ADVANCED UROSCIENCE INC
SB-2, 1996-07-01
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<PAGE>
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JUNE 28, 1996
 
                                                   REGISTRATION NO. 333-
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                           --------------------------
                                   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/
                           --------------------------
 
                        CALCULATION OF REGISTRATION FEE
 
<TABLE>
<CAPTION>
            TITLE OF EACH CLASS                                    PROPOSED MAXIMUM    PROPOSED MAXIMUM
            OF SECURITIES TO BE                  AMOUNT TO BE       OFFERING PRICE        AGGREGATE           AMOUNT OF
                 REGISTERED                     REGISTERED (1)      PER SHARE (2)     OFFERING PRICE (2)   REGISTRATION FEE
<S>                                           <C>                 <C>                 <C>                 <C>
Common Stock (no par value)                    1,725,000 shares         $10.00           $17,250,000            $5,949
</TABLE>
 
(1)  Includes  225,000   shares  purchasable  by   the  Underwriters  to   cover
    overallotments.
 
(2)  Estimated solely  for the purposes  of calculating the  registration fee in
    accordance with Rule 457(a) under the Securities Act of 1933, as amended.
                           --------------------------
 
    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.
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<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 JUNE 28, 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 immediately restore
the patient to urinary continence.
 
    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 a  number of these people, specifically
those with intrinsic  sphincter deficiency, could  benefit from 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.
 
    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.
 
                                       3
<PAGE>
                                  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)   $      (.27)
                                    -----------------  -----------------  ---------  ---------  ---------------
                                    -----------------  -----------------  ---------  ---------  ---------------
  Weighted average number of
    common and common equivalent
    shares outstanding............       3,840,887          4,393,483     4,387,883  4,397,483      4,268,802
                                    -----------------  -----------------  ---------  ---------  ---------------
                                    -----------------  -----------------  ---------  ---------  ---------------
</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.......................................       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.
 
                                       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.
 
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 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  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."
 
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
 
                                       5
<PAGE>
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 of the existence of patents
relating  to other 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 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
 
                                       6
<PAGE>
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."
 
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."
 
                                       7
<PAGE>
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.
 
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
 
                                       8
<PAGE>
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."
 
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
 
                                       9
<PAGE>
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."
 
ADVERSE EFFECT OF ANTI-TAKEOVER PROVISIONS AND CLASS A PREFERRED 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  Class A
Preferred 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 Class  A 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."
 
                                       10
<PAGE>
                                 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>
 
                                       11
<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>
 
                                       12
<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) $        (.27)
                                           ------------  ------------  ------------  ------------  -------------
                                           ------------  ------------  ------------  ------------  -------------
  Weighted average number of common and
    common equivalent shares
    outstanding..........................    3,840,887     4,393,483      4,387,883     4,397,483      4,268,802
                                           ------------  ------------  ------------  ------------  -------------
                                           ------------  ------------  ------------  ------------  -------------
</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...................................     205,600     257,100      66,400     1,319,900
</TABLE>
 
                                       13
<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."
 
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, increased  preclinical
testing  costs and  outside consulting  expenses. The  preclinical testing costs
consist  largely  of  payments  to  investigators  and  product  costs  for  the
preclinical work.
 
    General  and administrative  expenses were $309,700  in the  1996 period and
$48,600  in  the  1995  period.  The  increase  was  due  to  higher  levels  of
compensation,  a $160,000  non-cash charge related  to stock  option grants, and
added personnel, as well as general  insurance, professional fees and travel  to
support increased operating activities.
 
    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.
 
    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 the  start of
significant preclinical  testing and  consulting expenditures.  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.  These costs primarily include  compensation,
office support costs, and professional fees.
 
    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.
 
                                       14
<PAGE>
    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."
 
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.
 
                                       15
<PAGE>
                                    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  immediately
restore the patient to urinary continence.
 
    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 a  number of these people, specifically
those with intrinsic  sphincter deficiency, could  benefit from 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.
 
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)
 
                                       16
<PAGE>
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. The  Company's
product  is designed  to specifically treat  stress urinary  incontinence due to
intrinsic sphincter deficiency.
 
    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 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.  If Acyst  gains marketing  approval from  the FDA,  it  is
likely  that  it  will be  labelled  only for  use  in cases  of  stress urinary
incontinence due to intrinsic sphincter deficiency.
 
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
 
                                       17
<PAGE>
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)  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 hypermobility. 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
 
                                       18
<PAGE>
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 immediate  results 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.
 
    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 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 drawbacks associated with  the
commercially  available injectable bulking agents. 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
 
                                       19
<PAGE>
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 following the
procedure, the patient is likely to experience immediate 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.
 
    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 may provide relief
    almost immediately. 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."
 
                                       20
<PAGE>
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  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.
 
                                       21
<PAGE>
    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  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.
 
                                       22
<PAGE>
    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.
 
    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
 
                                       23
<PAGE>
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.
 
                                       24
<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.
 
    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 marketing  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.
 
                                       25
<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
1984   to  1986,   Mr.  Knoblach  served   as  division   manager  for  Genetics
International, Inc.,  the  predecessor of  MediSense,  Inc. Mr.  Knoblach  is  a
director  of  Harbinger,  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
 
                                       26
<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.
 
                                       27
<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 recently adopted,  subject to shareholder  approval,
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.
 
                                       28
<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.
 
                                       29
<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%
 
Mark 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. Lawin's  wife), 108,000
    shares held by Mr. Lawin's daughter,  36,000 shares held by Brennen  Medical
    (a  corporation  controlled  by  Mr.  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. 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.
 
                                       30
<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.  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. 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. Mark 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 Class  A Preferred Stock  ("Preferred 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.
 
PREFERRED STOCK
 
    The following description of the Preferred Stock is subject to the  detailed
provisions  of  the  Preferred  Stock contained  in  the  Company's  Articles of
Incorporation,  as  amended.  No  shares  of  Preferred  Stock  are  issued   or
outstanding.
 
    In  the  event  of  the  liquidation,  dissolution  or  winding  up  of  the
corporation, whether voluntary  or involuntary, holders  of Preferred Stock  are
entitled to receive the applicable per share initial subscription price plus any
accrued  and unpaid dividends. In  the event that the  assets of the Company are
insufficient for all  holders of  Preferred Stock to  receive their  liquidation
amount, such holders will share pro rata in proportion to the amounts they would
otherwise be entitled.
 
    Holders  of Preferred Stock  are not entitled to  any special dividends. Any
dividends paid by the Company, which dividends are not anticipated, will be paid
equally among holders of Common Stock and the Preferred Stock.
 
                                       31
<PAGE>
    Each share of the Company's Preferred Stock entitles its holder to one vote.
Holders of  Common Stock  and Preferred  Stock vote  as a  single class  on  all
matters  submitted  to the  Company's shareholders,  except where  the Minnesota
Business Corporation Act requires separate class voting, such as with respect to
voting on a merger, exchange, liquidation or amendment to the Company's Articles
of Incorporation which may adversely affect holders of the Company's securities.
 
    Each Preferred  Stock will  be  automatically converted  into one  share  of
Common  Stock of  the Company, as  adjusted, upon  (i) the closing  of the first
registered, firm commitment, underwritten public offering for the Company with a
price of at least $3.33 per share of Common Stock, as adjusted or (ii) on  March
1  of  any year  in  which the  year-end  audited financial  statements  for the
Company's prior year show gross revenues of at least $2,000,000. The Company has
reserved a sufficient  number of shares  of its Common  Stock for issuance  upon
conversion  of  the Preferred  Stock, which  number of  reserved shares  will be
adjusted in the event of certain actions by the corporation so as to maintain  a
level  of shares of Common Stock necessary  to provide for the conversion of all
of the Preferred 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.
 
                                       32
<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.
 
                                       33
<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.
 
                                       34
<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  the
prevailing  market  conditions,  estimates  of  the  business  potential  of the
Company, the results of  operations of the Company  in recent periods and  other
factors deemed to be relevant.
 
    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.
 
                                       35
<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)   $       (0.27)
                                ---------------   ------------   -----------   -----------   --------------
                                ---------------   ------------   -----------   -----------   --------------
Weighted average number of
  common and common equivalent
  shares outstanding..........     3,840,887        4,393,483      4,387,883     4,397,483        4,268,802
                                ---------------   ------------   -----------   -----------   --------------
                                ---------------   ------------   -----------   -----------   --------------
</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. 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.
 
    PREFERRED  STOCK:   The  Board  of Directors  authorized  issuance of  up to
2,000,000 shares of  preferred stock.  The preferred stock  has certain  voting,
liquidation,  dividend and conversion rights.  As of May 31,  1996, no shares of
preferred stock have been issued.
 
    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.
 
                                      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.................................          11
Dilution.......................................          12
Selected Financial Data........................          13
Management's Discussion and Analysis of
 Financial Condition and Results of
 Operations....................................          14
Business.......................................          16
Management.....................................          25
Certain Transactions...........................          28
Principal Shareholders.........................          30
Description of Securities......................          31
Shares Eligible for Future Sale................          33
Underwriting...................................          34
Legal Matter...................................          35
Experts........................................          35
Available Information..........................          35
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 less  than $.01  per share  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 (to be filed by amendment)
       3.1   Articles of Incorporation, as amended
       3.2   Amended and Restated Bylaws
       4.1   Form of Stock Certificate (to be filed by amendment)
       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. (to be filed by amendment)
      10.1   1996 Stock Option Plan (to be filed by amendment)
      10.2   Form of Stock Option Agreement
      10.3   Form of Stock Purchase Warrant
</TABLE>
 
                                      II-2
<PAGE>
<TABLE>
<CAPTION>
  EXHIBIT
  NUMBER                                                   DESCRIPTION
- -----------  --------------------------------------------------------------------------------------------------------
<C>          <S>
      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>
 
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 June 28, 1996.
 
                                          ADVANCED UROSCIENCE, INC.
 
