    (unaudited)...............    307,500   1,025,000     --             --         1,025,000
  Compensation element of
    common stock options
    issued (unaudited) (Note
    4)........................     --          --        160,000         --           160,000
  Net loss (unaudited)........     --          --         --            (514,651)    (514,651)
                                ---------  ----------  -----------   -----------  -------------
Balance, May 31, 1996
  (unaudited).................  3,713,220  $2,527,312   $210,000     $(1,417,380)  $1,319,932
                                ---------  ----------  -----------   -----------  -------------
                                ---------  ----------  -----------   -----------  -------------
</TABLE>
 
                       See Notes to Financial Statements.
 
                                      F-5
<PAGE>
                           ADVANCED UROSCIENCE, INC.
                         (A DEVELOPMENT STAGE COMPANY)
                            STATEMENTS OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                  PERIOD FROM                                                 PERIOD FROM
                                AUGUST 1, 1994                                               AUGUST 1, 1994
                                     (DATE                       FIVE MONTHS ENDED MAY 31,       (DATE
                                OF INCEPTION),     YEAR ENDED                                OF INCEPTION),
                                TO DECEMBER 31,   DECEMBER 31,   -------------------------     TO MAY 31,
                                     1994             1995          1995          1996            1996
                                ---------------   ------------   -----------   -----------   --------------
                                                                 (UNAUDITED)   (UNAUDITED)    (UNAUDITED)
<S>                             <C>               <C>            <C>           <C>           <C>
Cash Flows From Operating
  Activities
  Net loss....................     $(108,910)      $(524,444)     $(159,242)   $  (514,651)   $  (1,148,005)
  Adjustments to reconcile net
    loss to net cash used in
    operating activities:
    Depreciation..............         1,204           5,635          1,850          3,934           10,773
    Amortization..............         1,770           5,317          2,712          2,534            9,621
    Noncash expenses (Notes 3
      and 4)..................        50,000          --             --            160,000          210,000
    Changes in assets and
      liabilities:
      Other current assets....       (19,130)          1,281          7,692        (63,131)         (80,980)
      Accounts payable........        35,367           8,191        (29,766)        52,637           96,195
      Accrued expenses........        12,562          21,243            741         56,263           90,068
                                ---------------   ------------   -----------   -----------   --------------
        NET CASH USED IN
          OPERATING
          ACTIVITIES..........       (27,137)       (482,777)      (176,013)      (302,414)        (812,328)
                                ---------------   ------------   -----------   -----------   --------------
Cash Flows From Investing
  Activities
  Purchase of equipment.......       --               (7,078)        --            (31,752)         (38,830)
  Purchase of intangible
    assets....................       (10,430)         (7,641)        (1,055)        (8,174)         (26,245)
                                ---------------   ------------   -----------   -----------   --------------
        NET CASH USED IN
          INVESTING
          ACTIVITIES..........       (10,430)        (14,719)        (1,055)       (39,926)         (65,075)
                                ---------------   ------------   -----------   -----------   --------------
Cash Flows From Financing
  Activities
  Net proceeds from issuance
    of common stock...........       490,400         619,412         62,500      1,417,500        2,527,312
  Payments on note payable to
    related party.............      (100,000)         --             --           (200,000)        (300,000)
                                ---------------   ------------   -----------   -----------   --------------
        NET CASH PROVIDED BY
          FINANCING
          ACTIVITIES..........       390,400         619,412         62,500      1,217,500        2,227,312
                                ---------------   ------------   -----------   -----------   --------------
        INCREASE (DECREASE) IN
          CASH AND CASH
          EQUIVALENTS.........       352,833         121,916       (114,568)       875,160        1,349,909
Cash and cash equivalents:
  Beginning...................       --              352,833        352,833        474,749         --
                                ---------------   ------------   -----------   -----------   --------------
  Ending......................     $ 352,833       $ 474,749      $ 238,265    $ 1,349,909    $   1,349,909
                                ---------------   ------------   -----------   -----------   --------------
                                ---------------   ------------   -----------   -----------   --------------
</TABLE>
 
                                      F-6
<PAGE>
                           ADVANCED UROSCIENCE, INC.
                         (A DEVELOPMENT STAGE COMPANY)
                      STATEMENTS OF CASH FLOWS (CONTINUED)
 
<TABLE>
<CAPTION>
                                  PERIOD FROM                                                 PERIOD FROM
                                AUGUST 1, 1994                                               AUGUST 1, 1994
                                   (DATE OF                      FIVE MONTHS ENDED MAY 31,       (DATE
                                INCEPTION), TO     YEAR ENDED                                OF INCEPTION),
                                 DECEMBER 31,     DECEMBER 31,   -------------------------     TO MAY 31,
                                     1994             1995          1995          1996            1996
                                ---------------   ------------   -----------   -----------   --------------
                                                                 (UNAUDITED)   (UNAUDITED)    (UNAUDITED)
<S>                             <C>               <C>            <C>           <C>           <C>
Supplemental Disclosures of
  Cash Flow Information
  Cash payments for
    interest..................     $ --            $  18,166      $   8,000    $     5,834    $      24,000
                                ---------------   ------------   -----------   -----------   --------------
                                ---------------   ------------   -----------   -----------   --------------
Supplemental Schedule of
  Noncash Investing and
  Financing Activities
  Acquisition of assets of
    Brennen Medical (Note 2):
    Cash purchase price.......     $ --            $  --          $  --        $   --         $    --
                                ---------------   ------------   -----------   -----------   --------------
                                ---------------   ------------   -----------   -----------   --------------
    Carrying value of
      equipment acquired......     $  18,125       $  --          $  --        $   --         $      18,125
    Carrying value of
      intangibles acquired....        12,500          --             --            --                12,500
    Issuance of note
      payable.................      (300,000)         --             --            --              (300,000)
    Distribution to Brennen's
      stockholders............       269,375          --             --            --               269,375
                                ---------------   ------------   -----------   -----------   --------------
                                   $ --            $  --          $  --        $   --         $    --
                                ---------------   ------------   -----------   -----------   --------------
                                ---------------   ------------   -----------   -----------   --------------
</TABLE>
 
                       See Notes to Financial Statements.
 
                                      F-7
<PAGE>
                           ADVANCED UROSCIENCE, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                         NOTES TO FINANCIAL STATEMENTS
 
NOTE 1.  NATURE OF BUSINESS, DEVELOPMENT STAGE RISKS, AND SIGNIFICANT ACCOUNTING
         POLICIES
 
    NATURE  OF BUSINESS AND DEVELOPMENT STAGE  RISKS:  Advanced UroScience, Inc.
(the Company) was incorporated on July 27, 1994 for the purpose of manufacturing
and selling  medical products  specifically designed  to correct  human  urinary
incontinence.  The technology for the Company's first and only product currently
under development was purchased from Brennen Medical, Inc. (Brennen), a  company
related  through  common  majority owners  (see  Note  2). The  Company  will be
required to obtain  regulatory approval  from the Food  and Drug  Administration
(FDA)  prior to selling the product within the United States. Foreign regulatory
approval must also be obtained prior to selling the product internationally.
 
    The Company is  in the development  stage and has  yet to obtain  regulatory
approval  for its  product. The Company  is currently  beginning the preliminary
phase of the  clinical trials of  their product. In  order to obtain  regulatory
approval,  the Company must  satisfactorily complete clinical  trials which will
result in  significant costs  to the  Company.  The Company  will be  unable  to
complete  their  United  States  clinical trials  unless  additional  capital is
raised. Even  if the  required capital  is raised  and the  clinical trials  are
completed,  there is no assurance that regulatory approval will be obtained and,
if obtained, that a market will develop for the Company's product. Additionally,
substantial time may  pass before  significant revenue  may be  realized by  the
Company. In addition to the proceeds from the private placements of common stock
received  subsequent to year end, the Company  plans to raise the needed capital
through a public offering of common stock.
 
    A summary of the Company's significant accounting policies follows:
 
    CASH AND  CASH EQUIVALENTS:    For purposes  of  reporting cash  flows,  the
Company  considers all unrestricted  cash and Treasury  bills, commercial paper,
and money market funds with an original  maturity of three months or less to  be
cash equivalents.
 
    ACCOUNTING ESTIMATES:  The preparation of financial statements in conformity
with  generally  accepted  accounting  principles  requires  management  to make
estimates and  assumptions  that  affect  the  reported  amount  of  assets  and
liabilities  as of the date of the financial statements and the reported amounts
of revenues and expenses during the reporting period. Actual results may  differ
from those estimates.
 
    CONCENTRATIONS  OF RISK:  The Company  maintains deposits at banks which, at
times, exceed federally insured  limits and in money  market accounts which  are
not  federally  insured. The  Company  has not  experienced  any losses  in such
accounts.
 
    Certain of  the raw  materials and  components for  the manufacture  of  its
product are available only from single sources. In the event that the Company is
unable to maintain these single sources of supply and is required to replace its
current raw materials or components with alternatives, additional testing may be
required in order to receive regulatory approval. Any interruption in the supply
of raw materials or components currently used by the Company or the usage of any
alternatives could adversely affect the Company's operations.
 
    RESEARCH  AND DEVELOPMENT COSTS:   Expenditures for research and development
are charged to operations as incurred.
 
    EQUIPMENT:   Depreciation of  equipment is  computed over  estimated  useful
lives of five to seven years using accelerated methods.
 
    INTANGIBLE  ASSETS:   Intangible assets, consisting  of organizational costs
and patents, are amortized on the straight-line basis over five years.
 
                                      F-8
<PAGE>
                           ADVANCED UROSCIENCE, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 1.  NATURE OF BUSINESS, DEVELOPMENT STAGE RISKS, AND SIGNIFICANT ACCOUNTING
       POLICIES (CONTINUED)
   
    LOSS PER COMMON AND COMMON  EQUIVALENT SHARE:  The  net loss per common  and
common  equivalent share is based upon the weighted average number of common and
common equivalent shares outstanding during each period. Pursuant to  Securities
and Exchange Commission Staff Accounting Bulletin No. 83, stock issued and stock
options  and warrants  granted with  exercise prices  below the  assumed initial
public offering  price during  the 12  month period  preceding the  date of  the
initial  filing  of  the  Registration  Statement  have  been  included  in  the
calculation as if  they were  outstanding for  all periods  presented using  the
treasury  stock  method.  The  weighted  average  number  of  common  and common
equivalent shares outstanding and the net loss per share have been adjusted  for
all periods presented to reflect the stock split described in Note 6.
    
 
    INCOME  TAXES:   Deferred taxes are  provided on a  liability method whereby
deferred tax assets  are recognized  for deductible  temporary differences,  and
operating  loss carryforwards  and deferred  tax liabilities  are recognized for
taxable temporary differences. Temporary differences are the differences between
the reported amounts of assets and liabilities and their tax bases. Deferred tax
assets are reduced by a valuation allowance when, in the opinion of  management,
it  is more likely than not that some  portion or all of the deferred tax assets
will not be realized. Deferred tax  assets and liabilities are adjusted for  the
effects of changes in tax laws and rates on the date of enactment.
 
    FAIR  VALUE OF FINANCIAL INSTRUMENTS:  The following methods and assumptions
were used to estimate the fair value of each class of financial instruments:
 
        CASH EQUIVALENTS:  The carrying amount approximates fair value.
 
        LONG-TERM DEBT:  The fair value of the long-term debt is estimated based
    on interest rates for the same or similar debt offered to the Company having
    the same or  similar remaining maturities  and collateral requirements.  The
    carrying value of the long-term debt approximates fair value.
 
    RECENTLY ISSUED ACCOUNTING STANDARDS:  In October 1995, the FASB issued SFAS
No.   123,  ACCOUNTING   FOR  STOCK-BASED  COMPENSATION,   which  establishes  a
fair-value-based method for financial  accounting and reporting for  stock-based
employee  compensation plans. However,  the new standard  allows compensation to
continue to be measured by using the intrinsic value-based method of  accounting
prescribed  by Accounting Principles Board Opinion  No. 25, ACCOUNTING FOR STOCK
ISSUED TO  EMPLOYEES,  but  requires  expanded  disclosures.  SFAS  No.  123  is
effective  in fiscal year 1996. The Company has elected to continue to apply the
intrinsic value-based method of accounting for stock options.
 
    INTERIM FINANCIAL  INFORMATION (UNAUDITED):   The  financial statements  and
notes  related thereto as of  May 31, 1996, and  for the five-month period ended
May 31, 1995 and 1996, and from August  1, 1994 (date of inception), to May  31,
1996,  are unaudited, but in the  opinion of management include all adjustments,
consisting  only  of  normal  recurring   adjustments,  necessary  for  a   fair
presentation  of the financial position and results of operations. The operating
results for the interim periods are  not indicative of the operating results  to
be  expected for a full  year or for other  interim periods. Not all disclosures
required by generally  accepted accounting principles  necessary for a  complete
presentation have been included.
 
NOTE 2.  ASSET PURCHASE FROM RELATED PARTY
    On  August 1, 1994, the Company purchased certain assets of Brennen relating
to a  product  to  treat urinary  incontinence  (as  discussed in  Note  1)  for
$300,000. The note bears interest at 8 percent per annum and is payable monthly.
Interest  expense of $3,333  and $16,000 was incurred  under this note agreement
for
 
                                      F-9
<PAGE>
                           ADVANCED UROSCIENCE, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 2.  ASSET PURCHASE FROM RELATED PARTY (CONTINUED)
the period  ended  December 31,  1994  and the  year  ended December  31,  1995,
respectively.  The  note  is secured  by  substantially  all the  assets  of the
Company. $100,000 was  repaid on  the note in  December, 1994  with the  balance
repaid in 1996.
 
    The approximate total value of the assets purchased was as follows:
 
<TABLE>
<S>                                                                  <C>
Equipment..........................................................  $  18,125
Intangibles........................................................     12,500
                                                                     ---------
    TOTAL ASSETS PURCHASED.........................................  $  30,625
                                                                     ---------
                                                                     ---------
</TABLE>
 
    Because  the Company and Brennen are  under common control, the Company, for
accounting purposes,  is precluded  from recording  the acquired  assets at  any
amount  other  than Brennen's  carrying cost.  Accordingly, the  excess purchase
price of $269,375 has been treated  as a distribution to Brennen's  stockholders
and  is recorded as a charge  directly to deficit accumulated during development
stage.
 
NOTE 3.  RELATED-PARTY TRANSACTIONS
 
    CONTRIBUTED CAPITAL:  During the period  from August 1, 1994 to November  1,
1994, Brennen agreed to pay, on the Company's behalf, certain operating expenses
(primarily  salary,  rent,  and certain  administrative  expenses)  amounting to
$50,000. As those expenses were incurred by the Company and paid by Brennen, the
Company expensed  those amounts  and recorded  a credit  in the  same amount  to
contributed capital.
 
    OPERATING  LEASE:  Through April, 1996, the Company subleased its office and
research facility  from Brennen  on a  monthly basis.  Rent expense  to  Brennen
amounted  to $1,000 for the period ended  December 31, 1994, $6,000 for the year
ended December 31,  1995. In  May, 1996,  the Company  signed a  two year  lease
directly with the landlord (also a related party) for $36,000 annually.
 
NOTE 4.  STOCKHOLDER TRANSACTIONS
 
    STOCK  ISSUANCE AND WARRANT ARRANGEMENTS:   Since inception, the Company has
raised approximately  $2.5 million  from the  issuance of  common stock  through
private  placements.  During 1995,  the Company  had  a private  placement which
resulted in the issuance of a total of 334,500 shares of common stock. Under the
1995 Private Placement Agreement, each investor was also granted one warrant for
each share  of common  stock  purchased. Each  warrant  allows the  investor  to
purchase  one additional share  of common stock  at $1.67 per  share. A total of
334,500 warrants are  exercisable and  outstanding at December  31, 1995.  These
warrants expire during fiscal 2000.
 
                                      F-10
<PAGE>
                           ADVANCED UROSCIENCE, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 4.  STOCKHOLDER TRANSACTIONS (CONTINUED)
    STOCK OPTIONS:  The Company granted nonqualified options to purchase 600,000
shares  of common stock to certain  employees, directors, and other individuals.
All options are currently  exercisable. A summary  of outstanding stock  options
follows:
 
<TABLE>
<CAPTION>
                                                              NUMBER OF      EXERCISE      EXPIRATION
                                                                SHARES         PRICE          DATE
                                                             ------------  -------------  -------------
<S>                                                          <C>           <C>            <C>
Balance, August 1, 1994 (date of inception)
  Options granted..........................................      300,000   $ 0.83 - 1.04      2004
                                                             ------------  -------------
Balance, December 31, 1994.................................      300,000     0.83 - 1.04
  Options granted..........................................      210,000     1.04 - 1.67   2000 - 2005
  Options exercised........................................         (120)      1.04
                                                             ------------  -------------
Balance, December 31, 1995.................................      509,880     0.83 - 1.67   2000 - 2005
  Options granted..........................................       90,000     1.67 - 3.33      2006
                                                             ------------  -------------
Balance, May 31, 1996......................................      599,880   $ 0.83 - 3.33   2000 - 2006
                                                             ------------  -------------
                                                             ------------  -------------
</TABLE>
 
    The 1994 and 1995 options were granted at prices which approximated the fair
value  on  the dates  of  grant and,  accordingly,  no compensation  expense was
recorded. In  1996, compensation  expense of  $160,000 was  recorded related  to
option grants.
 
NOTE 5.  INCOME TAXES
    The  components of  deferred taxes  at December  31, 1994  and 1995,  are as
follows:
 
<TABLE>
<CAPTION>
                                                                                   1994         1995
                                                                                -----------  -----------
<S>                                                                             <C>          <C>
Net operating loss carryforwards..............................................  $    40,000  $   220,000
Tax credits...................................................................      --            11,000
Amortization of Brennen asset purchase (1)....................................       92,000       85,000
Valuation allowance...........................................................     (132,000)    (316,000)
                                                                                -----------  -----------
                                                                                $   --       $   --
                                                                                -----------  -----------
                                                                                -----------  -----------
</TABLE>
 
- ------------------------
 
(1) As discussed in  Note 2, the  excess purchase price  related to the  Brennen
    asset  purchase  was  recorded  as a  distribution  for  financial reporting
    purposes. For tax  purposes, the  amount is  amortized over  a fifteen  year
    period.   Accordingly,  at  inception,  the  Company  recorded  a  valuation
    allowance of $95,000 on this deferred tax asset.
 
    At December 31, 1995, the Company recorded a valuation allowance of $316,000
on the deferred  tax assets to  reduce the  total to an  amount that  management
believes  will ultimately  be realized.  Realization of  deferred tax  assets is
dependent  upon  sufficient  future  taxable  income  during  the  period   that
deductible  temporary differences and carryforwards are expected to be available
to reduce taxable income.
 
    The Company's income tax benefit differed from the statutory federal rate as
follows:
 
<TABLE>
<CAPTION>
                                                                                    1994        1995
                                                                                 ----------  -----------
<S>                                                                              <C>         <C>
Statutory rate applied to loss before tax......................................  $  (37,000) $  (184,000)
Change in valuation allowance..................................................      37,000      184,000
                                                                                 ----------  -----------
                                                                                 $   --      $   --
                                                                                 ----------  -----------
                                                                                 ----------  -----------
</TABLE>
 
                                      F-11
<PAGE>
                           ADVANCED UROSCIENCE, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 5.  INCOME TAXES (CONTINUED)
    At December 31, 1995, the Company had net operating losses of  approximately
$628,000 expiring as follows:
 
<TABLE>
<CAPTION>
EXPIRATION DATE                                                             AMOUNT
- ------------------------------------------------------------------------  ----------
<S>                                                                       <C>
2009....................................................................  $  116,000
2010....................................................................     512,000
</TABLE>
 
    These  net operating  losses may  be subject  to certain  annual limitations
resulting from future stock offerings.
 
NOTE 6.  SUBSEQUENT EVENTS (UNAUDITED)
 
    STOCK SPLIT:  In May, 1996, the Company effected a six for five common stock
split. The effect of this common stock split has been retroactively reflected in
these financial statements and notes for all periods presented.
 
    PRIVATE PLACEMENTS:  Subsequent to December 31, 1995, the Company  completed
its  1995 private  placement by selling  an additional 235,500  shares of common
stock, resulting in proceeds of approximately $392,500. In connection with these
sales of common  stock, an  additional 235,500 of  warrants were  granted at  an
exercise price of $1.67 per share.
 
    In  May, 1996, the  Company completed a  private placement with  the sale of
307,500 shares of common stock at $3.33 per share for proceeds of $1,025,000.
 
   
    PUBLIC OFFERING:  On  May 23, 1996,  the Company signed  a letter of  intent
with  an investment banker to undertake a public offering of 1,500,000 shares of
common stock at a price based on market conditions at the time of effectiveness.
The letter of  intent includes  an overallotment  option to  sell an  additional
225,000  shares and provides that the Company will issue the investment banker a
warrant for  the  purchase of  150,000  shares. The  Company  plans to  use  the
proceeds  to  conduct clinical  trials, for  sales  and marketing,  research and
development, and general corporate purposes.
    
 
   
    STOCK OPTIONS:  On June  25, 1996, the Board  of Directors adopted, and  the
shareholders  subsequently approved, the 1996 Stock Option Plan. The Company has
reserved 500,000  shares of  its  common stock  for  issuance upon  exercise  of
options under the plan.
    
 
   
    COMPENSATION  PLANS:  Effective  May 1, 1996,  the Compensation Committee of
the Board  established  a management  by  objective compensation  plan  for  the
Chairman  of the Board and  the Chief Executive Officer.  Pursuant to this plan,
these officers each  receive an annual  salary of $135,000  and are eligible  to
receive  a bonus based  upon the accomplishment  of certain business objectives.
The Company does not have any employment agreements with its executive officers.
    
 
   
    CAPITAL STOCK:  Subsequent to year end, the Company amended its Articles  of
Incorporation  to provide for  22,000,000 shares which shall  have no par value.
The resolution further provided the shares shall consist of 20,000,000 shares of
common stock, 2,000,000 undesignated shares, and canceled the Class A preferred.
    
 
                                      F-12
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
    NO  DEALER,  SALESPERSON OR  ANY OTHER  PERSON HAS  BEEN AUTHORIZED  TO GIVE
INFORMATION OR  MAKE ANY  REPRESENTATION  NOT CONTAINED  IN THIS  PROSPECTUS  IN
CONNECTION  WITH THE OFFER MADE  BY THIS PROSPECTUS, AND  IF GIVEN OR MADE, SUCH
INFORMATION OR REPRESENTATION MUST NOT BE RELIED UPON AS HAVING BEEN  AUTHORIZED
BY THE COMPANY OR THE UNDERWRITERS. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER
TO  SELL, OR A SOLICITATION BY ANYONE IN ANY JURISDICTION IN WHICH SUCH OFFER OR
SOLICITATION IS  NOT AUTHORIZED  OR IN  WHICH THE  PERSON MAKING  SUCH OFFER  OR
SOLICITATION  IS NOT QUALIFIED TO DO  SO OR TO ANYONE TO  WHOM IT IS UNLAWFUL TO
MAKE SUCH OFFER OR SOLICITATION. NEITHER THE DELIVERY OF THIS PROSPECTUS NOR ANY
SALE MADE HEREUNDER SHALL  UNDER ANY CIRCUMSTANCES  CREATE ANY IMPLICATION  THAT
THE  AFFAIRS OF THE COMPANY SINCE THAT  DATE HEREOF OR THE INFORMATION HEREIN IS
CORRECT AS OF ANY TIME SUBSEQUENT TO THE DATE OF THIS PROSPECTUS.
 