                                          By          /s/ DEAN A. KLEIN
 
                                            ------------------------------------
                                                       Dean A. Klein,
                                               PRESIDENT AND CHIEF EXECUTIVE
                                                           OFFICER
 
                               POWER OF ATTORNEY
 
    Pursuant   to  the  requirements  of  the   Securities  Act  of  1933,  this
Registration  Statement  has  been  signed  by  the  following  persons  in  the
capacities  and  on the  dates indicated.  Each person  whose signature  to this
Registration Statement appears  below hereby  constitutes and  appoints Dean  A.
Klein  and Timothy P.  Lawin, and each  of them, as  his or her  true and lawful
attorney-in-fact and agent, with full power  of substitution, to sign on his  or
her behalf individually and in the capacity stated below and to perform any acts
necessary  to  be  done  in  order to  file  all  amendments  and post-effective
amendments to  this  Registration Statement,  and  any and  all  instruments  or
documents  filed as part of or in connection with this Registration Statement or
the amendments  thereto, and  each of  the undersigned  does hereby  ratify  and
confirm  all that  said attorney-in-fact and  agent, or his  or her substitutes,
shall do or cause to be done by virtue hereof.
 
            SIGNATURES                         TITLE                  DATE
- -----------------------------------  -------------------------  ----------------
 
                                     Chairman of the Board,
       /s/ TIMOTHY P. LAWIN           Chief Financial Officer
- -----------------------------------   (principal financial and   June 28, 1996
         Timothy P. Lawin             accounting officer)
 
         /s/ DEAN A. KLEIN
- -----------------------------------  President and Chief         June 28, 1996
           Dean A. Klein              Executive Officer
 
        /s/ BRUCE A. LAWIN
- -----------------------------------  Director                    June 28, 1996
          Bruce A. Lawin
 
        /s/ MARK G. NOSBUSH
- -----------------------------------  Director                    June 28, 1996
          Mark G. Nosbush
 
        /s/ PAUL E. COLOMBO
- -----------------------------------  Director                    June 28, 1996
          Paul E. Colombo
 
       /s/ JAMES M. KNOBLACH
- -----------------------------------  Director                    June 28, 1996
         James M. Knoblach
 
      /s/ HARRY E. WELLS, III
- -----------------------------------  Director                    June 28, 1996
        Harry E. Wells, III
 
                                      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 (to be filed by
              amendment)
       3.1   Articles of Incorporation, as amended
       3.2   Amended and Restated Bylaws
       4.1   Form of Stock Certificate (to be filed by amendment)
       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. (to be filed by amendment)
      10.1   1996 Stock Option Plan (to be filed by amendment)
      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>

<PAGE>


                              ARTICLES OF AMENDMENT
                                       OF
                            ARTICLES OF INCORPORATION
                                       OF
                            ADVANCED UROSCIENCE, INC.
                            (CLASS A PREFERRED STOCK)


     The undersigned, Timothy P. Lawin, Secretary of Advanced UroScience, Inc.,
a Minnesota corporation, hereby certifies: (i) that Article 3 of the
corporation's Articles of Incorporation has been amended to read in its entirety
as follows:

                           ARTICLE 3 - CAPITAL STOCK

     3.1  AUTHORIZED SHARES.  The aggregate number of shares that the
corporation has authority to issue shall be Twenty Million (20,000,000) shares
of common stock, and Two Million (2,000,000) shares of Class A Preferred stock.
Such shares shall not have any par value, except that they shall have a par
value of one cent ($.01) per share solely for the purpose of a statute or
regulation imposing a tax or fee based upon the capitalization of a corporation
and except that they shall have such par value as may be fixed by the
corporation's Board of Directors for the purpose of a statute or regulation
requiring the shares of the corporation to have a par value.

     3.2  CLASS A PREFERRED STOCK.  The Class A Preferred stock shall have the
following relative rights and preferences:

     (a)  DISTRIBUTIONS UPON LIQUIDATION, DISSOLUTION OR WINDING UP.  In the
          event of any voluntary or involuntary liquidation, dissolution or
          other winding up of the affairs of the corporation and prior to
          distribution or payment made to the holders of common stock, the
          holders of the Class A Preferred stock shall be entitled to be paid
          the applicable per share subscription price (the price at which such
          shares were initially sold by the corporation) of all outstanding
          shares of Class A Preferred stock as of the date of such liquidation
          or dissolution or such winding up, plus any accrued and unpaid
          dividends thereon to such date, and no more, in cash or in property at
          its fair value as determined by the Board of Directors, or both, at
          the election of the Board of Directors.  If such payment shall have
          been made in full to the holders of the Class A Preferred stock, the
          remaining assets and funds of the corporation shall be distributed
          among the holders of common stock, according to their respective
          shares and priorities.  If, upon any such liquidation, dissolution or
          other winding up affairs of the corporation, net assets of the
          corporation distributable among the holders of all outstanding shares
          of the Class A Preferred stock shall be insufficient to permit the
          payment in full to such holders of the preferential amounts to which
          they are entitled, then the entire


<PAGE>


          net assets of the corporation remaining shall be distributed among the
          holders of the Class A Preferred stock ratably in proportion to the
          full amounts to which they would otherwise be respectively entitled.
          Neither the consolidation or merger of the corporation into or with
          another corporation or corporations, nor the sale of all or
          substantially all of the assets of the corporation to another
          corporation or corporations shall be deemed a liquidation, dissolution
          or winding up of the affairs of the corporation within the meaning of
          this Article 3.2(a).

     (b)  DIVIDENDS.  Except as set forth in Article 3.2(a) with respect to
          certain dividend preferences in the event of liquidation, the holders
          of Class A Preferred stock shall share ratably in any dividends
          authorized by the corporation's Board of Directors and legally
          available for payment.  All such dividends will be issued and paid
          ratably among the holders of Class A Preferred stock and common stock,
          as if all such shares were of a single class.

     (c)  VOTING RIGHTS.  Except as may be required to comply with the
          provisions of Minnesota Statutes Chapter 302A as amended, the holders
          of the issued and outstanding Class A Preferred stock shall vote
          together with the holders of common stock on all shareholder matters,
          with each share of Class A Preferred stock and each share of common
          stock entitled to a single vote on all such matters.

     (d)  AUTOMATIC CONVERSION ON CERTAIN EVENTS.  The Class A Preferred stock
          shall automatically be converted into shares of common stock of the
          corporation, without any further act by the corporation or the holders
          of the Class A Preferred stock:

          (i)  concurrently with the closing of the first public offering of
               shares of common stock of the corporation registered under the
               Securities Act of 1933, as amended, in which (1) the offering is
               underwritten on a firm commitment basis by an underwriter, or a
               group of underwriters represented by an underwriter or
               underwriters, which is a member of the New York Stock Exchange,
               and (2) the public offering price per share of common stock is at
               least $4.00.  As used herein, the term "closing" shall mean the
               delivery to the underwriters of certificates representing the
               shares of common stock of the corporation offered to the public
               against delivery to the sellers thereof by such underwriters of
               payment therefor.  The term "firm commitment basis" with respect
               to the underwriting of such public offering shall mean a
               commitment pursuant to a written underwriting agreement under
               which the nature of the underwriters' commitment is such that all
               securities will be purchased by such underwriters if any
               securities are purchased by such underwriters; or


<PAGE>


          (ii) on March 1 of any year in which the fiscal year end audited
               financial statements of the corporation for the previous fiscal
               year show gross revenues of at least $200,000.

          Each holder of a share of Class A Preferred stock so converted shall
          be entitled to receive one share of common stock (as may be adjusted
          from time to time by the Board of Directors in order to equitably
          reflect stock splits, dividends, recapitalizations, combinations or
          the like) for each share of Class A Preferred stock held at the time
          of closing of such public offering or on such March 1, as the case may
          be.  At all times hereafter, the corporation will reserve for issuance
          a sufficient number of shares of common stock necessary for automatic
          conversions under this section 3.2(d).  Upon such conversion, each
          holder of a share or shares of Class A Preferred stock shall
          immediately surrender the certificate or certificates for such shares
          in exchange for appropriate stock certificates representing a share or
          shares of common stock of the corporation.  Regardless of whether
          certificates for such Class A Preferred stock are surrendered for
          exchange, in the event of an automatic conversion all issued and
          outstanding shares of Class A Preferred stock will be cancelled on the
          books and records of the corporation.

     (e)  NO OTHER PREFERENCES.  Except as may be set forth in this Article 3.2,
          or as may be required under the provisions of Minnesota Statutes
          Chapter 302A as amended, the Class A Preferred stock shall have no
          other preferences or special rights with respect to any other class of
          equity securities of the corporation.

     3.3  ISSUANCE OF SHARES.  The Board of Directors of the corporation is
authorized from time to time to accept subscriptions for, issue, sell and
deliver shares of stock of any authorized class or series of the corporation,
and rights to purchase securities of the corporation, to such persons, at such
time, for such consideration, and upon such terms and conditions as the Board
shall determine."

     IN WITNESS WHEREOF, I have subscribed my name on behalf of the corporation
this 28th day of March 1996.


                                        /s/ Timothy P. Lawin
                                        -----------------------------------
                                        Timothy P. Lawin, Secretary

<PAGE>


                           ARTICLES OF INCORPORATION

                                       OF

                            ADVANCED UROSCIENCE, INC.

     The undersigned, being a natural person of full age, for the purpose of
forming a corporation under and pursuant to Chapter 302A of Minnesota Statutes,
as amended, hereby adopts the following Articles of Incorporation:

                                ARTICLE 1 - NAME

     1.1  The name of the corporation shall be Advanced UroScience, Inc.

                          ARTICLE 2 - REGISTERED OFFICE

     2.1  The location and office address of the registered office of the
corporation in this state shall be 1290 Hammond Road, White Bear Lake, Minnesota
55110.

                            ARTICLE 3 - CAPITAL STOCK

     3.1  AUTHORIZED SHARES.  The aggregate number of shares that the
corporation has authority to issue shall be Twenty Million (20,000,000) shares
of common stock.  Such shares shall not have any par value, except that they
shall have a par value of one cent ($.01) per share solely for the purpose of a
statute or regulation imposing a tax or fee based upon the capitalization of a
corporation and except that they shall have such par value as may be fixed by
the corporation's Board of Directors for the purpose of a statute or regulations
requiring the shares of the corporation to have a par value.

     3.2  ISSUANCE OF SHARES.  The Board of Directors of the corporation is
authorized from time to time to accept subscriptions for, issue, sell and
deliver shares of stock of any class or series of the corporation, and rights to
purchase securities of the corporation, to such persons, at such time, for such
consideration, and upon such terms and conditions as the Board shall determine.

                       ARTICLE 4 - RIGHTS OF SHAREHOLDERS

     4.1  NO PREEMPTIVE RIGHTS.  No shareholder of the corporation shall have
any preemptive right to subscribe for, purchase or acquire any shares of stock
of any class or series of the corporation now or hereafter authorized or issued
by the corporation.