                            ------------------------
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                                    PAGE
                                                    -----
<S>                                              <C>
Prospectus Summary.............................           3
Risk Factors...................................           5
Use of Proceeds................................          10
Dividend Policy................................          10
Capitalization.................................          10
Dilution.......................................          11
Selected Financial Data........................          12
Management's Discussion and Analysis of
 Financial Condition and Results of
 Operations....................................          13
Business.......................................          15
Management.....................................          24
Certain Transactions...........................          27
Principal Shareholders.........................          29
Description of Securities......................          30
Shares Eligible for Future Sale................          32
Underwriting...................................          33
Legal Matter...................................          34
Experts........................................          34
Available Information..........................          34
Index to Financial Statements..................         F-1
</TABLE>
    
 
                            ------------------------
 
    UNTIL             , 1996  (25 DAYS AFTER THE  DATE OF THIS PROSPECTUS),  ALL
DEALERS  EFFECTING  TRANSACTIONS IN  THE REGISTERED  SECURITIES, WHETHER  OR NOT
PARTICIPATING IN THIS  DISTRIBUTION, MAY  BE REQUIRED TO  DELIVER A  PROSPECTUS.
THIS  IS IN ADDITION TO THE OBLIGATIONS  OF DEALERS TO DELIVER A PROSPECTUS WHEN
ACTING  AS  UNDERWRITERS  AND  WITH  RESPECT  TO  THEIR  UNSOLD  ALLOTMENTS   OR
SUBSCRIPTIONS.
 
                                1,500,000 SHARES
 
                                     [LOGO]
 
                                  COMMON STOCK
 
                             ---------------------
 
                                   PROSPECTUS
 
                             ---------------------
 
                          JOHN G. KINNARD AND COMPANY,
                                  INCORPORATED
 
                        PENNSYLVANIA MERCHANT GROUP LTD
 
                                          , 1996
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
                                    PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 24.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
    Section 302A.521, subd. 2, of the Minnesota Statutes requires the Company to
indemnify  a person  made or threatened  to be made  a party to  a proceeding by
reason of the former or present official capacity of the person with respect  to
the Company, against judgments, penalties, fines, including, without limitation,
excise  taxes assessed  against the person  with respect to  an employee benefit
plan, settlements,  and  reasonable  expenses,  including  attorneys'  fees  and
disbursements,  incurred by  the person in  connection with  the proceeding with
respect to  the  same  acts  or  omissions if  such  person  (1)  has  not  been
indemnified  by  another  organization or  employee  benefit plan  for  the same
judgments, penalties or fines; (2) acted in good faith; (3) received no improper
personal benefit, and statutory procedure has  been followed in the case of  any
conflict  of interest by a  director; (4) in the  case of a criminal proceeding,
had no reasonable cause to believe the conduct was unlawful; and (5) in the case
of acts  or omissions  occurring in  the person's  performance in  the  official
capacity  of director or, for a person  not a director, in the official capacity
of officer, board  committee member  or employee, reasonably  believed that  the
conduct was in the best interests of the Company, or, in the case of performance
by  a  director, officer  or  employee of  the  Company involving  service  as a
director, officer, partner, trustee, employee  or agent of another  organization
or  employee benefit plan, reasonably believed  that the conduct was not opposed
to the best interests  of the Company. In  addition, Section 302A.521, subd.  3,
requires payment by the Company, upon written request, of reasonable expenses in
advance  of final disposition of the proceeding in certain instances. A decision
as to required indemnification is made by a disinterested majority of the  Board
of Directors present at a meeting at which a disinterested quorum is present, or
by  a  designated committee  of  the Board,  by  special legal  counsel,  by the
shareholders, or by a court.
 
    Provisions regarding  indemnification  of  officers  and  directors  of  the
Company  are contained in Bylaw 37 of  the Company's Bylaws (Exhibit 3.2 to this
Registration Statement).
 
    The Company maintains a director and officer liability policy.
 
    Under Section 6 of the Underwriting Agreement, filed as Exhibit 1.1  hereto,
the  Underwriters agree to indemnify, under certain conditions, the Company, its
directors, certain of its  officers and persons who  control the Company  within
the  meaning  of  the  Securities  Act  of  1933,  as  amended,  against certain
liabilities.
 
ITEM 25.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.
 
    The following expenses will  be paid by the  Company in connection with  the
distribution  of  the  securities  registered  hereby  and  do  not  include the
underwriting discount to  be paid  to the  Underwriters. All  of such  expenses,
except  for  the SEC  registration fee,  NASD  fee and  Nasdaq listing  fee, are
estimated.
 
<TABLE>
<S>                                                                 <C>
SEC Registration Fee..............................................  $   5,949
NASD Fee..........................................................      2,225
Nasdaq National Market Listing Fee................................     29,000
Legal Fees........................................................     75,000
Representatives' Accountable Expenses.............................     50,000
Accountants' Fees and Expenses....................................     40,000
Printing Expenses.................................................     40,000
Blue Sky Fees and Expenses........................................      5,000
Miscellaneous.....................................................     12,826
                                                                    ---------
  Total...........................................................  $ 260,000
                                                                    ---------
                                                                    ---------
</TABLE>
 
ITEM 26.  RECENT SALES OF UNREGISTERED SECURITIES.
 
    During the past three years, the  Registrant has sold the securities  listed
below  pursuant to  exemptions from registration  under the  Securities Act. The
information below is presented on a post-stock split basis.
 
                                      II-1
<PAGE>
   
    1.  In August 1994,  an aggregate of 2,160,000  shares of Common Stock  were
issued  at an aggregate purchase  price of $100 as  follows: 1,512,000 shares to
Timothy Lawin, 540,000 shares to Bruce Lawin and 108,000 shares to Mr. Klein.
    
 
    2.  From December 1994 through February 1995, an aggregate of 675,600 shares
of Common Stock were issued at $0.83 per share pursuant to a private  placement.
Of  the  675,600  shares sold  in  the  private placement,  120,000  shares were
purchased by each of Bruce Lawin, Mr. Colombo and Ms. Lawin, 60,600 shares  were
purchased by Mr. Klein.
 
    3.  In December 1995, 120 shares of Common Stock were purchased at $1.04 per
share  by  a consultant  to the  Company in  connection with  an exercise  of an
option.
 
    4.  In November 1995, units consisting of 240,000 shares of Common Stock and
warrants to purchase  240,000 shares  of Common Stock  at an  exercise price  of
$1.67,  were sold at  $1.67 per share  in a private  placement to James Knoblach
(60,000 units) and Mark Knoblach (180,000 units).
 
    5.  From December  1995 through February 1996,  units consisting of  330,000
shares  of Common Stock and warrants to  purchase 330,000 shares of Common Stock
at an exercise  price of  $1.67 per  share were  sold at  $1.67 per  share in  a
private  placement. Of  the total 330,000  units sold in  the private placement,
30,000 were purchased  by Bruce Lawin,  7,500 were purchased  by Timothy  Lawin,
7,500  were purchased by Mr. Klein, 30,000  were purchased by Mr. Colombo, 7,500
were purchased by Mr. Nosbush and 36,000 were purchased by Brennen Medical, Inc.
 
    6.  In April  1996 and May  1996, an aggregate of  307,500 shares of  Common
Stock  were issued at  $3.33 per share  pursuant to a  private placement. Of the
307,500 shares sold in  the private placement, 30,000  shares were purchased  by
Mark  Knoblach, 15,000 were purchased by  James Knoblach and 150,000 shares were
purchased by Adams,  Harkness & Hill  Partners Fund  of which Harry  Wells is  a
director.
 
    The  sales of securities above  were made in reliance  upon Section 4(2) and
Regulation D of the  Securities Act, which  provide exemptions for  transactions
not  involving a public  offering. The purchasers  of securities described above
acquired them for  their own account  and not  with a view  to any  distribution
thereof  to the public. The certificates  evidencing the securities bear legends
stating that the shares are  not to be offered,  sold or transferred other  than
pursuant  to an effective registration statement under the Securities Act, or an
exemption from such  registration requirements. No  underwriting commissions  or
discounts  were  paid  with  respect to  the  sales  of  unregistered securities
described above.
 
ITEM 27.  EXHIBITS.
 
   
<TABLE>
<CAPTION>
  EXHIBIT
  NUMBER                                                   DESCRIPTION
- -----------  --------------------------------------------------------------------------------------------------------
<C>          <S>
       1.1   Form of Underwriting Agreement, including form of Representatives' Warrants
       3.1   Articles of Incorporation, as amended
       3.2   Amended and Restated Bylaws
       4.1   Form of Stock Certificate
       4.2   Articles of Incorporation, as amended (filed as Exhibit 3.1)
       4.3   Amended and Restated Bylaws (filed as Exhibit 3.2)
       4.4   Form of Representatives' Warrants (filed as part of Exhibit 1.1)
       5.1   Opinion and Consent of Fredrikson & Byron, P.A.
      10.1   1996 Stock Option Plan
      10.2   Form of Stock Option Agreement
      10.3   Form of Stock Purchase Warrant
      10.4   Agreement for Purchase and Sale from Brennen Medical, Inc. of Urology Business and Assets dated August
              1, 1994
</TABLE>
    
 
                                      II-2
<PAGE>
<TABLE>
<CAPTION>
  EXHIBIT
  NUMBER                                                   DESCRIPTION
- -----------  --------------------------------------------------------------------------------------------------------
<C>          <S>
      10.5   Employment Agreement with Dean A. Klein dated August 1, 1994, including consent to termination of
              employment agreement
      10.6   Lease Agreement by and between Lawin Enterprises, Inc. and the Registrant dated May 1, 1996
      10.7   Business Relationship Agreement (to be filed by amendment)
      11     Statement re computation of per share earnings
      23.1   Consent of Fredrikson & Byron, P.A. (included in Exhibit 5.1)
      23.2   Consent of McGladrey & Pullen, LLP independent public accountants
      24     Power of Attorney (included on signature page of the Registration Statement)
      27     Financial Data Schedule
</TABLE>
 
ITEM 28.  UNDERTAKINGS.
 
    Insofar as indemnification for liabilities arising under the Securities  Act
of  1933 may be permitted to directors,  officers and controlling persons of the
Registrant pursuant to  the foregoing provisions,  or otherwise, the  Registrant
has  been advised that in the opinion  of the Securities and Exchange Commission
such indemnification is against public policy as expressed in the Securities Act
of 1933  and  is,  therefore, unenforceable.  In  the  event that  a  claim  for
indemnification  against  such  liabilities  (other  than  the  payment  by  the
Registrant of expenses incurred  or paid by a  director, officer or  controlling
person  of  the Registrant  in the  successful  defense of  any action,  suit or
proceeding) is  asserted by  such  director, officer  or controlling  person  in
connection  with the securities being registered, the Registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit to  a  court  of  appropriate  jurisdiction  the  question  whether  such
indemnification  by it is  against public policy as  expressed in the Securities
Act of 1933 and will be governed by the final adjudication of such issue.
 
    The undersigned Registrant further undertakes that:
 
        (1) For purposes of determining  any liability under the Securities  Act
    of  1933, the information omitted from the  form of prospectus filed as part
    of this registration statement in reliance upon Rule 430A and contained in a
    form of prospectus filed by the registrant pursuant to Rule 424(b)(1) or (4)
    or 497(h)  under the  Securities Act  shall be  deemed to  be part  of  this
    registration statement as of the time it was declared effective.
 
        (2)  For the purpose  of determining any  liability under the Securities
    Act  of  1933,  each  post-effective  amendment  that  contains  a  form  of
    prospectus  shall be deemed  to be a new  registration statement relating to
    the securities offered therein, and the offering of such securities at  that
    time shall be deemed to be the initial bona fide offering thereof.
 
        (3)  It will provide to the underwriters at the closing specified in the
    underwriting agreement certificates in such denominations and registered  in
    such names as required by the underwriters to permit prompt delivery to each
    purchaser.
 
                                      II-3
<PAGE>
                                   SIGNATURES
 
   
    Pursuant  to the requirements of the  Securities Act of 1933, the Registrant
certifies that it has  reasonable grounds to  believe that it  meets all of  the
requirements  for  filing on  Form SB-2  and has  duly caused  this registration
statement to  be  signed  on  its behalf  by  the  undersigned,  thereunto  duly
authorized, in the City of Minneapolis, State of Minnesota, on August 6, 1996.
    
 
                                          ADVANCED UROSCIENCE, INC.
 
                                          By          /s/ DEAN A. KLEIN
 
                                            ------------------------------------
   
                                                       Dean A. Klein,
                                               PRESIDENT AND CHIEF EXECUTIVE
                                                           OFFICER
    
 
   
            SIGNATURES                         TITLE
- -----------------------------------  -------------------------
 
                                     Chairman of the Board,
                 *                    Chief Financial Officer
- -----------------------------------   (principal financial and
         Timothy P. Lawin             accounting officer)
 
         /s/ DEAN A. KLEIN
- -----------------------------------  President and Chief
           Dean A. Klein              Executive Officer
 
                 *
- -----------------------------------  Director
          Bruce A. Lawin
 
                 *
- -----------------------------------  Director
          Mark G. Nosbush
 
                 *
- -----------------------------------  Director
          Paul E. Colombo
 
                 *
- -----------------------------------  Director
         James M. Knoblach
 
                 *
- -----------------------------------  Director
        Harry E. Wells, III
 
     *By           /s/ DEAN A.
               KLEIN
- -----------------------------------
           Dean A. Klein
         ATTORNEY-IN-FACT
          August 6, 1996
 
    
 
                                      II-4
<PAGE>
                       SECURITIES AND EXCHANGE COMMISSION
                           ADVANCED UROSCIENCE, INC.
                           EXHIBIT INDEX TO FORM SB-2
 
   
<TABLE>
<CAPTION>
  EXHIBIT
  NUMBER                                               DESCRIPTION
- -----------  ------------------------------------------------------------------------------------------------
<C>          <S>                                                                                               <C>
       1.1   Form of Underwriting Agreement, including form of Representatives' Warrants
       3.1   Articles of Incorporation, as amended*
       3.2   Amended and Restated Bylaws*
       4.1   Form of Stock Certificate
       4.2   Articles of Incorporation, as amended (filed as Exhibit 3.1)
       4.3   Amended and Restated Bylaws (filed as Exhibit 3.2)
       4.4   Form of Representatives' Warrants (filed as part of Exhibit 1.1)
       5.1   Opinion and Consent of Fredrikson & Byron, P.A.
      10.1   1996 Stock Option Plan
      10.2   Form of Stock Option Agreement*
      10.3   Form of Stock Purchase Warrant*
      10.4   Agreement for Purchase and Sale from Brennen Medical, Inc. of Urology Business and Assets dated
              August 1, 1994*
      10.5   Employment Agreement with Dean A. Klein dated August 1, 1994, including consent to termination
              of employment agreement*
      10.6   Lease Agreement by and between Lawin Enterprises, Inc. and the Registrant dated May 1, 1996*
      10.7   Business Relationship Agreement (to be filed by amendment)
      11     Statement re computation of per share earnings
      23.1   Consent of Fredrikson & Byron, P.A. (included in Exhibit 5.1)
      23.2   Consent of McGladrey & Pullen, LLP, independent public accountants
      24     Power of Attorney (included on signature page of the Registration Statement)
      27     Financial Data Schedule*
</TABLE>
    
 
- ------------------------
   
*Previously filed.
    

<PAGE>


                                                                Draft 8/5/96

                                   1,500,000 SHARES

                              ADVANCED UROSCIENCE, INC.

                                     COMMON STOCK

                                UNDERWRITING AGREEMENT



___________________, 1996



JOHN G. KINNARD AND COMPANY, INCORPORATED
PENNSYLVANIA MERCHANT GROUP LTD
As Representatives of the Several Underwriters
c/o John G. Kinnard and Company, Incorporated 
920 Second Avenue South 
Minneapolis, Minnesota  55402


Ladies and Gentlemen:

         Advanced UroScience, Inc., a Minnesota corporation (the "Company")
proposes to sell to the several underwriters named in Schedule I hereto (the
"Underwriters"), for whom you are acting as representatives (the
"Representatives"), an aggregate of One Million Five Hundred Thousand
(1,500,000) shares (the "Firm Shares") of Common Stock, no par value, of the
Company (the "Common Stock").  In addition, to cover overallotments in
connection with the sale of the Firm Shares, the Company proposes to grant to
the Underwriters an option to purchase an additional number of shares not
exceeding 225,000 in the aggregate.  The shares subject to the option are herein
called the "Option Shares."  The Firm Shares and any Option Shares purchased
pursuant to this Underwriting Agreement are herein called the "Shares." As used
in this Agreement, the term "Underwriter" includes any party substituted for an
Underwriter under Section 11 hereof.

         As Representatives, you have advised the Company (i) that you are
authorized to enter into this Underwriting Agreement on behalf of the
Underwriters and (ii) that the Underwriters are willing, acting severally and
not jointly, to purchase the numbers of the Firm Shares, aggregating in total
1,500,000 shares, set forth opposite their respective names in Schedule I, plus
their pro rata portion of the Option Shares purchased if you elect to exercise
the overallotment option in whole or in part for the accounts of the
Underwriters.  

<PAGE>

         The Company hereby confirms its agreement to issue to the
Representatives a warrant for the purchase of 150,000 shares of the Company's
Common Stock as described in Section 5 hereof (the "Representatives' Warrant"),
contingent upon the purchase by the Underwriters of the Firm Shares.  The shares
issuable upon exercise of the Representatives' Warrant are referred to in this
Underwriting Agreement as the "Warrant Shares."

         The Company has filed with the Securities and Exchange Commission (the
"Commission") a registration statement on Form SB-2 (File No. 333-07285)  and a
related preliminary prospectus for the registration of the Shares under the
Securities Act of 1933, as amended (the "Act").  If the Company has elected to
rely upon Rule 462(b) under the Act to increase the size of the offering
registered under the Act, the Company will prepare and file with the Commission
a registration statement with respect to such increase pursuant to Rule 462(b).
The registration statement, as amended, including a registration statement (if
any) filed pursuant to Rule 462(b) under the Act and the information (if any)
deemed to be part thereof pursuant to Rules 430A and 434(d) under the Act, is
herein called the "Registration Statement."  The prospectus included in the
Registration Statement at the time it is or was declared effective by the
Commission is hereinafter called the "Prospectus," except that if any prospectus
(including any term sheet meeting the requirements of Rule 434 under the Act
provided by the Company for use with a prospectus subject to completion within
the meaning of Rule 434 in order to meet the requirements of Section 10(a) of
the Act) filed by the Company with the Commission pursuant to Rule 424(b) (and
Rule 434, if applicable) under the Act or any other such prospectus provided to
the Underwriters by the Company for use in connection with the offering of the
Shares (whether or not required to be filed by the Company with the Commission
pursuant to Rule 424(b) under the Act) differs from the prospectus on file at
the time the Registration Statement is or was declared effective by the
Commission, the term "Prospectus" shall refer to such differing prospectus
(including any term sheet within the meaning of Rule 434 under the Act) from and
after the time such prospectus is filed with the Commission or transmitted to
the Commission for filing pursuant to Rule 424(b) (and Rule 434, if applicable)
or from and after the time it is first provided to the Underwriters by the
Company for such use.  The term "Preliminary Prospectus" as used herein means
any preliminary prospectus included in the Registration Statement prior to the
time it becomes or became effective under the Act and any prospectus subject to
completion as described in Rule 430A or 434 under the Act. Copies of the
Registration Statement, including all exhibits and schedules thereto, any
amendments thereto and all Preliminary Prospectuses have been delivered to you.

         1.   REPRESENTATIONS AND WARRANTIES OF THE COMPANY.

         (a)  The Company represents and warrants to, and agrees with, each of
    the Underwriters that:


                                         -2-

<PAGE>

              [(i)  The Registration Statement has been declared effective
         under the Act, and no post-effective amendment to the Registration
         Statement has been filed as of the date of this Agreement.  No stop
         order suspending the effectiveness of the Registration Statement has
         been issued and no proceeding for that purpose has been instituted or
         threatened by the Commission.]

              (ii)  No order preventing or suspending the use of any
         Preliminary Prospectus has been issued by the Commission, and each
         Preliminary Prospectus, at the time of filing thereof, conformed in
         all material respects to the requirements of the Act and the rules and
         regulations of the Commission promulgated thereunder, and did not
         contain an untrue statement of a material fact or omit to state a
         material fact required to be stated therein or necessary to make the
         statements therein, in light of the circumstances under which they
         were made, not misleading; provided, however, the Company makes no
         representation or warranty as to information contained in or omitted
         in reliance upon, and in conformity with, written information
         furnished to the Company by or on behalf of any Underwriter through
         the Representatives, expressly for use in the preparation thereof.

              (iii) As of the time the Registration Statement was declared
         effective by the Commission, upon the filing or first delivery to the
         Underwriters of the Prospectus and at the First Closing Date and
         Second Closing Date (each as hereinafter defined), (A) the
         Registration Statement and Prospectus conformed or will conform in all
         material respects to the requirements of the Act and the rules and
         regulations of the Commission promulgated thereunder, (B) the
         Registration Statement did not or will not include an untrue statement
         of a material fact or omit to state a material fact required to be
         stated therein or necessary to make the statements therein not
         misleading, and (C) the Prospectus did not or will not include an
         untrue statement of a material fact or omit to state a material fact
         required to be stated therein or necessary to make the statements
         therein, in light of the circumstances in which they are or were made,
         not misleading; provided, however, that the Company makes no
         representation or warranty as to information contained in or omitted
         from the Registration Statement or the Prospectus, or any such
         amendment or supplement, in reliance upon, and in conformity with,
         written information furnished to the Company by or on behalf of any
         Underwriter through the Representatives, expressly for use in the
         preparation thereof.

              (iv)  The Company has been duly incorporated and is validly
         existing as a corporation in good standing under the laws of the State
         of Minnesota.  The Company owns no capital stock or other equity or


                                         -3-

<PAGE>

         ownership or proprietary interest in any corporation, partnership,
         association, trust or other entity.  The Company has the power and
         authority to own or lease its properties and conduct its business as
         described in the Prospectus, and is duly qualified to transact
         business in all jurisdictions in which the conduct of its business or
         its ownership or leasing of property requires such qualification and
         the failure so to qualify would have a material adverse effect on the
         condition (financial or otherwise), business, property, prospects, net
         worth or results of operations of the Company. 

              (v)  The outstanding shares of capital stock of the Company have
         been duly authorized and validly issued and are fully paid and
         nonassessable.  The Shares to be issued and sold by the Company to the
         Underwriters pursuant to this Agreement have been duly authorized and,
         when issued and paid for as contemplated herein, will be validly
         issued, fully paid and nonassessable.  The Warrant Shares have been
         duly authorized and reserved for issuance and, when issued and paid
         for pursuant to the terms of the Representatives' Warrant, will be
         validly issued, fully paid and nonassessable.  Except as described in
         the Prospectus, there are no preemptive rights or other rights to
         subscribe for or to purchase, or any restriction upon the voting or
         transfer of, any shares of capital stock of the Company pursuant to
         the Company's Amended Articles of Incorporation, Bylaws or any
         agreement or other instrument to which the Company is a party or by
         which the Company is bound.  Neither the filing of the Registration
         Statement nor the offering or the sale of the Shares as contemplated
         by this Agreement gives rise to any rights for, or relating to, the
         registration of any shares of capital stock or other securities of the
         Company, except such rights which have been validly waived or
         satisfied.  Except as described in the Prospectus, there are no
         outstanding options, warrants, agreements, contracts or other rights
         to purchase or acquire from the Company any shares of its capital
         stock.  The Company has an authorized and outstanding capitalization
         as set forth under the heading "Capitalization" in the Prospectus. 
         The outstanding capital stock of the Company conforms, and the Shares
         to be issued by the Company to the Underwriters will conform, to the
         description thereof contained in the Prospectus.

              (vi)  The financial statements (together with the notes thereto)
         included in the Registration Statement and Prospectus comply in all
         material respects with the requirements of the Act and present fairly
         the financial position, results of operations and changes in
         stockholders' equity and cash flows of the Company on the basis stated
         in the Registration Statement, at the indicated dates and for the
         indicated periods.  Such financial statements have been prepared in
         accordance with generally accepted accounting principles consistently


                                         -4-

<PAGE>


         applied throughout the periods involved, and all adjustments necessary
         for a fair presentation of results for such periods have been made,
         except as otherwise stated therein; and the supporting schedules
         included in the Registration Statement present fairly the information
         required to be stated therein. No other financial statements or
         schedules are required to be included in the Registration Statement. 
         The summary and selected consolidated financial data included in the
         Registration Statement present fairly the information shown therein on
         the basis stated in the Registration Statement and have been compiled
         on a basis consistent with the financial statements presented therein. 
         McGladrey & Pullen LLP, which has expressed its opinion with respect
         to the financial statements filed with the Commission as part of the
         Registration Statement, are independent public accountants as required
         by the Act and the rules and regulations of the Commission promulgated
         thereunder.

              (vii)  There is no action or proceeding pending or, to the
         knowledge of the Company, threatened or contemplated against the
         Company before any court or administrative or regulatory agency,
         authority or body, or any arbitrator, which might result, individually
         or in the aggregate, in a material adverse change in the condition
         (financial or otherwise), business, property, prospects, net worth or
         results of operations of the Company, except as set forth in the
         Registration Statement and the Prospectus.  

              (viii)  The Company has good and marketable title to all
         properties and assets reflected as owned in the financial statements
         hereinabove described or in the Prospectus, in each case free and
         clear of all liens, encumbrances, claims, security interests or
         defects, except such as are described in the Prospectus or do not
         substantially affect the value of such properties and assets and do
         not materially interfere with the use made and proposed to be made of
         such properties and assets by the Company; and any real property and
         buildings held under lease by the Company are held under valid,
         subsisting and enforceable leases with only such exceptions with
         respect to any particular lease as are not material and do not
         interfere in any material respect with the use made and proposed to be
         made of such property and buildings by the Company.

              (ix)  Since the respective dates as of which information is given
         in the Registration Statement and the Prospectus, (A) there has not
         been any material adverse change in or affecting, or any event,
         occurrence or development in the business of the Company that, taken
         together with other events, occurrences and developments with respect
         to such business, would have or would reasonably be expected to have a
         material adverse effect on, the general affairs, condition (financial 


                                         -5-

<PAGE>

         or otherwise), business, key personnel, property, prospects, net worth
         or results of operations of the Company (whether or not occurring in
         the ordinary course of business),  (B) the Company has not entered
         into any transaction not in the ordinary course of business which is
         material to the Company, other than transactions described or
         contemplated in the Registration Statement and the Prospectus, (C) the
         Company has not incurred any material liabilities or obligations,
         direct or contingent, (D) the Company has not sustained any material
         loss or interference with its business or properties from fire, flood,
         windstorm, accident or other calamity, whether or not covered by
         insurance, (E) there has not been any change in the capital stock of
         the Company (other than upon the exercise of options and warrants
         described in the Registration Statement and the Prospectus), or any
         material increase in the short-term or long-term debt (including
         capitalized lease obligations) of the Company, and (F) there has not
         been any issuance of warrants, options, convertible securities or
         other rights to purchase or acquire any capital stock of the Company.

              (x)  The Company is not in violation of or in default under its
         Amended Articles of Incorporation or Bylaws, or any statute, rule,
         regulation, order, judgment, decree or authorization of any
         governmental or administrative agency, court or other body having
         jurisdiction over the Company or any of its properties, or any
         indenture, mortgage, deed of trust, loan agreement, lease, franchise,
         license or other agreement or instrument to which the Company is a
         party or by which it is bound or to which any property or assets of
         the Company are subject, which violation or default would have a
         material adverse effect on the business, condition (financial or
         otherwise), results of operations, stockholders' equity or prospects
         of the Company or the ability of the Company to consummate the
         transactions contemplated hereby.

              (xi)  The Company has the power and authority to enter into this
         Agreement and to consummate the transactions contemplated hereby. 
         This Agreement has been duly authorized, executed and delivered by the
         Company, and constitutes a valid, legal and binding obligation of the
         Company, enforceable in accordance with its terms, except as rights to
         indemnity hereunder may be limited by federal or state securities laws
         and except as such enforceability may be limited by bankruptcy,
         insolvency, reorganization or similar laws affecting the rights of
         creditors generally and subject to general principles of equity.  The
         execution, delivery and performance of this Agreement and the
         consummation of the transactions herein contemplated will not result
         in a breach or violation of any provision of the Amended Articles of
         Incorporation or Bylaws of the Company or any statute, rule,
         regulation, order, judgment, decree or authorization of any


                                         -6-

<PAGE>

         governmental or administrative agency, court or other body having
         jurisdiction over the Company or any of its properties, and will not
         conflict with, result in a breach or violation of, or constitute,
         either by itself or upon notice or passage of time or both, a default
         under any indenture, mortgage, deed of trust, loan agreement, lease,
         franchise, license or other agreement or instrument to which the
         Company is a party or by which the Company is bound or to which any
         property or assets of the Company are subject.  No approval, consent,
         order, authorization, designation, declaration or filing by or with
         any governmental or administrative agency, court or other body is
         required for the execution and delivery by the Company of this
         Agreement and the consummation of the transactions herein
         contemplated, except as may be required under the Act or any state
         securities or blue sky laws.

              (xii)  The Company holds and is operating in compliance with all
         licenses, authorizations, approvals, certificates and permits from
         governmental and regulatory authorities, foreign and domestic, which
         are necessary to the conduct of its business as described in the
         Prospectus, except where the failure to comply would not have a
         material adverse effect on the business, condition (financial or
         otherwise), results of operations, stockholders' equity or prospects
         of the Company; and all such licenses, authorizations, approvals,
         certificates and permits are in full force and effect.

              (xiii) No labor disturbance or dispute by the employees
         or consultants or contractors to the Company exists, or to the
         Company's knowledge, is threatened which could reasonably be expected
         to have a material adverse effect on the conduct of the Company's
         business as described in the Prospectus or on the condition (financial
         or otherwise), property, prospects, net worth or results of operations
         of the Company.

              (xiv)  The Company has the power and authority to enter into the
         Representatives' Warrant and to issue and sell the Warrant Shares as
         contemplated thereby.  The Representatives' Warrant and the Warrant
         Shares have been duly authorized.  The Representatives' Warrant, when
         issued and delivered to the Representatives, will constitute a valid
         and binding obligation of the Company, enforceable in accordance with
         its terms, except as such enforceability may be limited by bankruptcy,
         insolvency, reorganization or similar laws affecting the rights of
         creditors generally and subject to general principles of equity.

              (xv)  The Company maintains a system of internal accounting
         controls sufficient to provide reasonable assurances that (A)
         transactions are executed in accordance with management's general or
         specific authorization; (B) transactions are recorded as necessary to


                                         -7-

<PAGE>

         permit preparation of financial statements in conformity with
         generally accepted accounting principles and to maintain
         accountability for assets; (C) access to assets is permitted only in
         accordance with management's general or specific authorization; and
         (D) the recorded accountability for assets is compared with existing
         assets at reasonable intervals and appropriate action is taken with
         respect to any differences.

              (xvi)  The Company has not taken and will not take, directly or
         indirectly, any action designed to, or which has constituted, or which
         might reasonably be expected to cause or result in, stabilization or
         manipulation of the price of the Common Stock.

              (xvii)  The Company's application for listing on the Nasdaq
         National Market ("Nasdaq") has been approved, and, on the date the
         Registration Statement became effective, the Company's Registration
         Statement on Form 8-A or other applicable form under the Securities
         Exchange Act of 1934, as amended (the "Exchange Act"), became
         effective.

              (xviii)  The Company has obtained and delivered to the
         Representatives written agreements, in form and substance satisfactory
         to the Representatives, of each of its directors and executive
         officers and the shareholders named in Schedule II hereto, that no
         offer, sale, contract to sell, other disposition of any Common Stock
         of the Company will be made for a period of 180 days after the
         effective date of the Registration Statement, directly or indirectly,
         by such holder otherwise than with the prior written consent of the
         Representatives. 

              (xix)  The Company has not distributed and will not distribute
         any prospectus or other offering material in connection with the
         offering and sale of the Shares other than any Preliminary Prospectus
         or the Prospectus or other materials permitted by the Act to be
         distributed by the Company.

              (xx)  The Company has filed all federal, state, local and foreign
         tax returns or reports required to be filed by it and has paid in full
         all taxes indicated by said returns or reports and all assessments
         received by it to the extent that such taxes have become due and
         payable, except where the Company is contesting in good faith such
         taxes and assessments.

              (xxi)  The Company maintains insurance of the type and in the
         amounts it believes meets the Company's needs, including without
         limitation, product liability insurance and insurance covering all
         real 


                                         -8-

<PAGE>

         and personal property owned or leased by it, all of which is in full
         force and effect.

              (xxii)  The Company owns or is licensed to use all patents,
         patent applications, inventions, trademarks, tradenames, applications
         for registration of trademarks, copyrights, know-how, trade secrets,
         licenses and rights in any thereof  which are material to the business
         of the Company as now conducted and as proposed to be conducted, in
         each case as described in the Prospectus (the "Proprietary Rights"). 
         The Company does not have knowledge of, and the Company has not given
         or received any notice of any pending conflicts with or infringement
         of, the rights of others with respect to any Proprietary Rights or
         with respect to any license of Proprietary Rights.  No action, suit,
         arbitration or legal, administrative or other proceeding, or domestic
         or foreign governmental investigation is pending, or to the best of
         the Company's knowledge, threatened, which involves any Proprietary
         Rights.  The Company is not subject to any judgment, order, writ,
         injunction or decree of any court or any federal, state, local,
         foreign or other governmental department, commission, board, bureau,
         agency or instrumentality, domestic or foreign, or any arbitrator, or
         has entered into or is a party to any contract which restricts or
         impairs the use of any such Proprietary Rights.  To the best of the
         Company's knowledge, no Proprietary Rights used by the Company
         conflict with or infringe upon any proprietary rights of or available
         to any third party.  The Company has not received written notice of
         any pending conflict with or infringement upon such third-party
         proprietary rights.  The Company has not entered into any consent,
         indemnification, forbearance to sue or settlement agreement with
         respect to Proprietary Rights other than in the ordinary course of
         business.  No claims have been asserted by any person with respect to
         the validity of or the Company's ownership or right to use the
         Proprietary Rights and, to the best knowledge of the Company, there is
         no reasonable basis for any such claim to be successful.  The
         Proprietary Rights are valid and enforceable and no registration
         relating thereto has lapsed, expired or been abandoned or cancelled or
         is the subject of cancellation or other adversarial proceedings, and
         all applications therefor are pending and are in good standing.  The
         Company has complied with its respective contractual obligations
         relating to the protection of the Proprietary Rights used pursuant to
         licenses.  To the best knowledge of the Company, no person is
         infringing on or violating the Proprietary Rights owned or used by the
         Company.

              (xxiii) To the Company's knowledge, none of the Company's
         officers, directors or security holders has any affiliations with the
         National Association of Securities Dealers, Inc., except as set forth
         in 


                                         -9-

<PAGE>

         the Registration Statement or as otherwise disclosed in writing to the
         Representatives.

              (xxiv)  The Company intends to apply the proceeds from the sale
         of the Shares by it to the purposes and substantially in the manner
         set forth in the Prospectus.

              (xxv)  No person is entitled, directly or indirectly, to
         compensation from the Company or the Underwriters for services as a
         finder in connection with the transactions contemplated by this
         Agreement.

              (xxvi)  The conditions for use of a registration statement on
         Form SB-2 for the distribution of the Shares have been satisfied with
         respect to the Company.

              (xxvii)  The Company has not sold any securities in violation of
         Section 5 of the Act.

              (xxviii)    The Company has complied and will comply with all
         provisions of Florida Statutes Section 517.075 (Chapter 92-198, Laws
         of Florida).  Neither the Company, nor any affiliate thereof, does
         business with the government of Cuba or with any person or affiliate
         located in Cuba.

         (b)  Any certificate signed by any officer of the Company and
    delivered to the Representatives or counsel to the Underwriters shall be
    deemed to be a representation and warranty of the Company to each
    Underwriter as to the matters covered thereby.

         2.   PURCHASE AND SALE; DELIVERY AND PAYMENT.

         (a)  On the basis of the representations, warranties, and agreements
    herein contained, but subject to the terms and conditions herein set forth,
    the Company agrees to sell to each of the Underwriters, and the
    Underwriters agrees, severally and not jointly, to purchase, at a purchase
    price equal to ninety-two percent (92%) of the per share price to public of
    $______, the respective amount of Firm Shares set forth opposite such
    Underwriter's name in Schedule I hereto.  The Underwriters will
    collectively purchase all of the Firm Shares if any are purchased.

         (b)  On the basis of the representations and warranties herein
    contained, but subject to the terms and conditions herein set forth, the
    Company hereby grants an option to the Underwriters to purchase an
    aggregate of up to 225,000 Option Shares, at the same purchase price as the
    Firm Shares, for use solely in covering any overallotments made by the


                                         -10-

<PAGE>

    Underwriters in the sale and distribution of the Firm Shares.  The option
    granted hereunder may be exercised at any time (but not more than once)
    within 30 days after the date on which the Registration Statement was
    declared effective under the Act, as described in Section 1(a)(i) hereof
    (the "Effective Date") upon notice (confirmed in writing) by the
    Representatives to the Company setting forth the aggregate number of Option
    Shares as to which the Underwriters are exercising the option and the date
    on which certificates for such Option Shares are to be delivered.  Option
    Shares shall be purchased severally for the account of each Underwriter in
    proportion to the number of Firm Shares set forth opposite the name of such
    Underwriter in Schedule I hereto.

         (c)  The Company will deliver the Firm Shares to the Representatives
    at the offices of Dorsey & Whitney LLP, 220 South Sixth Street,
    Minneapolis, Minnesota  55402, unless some other place is agreed upon, at
    10:00 a.m., Minneapolis time, against payment of the purchase price as set
    forth in Section 2(a), on the third full business day after commencement of
    the offering or, if the offering commences after 4:30 p.m., on the fourth
    full business day after commencement of the offering, or such earlier time
    as may be agreed upon by the Representatives and the Company, such time and
    place being herein referred to as the "First Closing Date."

         (d)  The Company will deliver the Option Shares being purchased by the
    Underwriters to the Representatives at the offices of Dorsey & Whitney LLP
    as set forth in Section 2(c) above, unless some other place is agreed upon,
    at 10:00 a.m., Minneapolis time, against payment of the purchase price at
    the same place, on the date determined by the Representatives and of which
    the Company has received notice as provided in Section 2(b), which shall
    not be earlier than two nor later than three full business days after the
    exercise of the option as set forth in Section 2(b), or at such other time
    not later than ten full business days thereafter as may be agreed upon by
    the Representatives and the Company, such time and date being herein
    referred to as the "Second Closing Date."

         (e)  Certificates for the Shares to be delivered will be registered in
    such names and issued in such denominations as the Underwriters shall
    request at least two business days prior to the First Closing Date or the
    Second Closing Date, as the case may be.  The certificates will be made
    available to the Underwriters in definitive form for the purpose of
    inspection and packaging at least 24 hours prior to each respective closing
    date.

         (f)  Payment to the Company for the Shares sold shall be made by wire
    transfer to the account designated by the Company or by certified or
    official bank check or checks in Clearing House funds, payable to the order
    of the Company.


                                         -11-

<PAGE>

         (g)  The Underwriters will make a public offering of the Shares
    directly to the public (which may include selected dealers who are members
    in good standing of the National Association of Securities Dealers, Inc.
    ("NASD") or foreign dealers not eligible for membership in the NASD but who
    have agreed to abide by the interpretation of the NASD's Board of Governors
    with respect to free-riding and withholding) as soon as the Underwriters
    deem practicable after the Registration Statement becomes effective at the
    public offering price set forth in Section 2(a) above subject to the terms
    and conditions of this Agreement and in accordance with the Prospectus;
    concessions from the public offering price may be allowed selected dealers
    who are members of the NASD as the Underwriters determine and the
    Underwriters will furnish the Company with such information about the
    distribution arrangements as may be necessary for inclusion in the
    Registration Statement.  It is understood that the public offering price
    and concessions may vary after the public offering.  The Underwriters shall
    offer and sell the Shares only in jurisdictions in which the offering of
    Shares has been duly registered or qualified, or is exempt from
    registration or qualification, and shall take reasonable measures to effect
    compliance with applicable state securities laws.

         (h)  It is understood that the Representatives, individually and not
    as Representatives, may (but shall not be obligated to) make payment on
    behalf of any Underwriter or Underwriters for the Shares to be purchased by
    such Underwriter or Underwriters.  No such payment by the Representatives
    shall relieve such Underwriter or Underwriters from any of its or their
    other obligations hereunder.

         (i)  On the First Closing Date, the Company shall issue and deliver to
    you the Representatives' Warrant, against payment by the Representatives of
    $50.00 as set forth in Section 5 of this Agreement.

         3.   COVENANTS OF THE COMPANY.  The Company covenants and agrees with
the several Underwriters that:

         (a)  If the Company has elected to rely on Rule 430A under the Act,
    the Company will prepare and file a Prospectus (or term sheet within the
    meaning of Rule 434 under the Act) containing the information omitted
    therefrom pursuant to Rule 430A under the Act with the Commission within
    the time period required by, and otherwise in accordance with the
    provisions of, Rules 424(b), 430A and 434, if applicable, under the Act; if
    the Company has elected to rely upon Rule 462(b) under the Act to increase
    the size of the offering registered under the Act, the Company will prepare
    and file a registration statement with respect to such increase with the
    Commission within the time period required by, and otherwise in accordance
    with the provisions of, Rule 462(b) under the Act; the Company will prepare
    and file with the Commission, promptly upon the request of the
    Representatives, any 


                                         -12-

<PAGE>

    amendments or supplements to the Registration Statement or Prospectus
    (including any term sheet within the meaning of Rule 434 under the Act)
    that, in the opinion of the Representatives, may be necessary or advisable
    in connection with distribution of the Securities by Underwriters; and the
    Company will not file any amendment or supplement to the Registration
    Statement or Prospectus (including any term sheet within the meaning of
    Rule 434 under the Act) to which the Representatives shall reasonably
    object by notice to the Company after having been furnished with a copy a
    reasonable time prior to the filing. 

         (b)  The Company will advise the Representatives promptly of any
    request of the Commission for amendment of the Registration Statement or
    for supplement to the Prospectus or for any additional information, or of
    the issuance by the Commission of any stop order suspending the
    effectiveness of the Registration Statement or the use of the Prospectus,
    of the suspension of the qualification of the Shares for offering or sale
    in any jurisdiction, or of the institution or threatening of any
    proceedings for that purpose, and the Company will use its best efforts to
    prevent the issuance of any such stop order preventing or suspending the
    use of the Prospectus or suspending such qualification and to obtain as
    soon as possible the lifting thereof, if issued.

         (c)  The Company will endeavor to qualify the Shares for sale under
    the securities laws of such jurisdictions as the Representatives may
    reasonably have designated in writing and will, or will cause counsel for
    the Company to, make such applications, file such documents, and furnish
    such information as may be reasonably requested by the Representatives,
    provided that the Company shall not be required to qualify as a foreign
    corporation or to file a general consent to service of process in any
    jurisdiction where it is not now so qualified or required to file such a
    consent.  The Company will, from time to time, prepare and file such
    statements, reports and other documents as are or may be required to
    continue such qualifications in effect for so long a period as the
    Representatives may reasonably request for distribution of the Shares.

         (d)  The Company will furnish the Underwriters with as many copies of
    any Preliminary Prospectus as the Representatives may reasonably request
    and, during the period when delivery of a prospectus is required under the
    Act, the Company will furnish the Underwriters with as many copies of the
    Prospectus in final form, or as thereafter amended or supplemented, as the
    Representatives may, from time to time, reasonably request.  The Company
    will deliver to the Representatives, at or before the First Closing Date,
    three signed copies of the Registration Statement and all amendments
    thereto including all exhibits filed therewith, and will deliver to the
    Representatives such number of copies of the Registration Statement,
    without exhibits, and of all amendments thereto, as the Representatives may
    reasonably request.


                                         -13-

<PAGE>

         (e)  If, during the period in which a prospectus is required by law to
    be delivered by an Underwriter or dealer, any event shall occur as a result
    of which the Prospectus as then amended or supplemented would include an
    untrue statement of a material fact or omit to state any material fact
    necessary in order to make the statements therein, in light of the
    circumstances existing at the time the Prospectus is delivered to a
    purchaser, not misleading, or if for any other reason it shall be necessary
    at any time to amend or supplement the Prospectus to comply with any law,
    the Company promptly will prepare and file with the Commission an
    appropriate amendment to the Registration Statement or supplement to the
    Prospectus so that the Prospectus as so amended or supplemented will not
    include an untrue statement of a material fact or omit to state any
    material fact necessary in order to make the statements therein in light of
    the circumstances in which they are made, when it is so delivered, not
    misleading, or so that the Prospectus will comply with law.  In case any
    Underwriter is required to deliver a prospectus in connection with sales of
    any Shares at any time nine months or more after the effective date of the
    Registration Statement, upon the request of the Representatives but at the
    expense of such Underwriter, the Company will prepare and deliver to such
    Underwriter as many copies as the Representatives may request of an amended
    or supplemented Prospectus complying with Section 10(a)(3) of the Act.