     4.2  NO CUMULATIVE VOTING RIGHTS.  No shareholder shall have the right to
cumulate votes for the election of directors or for any other purpose.


<PAGE>


                     ARTICLE 5 - WRITTEN ACTION BY DIRECTORS

     5.1  Any action required or permitted to be taken at a Board meeting may be
taken by written action signed by all of the directors or, in cases where the
action need not be approved by the shareholders, by written action signed by the
number of directors that would be required to take the same action at a meeting
of the Board at which all directors were present.

                  ARTICLE 6 - LIMITATION OF DIRECTOR LIABILITY

     6.1  A director shall not be personally liable to the corporation or to its
stockholders for monetary damages for any breach of fiduciary duty as a
director, except to the extent that elimination or limitation of liability is
not permitted under Section 302A.251, the Minnesota Business Corporation Act, as
the same exists or may hereafter be amended.  Any repeal or modification of the
provisions of this Article shall not adversely affect any right or protection of
a director of the Corporation existing at the time of such repeal or
modification.

          ARTICLE 7 - MERGER, EXCHANGE, SALE OF ASSETS AND DISSOLUTION

     7.1  Where approval of shareholders is required by law, the affirmative
vote of the holders of at least a majority of the voting power of all shares
entitle to vote shall be required to authorize the corporation (i) to merge into
or with one or more other corporations, (ii) to exchange its shares for shares
of one or more other corporations, (iii) to sell, lease, transfer or otherwise
dispose of all or substantially all of its property and assets, including its
good will, or (iv) to commence voluntary dissolution.

               ARTICLE 8 - AMENDMENT OF ARTICLES OF INCORPORATION

     8.1  Any provision contained in these Articles of Incorporation may be
amended, altered, changed or repealed by the affirmative vote of the holders of
at least a majority of the voting power of the shares present and entitled to
vote at a duly held meeting or such greater percentage as may be otherwise
prescribed by the laws of the State of Minnesota.

                            ARTICLE 9 - INCORPORATOR

     9.1  The name and post office address of the incorporator are as follows:

          Dean A. Klein            1290 Hammond Road
                                   St. Paul, Minnesota 55110


<PAGE>


     IN WITNESS WHEREOF, the undersigned incorporator has hereunto set his hand
this 27th day of July, 1994.

                                        /s/ Dean A. Klein
                                        -----------------------------------
                                        Dean A. Klein


Subscribed and sworn to before me
this 27th day of July, 1994


- --------------------
Notary Public

<PAGE>


                              AMENDED AND RESTATED
                                     BYLAWS
                                       OF
                            ADVANCED UROSCIENCE, INC.



A corporation duly organized under Minnesota Statutes, Chapter 302A, as amended.


                                     OFFICES

     BYLAW 1.  PLACE.  The registered office of the corporation shall be at such
location as set forth in the Articles of Incorporation or any such subsequent
filings made with the Secretary of State.  The principal executive office in
Minnesota shall be at such location as may be determined by the Board of
Directors.  Other offices may be maintained by the corporation at any other
place or places which the Board may designate.

     BYLAW 2.  MAINTENANCE OF RECORDS.  The original books and records of the
corporation shall be maintained at the principal executive office of the
corporation where they shall be available for examination by the shareholders on
such terms and conditions as the Board may from time to time impose.


                             SHAREHOLDERS' MEETINGS

     BYLAW 3.  PLACE.  All meetings of the shareholders shall be held at such
place as the Board may designate provided that any meeting called at the demand
of one or more shareholders shall be held in the county where the principal
executive office is located.

     BYLAW 4.  REGULAR MEETINGS.  Regular meetings of the shareholders may be
called from time to time by the Board and any meeting so called shall be held on
such date and at such time as the Board may determine.  The action to be taken
at a regular meeting shall include the election of directors and any other
business appropriate for action by the shareholders.

     BYLAW 5.  SPECIAL MEETINGS.  Special meetings of the shareholders may be
called for any purpose by the President or Treasurer, or by the Board of
Directors or any two members thereof, and shall be called by the Board of
Directors at the demand in writing of a shareholder or shareholders owning 10
percent or more of the voting stock of the corporation, as provided by Minnesota
Statutes, Section 302A.433, Subd. 2, as amended.  Business transacted at any
special meeting shall be confined to purposes stated in the notice of the
meeting, unless all of the shareholders are present at the meeting and consent
to consideration of other business.


                                      - 1 -

<PAGE>


     BYLAW 6.  NOTICE.  Written notice of shareholder meetings shall be given to
each shareholder entitled to vote thereat by mailing such notice, postage
prepaid, to each shareholder's last known address.  The notice shall be given at
least 10 days, and not more than 60 days, before the meeting.  The notice of a
regular meeting shall set forth the time and place of the meeting and the items
of business to be transacted at the meeting.  The notice of a special meeting
shall set forth the time and place of the meeting and shall also state the
purpose or purposes of the meeting.  Notice may be waived by a shareholder
before, at or after a meeting, orally, in writing, or by attendance at the
meeting.

     BYLAW 7.  WRITTEN ACTIONS.  Any action which may be taken at a meeting of
the shareholders may be taken without a meeting if authorized by a writing
signed by all of the shareholders who would be entitled to vote on such action.
Such action is effective when it is signed by all of the shareholders, unless a
different effective time is provided in the written action.

     BYLAW 8.  QUORUM; ADJOURNMENT.  The presence at any meeting, in person or
by proxy, of the holders of a majority of the voting power of the shares
entitled to vote shall constitute a quorum for the transaction of business.  If
a quorum is present when a duly called or held meeting is convened, the
shareholders present may continue to transact business until adjournment, even
though the withdrawal of a number of shareholders originally present leaves less
than the proportion or number otherwise required for a quorum.  In the absence
of a quorum, those present may adjourn the meeting from day to day or time to
time without notice other than announcement at the meeting.  At an adjourned
meeting at which a quorum is present, any business may be transacted which might
have been transacted at the meeting as originally noticed.

     BYLAW 9.  VOTING; RECORD DATE.  At each meeting of the shareholders, each
shareholder entitled to vote thereat may vote in person or by proxy duly
appointed by a written instrument signed by such shareholder.  Shares owned by
two or more shareholders may be voted by any one of them unless the corporation
receives written notice from any one of them denying the authority of any other
person or persons to vote those shares.  Unless otherwise provided in the terms
of the shares, each shareholder shall have one vote for each share standing in
his or her name on the books of the corporation, or on the books of any transfer
agent appointed by the corporation, on the record date established by the Board,
which date shall be not more than 60 days before the meeting.  If no record date
has been established, the record date shall be the close of business on the
third business day preceding the date of the meeting as originally noticed.
Upon the demand of any shareholder, the vote for directors, or the vote upon any
question before the meeting, shall be by ballot.  All elections shall be had and
all questions shall be decided by a majority vote, except as otherwise
specifically provided for by statute or by the Articles of Incorporation.

     BYLAW 10.  SHAREHOLDER MANAGEMENT.  The shareholders of the corporation's
voting stock may, by unanimous affirmative vote, take any action required or
permitted to be taken


                                      - 2 -

<PAGE>


by the Board of Directors.  Such actions are deemed to be approved by the Board
of Directors, if such approval is required.


                               BOARD OF DIRECTORS

     BYLAW 11.  AUTHORITY.  The business and affairs of the corporation shall be
managed by the Board of Directors, subject to the provisions of Bylaw 10.  The
Board shall have all powers necessary and appropriate to manage the business of
the corporation, including the power to set the compensation of its members.

     BYLAW 12.  NUMBER, ELECTION AND TERM.  The directors shall number not less
than one nor more than nine.  The number of directors shall be determined from
time to time by resolution of the shareholders, and if the shareholders do not
expressly fix the number of directors to serve, then the number of directors
shall be the number of directors elected at the preceding regular meeting of the
shareholders or at any subsequent special meeting of the shareholders called for
the election of directors.  A director need not be a shareholder.  Directors
shall be elected by the vote of the holders of a majority of the shares present
at the meeting and entitled to vote.  At each such election, one director will
be designated and elected to serve a three year term, a second director will be
designated and elected to serve a two year term, and all other directors will be
elected to serve a one year term.  Notwithstanding the foregoing, each term of a
director shall not end until such director's successor has been elected and
qualified, or until such director's earlier death, resignation, removal or
disqualification.

     BYLAW 13.  MEETINGS.  Meetings of a Board may be called by the President or
by any director at any time.  In the absence of designation by the Board,
meetings of the Board shall be held at the principal executive office of the
corporation.

     BYLAW 14.  NOTICE.  The notice of a Board meeting shall state the time and
place of the meeting, and if the meeting is to be held by means of electronic
communication, the arrangements to be made in that regard.  Notice shall be
given to each director personally or by mail, telefax, or telegraph sent at
least 10 days prior to the meeting.  The notice need not specify the purpose or
purposes of the meeting.  Notice may be waived by a director before, at or after
a meeting, orally, in writing, or by attendance and participation at the
meeting.

     BYLAW 15.  WRITTEN ACTIONS.  Any action which might be taken at a meeting
of the Board may be taken without a meeting if authorized by a writing signed by
all directors unless the action need not be approved by the shareholders, in
which case the writing must be signed by the number of directors that would be
required to take the same action at a meeting of the Board at which all
directors were present.  A written action is effective when signed by the
required number of directors, unless a different effective time is provided in
the written action.


                                      - 3 -

<PAGE>


     BYLAW 16.  TELEPHONE MEETINGS.  The directors of the corporation may
participate in a meeting of the Board by means of conference telephone or
similar communications equipment which allows all persons participating in the
meeting to hear each other, and participation in a meeting pursuant to this
Bylaw shall constitute presence in person at such meeting.

     BYLAW 17.  QUORUM.  At all meetings of the Board, a majority of the
directors shall be necessary and sufficient to constitute a quorum for the
transaction of business, and the act of a majority of the directors present at
any meeting at which there is a quorum when the meeting is convened shall be the
act of the Board.  If there is only one director, that director shall constitute
a quorum.  In the absence of a quorum, those present may adjourn the meeting
from day to day or time to time without notice other than announcement at the
meeting.