         (f)  The Company will make generally available to its security
    holders, as soon as it is practicable to do so, but in any event not later
    than 15 months after the effective date of the Registration Statement, an
    earnings statement (which need not be audited) in reasonable detail,
    covering a period of at least 12 consecutive months beginning after the
    effective date of the Registration Statement, which earnings statement
    shall satisfy the requirements of Section 11(a) of the Act and Rule 158
    thereunder and will advise you in writing when such statement has been so
    made available.

         (g)  The Company will, for five years from the First Closing Date,
    deliver to the Representatives copies of its annual report and copies of
    all other documents, reports and information furnished by the Company to
    its security holders or filed with any securities exchange pursuant to the
    requirements of such exchange or with the Commission pursuant to the Act or
    the Exchange Act. 

         (h)  No offering, sale or other disposition of any Common Stock or
    other capital stock of the Company, or warrants, options, convertible
    securities or other rights to acquire such Common Stock or other capital
    stock (other than pursuant to employee stock option plans, outstanding
    options or on the conversion of convertible securities outstanding on the
    date of this Agreement) will be made for a period of 180 days after the
    date of this 


                                         -14-

<PAGE>

    Agreement, directly or indirectly, by the Company otherwise than hereunder
    or with the prior written consent of the Representatives.

         (i)  The Company will apply the net proceeds from the sale of the
    Shares to be sold by it hereunder substantially in accordance with the
    purposes set forth under "Use of Proceeds" in the Prospectus and will file
    such reports with the Commission with respect to the sale of the Shares and
    the application of the proceeds therefrom as may be required in accordance
    with Rule 463 under the Act.

         (j)  The Company will use its best efforts to maintain the designation
    of the Common Stock on the Nasdaq National Market.

         (k)  Subject to the provisions set forth below, the Company shall be
    responsible for and pay all costs and expenses incident to the performance
    of its obligations under this Agreement including, without limiting the
    generality of the foregoing, (i) all costs and expenses in connection with
    the preparation, printing and filing of the Registration Statement
    (including financial statements and exhibits), Preliminary Prospectuses,
    the Prospectus and any amendments thereof or supplements to any of the
    foregoing; (ii) the issuance and delivery of the Shares, including taxes,
    if any; (iii) the cost of all certificates representing the Shares; (iv)
    the fees and expenses of the Transfer Agent for the Shares; (v) the fees
    and disbursements of counsel for the Company; (vi) all fees and other
    charges of the independent public accountants of the Company; (vii) the
    cost of furnishing and delivering to the Underwriters and dealers
    participating in the offering copies of the Registration Statement
    (including appropriate exhibits), Preliminary Prospectuses, the Prospectus
    and any amendments of, or supplements to, any of the foregoing; (viii) the
    NASD filing fee; (ix) all accountable fees and expenses of counsel for the
    Company and counsel for the Representatives incurred in qualifying the
    Shares for sale under the laws of such jurisdictions upon which the
    Representatives and the Company may agree (including filing fees); and (x)
    the accountable expenses, not to exceed $50,000, of the Representatives
    including but not limited to the reasonable fees and expenses of the
    Representatives' counsel, costs and expenses of conducting a due diligence
    investigation of the Company and due diligence meetings, costs of travel in
    connection with the selling effort and tombstone advertisements.  The
    Representatives acknowledge receipt of a $10,000 advance against the
    $50,000 accountable expense allowance referred to in the preceding
    sentence.  In the event this Agreement is terminated pursuant to Section 11
    below, the Company shall remain obligated to pay the Representatives their
    actual accountable out-of-pocket expenses, not to exceed $50,000, plus any
    fees and expenses described in (ix) above.

         (l)  The Company will not take, directly or indirectly, any action
    designed to or which might reasonably be expected to cause or result in, or 


                                         -15-

<PAGE>

which has constituted, the stabilization or manipulation of the price of any
security of the Company to facilitate the sale or resale of the Shares, and will
not effect any sales of any security of the Company which are required to be
disclosed in response to Item 701 of Regulation S-B of the Commission which have
not been so disclosed in the Registration Statement.

         4.   CONDITIONS OF OBLIGATIONS OF THE UNDERWRITERS. 

         The respective obligations of the Underwriters to purchase and pay for
the Shares as provided herein shall be subject to the accuracy of the
representations and warranties of the Company, in the case of the Firm Shares as
of the date hereof and the First Closing Date (as if made on and as of the First
Closing Date), and in the case of the Option Shares, as of the date hereof and
the Second Closing Date (as if made on and as of the Second Closing Date), to
the performance by the Company (in the case of the First Closing Date) of its
obligations hereunder, and to the satisfaction of the following additional
conditions on or before the First Closing Date in the case of the Firm Shares
and on or before the Second Closing Date in the case of the Option Shares:

         (a)  All filings required by Rules 424, 430A and 434 under the Act
    shall have been timely made; no stop order suspending the effectiveness of
    the Registration Statement, as amended from time to time, or any part
    thereof shall have been issued and no proceedings for that purpose shall
    have been initiated or threatened by the Commission; and all requests for
    additional information on the part of the Commission shall have been
    complied with to the reasonable satisfaction of the Representatives.

         (b)  The Representatives shall have received the opinion of Fredrikson
    & Byron, P.A., counsel for the Company, dated as of the First Closing Date
    or the Second Closing Date, as the case may be, addressed to the
    Underwriters and satisfactory in form and substance to the Representatives
    and their counsel, substantially to the effect that:
    
              (i)  The Company has been duly incorporated and is validly
         existing as a corporation in good standing under the laws of the State
         of Minnesota, with corporate power and authority to own or lease its
         properties and conduct its business as described in the Registration
         Statement and the Prospectus.  The Company is duly qualified and in
         good standing as a foreign corporation in each jurisdiction where the
         conduct of its business makes such qualification necessary and the
         failure to so qualify would have a material adverse effect on the
         business, properties, condition (financial or otherwise), results of
         operations, stockholders' equity or prospects of the Company. 

              (ii) The Company has authorized and outstanding capital stock as
         described in the Prospectus.  The outstanding shares of the 


                                         -16-

<PAGE>

         Company's capital stock have been duly authorized and validly issued
         and are fully paid and nonassessable. The Shares to be issued and sold
         by the Company pursuant to this Agreement have been duly authorized
         and, when issued and paid for as contemplated herein, will be validly
         issued, fully paid and nonassessable.  No preemptive rights pursuant
         to corporate law or, to the knowledge of such counsel, other
         preemptive or similar subscription rights of shareholders of the
         Company, or of holders of warrants, options, convertible securities or
         other rights to acquire shares of capital stock of the Company, exist
         with respect to any of the Shares or the issue and sale thereof.  To
         the knowledge of such counsel, no rights to register outstanding
         shares of the Company's capital stock, or shares issuable upon the
         exercise of outstanding warrants, options, convertible securities or
         other rights to acquire shares of such capital stock, exist which have
         not been validly exercised or waived with respect to the Registration
         Statement. The capital stock of the Company, including the Shares,
         conforms in all material respects to the description thereof contained
         in the Prospectus.
    
              (iii)  The Registration Statement has become effective under the
         Act and, to the knowledge of such counsel, no stop order or
         proceedings with respect thereto have been instituted or are pending
         or threatened by the Commission.
    
              (iv) The Registration Statement, the Prospectus and each
         amendment or supplement thereto comply as to form in all material
         respects with the requirements of the Act and the rules and
         regulations thereunder (except that such counsel need express no
         opinion as to the financial statements, related schedules or other
         financial data included therein).
    
              (v)  To such counsel's knowledge, there are no statutes,
         regulations or legal or governmental proceedings required to be
         described in the Prospectus that are not described as required and no
         franchises, leases, contracts, agreements or documents of a character
         required to be disclosed in the Registration Statement or Prospectus
         or to be filed as exhibits to the Registration Statement which are not
         disclosed or filed, as required.
    
              (vi) The statements (A) in the Prospectus under the caption
         "Description of Securities" and (B) in the Registration Statement in
         Item 24, insofar as such statements constitute a summary of matters of
         law, are accurate summaries and fairly present the information called
         for with respect to such matters.
    
              (vii)     The execution, delivery and performance of this
         Agreement and the consummation of the transactions herein 


                                         -17-

<PAGE>

         contemplated do not and will not conflict with or result in a
         violation of or default under the Amended Articles of Incorporation or
         Bylaws of the Company, or (assuming compliance with all applicable
         state securities and blue sky laws) under any statute, rule or
         regulation of the United States or the State of Minnesota applicable
         to the Company or any permit, order, judgment or decree known to such
         counsel, or any indenture, mortgage, loan agreement or other material
         agreement, instrument or obligation known to such counsel to which the
         Company is a party or by which it or its material properties are
         bound. 
    
              (viii)    The Company has the corporate power and authority to
         enter into this Agreement and to authorize, issue and sell the Shares
         as contemplated hereby.  This Agreement has been duly and validly
         authorized, executed and delivered by the Company and constitutes a
         valid, legal and binding obligation of the Company enforceable in
         accordance with its terms, except as rights to indemnity hereunder may
         be limited by federal or state securities laws and except as such
         enforceability may be limited by bankruptcy, insolvency,
         reorganization or similar laws affecting the rights of creditors
         generally and subject to general principles of equity.
    
              (ix) No approval, consent, order, authorization, designation,
         declaration or filing by or with any regulatory, administrative or
         other governmental body is necessary in connection with the execution,
         delivery and performance of this Agreement and the consummation of the
         transactions herein contemplated (other than as may be required by
         state securities and blue sky laws, as to which such counsel need
         express no opinion) except such as have been obtained or made,
         specifying the same.
    
              (x)  To such counsel's knowledge, there are no legal or
         governmental proceedings, pending or threatened, before any court or
         administrative body or regulatory agency to which the Company is a
         party or to which any of the properties of the Company is subject.
    
              (xi)  The form of certificate for the Shares is in due and proper
         form and complies with all applicable statutory requirements.  
    
              (xii)     The Company has the corporate power and authority to
         issue the Representatives' Warrant.  The Representatives' Warrant has
         been duly authorized, executed and delivered by the Company and
         constitutes the valid and binding obligation of the Company
         enforceable in accordance with its terms, except as enforceability
         thereof may be limited by bankruptcy, insolvency, reorganization or
         similar laws affecting the rights of creditors generally and subject
         to general principles of equity; the Warrant Shares issuable upon
         exercise of the 


                                         -18-

<PAGE>

         Representatives' Warrant have been duly authorized and reserved for
         issuance upon exercise of the Representatives' Warrant, and, upon
         exercise of the Representatives' Warrant and receipt by the Company of
         the consideration for such shares in accordance with the terms
         thereof, such Warrant Shares will be validly issued, fully paid and
         nonassessable.

         In rendering the opinions described above, counsel for the Company may
    rely, as to matters of fact with respect to the Company, upon
    representations of the Company contained in this Agreement and certificates
    of officers of the Company provided that copies of such certificates are
    delivered to the Representatives.

         In addition to the matters set forth above, each such opinion shall
    also include a statement to the effect that, although such counsel cannot
    guarantee the accuracy, completeness or fairness of any of the statements
    contained in the Registration Statement or Prospectus and such counsel
    makes no representation that it has independently verified the accuracy,
    completeness or fairness of such statements, in connection with such
    counsel's representation and inquiry of the Company in the preparation of
    the Registration Statement and Prospectus, nothing came to the attention of
    such counsel which caused it to conclude that, as of the time the
    Registration Statement became effective and as of the First Closing Date or
    the Second Closing Date, as the case may be, the Registration Statement or
    any further amendment thereto (other than the financial statements, related
    schedules and other financial data included therein, as to which such
    counsel need express no opinion) contained or contains an untrue statement
    of a material fact or omitted or omits to state a material fact required to
    be stated therein or necessary to make the statements therein not
    misleading or that, as of the date of the Prospectus or any amendment or
    supplement thereto and as of the First Closing Date or the Second Closing
    Date, as the case may be, the Prospectus or any amendment or supplement
    thereto (other than the financial statements, related schedules and other
    financial data included therein, as to which such counsel need express no
    opinion) contained or contains an untrue statement of a material fact or
    omitted or omits to state a material fact necessary to make the statements
    therein, in light of the circumstances in which they were made, not
    misleading.

         (c)  The Representatives shall have received on the First Closing Date
    or the Second Closing Date, as the case may be, the opinion of Moore &
    Hanson, intellectual property counsel for the Company, dated the First
    Closing Date or the Second Closing Date, as the case may be, addressed to
    the Underwriters, and satisfactory in form and substance to the
    Representatives and their counsel, substantially to the effect that:


                                         -19-

<PAGE>
    
              (i)  To the best of such counsel's knowledge, the statements in
         the Registration Statement and the Prospectus under the caption
         "Business-Patents and Proprietary Rights" are accurate and complete
         statements or summaries of the matters therein set forth.

              (ii) To the best of such counsel's knowledge, the Company owns or
         is licensed to use all patents, trade secrets, trademarks, service
         marks or other proprietary information or know-how necessary to
         conduct the business now being or proposed to be conducted by the
         Company as described in the Prospectus (the "Proprietary Rights").

              (iii)     To the best of such counsel's knowledge, there are no
         pending legal proceedings relating to the Proprietary Rights, and no
         such proceedings are threatened or contemplated.

              (iv) To the best of such counsel's knowledge after due inquiry,
         the Company is not infringing or otherwise violating, and the conduct
         of the business of the Company as intended to be conducted as
         described in the Prospectus will not infringe or otherwise violate,
         any patents, trade secrets, trademarks, service marks, copyrights or
         other proprietary information or know-how of any persons, and no
         person is infringing or otherwise violating any of the Proprietary
         Rights in a way which could materially affect the ownership or use
         thereof by the Company.

              (v)  The Company is listed in the records of the United States
         Patent and Trademark Office as the sole owner or assignee of record of
         the patent listed on an appendix to such opinion (the "Patent").  To
         the best of such counsel's knowledge, there are no asserted or
         unasserted claims of any persons relating to the scope or ownership of
         the Patent, and there are no liens which have been filed against the
         Patent.

              (vi) The Company is listed in the records of the appropriate
         foreign patent offices as the sole assignee of record of each of the
         foreign applications listed on an appendix to such opinion (the
         "Foreign Applications").  To the best of such counsel's knowledge,
         there are no asserted or unasserted claims of any persons relating to
         the scope or ownership of the Foreign Applications, there are no liens
         which have been filed against any of the Foreign Applications, there
         are no material defects of form in the preparation or filing of the
         Foreign Applications, the Foreign Applications are being diligently
         prosecuted, and none of the Foreign Applications has been finally
         rejected or abandoned.  Such counsel has no reason to believe that the
         Foreign Applications will not eventuate in issued patents, or that any
         patents issued in respect of any such Foreign Applications will not be


                                         -20-

<PAGE>

         valid or will not afford the Company reasonable patent protection
         relative to the subject matter thereof.

              (vii)  Nothing has come to the attention of such counsel that
         causes such counsel to believe that the discussion of the Proprietary
         Rights set forth in (A) the Registration Statement or any amendment
         thereof, at the time the Registration Statement became effective and
         as of the First Closing Date or the Second Closing Date, as the case
         may be, contained or contains any untrue statement of a material fact
         or omitted or omits to state any material fact required to be stated
         therein or necessary to make the statements therein not misleading or
         (B) the Prospectus as amended or supplemented, as of the date of the
         Prospectus or any such amendment of supplement and as of the First
         Closing Date or the Second Closing Date, as the case may be, contained
         or contains any untrue statement of a material fact or omitted or
         omits to state any material fact required to be stated therein or
         necessary to make the statements therein, in light of the
         circumstances in which they were made, not misleading.

         (d)  The Representatives shall have received from Dorsey & Whitney
    LLP, counsel for the Underwriters, an opinion dated the First Closing Date
    or the Second Closing Date, as the case may be, with respect to such
    matters as the Representatives may reasonably request, and such counsel
    shall have received such documents and information as they may reasonably
    request to enable them to pass upon such matters.

         (e)  The Representatives shall have received on each of the date
    hereof, the First Closing Date and the Second Closing Date, as the case may
    be, a signed letter, dated as of the date hereof, the First Closing Date or
    the Second Closing Date, as the case may be, in form and substance
    satisfactory to the Representatives, from McGladrey & Pullen LLP, to the
    effect that they are independent public accountants with respect to the
    Company within the meaning of the Act and the related rules and regulations
    and containing statements and information of the type ordinarily included
    in accountants' "comfort letters" to underwriters with respect to the
    financial statements and certain financial information contained in the
    Registration Statement and the Prospectus.

         (f)  Subsequent to the respective dates as of which information is
    given in the Registration Statement and the Prospectus, and except as
    contemplated or referred to in the Prospectus, the Company shall not have
    incurred any direct or contingent liabilities or obligations material to
    the Company, or entered into any material transactions, except liabilities,
    obligations or transactions in the ordinary course of business, or declared
    or paid any dividends or made any distribution of any kind with respect to
    its capital stock; and there shall not have been any change in the capital
    stock 


                                         -21-

<PAGE>

    (other than a change in the number of outstanding shares of Common Stock
    due to the exercise of options or warrants described in the Registration
    Statement and the Prospectus), or any change in the short-term debt or
    long-term debt (including capitalized lease obligations) of the Company, 
    or any issuance of options, warrants, convertible securities or other
    rights to purchase the capital stock of the Company or any change or any
    development involving a prospective change in or affecting the general
    affairs, management, financial position, shareholders' equity or results of
    operations of the Company, otherwise than as set forth or contemplated in
    the Prospectus, the effect of which, in the judgment of the Representatives
    makes it impracticable or inadvisable to proceed with the public offering
    or the delivery of the Shares being delivered on the terms and in the
    manner contemplated in the Prospectus.

         (g)  The Representatives shall have received from the Company a
    certificate, dated as of the First Closing Date or Second Closing Date, as
    the case may be, of the chief executive officer, the chief operating
    officer and the chief financial officer of the Company to the effect that:

              (i)   The representations and warranties of the Company in this
         Agreement are true and correct as if made on and as of each closing
         date.  The Company has complied with all the agreements and satisfied
         all the conditions on its part to be performed or satisfied at, or
         prior to, such date.

              (ii)  No stop order suspending the effectiveness of the
         Registration Statement has been issued, and no proceeding for that
         purpose has been instituted or is pending or, to the knowledge of such
         officers, is contemplated under the Act.

              (iii)   Neither the Registration Statement nor the Prospectus nor
         any amendment thereof or supplement thereto included any untrue
         statement of a material fact or omitted to state any material fact
         required to be stated therein or necessary to make the statements
         therein, in light of the circumstances in which they were made, not
         misleading, and, since the effective date of the Registration
         Statement, there has occurred no event required to be set forth in an
         amended or supplemented prospectus which has not been so set forth;
         provided, however, that such certificate does not require any
         representation concerning statements in, or omissions from, the
         Registration Statement or Prospectus or any amendment thereof or
         supplement thereto, which are based solely upon and conform to written
         information furnished to the Company by any of the Underwriters
         specifically for use in the preparation of the Registration Statement
         or the Prospectus or any such amendment or supplement.


                                         -22-

<PAGE>

              (iv)   Subsequent to the respective dates as of which information
         is given in the Registration Statement and the Prospectus, and except
         as contemplated or referred to in the Prospectus, the Company has not
         incurred any direct or contingent liabilities or obligations material
         to the Company, or entered into any material transactions, except
         liabilities, obligations or transactions in the ordinary course of
         business, or declared or paid any dividend or made any distribution of
         any kind with respect to its capital stock, and there has not been any
         change in the capital stock (other than a change in the number of
         outstanding shares of Common Stock due to the exercise of options or
         warrants described in the Registration Statement and the Prospectus),
         short-term debt, or long-term debt (including capitalized lease
         obligations) of the Company, or any issuance of options, warrants,
         convertible securities or other rights to purchase the capital stock
         of the Company or any material adverse change or any development
         involving a prospective material adverse change (whether or not
         arising in the ordinary course of business) in or affecting the
         general affairs, condition (financial or otherwise), business, key
         personnel, property, prospects, net worth or results of operations of
         the Company.

              (v)   Subsequent to the respective dates as of which information
         is given in the Registration Statement and the Prospectus, the Company
         has not sustained any material loss of, or damage to, its business or
         properties, whether or not covered by insurance.

              (vi)  Except as is otherwise expressly stated in the Registration
         Statement and Prospectus there are no material actions, suits or
         proceedings pending before any court or governmental agency, authority
         or body, or, to such officers' knowledge, threatened, to which the
         Company is a party or of which the business or property of the Company
         is the subject.

         (h)  The Representatives shall have received, dated as of the First
    Closing Date or Second Closing Date, as the case may be, from the Secretary
    of the Company a certificate of incumbency certifying the names, titles and
    signatures of the officers authorized to execute, deliver and perform this
    Agreement.  Attached to such certificate shall be a copy of the Bylaws of
    the Company and the resolutions of the Board of Directors of the Company
    authorizing the execution, delivery and performance of this Agreement. 
    Such certificate shall also certify that such resolutions, the Amended
    Articles of Incorporation of the Company and the Bylaws of the Company have
    been validly adopted and have not been amended or modified, except as
    described in the Prospectus.

         (i)  The Representatives shall have received a written agreement from
    each of the officers, directors and shareholders named in Schedule II


                                         -23-

<PAGE>

    hereto, that no offer, sale, contract to sell, other disposition of any
    Common Stock of the Company will be made for a period of 180 days after the
    effective date of the Registration Statement, directly or indirectly, by
    such holder otherwise than with the prior written consent of the
    Representatives.

         (j)  The Shares shall have been approved for listing on the Nasdaq
    National Market.

         (k)  The Company shall have furnished to the Underwriters, dated as of
    the date of each closing date, such further certificates and documents as
    the Representatives shall have reasonably required.

         (l)  All such opinions, certificates, letters and documents will be in
    compliance with the provisions hereof only if they are reasonably
    satisfactory to the Representatives and its legal counsel.  All statements
    contained in any certificate, letter or other document delivered pursuant
    hereto by, or on behalf of, the Company shall be deemed to constitute
    representations and warranties of the Company.

         (m)  The Representatives may waive in writing the performance of any
    one or more of the conditions specified in this Section 4 or extend the
    time for their performance.

         5.   REPRESENTATIVES' WARRANT.

         On the First Closing Date, the Company shall sell to you, in
consideration of a payment by the Representatives to the Company of Fifty
Dollars ($50.00),  the Representatives' Warrant, which shall first become
exercisable one year after the Effective Date and shall remain exercisable for a
period of four years thereafter.  The Representatives' Warrant shall be subject
to certain transfer restrictions and shall be in substantially the form filed as
an exhibit to the Registration Statement and attached as Appendix A hereto.