     BYLAW 18.  ABSENT DIRECTORS.  A director may give advance written consent
or opposition to a proposal to be acted on at a Board meeting.  If the director
is not present at the meeting, consent or opposition to a proposal does not
constitute presence for purposes of determining the existence of a quorum, but
consent or opposition shall be counted as a vote in favor of or against the
proposal and shall be entered in the minutes or other record of action at the
meeting, if the proposal acted on at the meeting is substantially the same or
has substantially the same effect as the proposal to which the director has
consented or objected.

     BYLAW 19.  ORDER OF BUSINESS; RECORD OF PROCEEDINGS.  The directors shall
determine the order of the business of their meetings.  If a Secretary of the
corporation has been elected and is in attendance at a meeting, the Secretary
shall keep a record of all proceedings at the meeting; otherwise a Secretary PRO
TEM, chosen by the directors, shall so act.

     BYLAW 20.  VACANCY.  A vacancy in the Board of Directors resulting from the
death, resignation, removal or disqualification of a director shall be filled by
a majority vote of the remaining members of the Board, although less than a
quorum, and a vacancy resulting from a newly created directorship shall be
filled by the affirmative vote of a majority of the directors serving at the
time of the increase.  A director so elected shall serve until a successor is
elected by the shareholders at their next regular meeting or at a special
meeting duly called for that purpose, or until such director's earlier death,
resignation, removal or disqualification.

     BYLAW 21.  COMMITTEES.  The Board may establish such committees composed of
one or more natural persons, who need not be directors, having the authority of
the Board in the management of the business of the corporation to the extent
provided in the resolution establishing the committee.  Committees so
established are subject at all times to the direction and control of the Board.
These Bylaws apply to such committees and members of such committees to the same
extent as they apply to the Board and the directors.


                                      - 4 -

<PAGE>


                                      STOCK

     BYLAW 22.  ISSUANCE OF SHARES.  The Board is authorized to issue shares of
the corporation, in the full amount authorized by the Articles of Incorporation,
in such amounts and at such times as may be determined by the Board and as may
be permitted by law.

     BYLAW 23.  TRANSFER OF SHARES.  Subject to any applicable restrictions,
shares of stock in the corporation shall be transferred upon demand accompanied
by a tender of stock certificates to be transferred, duly endorsed, together
with any transfer taxes due thereon.

     BYLAW 24.  CERTIFICATE OF SHARES.  The certificates of shares of the
corporation shall be fully printed, lithographed, or steel engraved in form and
shall be registered in the books of the corporation as they are issued.  They
shall exhibit the holder's name, number of shares, any other information
required by law, and shall be signed by at least one officer of the corporation.
If a transfer agent has been appointed for the corporation's stock, the
signature of such officer may be by facsimile.

     BYLAW 25.  LOST CERTIFICATES.  Any shareholder claiming a certificate of
shares to be lost, stolen or destroyed shall make an affidavit or affirmation of
that fact in such form as the Board may require, and shall, if the Board so
requires, give the corporation (and its transfer agent, if a transfer agent be
appointed) his or her personal indemnification or a bond of indemnity in an
amount and form and with one or more sureties satisfactory to the Board,
whereupon a new certificate may be issued for the same number of shares as the
one alleged to have been lost, stolen or destroyed.


                                    OFFICERS

     BYLAW 26.  APPOINTMENT OF OFFICERS.  The Board shall appoint a President,
who shall be the chief executive officer, and a Treasurer, who shall be the
chief financial officer.  The Board may also appoint such other officers and
agents as it shall deem necessary from time to time, who shall exercise such
powers and perform such duties as stated in these Bylaws and/or as shall be
prescribed from time to time by the Board.  The same person may hold more than
one office.

     BYLAW 27.  TERMS OF OFFICE.  The officers of the corporation shall hold
office for an indefinite term until their successors are appointed and have
qualified, or until their earlier death, resignation, removal or
disqualification.  Any officer may be removed by the Board at any time, with or
without cause.

     BYLAW 28.  SALARIES.  The salaries of the officers of the corporation shall
be determined by the Board, or the Board may authorize the President to
determine such salaries.


                                      - 5 -

<PAGE>


     BYLAW 29.  PRESIDENT.  In addition to such other powers or duties as the
Board may prescribe, the President shall have responsibility for the general
active management of the business of the corporation.  Unless a Chairman of the
Board has been appointed and is present, the President shall preside at all
meetings of the Board of Directors and of the shareholders.  Unless some other
person is specifically authorized by the Board, the President shall sign all
stock certificates, bonds, deeds, mortgages, instruments, contracts and
agreements on behalf of the corporation.  The President shall have such other
powers as may be granted by Minnesota law to the chief executive officer.

     BYLAW 30.  CHAIRMAN.  In addition to such other powers or duties as the
Board may prescribe the Chairman shall preside at all meetings of the
directors and shareholders.

     BYLAW 31.  CHIEF FINANCIAL OFFICER.  In addition to such other powers or
duties as the President or the Board may prescribe, the Chief Financial Officer
shall keep accurate financial records for the corporation and shall be
responsible for the safekeeping, deposit and disbursal of all moneys, securities
and other valuables that may come into the possession of the corporation.  The
Chief Financial Officer shall have such other powers as may be granted by
Minnesota law to the chief financial officer.

     BYLAW 32.  VICE PRESIDENT.  If the Board shall appoint a Vice President,
the Vice President shall, in the absence or disability of the President, perform
the duties and exercise the powers of the President, and shall perform such
other duties as the Board may prescribe.

     BYLAW 33.  SECRETARY.  If the Board shall appoint a Secretary, the
Secretary shall attend all meetings of the Board of Directors and of the
shareholders and record all votes and the minutes of all proceedings in a book
kept for that purpose.  The Secretary shall also give, or cause to be given,
notice of all meetings of the shareholders and of the Board of Directors, and
shall perform such other duties as may be prescribed by the Board.

     BYLAW 34.  VACANCY.  If the office of any officer becomes vacant, the
directors then in office, although less than a quorum may choose a successor,
who shall hold office for the unexpired term in respect of which such vacancy
occurred.


                                  MISCELLANEOUS

     BYLAW 35.  NO SEAL.  The corporation shall not have a corporate seal.

     BYLAW 36. AMENDMENTS TO BYLAWS.  These Bylaws, or any one or more of them,
may be amended or repealed by the Board of Directors, provided that the Board
shall not adopt, amend or repeal any Bylaw fixing a quorum for meetings of
shareholders, prescribing procedures for removing directors or filling vacancies
on the Board, or fixing the qualifications, classifications, term of office, or
number (except to increase the number) of directors.  Such authority in the
directors is subject to the powers of the shareholders to


                                      - 6 -

<PAGE>


adopt, amend or repeal such Bylaws as provided in Minnesota Statutes, Section
302A.181, Subd. 3, as amended.

     BYLAW 37.  INDEMNIFICATION.  Pursuant to the provisions of Minnesota
Statutes, Section 302A.521, as amended, the corporation shall indemnify its
officers, directors, committee members, employees, and agents in the manner and
to the full extent that the corporation has power to provide indemnification
under such statute, provided that a determination is made in each case, in the
manner required by such statute, that the person seeking indemnification is
eligible therefor.  The corporation may purchase and maintain insurance on
behalf of its officers, directors, committee members, employees, and agents
against any liabilities asserted against such persons in their official
capacities, regardless of whether or not the corporation is required to provide
indemnification under this section with respect to such liabilities.

     BYLAW 38.  SHAREHOLDERS' AGREEMENT.  Any of the provisions contained herein
may be modified pursuant to an agreement among the shareholders adopted in the
manner required by Minnesota Statutes, Section 302A.457, as amended.


                                   CERTIFICATE

     The foregoing Amended and Restated Bylaws of Advanced UroScience, Inc. were
adopted by the Board of Directors of the corporation effective the 31st day of
January, 1996.



                              /s/ Timothy P. Lawin
                              ---------------------------------------------
                              Timothy P. Lawin, Chairman of the Board and
                              Secretary


                                      - 7 -

<PAGE>


                            ADVANCED UROSCIENCE, INC.
                             STOCK OPTION AGREEMENT



PARTIES:            
                    ------------------------
                    
                    ------------------------

                    ------------------------   ("Optionee")


                    Advanced UroScience, Inc.
                    1290 Hammond Road
                    St. Paul, MN 55110  ("Corporation")



EFFECTIVE DATE:     
                    ------------------------


                                    AGREEMENT



SECTION 1. OPTION GRANT.

                             --------------------

     Subject to the additional terms and conditions herein and in order to
provide ongoing performance incentives to certain key employees, directors and
executives, the Corporation grants to Optionee the option to purchase up to
________shares of common stock of the Corporation at an exercise price of ______
per share. This option may be exercised in whole or in part at any time and from
time to time through ____________________, subject to earlier expiration in the
event Optionee: (a) dies; (b) voluntarily terminates his employment or
directorship; or (c) is discharged by the Corporation following Optionee's
conviction of any felony, or any gross misdemeanor which relates to the
Corporation's business, and/or following Optionee's refusal to perform his
employment duties, which refusal shall remain uncured for at least 30 days
following written notice by the Corporation. Upon Optionee's death, this option
will expire within 180 days of Optionee's death, but in no event later than
_________________. Upon Optionee's voluntary termination of employment, or his
discharge by the Corporation for any reasons identified above, this option will
expire 30 days from the effective date of such termination or discharge.

     All rights under this option are personal to Optionee, and may not be sold,
assigned, pledged, hypothecated or transferred in any manner, and shall not be
subject to any voluntary or involuntary sale under execution, attachment or any
similar process. This option and all rights and privileges conferred hereby will
immediately become null and void upon any such transfer by Optionee or under
applicable law.


<PAGE>


SECTION 2. MANNER OF EXERCISE.


     This option may be exercised prior to expiration by delivery of a written
exercise notice signed by Optionee (or upon Optionee's death, by his legal
representative), together with full payment for all share to be exercised. At
its option, the Corporation may require Optionee to deliver an acceptable
opinion of counsel that the shares to be issued upon exercise of the option need
not be registered under the Securities Act of 1933 or any other applicable
securities laws.  Optionee shall also make arrangements satisfactory to the
Corporation to satisfy all applicable withholding requirements that may arise in
connection with exercise of this option and/or the disposition of any share
issuable upon such exercise.

SECTION 3. TRANSFER RESTRICTION.

     The Corporation reserves the right, in its sole discretion and judgment, to
impose restrictions upon the sale, pledge or other transfer of shares issuable
upon exercise of this option if, in its judgment, such restrictions are
necessary or desirable in order to achieve compliance with the provisions of the
Securities Act of 1933, the securities laws of any state, or any other law. Each
share certificate issued upon exercise of this option shall bear an appropriate
restrictive legend, unless the Corporation, in its sole judgment, feels that
such legend is not required.

SECTION 4. INVESTMENT INTENT.

     Except as may be permitted in the event Optionee's shares are registered,
Optionee represents and agrees that the shares to be acquired upon exercise of
this option will be acquired for investment only, and not with a view to the
resale or other distribution thereof in the event (a) that registration of the
sale of shares to be issued upon exercise of this option is not required under
the Securities Act of 1933, or (b) an exemption is available which requires an
investment or other representation, the Optionee shall represent and agree at
the time of exercise that the shares being acquired on exercise of this option
for investment only, and not with a view to the resale or distribution thereof,
and shall make such other representations as are deemed necessary or appropriate
by the Corporation and its counsel.

SECTION 5. LEGAL RIGHTS.

     Any determination by the Corporation and its counsel in connection with any
of the matters set forth in this Stock Option Agreement shall be conclusive and
binding upon the Optionee and all other parties. Neither the Optionee nor any
legal representative thereof shall have any rights as a shareholder with respect
to any shares subject to this option unless and until such shares have been
issued as provided herein.


<PAGE>


     IN WITNESS WHEREOF, the Corporation has caused this Agreement to be
executed on its behalf by the undersigned duly authorized officer, and the
Optionee has personally executed this Agreement, all dated and to be effective
as of the date hereof.


CORPORATION:                  OPTIONEE:
ADVANCED UROSCIENCE, INC.




By:
    --------------------------          ------------------------------

<PAGE>


THIS WARRANT HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, AND MAY NOT BE SOLD, PLEDGED OR OTHERWISE TRANSFERRED WITHOUT AN
EFFECTIVE REGISTRATION THEREOF UNDER SUCH ACT OR AN OPINION OF COUNSEL,
REASONABLY SATISFACTORY TO THE COMPANY AND ITS COUNSEL, THAT SUCH REGISTRATION
IS NOT REQUIRED.

                        ADVANCED UROSCIENCE, INCORPORATED
                           WARRANT TO PURCHASE SHARES
                                 OF COMMON STOCK


COMPANY:  Advanced UroScience, Incorporated, a Minnesota
          corporation (the "Company"), and any corporation that shall succeed to
          the obligations of the Company under this Warrant.


NUMBER OF SHARES:        ____________
CLASS OF STOCK:          Common Stock
EXERCISE PRICE:          _______ per share
EXPIRATION DATE:         _________________
DATE OF GRANT:           _________________


     THIS CERTIFIES THAT, for value received, ____________________ is entitled 
to purchase the above number (as adjusted pursuant to Section 6 hereof) of fully
paid and nonassessable shares of the Common Stock of the Company at the Exercise
Price above (as adjusted pursuant to Section 6 hereof), subject to the 
provisions and upon the terms and conditions set forth herein.

     1.   DEFINITIONS.

     As used herein, the following terms, unless the context otherwise requires,
shall have the following meanings:

          (a)  "Act" shall mean the Securities Act of 1933, as amended, or any
similar federal statute, and the rules and regulations thereunder, as shall be
in effect at the time.

          (b)  "Common Stock" shall mean shares of the presently authorized 
common stock of the Company and any stock into which such Common Stock may 
hereafter be exchanged.

          (c)  "Holder" shall mean any person who shall at the time be the
holder of this Warrant.


<PAGE>


          (d)  "Shares" shall mean the shares of the Class of Stock (as defined
on Page 1 of this Warrant) that the Holder is entitled to purchase upon exercise
of this Warrant, as adjusted pursuant to Section 6 hereof.

          (e)  "Warrant Price" shall mean the Exercise Price at which this
Warrant may be exercised, as adjusted pursuant to Section 6 hereof.

     2.   NUMBER OF SHARES.

     Holder is entitled to purchase ______ shares of the Company's Common Stock,
subject to the terms and conditions of this Warrant.

     3.   TERM.

     The purchase right represented by this Warrant is exercisable, in whole or
in part, at any time on or before the Expiration Date.

     4.   METHOD OF EXERCISE: PAYMENT: ISSUANCE OF NEW WARRANT.

     Subject to Section 3 hereof, the purchase right represented by this Warrant
may be exercised by the Holder, in whole or in part, by the surrender of this
Warrant (with the notice of exercise form attached hereto as Appendix A duly
executed) at the principal office of the Company and by the payment to the
Company, by certified check made payable to the Company drawn on a United States
bank and for United States funds, of an amount equal to the then applicable
Warrant Price per share multiplied by the number of Shares then being purchased.
In the event of any exercise of the purchase right represented by this Section
4, certificates for the Shares so purchased shall be delivered to the Holder
within thirty (30) days of receipt of such payment and, unless this Warrant has
been fully exercised or expired, a new Warrant representing the portion of the
Shares, if any, with respect to which this warrant shall not then have been
exercised shall also be issued to the Holder within such thirty (30) day period.

     5.   EXERCISE PRICE.

     The Warrant Price at which this Warrant may be exercised shall be the
Exercise Price, as adjusted from time to time pursuant to Section 6 hereof.

     6.   ADJUSTMENT OF NUMBER AND KIND OF SHARES AND ADJUSTMENT OF WARRANT
          PRICE.

     6.1  CERTAIN DEFINITIONS.  As used in this Section 6 the following terms
shall have the following respective meanings:


                                      - 2 -

<PAGE>


          (a)  OPTIONS: rights, options or warrants to subscribe for, purchase
or otherwise acquire either shares of Common Stock or Convertible Securities.

          (b)  CONVERTIBLE SECURITIES: any evidences of indebtedness, shares of
stock or other securities directly or indirectly convertible into or
exchangeable for Common Stock.

     6.2  ADJUSTMENTS.  The number and kind of securities purchasable upon the
exercise of this Warrant and the Warrant Price shall be subject to adjustment
from time to time upon the occurrence of certain events, as follows:

          (a)  RECLASSIFICATION, REORGANIZATION, CONSOLIDATION OR MERGER. In the
case of any reclassification of the Common Stock, or any reorganization,
consolidation or merger of the Company with or into another corporation (other
than a merger or reorganization with respect to which the Company is the
continuing corporation and which does not result in any reclassification of the
Common Stock), the Company, or such successor corporation, as the case may be,
shall execute a new warrant, providing that the Holder shall have the right to
exercise such new warrant and upon such exercise to receive, in lieu of each
share of the Class of Stock theretofore issuable upon exercise of this Warrant,
the number and kind of securities receivable upon such reclassification,
reorganization, consolidation or merger by a holder of shares of the same Class
of Stock of the Company for each share of the Class of Stock. The aggregate
warrant price of the new warrant shall be the aggregate Warrant Price in effect
immediately prior to the reclassification, reorganization, consolidation or
merger. Such new warrant shall provide for adjustments which shall be as nearly
equivalent as may be practicable to the adjustments provided for in this Section
6 including, without limitation, adjustments to the Warrant Price and to the
number of shares issuable upon exercise of this Warrant. The provisions of this
subsection (a) shall similarly apply to successive reclassifications,
reorganizations, consolidations or mergers.

          (b)  SPLIT, SUBDIVISION OR COMBINATION OF SHARES. If the Company at
any time while this Warrant remains outstanding and unexpired shall split,
subdivide or combine the Class of Stock for which this Warrant is then
exercisable, the Warrant Price shall be proportionately decreased in the case of
a split or subdivision or proportionately increased in the case of a
combination. Any adjustment under this subsection (b) shall become effective
when the split, subdivision or combination becomes effective.

          (c)  STOCK DIVIDENDS. If the Company at any time while this Warrant
remains outstanding and unexpired shall pay a dividend with respect to the Class
of Stock for which this Warrant is then exercisable, payable in shares of that
Class of Stock, Options or Convertible Securities, the Warrant Price shall be
adjusted, from and after the date of determination of the shareholders entitled
to receive such dividend or distributions, to that price determined by
multiplying the Warrant Price in effect immediately prior to such date of
determination by a fraction (i) the numerator of which shall be the total number
of shares of that Class of Stock outstanding immediately prior to such dividend
or distribution, and (ii) the denominator of which shall be the total number of
shares of the same Class of Stock


                                      - 3 -

<PAGE>


outstanding immediately after such dividend or distribution (including shares of
that Class of Stock issuable upon exercise, conversion or exchange of any
Options or Convertible securities issued as such dividend or distribution). If
the Options or Convertible Securities issued as such dividend or distribution by
their terms provide, with the passage of time or otherwise, for any decrease in
the consideration payable to the Company, or any increase in the number of
shares issuable upon exercise, conversion or exchange thereof (by change of rate
or otherwise), the Warrant Price shall, upon any such decrease or increase
becoming effective, be reduced to reflect such decrease or increase as if such
decrease or increase became effective immediately prior to the issuance of the
Options or Convertible Securities as the dividend or distribution. Any
adjustment under this subsection (c) shall become effective on the record date.

          (d)  EXERCISE PRICE REDUCTION. In the event the Company issues any
shares of Common Stock for cash for a per share purchase price which is less
than the Exercise Price then in effect, the Exercise Price shall be reduced from
time to time to equal the per share purchase price for such transaction(s).

     6.3  ADJUSTMENT OF NUMBER OF SHARES. Upon each adjustment in the Warrant
Price pursuant to this Section 6, the number of Shares issuable upon exercise of
this Warrant shall be adjusted to the product obtained by multiplying the number
of Shares issuable immediately prior to such adjustment in the Warrant Price by
a fraction (i) the numerator of which shall be the Warrant Price immediately
prior to such adjustment, and (ii) the denominator of which shall be the Warrant
Price immediately after such adjustment.

     6.4  NO IMPAIRMENT. The Company will not, by amendment of its Certificate
of Incorporation or through any reorganization, transfer of assets,
consolidation, merger, dissolution, issue or sale of securities or any other
voluntary action, avoid or seek to avoid the observance or performance of any of
the terms to be observed or performed hereunder by the Company but will at all
times in good faith assist in the carrying out of all the provisions of this
Section 6 and in the taking of all such actions as may be necessary or
appropriate in order to protect against impairment of the rights of the holder
of this Warrant to adjustments in the Warrant Price.