         6.   INDEMNIFICATION.

         (a)  The Company agrees to indemnify and hold harmless each
    Underwriter and each person, if any, who controls any Underwriter within
    the meaning of Section 15 of the Act against any losses, claims, damages or
    liabilities, joint or several, to which such Underwriter or each such
    controlling person may become subject, under the Act, the Exchange Act, the
    common law or otherwise, insofar as such losses, claims, damages or
    liabilities (or actions in respect thereof) arise out of, or are based
    upon: (i) any untrue statement or alleged untrue statement of a material
    fact contained in the Registration Statement or any amendment thereof, or
    the omission or alleged omission to state in the Registration Statement or
    any amendment thereof a material fact required to be stated therein or
    necessary to make the 


                                         -24-

<PAGE>

statements therein not misleading; (ii) any untrue statement or alleged untrue
statement of a material fact contained in any Preliminary Prospectus, the
Prospectus or any amendment or supplement thereto, or the omission or alleged
omission to state therein a material fact required to be stated therein or
necessary to make the statements therein, in light of the circumstances under
which they were made, not misleading; or (iii) any untrue statement or alleged
untrue statement of a material fact contained in any application or other
statement executed by the Company or based upon written information furnished by
the Company and filed in any jurisdiction in order to qualify the Shares under,
or exempt the Shares or the sale thereof from qualification under, the
securities laws of such jurisdiction, or the omission or alleged omission to
state in such application or statement a material fact required to be stated
therein or necessary to make the statements therein, in light of the
circumstances under which they were made, not misleading; and will reimburse
each Underwriter and each such controlling person for any legal or other
expenses reasonably incurred by such Underwriter or controlling person (subject
to the limitations of Section 6(c) below) in connection with investigating or
defending against any such loss, claim, damage, liability or action; provided,
however, that the Company will not be liable in any such case to the extent that
any such loss, claim, damage or liability arises out of, or is based upon, an
untrue statement, or alleged untrue statement, omission or alleged omission,
made in reliance upon and in conformity with information furnished to the
Company by, or on behalf of, any Underwriter in writing specifically for use in
the preparation of the Registration Statement or any such post effective
amendment thereof, any such Preliminary Prospectus or the Prospectus or any such
amendment thereof or supplement thereto; provided, further that the foregoing
indemnity agreement is subject to the condition that, insofar as it relates to
any untrue statement, alleged untrue statement, omission or alleged omission
made in any Preliminary Prospectus but eliminated or remedied in the Prospectus,
such indemnity agreement shall not inure to the benefit of any Underwriter (or
to the benefit of any person who controls such Underwriter), if the person
asserting any loss, claim, damage or liability purchased the Shares from such
Underwriter which are the subject thereof, was not sent or given a copy of the
Prospectus with, or prior to, the written confirmation of the sale of such
Shares to such person.  This indemnity agreement is in addition to any liability
which the Company may otherwise have.

         (b)  Each Underwriter severally, but not jointly, agrees to indemnify
    and hold harmless the Company, each of the Company's directors, each of the
    Company's officers who has signed the Registration Statement, and each
    person who controls the Company within the meaning of Section 15 of the 
    Act against any losses, claims, damages or liabilities, joint or several,
    to which the Company or any such director, officer, or controlling person
    may become subject, under the Act, the Exchange Act, the common law or
    otherwise, insofar as such losses, claims, damages, or liabilities (or
    actions in respect 


                                         -25-

<PAGE>

    thereof) arise out of, or are based upon: (i) any untrue statement or
    alleged untrue statement of a material fact contained in the Registration
    Statement or any amendment thereof, or the omission or alleged omission to
    state in the Registration Statement or any amendment thereof, a material
    fact required to be stated therein or necessary to make the statements
    therein not misleading; (ii) any untrue statement or alleged untrue
    statement of a material fact contained in any Preliminary Prospectus, the
    Prospectus or any amendment or supplement thereto, or the omission or
    alleged omission to state therein a material fact required to be stated
    therein or necessary in order to make the statements therein, in light of
    the circumstances under which they were made, not misleading; or (iii) any
    untrue statement or alleged untrue statement of a material fact contained
    in any application or other statement executed by the Company or by any
    Underwriter or based upon written information furnished by the Company or
    the Underwriters and filed in any jurisdiction in order to qualify the
    Shares under, or exempt the Shares or the sale thereof from qualification
    under, the securities laws of such jurisdiction, or the omission or alleged
    omission to state in such application or statement a material fact required
    to be stated therein or necessary to make the statements therein, in light
    of the circumstances under which they were made, not misleading; in each of
    the above cases to the extent, but only the extent, that such untrue
    statement, alleged untrue statement, omission or alleged omission, was made
    in reliance upon and in conformity with information furnished to the
    Company by, or on behalf of, any Underwriter in writing specifically for
    use in the preparation of the Registration Statement or any such 
    post-effective amendment thereof, any such Preliminary Prospectus or the
    Prospectus or any such amendment thereof or supplement thereto, or in any
    application or other statement executed by the Company or by any
    Underwriter and filed in any jurisdiction; and each Underwriter will
    reimburse any legal or other expenses reasonably incurred by the Company or
    any such director, officer, or controlling person in connection with
    investigating or defending against any such loss, claim, damage, liability
    or action.  This indemnity agreement is in addition to any liability which
    the Underwriters may otherwise have.

         (c)  Promptly after receipt by an indemnified party under this Section
    6 of notice of the commencement of any action, such indemnified party will,
    if a claim in respect thereof is to be made against any indemnifying party
    under this Section 6, notify in writing the indemnifying party of the
    commencement thereof.  The omission to so notify the indemnifying party
    will not relieve it from any liability under this Section 6 as to the
    particular item for which indemnification is then being sought, unless such
    omission so to notify prejudices the indemnifying party's ability to defend
    such action.  In case any such action is brought against any indemnified
    party and the indemnified party notifies an indemnifying party of the
    commencement thereof, the indemnifying party will be entitled to
    participate therein and, to the extent that it may wish, jointly with any
    other indemnifying party 


                                         -26-

<PAGE>

    similarly notified, to assume the defense thereof with counsel who shall be
    reasonably satisfactory to such indemnified party; and after notice from
    the indemnifying party to such indemnified party of its election so to
    assume the defense thereof, the indemnifying party will not be liable to
    such indemnified party under this Section 6 for any legal or other expenses
    subsequently incurred by such indemnified party in connection with the
    defense thereof other than reasonable costs of investigation; provided,
    however, that if, in the reasonable judgment of the indemnified party or
    parties, it is advisable for such party or parties and any controlling
    persons to be represented by separate counsel, any indemnified party shall
    have the right to employ separate counsel to represent it and other parties
    and their controlling persons who may be subject to liability arising out
    of any claim in respect of which indemnity may be sought by any party
    hereunder, in which event the fees and expenses of such separate counsel
    shall be borne by the indemnifying party.  In such event, the indemnifying
    party will not be obligated to pay the fees and expenses of more than one
    counsel for the indemnified parties with respect to such claim.  Any such
    indemnifying party shall not be liable to any such indemnified party on
    account of any settlement of any claim or action effected without the prior
    written consent of such indemnifying party.

         7.   CONTRIBUTION.

         (a)  If the indemnification provided for in Section 6 is unavailable
    under applicable law to any indemnified party in respect of any losses,
    claims, damages or liabilities referred to therein, then each indemnifying
    party, in lieu of indemnifying such indemnified party, shall contribute to
    the amount paid or payable by such indemnified party as a result of such
    losses, claims, damages or liabilities (i) in such proportion as is
    appropriate to reflect the relative benefits received by the Company, and
    the Underwriters from the offering of the Shares or (ii) if the allocation
    provided by clause (i) above is not permitted by applicable law, in such
    proportion as is appropriate to reflect not only the relative benefits
    referred to in clause (i) above but also the relative fault of the parties
    in connection with the statements or omissions which resulted in such
    losses, claims, damages or liabilities, as well as any other relevant
    equitable considerations.  The Company and the Underwriters agree that
    contribution determined by per capita allocation (even if the Underwriters
    were considered a single person) would not be equitable.  The respective
    relative benefits received by the Company and the Underwriters shall be
    deemed to be in the same proportion as the total net proceeds from the
    offering of the Shares (before deducting expenses) received by the Company
    bears to the total underwriting discount received by the Underwriters, in
    each case as set forth in the Prospectus.  The relative fault of the
    parties shall be determined by reference to, among other things, whether
    the untrue or alleged untrue statement of a material fact or the omission
    or alleged omission to state a material fact relates to information
    supplied by the parties and the parties' relative intent, knowledge, access
    to information and 


                                         -27-

<PAGE>

    opportunity to correct or prevent such statement or omission.  The amount
    paid or payable by a party as a result of the losses, claims, damages and
    liabilities referred to above shall be deemed to include any legal or other
    fees or expenses reasonably incurred by such party in connection with
    investigating or defending any action or claim.  Notwithstanding the
    provisions of this Section 7, no Underwriter shall be required to
    contribute any amount in excess of the amount by which the total price at
    which the Shares underwritten by it and distributed to the public were
    offered to the public exceeds the amount of any damages which such
    Underwriter has otherwise been required to pay by reason of any untrue or
    alleged untrue statement or omission or alleged omission in the
    Registration Statement, any Preliminary Prospectus, the Prospectus or any
    amendment or supplement thereto.  The Underwriters' obligation to
    contribute pursuant to this Section 7 are several and not joint in
    proportion to their respective Underwriting Obligations.  No person guilty
    of fraudulent misrepresentation (within the meaning of Section 11(f) of the
    Act) shall be entitled to contribution from any person who was not guilty
    of such fraudulent misrepresentation.  For purposes of this Section 7, each
    person who controls an Underwriter within the meaning of the Act or the
    Exchange Act shall have the same rights to contribution as such
    Underwriter, each person who controls the Company within the meaning of the
    Act or the Exchange Act shall have the same rights to contribution as the
    Company and each officer of the Company who shall have signed the
    Registration Statement and each director of the Company shall have the same
    rights to contribution as the Company.

         (b)  Promptly after receipt by a party to this Agreement of notice of
    the commencement of any action, suit, or proceeding, such person will, if a
    claim for contribution in respect thereof is to be made against another
    party (the "Contributing Party"), notify the Contributing Party of the
    commencement thereof, but the omission so to notify the Contributing Party
    will not relieve the Contributing Party from any liability which it may
    have to any party other than under this Section 7, unless such omission so
    to notify prejudices the Contributing Party's ability to defend such
    action.  Any notice given pursuant to Section 6 hereof shall be deemed to
    be like notice hereunder.  In case any such action, suit or proceeding is
    brought against any party, and such person notifies a Contributing Party of
    the commencement thereof, the Contributing Party will be entitled to
    participate therein with the notifying party and any other Contributing
    Party similarly notified.

         8.   EFFECTIVE DATE OF THIS AGREEMENT AND TERMINATION.

         (a)  This Agreement shall become effective the later of (a) the date
    and time that this Agreement is executed and delivered by the parties
    hereto and (b) at 10:00 a.m., Minneapolis time, on the first full business
    day following the Effective Date, or at such earlier time after the
    Effective Date as the Representatives in its discretion shall first release
    the Shares for offering 


                                         -28-

<PAGE>

    to the public.  For purposes of this Section 10, the Shares shall be deemed
    to have been released to the public upon release by the Representatives of
    the publication of a newspaper advertisement relating to the Shares or upon
    release of a telegram or a letter offering the Shares for sale to
    securities dealers, whichever shall first occur.

         (b)  The Representatives shall have the right to terminate this
    Agreement by giving notice to the Company as hereinafter specified at any
    time prior to the First Closing Date, and the option referred to in Section
    2(b), if exercised, may be canceled at any time by the Representatives by
    giving such notice to the Company at any time prior to the Second Closing
    Date, if (i) the Company shall have failed, refused or been unable, at or
    prior to the First Closing Date, to perform any material agreement on its
    part to be performed hereunder; (ii) any other condition of the
    Underwriters' obligations hereunder is not fulfilled; (iii) trading in
    securities generally on the New York Stock Exchange, American Stock
    Exchange or the Nasdaq Stock Market shall have been suspended, or minimum
    or maximum prices for trading shall have been required or established by
    the Commission or by any such exchange or the Nasdaq Stock Market; (iv) a
    banking moratorium shall have been declared by federal, New York or
    Minnesota authorities; (v) there shall have been such a material adverse
    change in general economic, monetary, political or financial conditions, or
    the effect of international conditions on the financial markets in the
    United States shall be such as, in the judgment of the Representatives,
    makes it impractical or inadvisable to proceed with the completion of the
    sale of and payment for the Shares; (vi) there shall have been the
    enactment, publication, decree or other promulgation of any federal or
    state statute, regulation, rule or order of any court or other governmental
    authority, which in the judgment of the Representatives materially and
    adversely affects or will materially and adversely affect the business or
    operations of the Company; or (vii) there shall be an outbreak of major
    hostilities (or an escalation thereof) in which the United States is
    involved or a formal declaration of war by the United States of America
    shall have occurred or any other substantial national or international
    calamity or any other event or occurrence of a similar character shall have
    occurred since the execution of this Agreement that, in the judgment of the
    Representatives, makes it impractical or inadvisable to proceed with the
    completion of the sale of and payment for the Shares.  Any such termination
    shall be without liability of any party to any other party, except as
    provided in Sections 6 and 7 hereof; provided, however, that the Company
    shall remain obligated to pay costs and expenses to the extent provided in
    Section 3(k) hereof.

         (c)   If the Representatives elect to prevent this Agreement from
    becoming effective or to terminate this Agreement as provided in this
    Section  8, they shall notify the Company by telegram or telephone,
    confirmed by letter sent to the address specified in Section 11 hereof.  If
    the Company shall elect to prevent this Agreement from becoming effective,
    it shall notify the 


                                         -29-

<PAGE>

    Representatives promptly by telegram or telephone, confirmed by letter sent
    to the address specified in Section 11 hereof.

         (d)  If the Company shall fail at the First Closing Date to sell and
    deliver the number of Shares which it is obligated to sell hereunder, then
    this Agreement shall terminate without any liability on the part of any
    Underwriter.  No action taken pursuant to this Section 8(d) shall relieve
    the Company from liability, if any, in respect of such default.

         9.   DEFAULT OF UNDERWRITER.

         If on the First Closing Date or the Second Closing Date, as the case
may be, any Underwriter shall fail to purchase and pay for the portion of the
Shares which such Underwriter has agreed to purchase and pay for on such date
(otherwise than by reason of any default on the part of the Company), you, as
Representatives of the Underwriters, shall use your best efforts to procure
within 36 hours thereafter one or more of the other Underwriters, or any others,
to purchase from the Company such amounts as may be agreed upon, and upon the
terms set forth herein, of the Firm Shares or Option Shares, as the case may be,
which the defaulting Underwriter or Underwriters failed to purchase.  If during
such 36 hours you, as Representatives, shall not have procured such other
Underwriters, or any others, to purchase the Firm Shares or Option Shares, as
the case may be, agreed to be purchased by the defaulting Underwriter or
Underwriters, then (A) if the aggregate number of Shares with respect to which
such default shall occur does not exceed 10% of the Firm Shares or Option
Shares, as the case may be, covered hereby, the other Underwriters shall be
obligated, severally, in proportion to the respective numbers of Firm Shares or
Option Shares, as the case may be, which they are obligated to purchase
hereunder, to purchase the Firm Shares or Option Shares, as the case may be,
which such defaulting Underwriter or Underwriters failed to purchase or (B) if
the aggregate number of shares of Firm Shares or Option Shares, as the case may
be, with respect to which such default shall occur exceeds 10% of the Firm
Shares or Option Shares, as the case may be, covered hereby, the Company or you
as the Representatives of the Underwriters will have the right, by written
notice given within the next 36-hour period to the parties to this Agreement, to
terminate this Agreement without liability on the part of the non-defaulting
Underwriters or of the Company except for expenses to be borne by the Company,
and the Underwriters as provided in Section 3(k) hereof and the indemnity and
contribution agreements in Sections 6 and 7 hereof.  In the event of a default
by any Underwriter or Underwriters, as set forth in this Section 9, the First
Closing Date or Second Closing Date, as the case may be, may be postponed for
such period, not exceeding seven days, as you, as Representatives, may determine
in order that the required changes, not including a reduction in the number of
Firm Shares, in the Registration Statement or in the Prospectus or in any other
documents or arrangements may be effected.  The term "Underwriter" includes any
person substituted for a defaulting Underwriter.  Any action taken under this
Section 9 


                                         -30-

<PAGE>

shall not relieve any defaulting Underwriter from liability in respect of any
default of such Underwriter under this Agreement.

         10.  SURVIVAL OF INDEMNITIES, CONTRIBUTION AGREEMENTS, WARRANTIES AND
              REPRESENTATIONS.

         The respective indemnity and contribution agreements of the Company
and the Underwriters contained in Sections 6 and 7, respectively, the
representations and warranties of the Company set forth in Section 1 hereof, and
the covenants of the Company set forth in Section 3 hereof, respectively, shall
remain operative and in full force and effect, regardless of any investigation
made by, or on behalf of, the Underwriters, the Company, any of its officers and
directors, or any controlling person referred to in Sections 6 and 7, and shall
survive the delivery of and payment for the Shares.  The aforesaid indemnity and
contribution agreements shall also survive any termination or cancellation of
this Agreement.  Any successor of any party or of any such controlling person,
or any legal representatives of such controlling person, as the case may be,
shall be entitled to the benefit of the respective indemnity and contribution
agreements.

         11.  NOTICES.

         All notices or communications hereunder, except as herein otherwise
specifically provided, shall be in writing and, if sent to the Representatives
or any of the Underwriters, shall be mailed, delivered, or telecopied and
confirmed, to John G.  Kinnard and Company, Incorporated, 920 Second Avenue
South, Minneapolis, Minnesota 55402, Attention: [Jerry Johnson], with a copy to
Elizabeth C. Hinck, Esq., Dorsey & Whitney LLP, 220 South Sixth Street,
Minneapolis, Minnesota 55402; if sent to the Company, shall be mailed,
delivered, or telecopied, and confirmed, to Advanced UroScience, Inc., 1290
Hammond Road, St. Paul, Minnesota 55110, Attention: Dean A. Klein, with a copy
to Dobson West, Esq., Fredrikson & Byron, P.A., 1100 International Centre, 900
Second Avenue South, Minneapolis, Minnesota 55402. 

         12.  INFORMATION FURNISHED BY THE UNDERWRITER.

         The statements relating to the stabilization activities of the
Underwriters and the statements in paragraphs three and eight under the caption
"Underwriting" in any Preliminary Prospectus and in the Prospectus constitute
the only information furnished by, or on behalf of, the Underwriters in writing
specifically for use in the preparation of the Registration Statement or any
post-effective amendment thereof, any preliminary Prospectus or the Prospectus
or any amendment thereof or supplement thereto, or in any application or other
statement executed by the Company or by any Underwriter and filed in any
jurisdiction as referred to in Section 6 hereof.


                                         -31-

<PAGE>

         13.  PARTIES.

         This Agreement shall inure to the benefit of and be binding upon the
Underwriters and the Company, their respective successors and assigns and the
officers, directors and controlling persons referred to in Sections 6 and 7. 
Nothing expressed in this Agreement is intended or shall be construed to give
any person or corporation, other than the parties hereto, their respective
successors and assigns and the controlling persons, officers and directors
referred to in Sections 6 and 7 any legal or equitable right, remedy or claim
under, or in respect of, this Agreement or any provision herein contained, this
Agreement and all conditions and provisions hereof being intended to be and
being for the sole and exclusive benefit of the parties hereto and their
respective executors, administrators, successors, assigns and such controlling
persons, officers and directors, and for the benefit of no other person or
corporation.  No purchaser of any Shares from the Underwriters shall be
construed a successor or assign merely by reason of such purchase.

         14.  GOVERNING LAW.

         This Agreement shall be construed and enforced in accordance with the
laws of the State of Minnesota without regard to its conflict of law provisions.


                                         -32-

<PAGE>

         If the foregoing is in accordance with your understanding of our 
agreement, kindly sign and return to us the enclosed counterpart of this
Agreement, whereupon it will become a binding agreement between the Company and
each of the Underwriters in accordance with its terms.

                                  Very truly yours,

                                  ADVANCED UROSCIENCE, INC.


                                  __________________________
                                  By:
                                    Its:


The foregoing Underwriting Agreement is
hereby confirmed and accepted by us for
ourselves and as Representatives of the 
Underwriters referred to in the foregoing 
Agreement as of the date first above written.

JOHN G.  KINNARD AND COMPANY, 
    INCORPORATED
PENNSYLVANIA MERCHANT 
   GROUP LTD

By: John G. Kinnard and Company, Incorporated


__________________________
By:
  Its:


                                         -33-

<PAGE>

                                      SCHEDULE I



NAME OF UNDERWRITER                    NUMBER OF FIRM SHARES
- -------------------                    ---------------------

John G. Kinnard and     
    Company, Incorporated

Pennsylvania Merchant Group Ltd


         
     Total                             1,500,000
                                       ---------
                                       ---------


                                         -34-

<PAGE>

                                     SCHEDULE II

           Schedule of Shareholders Required to Execute Lock-up Agreements

         Total
         Lock-up Shares

Investor Name                      Number of Shares      
- -------------                ----------------------------


                                         -35-

<PAGE>

                                                                APPENDIX A


                                       WARRANT

                            TO PURCHASE 150,000 SHARES OF
                                   COMMON STOCK OF

                              ADVANCED UROSCIENCE, INC.

THIS CERTIFIES THAT, for good and valuable consideration received, [John G. 
Kinnard and Company, Incorporated/Pennsylvania Merchant Group Ltd] (the
"Representative"), or its registered assigns, is entitled to subscribe for and
purchase from Advanced UroScience, Inc., a Minnesota corporation (the
"Company"), at any time after August __, 1997 (one year after Effective Date as
defined in the Underwriting Agreement), up to and including August __, 2001,
[150,000] fully paid and nonassessable shares of the Common Stock of the Company
at the price of $___ per share (the "Warrant Exercise Price"), subject to the
antidilution provisions, and to the provisions of Section 10, of this Warrant. 
Reference is made to this Warrant in the Underwriting Agreement dated August __,
1996, by and between the Company and the Representatives.  The shares which may
be acquired upon exercise of this Warrant are referred to herein as the "Warrant
Shares." As used herein, the term "Holder" means the Representatives, any party
who acquires all or a part of this Warrant as a registered transferee of the
Representatives, or any record holder or holders of the Warrant Shares issued
upon exercise, whether in whole or in part, of the Warrant; and the term "Common
Stock" means and includes the Company's presently authorized common stock, no
par value, and shall also include any capital stock of any class of the Company
hereafter authorized which shall not be limited to a fixed sum or percentage in
respect of the rights of the holders thereof to participate in dividends or in
the distribution of assets upon the voluntary or involuntary liquidation,
dissolution, or winding up of the Company.

    This Warrant is subject to the following provisions, terms and conditions:

         1.   EXERCISE; TRANSFERABILITY.

         (a)  The rights represented by this Warrant may be exercised by the
    Holder hereof, in whole or in part (but not as to a fractional share of
    Common Stock), by written notice of exercise (in the form attached hereto)
    delivered to the Company at the principal office of the Company prior to
    the expiration of this Warrant and accompanied or preceded by the surrender
    of this Warrant along with a check in payment of the Warrant Exercise Price
    for such shares or without payment of cash pursuant to Section 10 hereof.

         (b)  This Warrant may not be sold, assigned, hypothecated, or
    otherwise transferred, other than by will or pursuant to the operation of
    law, 


                                         A-1

<PAGE>

    except to a person who is an officer of the Representatives.  Further, this
    Warrant may not be sold, transferred, assigned, hypothecated or divided
    into two or more Warrants of smaller denominations, nor may any Warrant
    Shares issued pursuant to exercise of this Warrant be transferred, except
    as provided in Section 7 hereof.

         2.   EXCHANGE AND REPLACEMENT.

         Subject to Sections 1 and 7 hereof, this Warrant is exchangeable upon
the surrender hereof by the Holder to the Company at its principal office for
new Warrants of like tenor representing in the aggregate the right to purchase
the number of Warrant Shares purchasable hereunder, each of such new Warrants to
represent the right to purchase such number of Warrant Shares (not to exceed the
aggregate total number purchasable hereunder) as shall be designated by the
Holder at the time of such surrender.  Upon receipt by the Company of evidence
reasonably satisfactory to it of the loss, theft, destruction, or mutilation of
this Warrant, and, in case of loss, theft or destruction, of indemnity or
security reasonably satisfactory to it, and upon surrender and cancellation of
this Warrant, if mutilated, the Company will make and deliver a new Warrant of
like tenor, in lieu of this Warrant; provided, however, that if the
Representatives shall be such Holder, an agreement of indemnity by such Holder
shall be sufficient for all purposes of this Section 2.  This Warrant shall be
promptly canceled by the Company upon the surrender hereof in connection with
any exchange or replacement.  The Company shall pay all expenses, taxes (other
than stock transfer taxes), and other charges payable in connection with the
preparation, execution, and delivery of Warrants pursuant to this Section 2.

         3.   ISSUANCE OF THE WARRANT SHARES.

         (a)  The Company agrees that the shares of Common Stock purchased
    hereby shall be and are deemed to be issued to the Holder as of the close
    of business on the date on which this Warrant shall have been surrendered
    and the payment made for such Warrant Shares as aforesaid.  Subject to the
    provisions of the next section, certificates for the Warrant Shares so
    purchased shall be delivered to the Holder within a reasonable time, not
    exceeding fifteen (15) days after the rights represented by this Warrant
    shall have been so exercised, and, unless this Warrant has expired, a new
    Warrant representing the right to purchase the number of Warrant Shares, if
    any, with respect to which this Warrant shall not then have been exercised
    shall also be delivered to the Holder within such time.

         (b)  Notwithstanding the foregoing, however, the Company shall not be
    required to deliver any certificate for Warrant Shares upon exercise of
    this Warrant except in accordance with exemptions from the applicable
    securities registration requirements or registrations under applicable
    securities laws.  Nothing herein, however, shall obligate the Company to


                                         A-2

<PAGE>

    effect registrations under federal or state securities laws, except as
    provided in Section 9.  If registrations are not in effect and if
    exemptions are not available when the Holder seeks to exercise the Warrant,
    the Warrant exercise period will be extended, if need be, to prevent the
    Warrant from expiring, until such time as either registrations become
    effective or exemptions become available, and the Warrant shall then remain
    exercisable for a period of at least 45 calendar days from the date the
    Company delivers to the Holder written notice of the availability of such
    registrations or exemptions.  The Holder agrees to execute such documents
    and make such representations, warranties, and agreements as may be
    required solely to comply with the exemptions relied upon by the Company,
    or the registrations made for the issuance of the Warrant Shares.

         4.   COVENANTS OF THE COMPANY.  

         The Company covenants and agrees that all Warrant Shares will, upon
issuance, be duly authorized and issued, fully paid, nonassessable, and free
from all taxes, liens, and charges with respect to the issue thereof.  The
Company further covenants and agrees that during the period within which the
rights represented by this Warrant may be exercised, the Company will at all
times have authorized and reserved for the purpose of issue or transfer upon
exercise of the subscription rights evidenced by this Warrant a sufficient
number of shares of Common Stock to provide for the exercise of the rights
represented this Warrant.

         5.   ANTIDILUTION ADJUSTMENTS.  

         The provisions of this Warrant are subject to adjustment as provided
in this Section 5.

         (a)  The Warrant Exercise Price shall be adjusted from time to time
    such that in case the Company shall hereafter:

              (i)       pay any dividends on any class of stock of the Company
         payable in Common Stock or securities convertible into Common Stock;

              (ii)      subdivide its then outstanding shares of Common Stock
         into a greater number of shares; or

              (iii)     combine outstanding shares of Common Stock, by
         reclassification or otherwise;

    then, in any such event, the Warrant Exercise Price in effect immediately
    prior to such event shall (until adjusted again pursuant hereto) be
    adjusted immediately after such event to a price determined by dividing (a)
    the total number of shares of Common Stock outstanding immediately prior to
    such 


                                         A-3

<PAGE>

    event (including the maximum number of shares of Common Stock issuable in
    respect of any securities convertible into Common Stock), multiplied by the
    then existing Warrant Exercise Price, by (b) the total number of shares of
    Common Stock outstanding immediately after such event (including the
    maximum number of shares of Common Stock issuable in respect of any
    securities convertible into Common Stock), and the resulting quotient shall
    be the adjusted Warrant Exercise Price per share.  An adjustment made
    pursuant to this subsection shall become effective immediately after the
    record date in the case of a dividend or distribution and shall become
    effective immediately after the effective date in the case of a
    subdivision, combination or reclassification.  If, as a result of an
    adjustment made pursuant to this subsection, the Holder of any Warrant
    thereafter surrendered for exercise shall become entitled to receive shares
    of two or more classes of capital stock or shares of Common Stock and other
    capital stock of the Company, the Board of Directors (whose determination
    shall be conclusive) shall determine the allocation of the adjusted Warrant
    Exercise Price between or among shares of such classes of capital stock or
    shares of Common Stock and other capital stock.  All calculations under
    this subsection shall be made to the nearest cent.  In the event that at
    any time as a result of an adjustment made pursuant to this subsection, the
    holder of any Warrant thereafter surrendered for exercise shall become
    entitled to receive any shares of the Company other than shares of Common
    Stock, the Warrant Exercise Price of such other shares so receivable upon
    exercise of any Warrant shall be subject to adjustment from time to time in
    a manner and on terms as nearly equivalent as practicable to the provisions
    with respect to Common Stock contained in this Section.

         (b)  Upon each adjustment of the Warrant Exercise Price pursuant to
    Section 5(a) above, the Holder of each Warrant shall thereafter (until
    another such adjustment) be entitled to purchase at the adjusted Warrant
    Exercise Price the number of shares, calculated to the nearest full share,
    obtained by multiplying the number of shares specified in such Warrant (as
    adjusted as a result of all adjustments in the Warrant Exercise Price in
    effect prior to such adjustment) by the Warrant Exercise Price in effect
    prior to such adjustment and dividing the product so obtained by the
    adjusted Warrant Exercise Price.

         (c)  In case of any consolidation or merger to which the Company is a
    party other than a merger or consolidation in which the Company is the
    continuing corporation, or in case of any sale or conveyance to another
    corporation of the property of the Company as an entirety or substantially
    as an entirety, or in the case of any statutory exchange of securities with
    another corporation (including any exchange effected in connection with a
    merger of a third corporation into the Company), there shall be no
    adjustment under subsection (a) of this Section above but the Holder of
    each Warrant then outstanding shall have the right thereafter to convert
    such Warrant into the kind and amount of shares of stock and other
    securities and property which 


                                         A-4

<PAGE>

    he would have owned or have been entitled to receive immediately after such
    consolidation, merger, statutory exchange, sale, or conveyance had such
    Warrant been converted immediately prior to the effective date of such
    consolidation, merger, statutory exchange, sale, or conveyance and in any
    such case, if necessary, appropriate adjustment shall be made in the
    application of the provisions set forth in this Section with respect to the
    rights and interests thereafter of any Holders of the Warrant, to the end
    that the provisions set forth in this Section shall thereafter
    correspondingly be made applicable, as nearly as may reasonably be, in
    relation to any shares of stock and other securities and property
    thereafter deliverable on the exercise of the Warrant.  The provisions of
    this subsection shall similarly apply to successive consolidations,
    mergers, statutory exchanges, sales or conveyances.

         (d)  Upon any adjustment of the Warrant Exercise Price, then and in
    each such case, the Company shall give written notice thereof, by first-
    class mail, postage prepaid, addressed to the Holder as shown on the 
    books of the Company, which notice shall state the Warrant Exercise 
    Price resulting from such adjustment and the increase or decrease, if 
    any, in the number of shares of Common Stock purchasable at such 
    adjusted Warrant Exercise Price upon the exercise of this Warrant, 
    setting forth in reasonable detail the method of calculation and the 
    facts upon which such calculation is based.

         6.   NO VOTING RIGHTS. 

         This Warrant shall not entitle the Holder to any voting rights or
other rights as a shareholder of the Company.

         7.   NOTICE OF TRANSFER OF WARRANT OR RESALE OF THE WARRANT SHARES.

         (a)  Subject to the sale, assignment, hypothecation, or other transfer
    restriction set forth in Section 1 hereof, the Holder, by acceptance
    hereof, agrees to give written notice to the Company before transferring
    this Warrant or transferring any Warrant Shares of such Holder's intention
    to do so, describing briefly the manner of any proposed transfer.  Promptly
    upon receiving such written notice, the Company shall present copies
    thereof to the Company's counsel and to counsel to the original purchaser
    of this Warrant.  If in the opinion of each such counsel the proposed
    transfer may be effected without registration or qualification (under any
    federal or state securities laws), the Company, as promptly as practicable,
    shall notify the Holder of such opinion, whereupon the Holder shall be
    entitled to transfer this Warrant or to dispose of Warrant Shares received
    upon the previous exercise of this Warrant, all in accordance with the
    terms of the notice delivered by the Holder to the Company; provided that
    an appropriate legend may be endorsed on this Warrant or the certificates
    for such Warrant Shares respecting restrictions upon transfer thereof
    necessary or advisable in the opinion of counsel and satisfactory to the
    Company to prevent further 


                                         A-5

<PAGE>

    transfers which would be in violation of Section 5 of the Securities Act of
    1933, as amended (the "1933 Act"), and applicable state securities laws;
    and provided further that the prospective transferee or purchaser shall
    execute such documents and make such representations, warranties, and
    agreements as may be required solely to comply with the exemptions relied
    upon by the Company for the transfer or disposition of the Warrant or
    Warrant Shares.

         (b)  If in the opinion of either of the counsel referred to in this
    Section 7, the proposed transfer or disposition of this Warrant or such
    Warrant Shares described in the written notice given pursuant to this
    Section 7 may not be effected without registration or qualification of this
    Warrant or such Warrant Shares, the Company shall promptly give written
    notice thereof to the Holder and the Holder will limit its activities in
    respect to this Warrant or such Warrant shares to such activities as, in
    the opinion of both such counsel, are permitted by law.

         8.   FRACTIONAL SHARES.  

         Fractional shares shall not be issued upon the exercise of this
Warrant, but in any case where the Holder would, except for the provisions of
this Section, be entitled under the terms hereof to receive a fractional share,
the Company shall, upon the exercise of this Warrant for the largest number of
whole shares then called for, pay a sum in cash equal to the sum of (a) the
excess, if any, of the Market Price on the date of exercise of such fractional
share over the proportional part of the Warrant Exercise Price represented by
such fractional share, plus (b) the proportional part of the Warrant Exercise
Price represented by such fractional share.  For purposes of this Section, the
term "Market Price" as of a particular date with respect to shares of Common
Stock of any class or series means the last reported sale price on such date or,
if none, the average of the last reported closing bid and asked prices on any
national securities exchange or quoted in the National Association of Securities
Dealers, Inc.'s Automated Quotations System (Nasdaq), or if not listed on a
national securities exchange or quoted in Nasdaq, the average of the last
reported closing bid and asked prices as reported by Metro Data Company, Inc.
from quotations by market makers in such Common Stock on the Minneapolis-St.Paul
local over-the-counter market.

         9.   REGISTRATION RIGHTS.

         (a)  If at any time after August __, 1997, and prior to the end of the
    two-year period following complete exercise of this Warrant or August __,
    2003, whichever occurs earlier, the Company proposes to register under the
    1933 Act (except by a Form S-4 or Form S-8 Registration Statement or any
    successor forms thereto or such other form as would not allow the
    registration of such shares) or qualify for a public distribution under
    Section 3(b) of the 1933 Act, any of its equity securities or debt with
    equity features, it will give written notice to all Holders of this
    Warrant, any Warrants issued 



                                         A-6

<PAGE>

    pursuant to Section 2 and/or Section 3(a) hereof, and any Warrant Shares of
    its intention to do so and, on the written request of any such Holder given
    within twenty (20) days after receipt of any such notice (which request
    shall specify the interest in the Warrant Shares intended to be sold or
    disposed of by such Holder and describe the nature of any proposed sale or
    other disposition thereof), the Company will use its best efforts to cause
    all such Warrant Shares, the Holders of which shall have requested the
    registration or qualification thereof, to be included in such registration
    statement proposed to be filed by the Company; provided, however, that if a
    greater number of Warrant Shares is offered for participation in the
    proposed offering than in the reasonable opinion of the managing
    underwriter of the proposed offering can be accommodated without adversely
    affecting the proposed offering, then the amount of Warrant Shares proposed
    to be offered by such Holders for registration, as well as the number of
    securities of any other selling shareholders participating in the
    registration, shall be proportionately reduced to a number deemed
    satisfactory by the managing underwriter.

         (b)  On a one-time basis during the four-year period commencing August
    __, 1997 (one year after the Effective Date as defined in the Underwriting
    Agreement), upon request by the Holder or Holders of a majority in interest
    of this Warrant, of any Warrants issued pursuant to Section 2 and/or
    Section 3(a) hereof, and of any Warrant Shares, the Company will promptly
    take all necessary steps to register on Form S-3 under the 1933 Act (if
    such Form is then available to the Company) and the securities laws of such
    states as the Holders may reasonably request, the number of Warrant Shares
    issued and to be issued upon exercise of the Warrants requested by such
    Holders in their request to the Company.  The Company shall keep effective
    and maintain any registration, qualification, notification, or approval
    specified in this subparagraph (b) for such period (not to exceed 9 months)
    as may be reasonably necessary for such Holder or Holders of such Warrant
    Shares to dispose thereof and from time to time shall amend or supplement
    the prospectus used in connection therewith to the extent necessary in
    order to comply with applicable law.

         (c)  With respect to each inclusion of securities in a registration
    statement pursuant to this Section 9, the Company shall bear the following
    fees, costs, and expenses: all registration, filing and NASD fees, Nasdaq
    fees, printing expenses, fees and disbursements of counsel and accountants
    for the Company, fees and disbursements of counsel for the underwriter or
    underwriters of such securities (if the offering is underwritten and the
    Company is otherwise required to bear such fees and disbursements), all
    internal expenses, the premiums and other costs of policies of insurance
    against liability arising out of the public offering, and legal fees and
    disbursements and other expenses of complying with state securities laws of
    any jurisdictions in which the securities to be offered are to be
    registered or qualified.  Fees and disbursements of special counsel and
    accountants for the 


                                         A-7

<PAGE>

    selling Holders, underwriting discounts and commissions, and transfer 
    taxes for selling Holders and any other expenses relating to the sale of 
    securities by the selling Holders not expressly included above shall be 
    borne by the selling Holders.

         (d)  The Company hereby indemnifies each of the Holders of any Warrant
    Shares included in any such registration, and the officers and directors,
    if any, who control such Holders, within the meaning of Section 15 of the
    1933 Act, against all losses, claims, damages, and liabilities caused by
    (1) any untrue statement or alleged untrue statement of a material fact
    contained in any Registration Statement or Prospectus (and as amended or
    supplemented if the Company shall have furnished any amendments thereof or
    supplements thereto), any Preliminary Prospectus or any state securities
    law filings; (2) any omission or alleged omission to state therein a
    material fact required to be stated therein or necessary to make the
    statements therein not misleading, except insofar as such losses, claims,
    damages, or liabilities are caused by any untrue statement or omission
    contained in information furnished in writing to the Company by such Holder
    or any underwriter expressly for use therein; and each such Holder by its
    acceptance hereof severally agrees that it will indemnify and hold harmless
    the Company, each of its directors, each of its officers who signs such
    Registration Statement, and each person, if any, who controls the Company,
    within the meaning of Section 15 of the 1933 Act, with respect to losses,
    claims, damages, or liabilities which are caused by any untrue statement or
    omission contained in information furnished in writing to the Company by
    such Holder expressly for use therein.


         10.  ADDITIONAL RIGHT TO CONVERT WARRANT.

         (a)  The Holder of this Warrant shall have the right to require the
    Company to convert this Warrant (the "Conversion Right") at any time after
    it is exercisable, but prior to its expiration, into shares of Company
    Common Stock as provided for in this Section 10.  Upon exercise of the
    Conversion Right, the Company shall deliver to the Holder (without payment
    by the Holder of any Warrant Exercise Price) that number of shares of
    Company Common Stock equal to the quotient obtained by dividing (x) the
    value of the Warrant at the time the Conversion Right is exercised
    (determined by subtracting the Warrant Exercise Price for a Warrant Share
    in effect immediately prior to the exercise of the Conversion Right from
    the Fair Market Value of a Warrant Share immediately prior to the date of
    the exercise of the Conversion Right and multiplying that number by the
    number of Warrant Shares for which the Conversion Right is being exercised)
    by (y) the Fair Market Value of a Warrant Share immediately prior to the
    exercise of the Conversion Right.

                                         A-8



<PAGE>
 COMMON SHARES                                                    COMMON SHARES
 
                                     [LOGO]
 
                           ADVANCED UROSCIENCE, INC.
             INCORPORATED UNDER THE LAWS OF THE STATE OF MINNESOTA
 
                                            SEE REVERSE FOR CERTAIN DEFINITIONS 
                                                     CUSIP 00756X 10 3          
THIS CERTIFIES THAT
 
IS THE OWNER OF
          FULLY PAID AND NON-ASSESSABLE SHARES OF THE COMMON STOCK OF
 
- ------------------------                                 -----------------------
- ------------------------    ADVANCED UROSCIENCE, INC.    -----------------------
- ------------------------                                 -----------------------

TRANSFERABLE  ON THE BOOKS OF THE CORPORATION  BY THE HOLDER HEREOF IN PERSON OR
BY  ATTORNEY  UPON  SURRENDER  OF  THIS  CERTIFICATE  PROPERLY  ENDORSED.   THIS
CERTIFICATE IS NOT VALID UNLESS COUNTERSIGNED BY THE TRANSFER AGENT-REGISTRAR.
 
      IN WITNESS WHEREOF, THE SAID CORPORATION HAS CAUSED THIS CERTIFICATE TO BE
SIGNED BY ITS DULY AUTHORIZED OFFICERS.
DATED:

            [SIGNATURE]                                     [SIGNATURE]
 
             SECRETARY                                       PRESIDENT
 
<PAGE>
   The  corporation will furnish to any shareholder, upon request and without
   charge, a full statement of the designations, preferences, limitations and
   relative rights of  the shares of  each class or  series authorized to  be
   issued,  so far  as they  have been determined,  and the  authority of the
   board to  determine  the relative  rights  and preferences  of  subsequent
   classes or series.
 
       The  following abbreviations, when used in the inscription on the face
   of this certificate, shall be construed as though they were written out in
   full according to applicable laws or regulations:
 
<TABLE>
<S>      <C>                                 <C>                   <C>
TEN COM  -- as tenants in common             UNIF GIFT MIN ACT--   _____________Custodian______________
TEN ENT  -- as tenants by the entireties                              (Cust)                 (Minor)
JT TEN   -- as joint tenants with right of                         under Uniform Transfers to Minors
            survivorship and not as                                Act______   ________________________
            tenants in common                                                          (State)
                                             UNIF TRF MIN ACT--    _____________Custodian (until age___)
                                                                      (Cust)
                                                                   _____________under Uniform Transfers
                                                                   to Minors Act_______________________
                                                                                        (State)
</TABLE>
 
    Additional abbreviations may also be used though not in the above list.

For value received_______ hereby sell, assign and transfer unto
 
     PLEASE INSERT SOCIAL SECURITY OR OTHER
         IDENTIFYING NUMBER OF ASSIGNEE
 
     --------------------------------------
 
________________________________________________________________________________
             PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS OF ASSIGNEE
________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________

___________________________________________________________________       Shares

of   the    capital   stock    represented    by   the    within    Certificate,

and   do   hereby   irrevocably   constitute   and   appoint
_______________________________________________________________________ Attorney

to   transfer   the   said   stock   on   the   books   of   the    within-named

Corporation    with   full    power   of    substitution   in    the   premises.

Dated  _____________________________


                         NOTICE: _______________________________________________
        THE SIGNATURE(S) TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME(S)  AS
        WRITTEN  UPON THE  FACE OF THE CERTIFICATE IN EVERY PARTICULAR,  WITHOUT
        ALTERATION  OR  ENLARGEMENT  OR  ANY  CHANGE WHATEVER.
 
SIGNATURE(S) GUARANTEED


By _____________________________________


<PAGE>


                                                          Direct Dial No.
                                                           (612) 347-7111

                                 August 6, 1996


Advanced UroScience, Inc.
1290 Hammond Road
St. Paul, Minnesota  55110

     RE:  REGISTRATION STATEMENT ON FORM SB-2 - EXHIBIT 5.1

Gentlemen/Ladies:

     We have acted as counsel for Advanced UroScience, Inc. (the "Company") 
in connection with the Company's filing of a Registration Statement on Form 
SB-2 (the "Registration Statement") relating to the registration under the 
Securities Act of 1933 (the "Act") of 1,725,000 shares of Common Stock, 
including 225,000 shares subject to an over-allotment option (the "Shares").

     In connection with rendering this opinion, we have reviewed the 
following:

     1.   The Company's Articles of Incorporation;

     2.   The Company's Bylaws; and

     3.   Certain corporate resolutions, including resolutions of the Company's
          Board of Directors pertaining to the issuance by the Company of the
          Shares covered by the Registration Statement.

     Based upon the foregoing and upon representations and information 
provided by the Company, we hereby advise you that in our opinion:

     1.   The Company's Articles of Incorporation validly authorize the issuance
          of the Shares registered pursuant to the Registration Statement.

     2.   Upon the delivery and payment therefor in accordance with the terms of
          the Registration Statement and the Underwriting Agreement described in
          the Registration Statement, the Shares to be issued and sold by the
          Company will be validly issued, fully paid and nonassessable.

<PAGE>


August 6, 1996
Page 2


     We hereby consent to the filing of this opinion as an exhibit to the 
Registration Statement and to the reference to our firm under the caption 
"Legal Matters" included in the Registration Statement and the related 
Prospectus.

                                   Very truly yours,

                                   FREDRIKSON & BYRON, P.A.

                                   By  /s/ Dobson West
                                      -------------------------------
                                          Dobson West

- ---------

564087/DH


<PAGE>
                            ADVANCED UROSCIENCE, INC.