     7.   NOTICE OF ADJUSTMENTS.

     Whenever the Warrant Price shall be adjusted pursuant to Section 6 hereof,
the Company shall issue a certificate signed by an authorized executive officer
setting forth, in reasonable detail, the event requiring the adjustment, the
amount of the adjustment, the method by which such adjustment was calculated and
the Warrant Price after giving effect to such adjustment, and shall cause a copy
of such certificate to be mailed (by first class mail, postage prepaid) to the
Holder.


                                      - 4 -

<PAGE>


     8.   RIGHT TO CONVERT WARRANT INTO STOCK.

     8.1  RIGHT TO CONVERT. In addition to the rights granted under Section 4 of
this Warrant, the Holder shall have the right to require the Company to convert
this Warrant (the "Conversion Right") into shares of the Class of Stock for
which the Warrant is then exercisable, as provided in this Section 8. Upon
exercise of the Conversion Right, the Company shall deliver to the Holder
(without payment by the Holder of any Warrant Price) that number of shares of
stock equal to the quotient obtained by dividing (x) the value of this Warrant
at the time the conversion Right is exercised (determined by subtracting the
aggregate Warrant Price immediately prior to the exercise of the Conversion
Right from the aggregate fair market value of the Shares issuable upon exercise
of this Warrant immediately prior to the exercise of the Conversion Right, as
determined pursuant to Section 8.4 below) by (y) the fair market value (as
determined pursuant to Section 8.4 below) of one share of that Class of Stock
immediately prior to the exercise of the Conversion Right.

     8.2   METHOD OF EXERCISE. The Conversion Right may be exercised at any time
by the Holder by the surrender of this Warrant at the principal office of the
Company together with a written statement specifying that the Holder thereby
intends to exercise the Conversion Right. Certificates of the shares of stock
issuable upon exercise of the Conversion Right shall be delivered to the Holder
within thirty (30) days following the Company's receipt of this Warrant together
with the aforesaid written statement.

     8.3   AUTOMATIC CONVERSION PRIOR TO EXPIRATION. To the extent this Warrant
is not previously exercised, and if the fair market value of one share of Common
Stock is greater than the Warrant Price per share, this Warrant shall be deemed
automatically exercised in accordance with Section 8.1 hereof (even if not
surrendered) immediately before its expiration. To the extent this Warrant or
any portion thereof is deemed automatically exercised pursuant to this Section
8.3, the Company agrees to notify Holder within a reasonable period of time of
the number of shares of the Class of Stock, if any, Holder is to receive by
reason of such automatic exercise. The Company shall issue to the Holder
certificates for the Shares issued upon such automatic conversion in accordance
with Section 8.2 above, although the Company may condition receipt of the
certificate upon surrender of the Warrant to the company.

     8.4  VALUATION OF STOCK. For purposes of this Section 8, the fair market
value of one share of the Class of Stock issuable upon exercise of this Warrant
shall mean:

          (a)  The product of (i) the average of the closing price or, if no
closing price is reported, the closing bid and asked prices of the Common Stock,
quoted in the Over-The-Counter Market Summary, or the closing price quoted on
any exchange on which the Common Stock is listed, whichever is applicable, as
published in the Western Edition of The Wall Street Journal for the ten (10)
trading days prior to the date of determination of fair market value, and (ii)
the number of shares of Common Stock into which each share of the Class of Stock
is then convertible, if applicable;


                                      - 5 -

<PAGE>


           (b)  If the Common Stock is not traded Over-The-Counter or on an
exchange, the fair market value of the Class of Stock per share shall be as
determined in good faith by the Company's Board of Directors; provided, however,
that if the Holder in good faith disputes in writing the fair market value
determined by the Board of Directors within thirty (30) days of being informed
of such fair market value, the fair market value shall be determined by an
independent appraiser, appointed in good faith by the Company's Board of
Directors and whose reasonable expenses shall be borne equally by the Company
and the Holder.

     9.    COMPLIANCE WITH ACT: TRANSFERABILITY OF WARRANT: DISPOSITION OF
           SHARES.

     9.1   LEGENDS. The Shares issued upon exercise of this Warrant shall be
imprinted with a legend in substantially the following form:

           "THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
           1933, AS AMENDED, AND MAY NOT BE SOLD, PLEDGED OR OTHERWISE
           TRANSFERRED WITHOUT AN EFFECTIVE REGISTRATION THEREOF UNDER SUCH ACT
           OR PURSUANT TO AN OPINION OF COUNSEL, REASONABLY SATISFACTORY TO THE
           COMPANY AND ITS COUNSEL THAT SUCH REGISTRATION IS NOT REQUIRED."

     Nothing in this Warrant shall obligate the Company to effect registration
under federal or state securities law for any Shares issued upon exercise of the
Warrant.

     9.2   TRANSFERABILITY AND NON-NEGOTIABILITY OF WARRANT AND SHARES. This
Warrant and the Shares issued upon exercise thereof may not be transferred or
assigned in whole or in part without compliance with applicable federal and
state securities laws by the transferor and the transferee (including, without
limitation, the delivery of investment representation letters and legal opinions
reasonably satisfactory to the Company, if reasonably requested by the Company).
Subject to the provisions of this Section 9.2, title to this Warrant may be
transferred in the same manner as a negotiable instrument transferable by
endorsement and delivery.

     10.   MISCELLANEOUS.

     10.1  HOLDER TREATED AS OWNER.  The Holder shall be treated by the Company
and all other persons dealing with this Warrant as the absolute owner of the
Warrant for any purpose and as the person entitled to exercise the rights
represented by this Warrant, until the Warrant is transferred on the Company's
books.

     10.2  NOTICES.  Any notice or communication to be given pursuant to this
Warrant shall be in writing and shall be delivered in person or by certified
mail, return receipt requested, in the United States mail, postage prepaid.
Notices to the Company shall be


                                      - 6 -

<PAGE>


addressed to the Company's principal office. Notices to the Holder shall be
addressed to the Holder's address as reflected in the records of the Company.
Notices shall be effective upon delivery in person, or, if mailed, at midnight
on the third (3rd) business day after mailing.

     10.3  NO STOCKHOLDER RIGHTS.  This Warrant shall not entitle the Holder to
any voting rights or other rights as a stockholder of the Company.

     10.4  GOVERNING LAW: VENUE.  This Warrant shall be governed by and 
construed in accordance with the laws of the State of Minnesota as applied to 
contracts entered into between residents of the State of Minnesota to be 
wholly performed within the State of Minnesota. Venue for any suit brought 
with respect to this Agreement shall be solely in Ramsey County, Minnesota, 
where the Company's principal place of business is located.

     10.5  HEADINGS: INTERPRETATION.  The section headings used herein are for
convenience of reference only and are not intended to define, limit, or describe
the scope or intent of any provision of this Warrant. All pronouns used in the
Warrant shall be deemed to include masculine, feminine and neuter forms.

     10.6  SUCCESSORS.  The covenants, agreements, and provisions of this 
Warrant shall bind the parties hereto and their respective successors and 
permitted assigns.

     10.7  SEVERABILITY.  In the event that any one or more of the provisions
contained in this Agreement shall for any reason be held to be invalid, illegal
or unenforceable in any respect, such invalidity, illegality or unenforceability
shall not affect any other provision hereof, and this Agreement shall be
construed as if such invalid, illegal or unenforceable provision had never been
contained herein.

     10.8  REPRESENTATIONS OF THE HOLDER.  By accepting delivery of this 
Warrant, the Holder hereby reconfirms its prior representations to the 
Company that this Warrant is being acquired for investment for its own 
account and not with a view to, or for resale in connection with, any 
distribution or public offering thereof. The Holder further understands that 
this Warrant has not been registered under the Securities Act of 1933, as 
amended, or any state securities law by reason of it being issued in a 
transaction exempt from the

                                      - 7 -

<PAGE>


registration requirements. The Holder further reconfirms its prior
representations that it is qualified as an "accredited investor" for purposes of
Regulation D promulgated under the Securities Act of 1933. The Holder
acknowledges that the Company has afforded it the opportunity to make such
investigation of the Company as the Holder has deemed appropriate. The Holder
further reconfirms its prior representations that it has such knowledge and
experience in financial and business matters that it is capable of evaluating
the merits and risks of the investment.



                         ADVANCED UROSCIENCE, INCORPORATED




                         By:
                            --------------------------------


                                      - 8 -

<PAGE>


                                   APPENDIX A

                               NOTICE OF EXERCISE


TO:  Advanced UroScience, Incorporated

     1.   The undersigned hereby elects to purchase _______ shares of the Common
Stock of Advanced UroScience, Incorporated, pursuant to terms of the attached
Warrant, and tenders herewith payment of the purchase price of such shares in
full (as authorized by Section 4 thereof), together with all applicable transfer
taxes, if any.

     2.   Please issue a certificate or certificates representing said shares of
the Common Stock in the name of the undersigned or in such other name as is
specified below.

     3.   The undersigned represents it is acquiring the shares of Common Stock
solely for its own account and not as a nominee for any other party, and for
investment purposes only, not with a view toward the resale or distribution
thereof.


                         -----------------------------------
                                     (Name)

                         -----------------------------------
                                    (Address)

                         -----------------------------------

                         -----------------------------------

                         -----------------------------------
                         (Taxpayer Identification Number)



- ------------------------------
[Print name of Holder]


By:
   ---------------------------
Title:
      ------------------------
Date:
      ------------------------


                                      - 9 -

<PAGE>


                                    AGREEMENT

                FOR PURCHASE AND SALE FROM BRENNEN MEDICAL, INC.
                         OF UROLOGY BUSINESS AND ASSETS

PARTIES:  Brennen Medical, Inc.              "Brennen"
          1290 Hammond Road
          White Bear Lake, Minnesota 55110

          Advanced UroScience, Inc.          "UroScience"
          1290 Hammond Road
          White Bear Lake, Minnesota 55110

DATE:     August 1, 1994

RECITALS:

     1.   Advanced UroScience, Inc. ("UroScience") is a Minnesota business
corporation that desires to acquire certain assets of Brennen Medical, Inc.
("Brennen"), a Minnesota business corporation, and Brennen desires to sell such
assets to UroScience.

     2.   UroScience and Brennen wish to enter into mutual covenants not to
compete as a condition of this agreement.

AGREEMENTS:

     In consideration of the mutual promises and covenants herein contained, and
intending to be legally bound, the parties do hereby agree as follows:

     1.   ASSETS AND BUSINESS TO BE ACQUIRED BY UROSCIENCE.

          1.1  On the Closing Date (as hereinafter defined) UroScience shall
purchase and acquire and Brennen shall sell, assign, transfer and deliver, as
part of the purchase price herein stated, the following assets:

          All of the assets and the business owned by Brennen relating to the
          development and manufacture of urology products (all of such assets
          and business are referred to herein as the "Acquired Assets").

     UroScience shall not acquire or assume any liabilities of Brennen, except
as specifically provided in Section 2 hereof.

          1.2  The Acquired Assets include, without limitation the following:


                                      - 1 -

<PAGE>


     a.   The business of Brennen in which and for which the Acquired Assets are
          used.

     b.   All inventories of raw materials, manufacturing supplies, work-in-
          process and finished goods related to urology products and business,
          owned, controlled or in the possession of Brennen as of the "Effective
          Date" (hereinafter defined), including, without limitation, the items
          described in Exhibit A hereto.

     c.   All machinery and equipment, including, without limitation, relating
          to Brennen's urology business.  Without limitation Exhibit A hereto
          contains a substantially complete list of such assets.

     d.   All prepaid expenses recorded on the books of Brennen in accordance
          with GAAP as of the Effective Date pertaining to urology products,
          including, without limitation, advanced payments, prepaid items,
          rights to offsets and credits of all kinds, including, without
          limitation, the items described in Exhibit B hereto.

     e.   All intangible assets of Brennen, to the extent of its interest,
          pertaining to urology products, including without limitation, patents,
          patent assignments, trade names, licenses, permits, manufacturing
          rights, trademarks (including all goodwill of the business represented
          by said trademarks), copyrights, applications for any of the
          foregoing, trade secrets and inventions or discoveries or research of
          Brennen relating to urology products, and any other intellectual
          property of Brennen related to its urology business, including,
          without limitation, the assets described in Exhibit C hereto.

     f.   All supplier lists, working files and correspondence with suppliers
          (both actual and prospective, in each case), regulatory files
          (including FDA correspondence), and materials related to the urology
          assets or business.

     g.   All rights of Brennen under those certain contracts, purchase orders,
          agreements, prepaid service contracts, legally enforceable
          commitments, insurance policies, instruments, and other binding
          arrangements owned or controlled by Brennen relating to the urology
          assets or business.

          1.3  Notwithstanding the foregoing, the Acquired Assets shall not
include any of the following assets (which are referred to herein as the
"Excluded Assets"):

     a.   Any assets related to the production, manufacture, marketing,
          distribution or sale of wound care products.

     b.   Corporate record books of Brennen itself; original copies of financial
          and income tax records of Brennen, and records of employees.


                                      - 2 -

<PAGE>


     c.   All shares of Brennen, and all assets and liabilities of such
          corporation.

     d.   All cash and cash equivalents of any kind and all accounts receivable.

     e.   Deferred income taxes and net operating loss carry forwards of
          Brennen.

     UroScience shall not acquire any liabilities of Brennen except as
specifically provided in Section 2 hereof.

     2.   LIABILITIES OF BRENNEN TO BE ACQUIRED AND ASSUMED BY UROSCIENCE.

          On the Closing Date, UroScience shall acquire and assume, as part of
its obligations under this contract, the following outstanding or contingent
liabilities of Brennen (referred to herein as the "Acquired Operating
Liabilities"):

     a.   All liabilities and obligations relating to UroScience's ownership or
          use of the Acquired Assets after the Effective Date.

     b.   UroScience shall not acquire any other liabilities of Brennen.

     3.   PURCHASE PRICE.

          The purchase price for the assets described in Sections 1.1 and 1.2
here of shall be $300,000, (referred to herein as the "Purchase Price").

     4.   PAYMENT OF PURCHASE PRICE.

          The Purchase Price shall be delivered to Brennen by UroScience as
follows:

     a.   $300,000 by Secured Promissory Note (the "Note"), secured by a
          security agreement with respect to the Acquired Assets.  The Note
          shall take the form of Exhibit D hereto.

     5.   EFFECTIVE DATE.

          The economic risks and rewards resulting from the operation and
ownership of the Acquired Assets shall pass from Brennen to UroScience as of
12:01 am., August 1, 1994 (referred to herein as the "Effective Time" or
"Effective Date").

          Subsequent to the Effective Time, all profits and losses, obligations,
benefits and responsibilities resulting from the ownership, control and
operation of the Acquired Assets and the Acquired Liabilities shall belong to
UroScience, except as specifically provided in Section 1.2 hereof.


                                      - 3 -

<PAGE>


     6.   CLOSING.

          Subject to the terms and conditions hereof, the closing (referred to
herein as the "Closing" or the "Closing Date") of the transactions herein
contemplated shall take place at the office of Brennen, 1290 Hammond Road, White
Bear Lake, MN 55110, at 11:00 am., Minnesota Time, on August 1, 1994 or at such
other date, place and time as the parties shall mutually agree upon.

     7.   DELIVERIES AT CLOSING.

          7.1  At Closing, UroScience shall deliver to Brennen the following:

     a.   The Note, in the form of Exhibit D hereto.

     b.   The Security Agreement, in the form of Exhibit E.

     c.   Such other documents as may reasonably be required.

          7.2  At Closing, Brennen shall deliver to UroScience the following:

     a.   Such bills of sale, assignments, instruments of conveyance or other
          documents as may reasonably be needed to transfer the Acquired Assets
          and the Acquired Liabilities to UroScience.

     b.   Such other documents as may reasonably be required.

     8.   REPRESENTATIONS AND WARRANTIES OF BRENNEN.

          8.1  Brennen represents and warrants to UroScience as follows:

     a.   Brennen is a corporation duly organized, validly existing and in good
          standing under the laws of the State of Minnesota.

     b.   Brennen has the corporate power and authority, to execute and to
          perform all of the terms and conditions of this Agreement which are to
          be performed by it, and has obtained any necessary authorization for
          the same.

     c.   Brennen has good and marketable title to all of the assets and
          properties which are to be sold and transferred to UroScience pursuant
          to this Agreement, and such assets and properties are not subject to
          any lien, claim, charge, security interest or any other encumbrance
          whatsoever, and Brennen has the free and unrestricted right to
          transfer and assign the same in accordance with the terms hereof
          without the consent or approval of any other party, however, Brennen
          disclaims any warranties regarding intellectual property infringement.


                                      - 4 -

<PAGE>


     d.   The execution, delivery and performance of this Agreement have been
          duly authorized by the Board of Directors of Brennen, and it is a
          valid and binding obligation of Brennen, and is enforceable in
          accordance with its terms.  The execution, delivery, and performance
          of this Agreement, and compliance with its terms and provisions will
          not violate or conflict with any provisions of the Articles of
          Incorporation or Bylaws of Brennen, nor with any agreements,
          instruments, covenants or conditions to which it is a party or by
          which it is bound.

     9.   REPRESENTATIONS AND WARRANTIES OF UROSCIENCE.

          9.1  UroScience represents and warrants to Brennen as follows:

     a.   UroScience is duly organized, validly existing and in good standing
          under the laws of the State of Minnesota.

     b.   The execution, delivery and performance of this Agreement have been
          duly authorized by the Board of Directors of UroScience, and it is a
          valid and binding obligation of UroScience, and is enforceable in
          accordance with its terms.  The execution, delivery, and performance
          of this Agreement, and compliance with its terms and provisions will
          not violate or conflict with the Articles of Incorporation or Bylaws
          of UroScience, nor any agreements, instruments, covenants or
          conditions to which it is a party or by which it is bound.

     c.   UroScience's obligations hereunder are not in any way contingent upon
          the tax effect of any transaction hereunder.

     10.  AGREEMENTS OF BRENNEN.

          10.1 Brennen shall cooperate with representatives of UroScience in
making the transition from Brennen to UroScience during the period between the
date hereof and for a period 90 days following the Closing Date.

          10.2

     a.   Brennen acknowledges and agrees (a) that the bankers and/or
          independent auditors of UroScience may need to conduct, at
          UroScience's expense, an audit of Brennen books and records with
          respect to the Acquired Assets and Acquired Liabilities as of August
          1, 1994; and (b) that Brennen will provide all such books, records and
          information to such bankers and/or auditors as may be needed in order
          to conduct an audit of the financial records of Brennen's urology
          business as herein defined and as recorded in accordance with
          generally accepted accounting principles, and to cause Brennen
          officers


                                      - 5 -

<PAGE>


          and employees to respond to all such requests for information as may
          be customarily made in the course of such an audit.

     b.   Brennen agrees, for three years following Closing, to maintain and to
          preserve and to grant to UroScience access to its financial books and
          records, such that UroScience can obtain and copy information relating
          to the Acquired Assets.  Such information and documents to be used
          only for UroScience's internal purposes and to be held in confidence.

          10.3 Brennen agrees to provide to UroScience, for up to 90 days after
Closing, the services of those Brennen employees as may reasonably be required
for the conduct of normal business, such services to be provided without cost to
UroScience, it being understood that any testing expenses or outside costs to be
the responsibility of UroScience.

          10.4 Brennen will lease a reasonable portion of the White Bear
Property to UroScience, suitable for its current purposes, up to November 1,
1994, without requiring the payment of any rent or expenses, UroScience to keep
such space in a good state of repair and clearness.

     11.  AGREEMENTS OF UROSCIENCE.

          11.1 UroScience shall be responsible for securing and maintaining
products liability insurance for all products liability and warranty claims made
after the Effective Date relating to products made, sold, or owned by UroScience
after the Effective Date.

          11.2 Although exemptions appear to be available from any possible
obligation to pay Minnesota sales taxes with respect to any tangible personal
property sold hereunder, UroScience acknowledges that it bears the risk of any
terse determination by the Minnesota Department of revenue with respect thereto.