                             1996 STOCK OPTION PLAN


                                   SECTION 1.

                                   DEFINITIONS

     As used herein, the following terms shall have the meanings indicated
below:

     (a)  "Affiliates" shall mean a Parent or Subsidiary of the Company.

     (b)  "Board" shall mean the Board of Directors of the Company.

     (c)  "Committee" shall mean a Committee of two or more directors who shall
     be appointed by and serve at the pleasure of the Board.  In the event the
     Company's securities are registered pursuant to Section 12 of the
     Securities Exchange Act of 1934, as amended, each of the members of the
     Committee shall be a "disinterested" person within the meaning of Rule
     16b-3, or any successor provision, as then in effect, of the General Rules
     and Regulations under the Securities Exchange Act of 1934 as amended.  As
     of the effective date of the Plan, a "disinterested" person under Rule
     16b-3 generally means a person who, among other things, has not been, at
     any time within one year prior to his or her appointment to the Committee
     (or, if shorter, during the period beginning with the initial registration
     of the Company's equity securities under Section 12 of the Securities
     Exchange Act of 1934, as amended, and ending with the director's
     appointment to the Committee) and who will not be, while serving on such
     Committee, granted or awarded options under the Plan, or under any other
     plan of the Company or any of its Affiliates entitling participants to
     acquire stock, stock options, stock appreciation rights or similar rights
     that have an exercise or conversion privilege or a value derived from
     equity securities issued by the Company or its Affiliate, except to the
     extent permitted by Rule 16b-3, or any successor provision.

     (d)  "Common Stock" shall mean common stock of the Company.

     (e)  The "Company" shall mean Advanced UroScience, Inc., a Minnesota
     corporation.

     (f)  "Director" shall mean a member of the Board of Directors.

     (g)  "Fair Market Value" of the Common Stock as of any applicable date
     shall mean:  (i) if such stock is reported in the national market system or
     is listed upon an established exchange or exchanges, the reported closing
     price of such stock in such national market system or on such stock
     exchange or exchanges on the date the option is granted or, if no sale of
     such stock shall have occurred on that date, on the next preceding day on
     which there was a sale of stock; (ii) if such stock is not so reported in
     the national market system or listed upon an exchange, the average of the
     closing "bid" and "asked" prices quoted by a recognized specialist in the
     Common Stock of the Company on the date the option is granted, or if there
     are no quoted "bid" and "asked" prices on such date, on the next preceding
     date for which there are such quotes; or (iii) if such stock is not
     publicly traded as of the date the option is



<PAGE>
     granted, the per share value as determined by the Board, or the Committee,
     in its sole discretion by applying principles of valuation with respect to
     all such options.

     (h)  The "Internal Revenue Code" is the Internal Revenue Code of 1986, as
     amended from time to time.

     (i)  "Option Agreement" shall mean a written stock option agreement
     evidencing an option granted under the Plan.
     
     (j)  "Option Stock" shall mean Common Stock (subject to adjustment as
     described in Section 13) reserved for options pursuant to this Plan.
     
     (k)  "Parent" shall mean any corporation which owns, directly or indirectly
     in an unbroken chain, fifty percent (50%) or more of the total voting power
     of the Company's outstanding stock.

     (l)  The "Plan" means the Advanced UroScience, Inc. 1996 Stock Option Plan,
     as amended hereafter from time to time, including the form of Option
     Agreements as they may be modified by the Board from time to time.

     (m)  A "Subsidiary" shall mean any corporation of which fifty percent (50%)
     or more of the total voting power of outstanding stock is owned, directly
     or indirectly in an unbroken chain, by the Company.


                                   SECTION 2.

                                     PURPOSE

     The purpose of the Plan is to promote the success of the Company and its
Subsidiaries by facilitating the employment and retention of competent personnel
and by furnishing incentive to officers, directors, employees, consultants and
advisors upon whose efforts the success of the Company and its Subsidiaries will
depend to a large degree.

     It is the intention of the Company to carry out the Plan through the
granting of stock options which will qualify as "incentive stock options" under
the provisions of Section 422 of the Internal Revenue Code, or any successor
provision, and through the granting of "non- qualified stock options" pursuant
to Sections 10 and 11 of this Plan.  Adoption of this Plan shall be and is
expressly subject to the condition of approval by the shareholders of the
Company within twelve (12) months after the adoption of the Plan by the Board. 
In no event shall any stock options be exercisable prior to the date this Plan
is approved by the shareholders of the Company.  If shareholder approval of this
Plan is not obtained within twelve (12) months after the adoption of the Plan by
the Board, any stock options previously granted shall be revoked.


                                   SECTION 3.


                                      -2-

<PAGE>

                             EFFECTIVE DATE OF PLAN

     The Plan shall be effective upon its adoption by the Board, subject to
approval by the shareholders of the Company as required in Section 2.


                                   SECTION 4.

                                 ADMINISTRATION

     The Plan shall be administered by the Committee if one is in existence or
if not, by the Board.  The Board or the Committee, as the case may be, shall
have all of the powers vested in it under the provisions of the Plan, including
but not limited to exclusive authority (where applicable and within the
limitations described herein) to determine, in its sole discretion, whether an
incentive stock option or nonqualified stock option shall be granted, the
individuals to whom, and the time or times at which, options shall be granted,
the number of shares subject to each option and the option price and terms and
conditions of each option.  The Board, or the Committee, shall have full power
and authority to administer and interpret the Plan, to make and amend rules,
regulations and guidelines for administering the Plan, to prescribe the form and
conditions of the respective stock option agreements (which may vary from
optionee to optionee) evidencing each option and to make all other
determinations necessary or advisable for the administration of the Plan.  The
Board's, or the Committee's, interpretation of the Plan, and all actions taken
and determinations made by the Board or the Committee pursuant to the power
vested in it hereunder, shall be conclusive and binding on all parties
concerned.  No member of the Board or the Committee shall be liable for any
action taken or determination made in good faith in connection with the
administration of the Plan.

     In the event the Board appoints a Committee as provided hereunder, any
action of the Committee with respect to the administration of the Plan shall be
taken pursuant to a majority vote of the Committee members or pursuant to the
written resolution of all Committee members.


                                   SECTION 5.

                                  PARTICIPANTS

     The Board or the Committee, as the case may be, shall from time to time, at
its discretion and without approval of the shareholders, designate those
employees, directors, officers, consultants, and advisors of the Company or of
any Subsidiary to whom nonqualified stock options shall be granted under this
Plan; provided, however, that consultants or advisors shall not be eligible to
receive stock options hereunder unless such consultant or advisor renders bona
fide services to the Company or Subsidiary and such services are not in
connection with the offer or sale of securities in a capital-raising
transaction; provided, further, that a Director, other than a Director who is
also an employee of the Company, shall only be eligible to receive nonqualified
stock options pursuant to Section 11.  The Board or the Committee, as the case
may be, shall, from time to time, at its discretion and without approval of the
shareholders, designate those employees of the Company or any Subsidiary to whom
incentive stock options shall be granted under this Plan.  The Board or the
Committee may


                                      -3-

<PAGE>
grant additional incentive stock options or nonqualified stock options under 
this Plan to some or all participants then holding options or may grant 
options solely or partially to new participants.  In designating 
participants, the Board or the Committee shall also determine the number of 
shares to be optioned to each such participant.  The Board may from time to 
time designate individuals as being ineligible to participate in the Plan.


                                   SECTION 6.

                                      STOCK

     The Stock to be optioned under this Plan shall consist of authorized but
unissued shares of Option Stock.  Five Hundred Thousand (500,000) shares of
Option Stock shall be reserved and available for options under the Plan;
provided, however, that the total number of shares of Option Stock reserved for
options under this Plan shall be subject to adjustment as provided in Section 13
of the Plan.  In the event that any outstanding option under the Plan for any
reason expires or is terminated prior to the exercise thereof, the shares of
Option Stock allocable to the unexercised portion of such option shall continue
to be reserved for options under the Plan and may be optioned hereunder.


                                   SECTION 7.

                                DURATION OF PLAN

     Incentive stock options may be granted pursuant to the Plan from time to
time during a period of ten (10) years from the effective date as defined in the
Plan.  Nonqualified stock options may be granted pursuant to the Plan from time
to time after the effective date of the Plan and until the Plan is discontinued
or terminated by the Board.


                                   SECTION 8.

                                     PAYMENT

     Optionees may pay for shares upon exercise of options granted pursuant to
this Plan with cash, certified check, Common Stock of the Company valued at such
stock's then Fair Market Value, or such other form of payment as may be
authorized by the Board or the Committee.  The Board or the Committee may, in
its sole discretion, limit the forms of payment available to the optionee and
may exercise such discretion any time prior to the termination of the option
granted to the optionee or upon any exercise of the option by the optionee.



                                      -4-

<PAGE>


                                   SECTION 9.

                 TERMS AND CONDITIONS OF INCENTIVE STOCK OPTIONS

     Each incentive stock option granted pursuant to the Plan shall be evidenced
by an Option Agreement.  The Option Agreement shall be in such form as may be
approved from time to time by the Board or Committee and may vary from optionee
to optionee; provided, however, that each inactive stock option granted under
this Plan and each related Option Agreement shall comply with and be subject to
the following terms and conditions:

     (a)  NUMBER OF SHARES AND OPTION PRICE.  The Option Agreement shall state
     the total number of shares covered by the incentive stock option.  To the
     extent required to qualify the option as an incentive stock option under
     Section 422 of the Internal Revenue Code, or any successor provision, the
     option price per share shall not be less than one hundred percent (100%) of
     the Fair Market Value of the Common Stock per share on the date the Board
     or the Committee, as the case may be, grants the option; provided, however,
     that if an optionee owns stock possessing more than ten percent (10%) of
     the total combined voting power of all classes of stock of the Company or
     of its Parent or any Subsidiary, the option price per share of an incentive
     stock option granted to such optionee shall not be less than one hundred
     ten percent (110%) of the Fair Market Value of the Common Stock per share
     on the date of the grant of the option.  The Board or the Committee, as the
     case may be, shall have full authority and discretion in establishing the
     option price and shall be fully protected in so doing.

     (b)  TERM AND EXERCISABILITY OF INCENTIVE STOCK OPTION.  The term during
     which any incentive stock option granted under the Plan may be exercised
     shall be established in each case by the Board or the Committee, as the
     case may be.  To the extent required to qualify the option as an incentive
     stock option under Section 422 of the Internal Revenue Code, or any
     successor provision, in no event shall any incentive stock option be
     exercisable during a term of more than ten (10) years after the date on
     which it is granted; provided, however, that if an optionee owns stock
     possessing more than ten percent (10%) of the total combined voting power
     of all classes of stock of the Company or of its Parent or any Subsidiary,
     the incentive stock option granted to such optionee shall be exercisable
     during a term of not more than five (5) years after the date on which it is
     granted.  The Option Agreement shall state when the incentive stock option
     becomes exercisable and shall also state the maximum term during which the
     option may be exercised.  In the event an incentive stock option is
     exercisable immediately, the manner of exercise of the option in the event
     it is not exercised in full immediately shall be specified in the Option
     Agreement.  The Board or the Committee, as the case may be, may accelerate
     the exercise date of any incentive stock option granted hereunder which is
     not immediately exercisable as of the date of grant.

     (c)  OTHER PROVISIONS.  The Option Agreement authorized under this Section
     9 shall contain such other provisions as the Board or the Committee, as the
     case may be, shall deem advisable.  Any such Option Agreement shall contain
     such limitations and restrictions upon the exercise of the option as shall
     be necessary to ensure that such option will be considered


                                      -5-

<PAGE>


     an "incentive stock option" as defined in Section 422 of the Internal 
     Revenue Code or to conform to any change therein.


                                   SECTION 10.

               TERMS AND CONDITIONS OF NONQUALIFIED STOCK OPTIONS

     Each nonqualified stock option granted pursuant to the Plan shall be
evidenced by an Option Agreement.  The Option Agreement shall be in such form as
may be approved from time to time by the Board or the Committee and may vary
from optionee to optionee; provided, however, that each nonqualified option
granted under this Section 10 and each related Option Agreement shall comply
with and be subject to the following terms and conditions:

     (a)  NUMBER OF SHARES AND OPTION PRICE.  The Option Agreement shall state
     the total number of shares covered by the nonqualified stock option. 
     Unless otherwise determined by the Board or the Committee, as the case may
     be, the option price per share shall be one hundred percent (100%) of the
     Fair Market Value of the Common Stock per share on the date the Board or
     the Committee grants the option.

     (b)  TERM AND EXERCISABILITY OF NONQUALIFIED STOCK OPTION.  The term during
     which any nonqualified stock option granted under the Plan may be exercised
     shall be established in each case by the Board or the Committee, as the
     case may be.  The Option Agreement shall state when the nonqualified stock
     option becomes exercisable and shall also state the maximum term during
     which the option may be exercised.  In the event a nonqualified stock
     option is exercisable immediately, the manner of exercise of the option in
     the event it is not exercised in full immediately shall be specified in the
     stock option agreement.  The Board or the Committee, as the case may be,
     may accelerate the exercise date of any nonqualified stock option granted
     hereunder which is not immediately exercisable as of the date of grant.

     (c)  WITHHOLDING.  The Company or its Subsidiary shall be entitled to
     withhold and deduct from future wages of the optionee all legally required
     amounts necessary to satisfy any and all federal, state and local
     withholding and employment-related taxes attributable to the optionee's
     exercise of a nonqualified stock option.  In the event the optionee is
     required under the Option Agreement to pay the Company, or make
     arrangements satisfactory to the Company respecting payment of, such
     federal, state and local withholding and employment-related taxes, the
     Board or the Committee, as the case may be, may, in its discretion and
     pursuant to such rules as it may adopt, permit the optionee to satisfy such
     obligation, in whole or in part, by electing to have the Company withhold
     shares of Common Stock otherwise issuable to the optionee as a result of
     the option's exercise equal to the amount required to be withheld for tax
     purposes.  Any stock elected to be withheld shall be valued at its Fair
     Market Value, as of the date the amount of tax to be withheld is determined
     under applicable tax law.  The optionee's election to have shares withheld
     for this purpose shall be made on or before the date the option is
     exercised or, if later, the date that the amount of tax to be withheld is
     determined under applicable tax law.  Such election shall also comply with
     such rules as may be adopted by the Board or the Committee to assure
     compliance with Rule


                                      -6-

<PAGE>


     16b-3, or any successor provision, as then in effect, of the General Rules
     and Regulations under the Securities Exchange Act of 1934, if applicable.

     (d)  OTHER PROVISIONS.  The Option Agreement authorized under this Section
     10 shall contain such other provisions as the Board, or the Committee, as
     the case may be, shall deem advisable.


                                   SECTION 11

                    NONQUALIFIED STOCK OPTIONS FOR DIRECTORS

     (a)  GRANT OF NONQUALIFIED STOCK OPTIONS.  All grants of nonqualified stock
     options to Directors under this Section 11 shall be evidenced by an Option
     Agreement.  The Option Agreement shall be in such form as may be approved
     from time to time by the Board or Committee and may vary from optionee to
     optionee; provided, however, that each nonqualified stock option issued to
     a Director other than a Director who is also an employee of the Company
     shall be automatic and nondiscretionary and shall be made strictly in
     accordance with the following provisions:

          (1)  AUTOMATIC GRANTS.  No person shall have any discretion to select
          the Directors that shall be eligible for nonqualified stock options
          pursuant to this Section 11 or to determine the number of shares of
          Common Stock to be subject to such options, the option price per share
          or the date of grant.

          (2)  ANNUAL GRANTS.  Each Director shall, on each anniversary date of
          such Director's most recent election to the Board, be granted a
          nonqualified stock option to purchase Five Thousand (5,000) shares of
          Common Stock so long as such Director continues to serve on the Board.
           
          
     (b)  OPTION PRICE.  The option price per share for all nonqualified stock
     options granted pursuant to Section 11(a) above shall be one hundred
     percent (100%) of the Fair Market Value of a share of Common Stock on the
     date the nonqualified stock option is granted.  

     (c)  DURATION AND EXERCISE OF OPTIONS.

          (1)  DURATION OF OPTIONS.  Except as otherwise provided in this Plan,
               the period during which any nonqualified stock option granted to
               Directors under this Section 11 may be exercised shall be ten
               (10) years after the date that the option is granted.  

          (2)  EXERCISABILITY OF NONQUALIFIED STOCK OPTIONS.

               a.   In no event shall any nonqualified stock options granted to
                    Directors be exercisable prior to the date that the Plan is
                    approved by the shareholders of the Company.  If shareholder
                    approval of the Plan is


                                      -7-

<PAGE>

                    not obtained within twelve (12) months following its 
                    adoption by the Board, any nonqualified stock options 
                    previously granted to Directors shall be revoked.

               b.   All nonqualified stock options granted to Directors pursuant
                    to this Section 11 shall be immediately exercisable subject
                    only to the provisions of Section 11(c)(2)(a).

     (d)  PAYMENT OF OPTION PRICE.  Upon the exercise of any nonqualified stock
          option granted to a Director pursuant to this Section 11, the purchase
          price for such shares of Common Stock subject to such option shall be
          paid in cash or certified check, by the transfer from the Director to
          the Company of previously acquired shares of Common Stock, or any
          combination thereof.  Any Common Stock so transferred shall be valued
          at its fair market value.   For purposes of this Section 11(d),
          "previously acquired shares of Common Stock" shall include shares of
          Common Stock that are already owned by the Director at the time of
          exercise.  

     (e)  COMPLIANCE WITH RULE 16B-3.  All nonqualified stock options granted to
          Directors must comply with the applicable provisions of Rule 16b-3, or
          its successor, of the General Rules and Regulations of the Securities
          Exchange Act of 1934, as amended.  

     (f)  TERMINATION OF STATUS AS A DIRECTOR.  In the event that a Director's
          membership on the Board terminates, the following provisions shall
          apply:

          (1)  If the Director's membership on the Board terminates for any
               reason other than the Director's death, the Director shall be
               entitled to exercise any nonqualified stock option granted to
               such Director pursuant to this Section 11 which were exercisable
               at the time of such termination until the earlier of (i) the
               close of business on the 30th day after such termination, and
               (ii) the expiration of the option as provided in Section 11(c)(1)
               above.  To the extent that the Director does not exercise such
               option within the period specified in this Section 11(f)(1), all
               rights of the Director under such option shall be forfeited.

          (2)  If the Director dies while a member of the Board, any
               nonqualified stock option granted to such Director may be
               exercised by the Director's estate or any person who acquired the
               right to exercise any nonqualified stock option granted to such
               Director pursuant to this Section 11 by bequest or inheritance
               until the earlier of the expiration of the option as provided in
               Section 11(c)(1) above or the close of business one hundred
               eighty (180) days after the date of the Director's death.  


                                      -8-

<PAGE>

                                   SECTION 12

                               TRANSFER OF OPTION

     No incentive stock option shall be transferable, in whole or in part, by
the optionee other than by will or by the laws of descent and distribution and,
during the optionee's lifetime, the incentive stock option may be exercised only
by the optionee.  If the optionee shall attempt any transfer of any incentive
stock option granted under the Plan during the optionee's lifetime, such
transfer shall be void and the incentive stock option, to the extent not fully
exercised, shall terminate.

     The Board or the Committee, as the case may be, may, in its sole
discretion, permit the transfer of a nonqualifed stock option to members of the
optionee's immediate family, to a trust for the benefit of such family members
or to a partnership in which such family members are the only partners.  The
extent to which a nonqualified stock option is transferable shall be set forth
in the Option Agreement evidencing such nonqualified stock option.


                                   SECTION 13.

                    RECAPITALIZATION, SALE, MERGER, EXCHANGE
                                 OR LIQUIDATION

     In the event of an increase or decrease in the number of shares of Common
Stock resulting from a subdivision or consolidation of shares or the payment of
a stock dividend or any other increase or decrease in the number of shares of
Common Stock effected without receipt of consideration by the Company, the
number of shares of Option Stock reserved under Section 6 hereof and the number
of shares of Option Stock covered by each outstanding option and the price per
share thereof shall be adjusted by the Board to reflect such change.  Additional
shares which may be credited pursuant to such adjustment shall be subject to the
same restrictions as are applicable to the shares with respect to which the
adjustment relates.
 
     Unless otherwise provided in the Option Agreement, in the event of the sale
by the Company of substantially all of its assets and the consequent
discontinuance of its business, or in the event of a merger, consolidation,
exchange, reorganization, reclassification, extraordinary dividend, divestiture
(including a spin-off) or liquidation of the Company (collectively referred to
as a "transaction"), the Board may, in connection with the Board's adoption of
the plan for such transaction, provide for one or more of the following:  (i)
the equitable acceleration of the exercisability of any outstanding options
hereunder; (ii) the complete termination of this Plan and cancellation of
outstanding options not exercised prior to a date specified by the Board (which
date shall give optionees a reasonable period of time in which to exercise the
options prior to the effectiveness of such transaction) and (iii) the
continuance of the Plan with respect to the exercise of options which were
outstanding as of the date of adoption by the Board of such plan for such
transaction and provide to optionees holding such options the right to exercise
their respective options as to an equivalent number of shares of stock of the
corporation succeeding the Company by reason of such transaction.  The grant of
an option pursuant to the Plan shall not limit in any way the right or power of
the Company to make adjustments, reclassifications, reorganizations or changes


                                      -9-

<PAGE>

of its capital or business structure or to merge, exchange or consolidate or to
dissolve, liquidate, sell or transfer all or any part of its business or assets.


                                   SECTION 14.

                               INVESTMENT PURPOSE

     No shares of Common Stock shall be issued pursuant to the Plan unless and
until there has been compliance, in the opinion of Company's counsel, with all
applicable legal requirements, including without limitation, those relating to
securities laws and stock exchange listing requirements.  As a condition to the
issuance of Option Stock to the optionee, the Board or the Committee may require
the optionee to (a) represent that the shares of Option Stock are being acquired
for investment and not resale and to make such other representations as the
Board, or the Committee, as the case may be, shall deem necessary or appropriate
to qualify the issuance of the shares as exempt from the Securities Act of 1933
and any other applicable securities laws, and (b) represent that the optionee
shall not dispose of the shares of Option Stock in violation of the Securities
Act of 1933 or any other applicable securities laws.  The Company reserves the
right to place a legend on any stock certificate issued upon exercise of an
option granted pursuant to the Plan to assure compliance with this Section 14.
 

                                   SECTION 15.

                             RIGHTS AS A SHAREHOLDER

     An optionee (or the optionee's successor or successors) shall have no
rights as a shareholder with respect to any shares covered by an option until
the date of the issuance of a stock certificate evidencing such shares.  No
adjustment shall be made for dividends (ordinary or extraordinary, whether in
cash, securities or other property), distributions or other rights for which the
record date is prior to the date such stock certificate is actually issued
(except as otherwise provided in Section 13 of the Plan).


                                   SECTION 16.

                              AMENDMENT OF THE PLAN

     The Board may from time to time, insofar as permitted by law, suspend or
discontinue the Plan or revise or amend it in any respect; provided, however,
that no such revision or amendment, except as is authorized in Section 13, shall
impair the terms and conditions of any option which is outstanding on the date
of such revision or amendment to the material detriment of the optionee without
the consent of the optionee.  Notwithstanding the foregoing, no such revision or
amendment shall (i) materially increase the number of shares subject to the Plan
except as provided in Section 13 hereof, (ii) change the designation of the
class of employees eligible to receive options, (iii) decrease the price at
which options may be granted, or (iv) materially increase the benefits accruing


                                      -10-

<PAGE>

to optionees under the Plan, unless such revision or amendment is approved by
the shareholders of the Company.  Furthermore, the Plan may not, without the
approval of the shareholders, be amended in any manner that will cause incentive
stock options to fail to meet the requirements of Section 422 of the Internal
Revenue Code.  In no event shall the Board or the Committee, either directly or
indirectly, amend the provisions of Section 11 relating to nonqualified stock
options that are granted to Directors more frequently than once every six (6)
months, unless such amendment is required to comply with changes in the Employee
Retirement Income Security Act of 1974, as amended, and the regulations
thereunder, or with the Internal Revenue Code of 1986, and the regulations
thereunder.


                                   SECTION 17.

                        NO OBLIGATION TO EXERCISE OPTION

     The granting of an option shall impose no obligation upon the optionee to
exercise such option.  Further, the granting of an option hereunder shall not
impose upon the Company or any Subsidiary any obligation to retain the optionee
in its employ for any period.




                                      -11-

<PAGE>


                    FORM OF INCENTIVE STOCK OPTION AGREEMENT

                            ADVANCED UROSCIENCE, INC.
                             1996 STOCK OPTION PLAN


     THIS AGREEMENT, made effective as of this ____ day of ____________, 19____,
by and between Advanced UroScience, Inc., a Minnesota corporation (the
"Company"), and _________________________________ ("the Optionee");

                              W I T N E S S E T H:

     WHEREAS, the Optionee on the date hereof is a key employee or officer of
the Company or one of its Subsidiaries; and

     WHEREAS, the Company wishes to grant an incentive stock option to the
Optionee to purchase shares of the Company's Common Stock pursuant to the
Company's 1996 Stock Option Plan (the "Plan"); and

     WHEREAS, the Company's Board of Directors or Stock Option Committee has
authorized the grant of this incentive stock option to the Optionee; 

     NOW, THEREFORE, in consideration of the premises and of the mutual
covenants herein contained, the parties hereto agree as follows:

     1.   GRANT OF OPTION.  The Company hereby grants to the Optionee on the
date set forth above (the "Date of Grant"), the right and option (the "Option")
to purchase all or portions of an aggregate of _______________________________
_____________ (_______________) shares of Common Stock at a per share price of
$________ on the terms and conditions set forth herein, and subject to
adjustment pursuant to Section 13 of the Plan.  This Option is intended to be an
incentive stock option within the meaning of Section 422, or any successor
provision, of the Internal Revenue Code of 1986, as amended (the "Code"), and
the regulations thereunder.

     2.   DURATION AND EXERCISABILITY.

          a.   The term during which this Option may be exercised shall
terminate at the close of business on  ______________, 20__, unless terminated
earlier under the provisions of Paragraphs 4(f) or 4(g) below.  This Option
shall be exercisable as follows:

          NUMBER OF SHARES                   WHEN EXERCISABLE
          ----------------                   ----------------





If the Optionee does not purchase in any option year the full number of shares
which the Optionee is entitled to purchase that year, the Optionee may purchase
in any subsequent option year such previously unpurchased shares in addition to
those the Optionee is otherwise entitled to purchase.


<PAGE>
If this option has been granted prior to approval of the Plan by the 
Company's shareholders, this option shall not be exercisable until such 
approval is obtained.
  
          b.   During the lifetime of the Optionee, the accrued Option shall be
exercisable only by the Optionee or by the Optionee's guardian or other legal
representative, and shall not be assignable or transferable by the Optionee, in
whole or in part, other than by will or by the laws of descent and distribution.

     3.    MANNER OF EXERCISE.

          a.   The Option may be exercised only by the Optionee (or other proper
party in the event of death or incapacity), subject to the conditions of the
Plan and subject to such other administrative rules as the Board of Directors
may deem advisable, by delivering within the option period written notice of
exercise to the Company at its principal office.  The notice shall state the
number of shares as to which the Option is being exercised and shall be
accompanied by payment in full of the option price for all shares designated in
the notice.  The exercise of the Option shall be deemed effective upon receipt
of such notice by the Company and upon payment that complies with the terms of
the Plan and this Agreement.

          b.   Payment of the option price by the Optionee shall be in the form
of cash, certified check or previously acquired shares of Common Stock of the
Company, or any combination thereof; provided, however, that the Board or any
Committee appointed by the Board to administer the Plan may, in its sole
discretion, limit the form of payment to cash or certified check and may
exercise its discretion any time prior to the termination of this Option or upon
any exercise of this Option by the Optionee.  Any stock so tendered as part of
such payment shall be valued at its fair market value as provided in the Plan. 
As soon as practicable after the effective exercise of all or any part of the
Option, the Optionee shall be recorded on the stock transfer books of the
Company as the owner of the shares purchased, and the Company shall deliver to
the Optionee one or more duly issued stock certificates evidencing such
ownership.  All requisite original issue or transfer documentary stamp taxes
shall be paid by the Company.  For purposes of this Agreement, "previously
acquired shares of Common Stock" shall include shares of Common Stock that are
already owned by the Optionee at the time of exercise. 

     4.   MISCELLANEOUS.

          a.   EMPLOYMENT; RIGHTS AS SHAREHOLDER.  This Agreement shall not
confer on the Optionee any right with respect to continuance of employment by
the Company or any of its Subsidiaries, nor will it interfere in any way with
the right of the Company to terminate such employment.  The Optionee shall have
no rights as a shareholder with respect to shares subject to this Option until
such shares have been issued to the Optionee upon exercise of this Option.  No
adjustment shall be made for dividends (ordinary or extraordinary, whether in
cash, securities or other property), distributions or other rights for which the
record date is prior to the date such shares are issued, except as provided in
Section 13 of the Plan.

          b.   SECURITIES LAW COMPLIANCE.  The exercise of all or any parts of
this Option shall only be effective at such time as counsel to the Company shall
have determined that the issuance and delivery of Common Stock pursuant to such
exercise will not violate any state or federal securities or other laws.  The
Optionee may be required by the Company, as a condition of


                                      -13-

<PAGE>

the effectiveness of any exercise of this Option, to agree in writing that 
all Common Stock to be acquired pursuant to such exercise shall be held, 
until such time that such Common Stock is registered and freely tradeable 
under applicable state and federal securities laws, for the Optionee's own 
account without a view to any further distribution thereof, that the 
certificates for such shares shall bear an appropriate legend to that effect 
and that such shares will be not transferred or disposed of except in 
compliance with applicable state and federal securities laws. 

          c.   MERGERS, RECAPITALIZATIONS, STOCK SPLITS, ETC.  Pursuant and
subject to Section 13 of the Plan, certain changes in the number or character of
the Common Stock of the Company (through sale, merger, consolidation, exchange,
reorganization, divestiture (including a spin-off, liquidation,
recapitalization, stock split, stock dividend or otherwise) shall result in an
adjustment, reduction or enlargement, as appropriate, in the Optionee's rights
with respect to any unexercised portion of the Option (I.E., the Optionee shall
have such "anti-dilution" rights under the Option with respect to such events,
but shall not have "preemptive" rights).

          d.   SHARES RESERVED.  The Company shall at all times during the term
of this Option reserve and keep available such number of shares as will be
sufficient to satisfy the requirements of this Agreement.

          e.   WITHHOLDING TAXES ON DISQUALIFYING DISPOSITION.  In the event of
a disqualifying disposition of the shares acquired through the exercise of this
Option, the Optionee hereby agrees to inform the Company of such disposition. 
Upon notice of a disqualifying disposition, the Company may take such action as
it deems appropriate to insure that, if necessary to provide the Company with
the opportunity to claim the benefit of any income tax deduction which may be
available to it upon such disqualifying disposition and to comply with all
applicable federal or state income tax laws or regulations, all applicable
federal and state payroll, income or other taxes are withheld from any amounts
payable by the Company to the Optionee.  If the Company is unable to withhold
such federal and state taxes, for whatever reason, the Optionee hereby agrees to
pay to the Company an amount equal to the amount the Company would otherwise be
required to withhold under federal or state law.  The Optionee may, subject to
the approval and discretion of the Board of Directors or such other
administrative rules it may deem advisable, elect to have all or a portion of
such tax withholding obligations satisfied by delivering shares of the Company's
Common Stock having a fair market value equal to such obligations.

          f.   TERMINATION OF EMPLOYMENT OTHER THAN BY DEATH OR DISABILITY OR
FOR CAUSE.  If the Optionee ceases to be an employee of the Company or any
Subsidiary for any reason (including, without limitation, termination of
employment as a result of the reorganization, sale or liquidation by the Company
or the Subsidiary which employs the Optionee where the Optionee does not
thereafter continue as an employee of the Company or another Subsidiary), other
than because of death, disability or discharge for cause, this Option shall
completely terminate on the earlier of (i) the close of business on the one-
month anniversary date of such termination of employment, and (ii) the
expiration date of this Option stated in Paragraph 2 above.  In such period
following such termination of employment, this Option shall be exercisable only
to the extent it had not previously been exercised.  If the Optionee does not
exercise the Option within the time specified in this Paragraph 4(f), all rights
of the Optionee under this Option shall be forfeited.

          g.   DISABILITY.  If the Optionee ceases to be an employee of the
Company or any Subsidiary due to disability (as such term is defined in Section
22(e)(3), or any successor provision,

                                      -14-

<PAGE>

of the Code), this Option shall completely terminate on the earlier of (i) 
the close of business on the twelve-month anniversary date of such 
termination of employment, and (ii) the expiration date of this Option stated 
in Paragraph 2 above.  In such period following such termination of 
employment, this Option shall be exercisable only to the extent it had not 
previously been exercised.  If the Optionee does not exercise the Option 
within the time specified in this Paragraph 4(g), all rights of the Optionee 
under this Option shall be forfeited.  

          h.   DEATH.  If the Optionee dies (i) while in the employ of the
Company or any Subsidiary; (ii) within the three-month period after the
termination of employment in the case of Paragraph 4(f) above; or (iii) within
the twelve-month period after the termination of employment in the case of
Paragraph 4(g) above, this Option shall terminate on the earlier of (i) the
close of business on the twelve-month anniversary date of the Optionee's death
and (ii) the expiration date of this Option stated in Paragraph 2 above.  In
such period following the Optionee's death, this Option may be exercised only by
the person or persons to whom the Optionee's rights under this Option shall have
passed by the Optionee's will or by the laws of descent and distribution and
only to the extent the Option was exercisable on the date of death but had not
previously been exercised.

          i.   1996 STOCK OPTION PLAN.  The Option evidenced by this Agreement
is granted pursuant to the Plan, a copy of which Plan has been made available to
the Optionee and is hereby incorporated into this Agreement.  This Agreement is
subject to and in all respects limited and conditioned as provided in the Plan. 
The Plan governs this Option and, in the event of any questions as to the
construction of this Agreement or in the event of a conflict between the Plan
and this Agreement, the Plan shall govern, except as the Plan otherwise
provides.

          j.   SCOPE OF AGREEMENT.  This Agreement shall bind and inure to the
benefit of the Company and its successors and assigns and the Optionee and any
successor or successors of the Optionee permitted by Paragraph 2(b) above.

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed on the day and year first above written.

                              ADVANCED UROSCIENCE, INC.


                              By: ____________________________________________


                                  Its: _______________________________________



                                                                              
                              Optionee _______________________________________







                                      -15-

<PAGE>

                   FORM OF NONQUALIFIED STOCK OPTION AGREEMENT

                            AVANCED UROSCIENCE, INC.
                             1996 STOCK OPTION PLAN


     THIS AGREEMENT, made effective as of this ________ day of __________, 19__,
by and between Advanced UroScience, Inc., a Minnesota corporation (the 
"Company"), and ______________________________________, ("the Optionee");

                              W I T N E S S E T H:

     WHEREAS, the Optionee on the date hereof is a director of the Company; and

     WHEREAS, Section 11 of the Company's 1996 Stock Option Plan (the "Plan")
provides for the grant of a nonqualified stock option to the Optionee to
purchase shares of the Company's Common Stock; and

     WHEREAS, as of the effective date of this Agreement the fair market value
of the Company's Common Stock is $______ per share;

     NOW, THEREFORE, in consideration of the premises and of the mutual
covenants herein contained, the parties hereto agree as follows:

     1.   GRANT OF OPTION.  The Company hereby grants to the Optionee on the
date set forth above (the "Date of Grant"), the right and option (the "Option")
to purchase all or portions of an aggregate of Five Thousand (5,000) shares of
Common Stock at a per share price of $________ on the terms and conditions set
forth herein, and subject to adjustment pursuant to Section 13 of the Plan. 
This Option is a nonqualified stock option and will not be treated as an
incentive stock option, as defined under Section 422, or any successor
provision, of the Internal Revenue Code of 1986, as amended (the "Code"), and
the regulations thereunder.

     2.   DURATION AND EXERCISABILITY.

          a.   The term during which this Option may be exercised shall
terminate on ___________________, 20__, unless terminated earlier under the
provisions of Paragraphs 4(f) or 4(g) below.  This Option shall be immediately
and fully exercisable on the Date of Grant, and the Optionee may exercise this
Option under the terms and conditions of this Agreement until the termination of
the Option as provided herein.  If the Optionee does not purchase upon an
exercise of this Option the full number of shares which Optionee is then
entitled to purchase, the Optionee may purchase upon any subsequent exercise
prior to this Option's termination such previously unpurchased shares in
addition to those the Optionee is otherwise entitled to purchase.

          b.   During the lifetime of the Optionee, the accrued Option shall be
exercisable only by the Optionee or by the Optionee's guardian or other legal
representative, and shall not be assignable or transferable by the Optionee, in
whole or in part, other than by will or by the laws of descent and distribution.


<PAGE>

     3.    MANNER OF EXERCISE.

          a.   The Option may be exercised only by the Optionee (or other proper
party in the event of death or incapacity), subject to the conditions of the
Plan and subject to such other administrative rules as the Board of Directors
may deem advisable, by delivering within the option period written notice of
exercise to the Company at its principal office.  The notice shall state the
number of shares as to which the Option is being exercised and shall be
accompanied by payment in full of the option price for all shares designated in
the notice.  The exercise of the Option shall be deemed effective upon receipt
of such notice by the Company and upon payment that complies with the terms of
the Plan and this Agreement.

          b.   Payment of the option price by Optionee shall be in the form of
cash, certified check or previously acquired shares of Common Stock of the
Company, or any combination thereof.  Any stock so tendered as part of such
payment shall be valued at its fair market value as provided in the Plan.  As
soon as practicable after the effective exercise of all or any part of the
Option, the Optionee shall be recorded on the stock transfer books of the
Company as the owner of the shares purchased, and the Company shall deliver to
the Optionee one or more duly issued stock certificates evidencing such
ownership.  All requisite original issue or transfer documentary stamp taxes
shall be paid by the Company.  For purposes of this Agreement, "previously
acquired shares of Common Stock" shall include shares of Common Stock that are
already owned by the Optionee at the time of exercise.  

     4.   MISCELLANEOUS.

          a.   RIGHTS AS SHAREHOLDER.  This Agreement shall not confer on the
Optionee any right with respect to the continuance of any relationship with the
Company or any of its Subsidiaries, nor will it interfere in any way with the
right of the Company to terminate any such relationship.  The Optionee shall
have no rights as a shareholder with respect to shares subject to this Option
until such shares have been issued to the Optionee upon exercise of this Option.
No adjustment shall be made for dividends (ordinary or extraordinary, whether in
cash, securities or other property), distributions or other rights for which the
record date is prior to the date such shares are issued, except as provided in
Section 13 of the Plan.

          b.   SECURITIES LAW COMPLIANCE.  The exercise of all or any parts of
this Option shall only be effective at such time as counsel to the Company shall
have determined that the issuance and delivery of Common Stock pursuant to such
exercise will not violate any state or federal securities or other laws.  The
Optionee may be required by the Company, as a condition of the effectiveness of
any exercise of this Option, to agree in writing that all Common Stock to be
acquired pursuant to such exercise shall be held, until such time that such
Common Stock is registered and freely tradable under applicable state and
federal securities laws, for the Optionee's own account without a view to any
further distribution thereof, that the certificates for such shares shall bear
an appropriate legend to that effect and that such shares will be not
transferred or disposed of except in compliance with applicable state and
federal securities laws.


                                      -17-

<PAGE>


          c.   MERGERS, RECAPITALIZATIONS, STOCK SPLITS, ETC.  Pursuant and
subject to Section 13 of the Plan, certain changes in the number or character of
the Common Stock of the Company (through sale, merger, consolidation, exchange,
reorganization, divestiture (including a spin-off), liquidation,
recapitalization, stock split, stock dividend or otherwise) shall result in an
adjustment, reduction or enlargement, as appropriate, in the Optionee's rights
with respect to any unexercised portion of the Option (I.E., the Optionee shall
have such "anti-dilution" rights under the Option with respect to such events,
but shall not have "preemptive" rights).

          d.   SHARES RESERVED.  The Company shall at all times during the term
of this Option reserve and keep available such number of shares as will be
sufficient to satisfy the requirements of this Agreement.

          e.   WITHHOLDING TAXES.  In order to provide the Company with the
opportunity to claim the benefit of any income tax deduction which may be
available to it upon the exercise of this Option and to permit the Company to
comply with all applicable federal or state income tax laws or regulations, the
Company may take such action as it deems appropriate to insure that, if
necessary, all applicable federal or state payroll, income or other taxes are
withheld from any amounts payable by the Company to the Optionee.  If the
Company is unable to withhold such federal and state taxes, for whatever reason,
the Optionee hereby agrees to pay to the Company an amount equal to the amount
the Company would otherwise be required to withhold under federal or state law.


          f.   TERMINATION OF DIRECTORSHIP (OTHER THAN DEATH) OR DISABILITY.  If
the Optionee ceases to be a director of the Company for any reason other than
because of death, this Option shall completely terminate on the earlier of (i)
the close of business on the 30th day after such termination of directorship and
(ii) the expiration date of this Option stated in Paragraph 2 above.  If the
Optionee does not exercise the Option within the time period specified in this
Paragraph 4(f), all rights of the Optionee under this Option shall be forfeited.

          g.   DEATH.  If the Optionee dies while serving as a nonemployee
director of the Company, this Option may be exercised by the Optionee, the
Optionee's estate or any person who acquired the right to exercise this Option
by bequest or inheritance, as the case may be, until the earlier of (i) the
close of business one hundred eighty (180) days after the date of the Optionee's
death and (ii) the expiration date of this Option stated in Paragraph 2 above. 
If the Option is not exercised within the time specified in this Paragraph 4(g),
all rights of the Optionee under this Option shall be forfeited.

          h.   1996 STOCK OPTION PLAN.  The Option evidenced by this Agreement
is granted pursuant to the Plan, a copy of which Plan has been made available to
the Optionee and is hereby incorporated into this Agreement.  This Agreement is
subject to and in all respects limited and conditioned as provided in the Plan. 
The Plan governs this Option and, in the event of any questions as to the
construction of this Agreement or in the event of a conflict between the Plan
and this Agreement, the Plan shall govern, except as the Plan otherwise
provides.


                                      -18-

<PAGE>

          i.   SCOPE OF AGREEMENT.  This Agreement shall bind and inure to the
benefit of the Company and its successors and assigns and the Optionee and any
successor or successors of the Optionee permitted by Paragraph 2(b) above.


     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed on the day and year first above written.

                              ADVANCED UROSCIENCE, INC.


                              By: ____________________________________________

                                  Its: _______________________________________




                              Optionee _______________________________________








                                      -19-


<PAGE>
                                                                      EXHIBIT 11


                            ADVANCED UROSCIENCE, INC.
                         COMPUTATION OF LOSS PER COMMON
                           AND COMMON EQUIVALENT SHARE



<TABLE>
<CAPTION>

                                                    Period from
                                                     August 1,
                                                   1994 (Date of                         Five Months Ended May 31,
                                                   Inception), to      Year Ended      ---------------------------
                                                    December 31,        December 31,       1995            1996
                                                       1994               1995         (Unaudited)     (Unaudited)
                                                   ----------------------------------------------------------------
<S>                                                <C>                  <C>            <C>            <C> 
Computation of weighted average
  number of common shares
  outstanding and common stock equivalent
  shares: (A)

Common shares outstanding at
  the beginning of the period                                --         2,811,600       2,811,600      3,170,220


Weighted average number of
  shares issued during the period                     2,279,004           20,000          14,400              --

Common equivalent shares
  attributed to stock options and
  warrants granted (B)                                  684,263          684,263         684,263         684,263

Common stock issued (C)                                 877,620          877,620         877,620         543,000
                                                    -----------       ----------     -----------      ----------
Weighted average number of
  common and common
  equivalent shares                                   3,840,887        4,393,483       4,387,883       4,397,483
                                                    -----------       ----------     -----------      ----------
                                                    -----------       ----------     -----------      ----------
Net loss                                              ($108,910)       ($524,444)      ($159,242)      ($514,651)
                                                    -----------       ----------     -----------      ----------
                                                    -----------       ----------     -----------      ----------
Loss per common and common 
  equivalent shares                                      ($0.03)          ($0.12)         ($0.04)         ($0.12)
                                                    -----------       ----------     -----------      ----------
                                                    -----------       ----------     -----------      ----------


</TABLE>
(A)  All shares have been adjusted to give effect to the 6 for 5 stock split
     approved by the Board of Directors in May 1996

(B)  All stock options and warrants are anti-dilutive, however, pursuant to the
     Securities and Exchange Commission Staff Accounting Bulletin No. 83 (SAB
     83), stock options and warrants granted with the exercise price below the
     assumed initial offering price during the twelve-month period preceding the
     date of the initial filing of the Registration Statement have been included
     in the calculation of common stock equivalent shares as if they were
     outstanding for all periods presented, using the treasury stock method.

(C)  Pursuant to the Securities and Exchange Commission SAB 83, all stock issued
     at a price below the assumed initial offering price issued during the
     twelve-month period preceding the date of the initial filing of the
     Registration Statement has been included in the calculation of common stock
     as if it was outstanding for all periods presented.

 

<PAGE>


                                                                  EXHIBIT 23.2


                         CONSENT OF INDEPENDENT AUDITORS





The Board of Directors
Advanced UroScience, Inc.
St. Paul, Minnesota


We hereby consent to the use in this Registration Statement on Form SB-2 of our
report, dated January 26, 1996, relating to the financial statements of Advanced
UroScience, Inc., and to the reference to our Firm under the caption "Experts"
in the Prospectus.






                                        McGLADREY & PULLEN, LLP

Minneapolis, Minnesota
August 5, 1996




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