     12.  MUTUAL PROVISIONS AS TO CONFIDENTIAL INFORMATION.

     a.   Brennen covenants and agrees that it will not, after the Effective
          Date and for a minimum period of five(5) years after the date hereof,
          disclose any information concerning the trade secrets, confidential or
          proprietary information, or other information relating to the
          operation of the Acquired Assets (the "UroScience Confidential
          Information"), or allow access to the UroScience Confidential
          Information by, any person, firm, corporation or other entity, nor
          shall Brennen use the UroScience Confidential Information to the
          detriment of UroScience; provided , however, that Brennen shall not
          have any restrictive obligation with respect to any UroScience
          Confidential Information which is contained in a printed publication
          available to the general public, or is or becomes publicly known
          through no wrongful act or omission of Brennen, or is known by Brennen
          without any proprietary restrictions by


                                      - 6 -

<PAGE>


          UroScience at the time of receipt thereof, and UroScience confirms the
          lack of such restrictions in writing.

     b.   UroScience covenants and agrees that it will not, after the Effective
          Date and for a minimum period of five(5) years after the date hereof,
          disclose any information concerning the customers, trade secrets,
          merchandising techniques, confidential or proprietary information, or
          other information relating to the operation of Brennen other than with
          respect to the Acquired Assets (the "Brennen Confidential
          Information"), or allow access to the Brennen Confidential Information
          by any person, firm, corporation, or other entity, nor shall
          UroScience use the Brennen Confidential Information to the detriment
          of Brennen; provided, however, that UroScience shall not have any
          restrictive obligation with respect to any Brennen Confidential
          Information which is contained in a printed publication available to
          the general public, or is or becomes publicly known through no
          wrongful act or omission of UroScience, or is known by UroScience
          without any proprietary restrictions by Breenen at the time of receipt
          thereof and Brennen confirms the lack of such restrictions in writing.

     13.  MUTUAL NON-COMPETE PROVISIONS.

          13.1 Non-Compete by Brennen.

          Brennen covenants and agrees that, neither Brennen, nor any business
directly or indirectly controlled by Brennen shall, after the Effective Date and
for a period of five (5) years after the date hereof, (i) directly or indirectly
own, control, manage, or operate, or participate in the ownership, control,
management or operation of, any Competitive Urology Business (defined below),
(ii) induce employees, officers, consultants or agents of UroScience or any
affiliate of UroScience to terminate their employment or business relationship
with or compete against UroScience or any affiliate of UroScience or (iii)
solicit the business of any customer, supplier, or joint venturer of UroScience
or any affiliate of UroScience in connection with any Competitive Business.

          "Competitive Urology Business" shall mean any business that sells, or
attempts to sell, any goals or services that compete in any way with the sale,
or attempted sale, of products related to the practice of urology.
Notwithstanding the foregoing, the ownership of less than one percent (1%) of
any outstanding class of equity securities of a Competitive Business whose stock
is actively traded on a stock exchange or in the over-the-counter market shall
not be deemed a violation of Brennen's covenant under this Section.

          13.2 Remedies.

          Brennen acknowledges that the restrictions and covenants contained in
this Section 13 are reasonable and necessary to protect the legitimate interests
of UroScience and


                                      - 7 -

<PAGE>


Brennen understands and agrees that the remedies at law for any violation of the
restrictions or covenants of such Section may be inadequate, that such
violations may cause irreparable injury within a short period of time and that
UroScience or any other entity entitled to the protection afforded by such
Section shall be entitled to preliminary injury relief and other injunctive
relief against such violation without the necessity of proving actual damages.
Such injunctive relief shall be in addition to and not in limitation of any and
all remedies UroScience or such other entities shall have at law and in equity
for the enforcement of such restrictions and covenants.  Nothing in this
Agreement shall be construed as prohibiting UroScience from pursuing any other
remedies available to UroScience in the event of any breach or threatened breach
of this Agreement by Brennen, including the recovery of damages from Brennen.



          13.3 Non-Compete by UroScience.

          UroScience covenants and agrees that, neither UroScience nor any
business directly or indirectly controlled by UroScience shall, after the
Effective Date and for a period of five (5) years after the date hereof, (i)
directly or indirectly own, control, manage, or operate, or participate in the
ownership, control, management, or operation of, any Competitive Business
(defined below), (ii) induce employees, officers, consultants or agents of
Brennen or any affiliate of Brennen to terminate their employment or business
relationship with or compete against Brennen or any affiliate of Brennen or
(iii) solicit the business of any customer, supplier or joint venturer of
Brennen or any affiliate of Brennen in connection with any Competitive Business.

          "Competitive Business" shall mean any business that sells, or attempts
to sell, any goods or services that compete in any way with the sale, or
attempted sale, of products related to Brennen's wound care products business.
Notwithstanding the foregoing, the ownership of less than one percent (1%) of
any outstanding class of equity securities of a Competitive Business whose stock
is actively traded on a stock exchange or in the over-the-counter market shall
not be deemed a violation of UroScience's covenant under this Section.

          13.4 Remedies

          UroScience acknowledges that the restrictions and covenants contained
in this Section 13 are reasonable and necessary to protect the legitimate
interests of Brennen and UroScience understands and agrees that the remedies at
law for any violation of the restrictions or covenants of such Section may be
adequate, that such violations may cause irreparable injury within a short
period of time and that Brennen or any other entity entitled to the protection
afforded by such Section shall be entitled to preliminary injunctive relief and
other injunctive relief against such violation without the necessity of proving
actual damages.  Such injunctive relief shall be in addition to and not in
limitation of any and all remedies Brennen or such other entities shall have at
law and in equity for the enforcement of such restrictions and covenants.
Nothing in this Agreement shall be construed as


                                      - 8 -

<PAGE>


prohibiting Brennen from pursuing any other remedies available to Brennen in the
event of any breach or threatened breach of this Agreement by UroScience
including the recovery of damages from UroScience.

     14.  CONDITIONS TO THE OBLIGATIONS OF BRENNEN AT THE CLOSING DATE

          The obligations of Brennen to convey, transfer and assign the
properties, assets and business described herein shall be subject, in discretion
of Brennen, to the satisfaction at or prior to Closing of the following
conditions:

     a.   The representations and warranties of UroScience contained in this
          Agreement shall be true on and as of the Closing Date and there shall
          have been no material breach thereof.

     b.   UroScience shall have performed and satisfied all agreements and
          conditions required by this Agreement to be performed and satisfied
          prior to or at the Closing Date.

     15.  CONDITIONS TO THE OBLIGATIONS OF UROSCIENCE AT THE CLOSING DATE.

          The obligations of UroScience to acquire the assets described in this
Agreement and to make payment for such assets in accordance with this Agreement
shall, in the discretion of UroScience and be subject to the satisfaction at or
prior to the Closing Date of the following conditions:

     a.   The representations and warranties of Brennen contained in this
          Agreement shall be true on and as of the Closing Date and there shall
          have been no material breach thereof.

     b.   Brennen shall have performed and satisfied all agreements and
          conditions required by this Agreement to be performed and satisfied by
          it prior to or at the Closing Date.

     c.   Brennen shall have obtained the signed consent of all persons that may
          be needed to transfer any of the Acquired Assets.

     17.  MISCELLANEOUS.

          17.1 SURVIVAL OF REPRESENTATIONS AND WARRANTIES.

          All representations and warranties made by Brennen and UroScience,
herein shall survive the Closing Date.

          17.2 BROKERS AND FINDERS.


                                      - 9 -

<PAGE>


          Each party represents and warrants that all negotiations relative to
this Agreement have been carried on by each directly with the other without the
intervention of any other person and that there will be no brokerage commissions
or finder's fees payable in connection with the transactions contemplated by
this Agreement

          17.3 NOTICES.

          Any notice, request, instruction or consent to be given to either
party shall be in writing and deliver personally or sent by registered mail,
postage prepaid, as follows unless otherwise directed in writing by any
recipient:

     To Brennen     Brennen Medical, Inc.
                    1290 Hammond Road
                    White Bear Lake, MN 55110

     To UroScience  Advanced UroScience, Inc.
                    1290 Hammond Road
                    White Bear Lake, MN 55110


          17.4 COUNTERPARTS.

          This Agreement may be executed in one or more counterparts each of
which shall be deemed an original.

          17.5 ENTIRE AGREEMENT.

          This Agreement sets forth the entire understanding between the
parties.  There are no terms, conditions, warranties or representations other
than those contained herein which are binding on the parties.  No amendment to
this Agreement shall be valid unless made in writing and signed by the parties.

          17.6 APPLICABLE LAW, BINDING EFFECT.

          This Agreement shall be governed, construed and enforced in accordance
with the laws of the State of Minnesota, and shall be enforceable by and binding
upon the parties hereto and their respective successors and assigns.


          IN WITNESS WHEREOF, the parties have duly executed this Agreement on
the date first above written.


                                     - 10 -

<PAGE>


In the Presence of:           ADVANCED UROSCIENCE, INC.


/s/ Teresa M. Studer          By: /s/ Dean Klein
- -------------------------        ---------------------------


                              BRENNEN MEDICAL, INC.


/s/ Teresa M. Studer          By: /s/ Timothy P. Lawin
- -------------------------        ---------------------------


                                     - 11 -

<PAGE>


Exhibit A



                      FIXED ASSETS OF THE UROLOGY BUSINESS



ASSET DESCRIPTION                                   AMOUNT
- ------------------------------------------------------------

Liberty Class 1,000 Clean Room 12' x 15'          $21,760.00

Bard HVAC System, #063P890632597                   10,200.00

NuAir Laminar Flow Cabinets (2 each)
#16895TT/16896TT                                   11,400.00

Liberty HEPA Modules (11 each), #Max 8000           6,985.00

Stainless Steel Work Bench                          1,100.00

Air Lift Clean Room Chairs (2 each) Ajusto 22561      605.00

Cubicle Walls, Work Tops, Files, Desks              7,550.00

                                                    --------


For a total amount of                             $59,600.00
                                                  ----------
                                                  ----------


<PAGE>


Exhibit B



                              PREPAID ASSETS OF THE
                      UROLOGY BUSINESS AS OF AUGUST 1, 1994



ASSET DESCRIPTION                                   AMOUNT
- ------------------------------------------------------------

Facility rent through October 31, 1994            $ 4,000.00

Secretarial Services/Administrative Support
     Through October 31, 1994                       4,000.00

Regulatory/Quality Assurance Support
     Through October 31, 1994                      12,000.00

Administrative Salary through October 31, 1994     36,000.00

Supplies, Inventory, Product                        4,400.00

                                                   ---------

Book value of Prepaids                            $60,400.00
                                                  ----------
                                                  ----------


<PAGE>


Exhibit C

                        INTANGIBLE ASSETS OF THE UROLOGY
                          BUSINESS AS OF AUGUST 1, 1994

ASSET DESCRIPTION                                   AMOUNT
- -------------------------------------------------------------

Pending patent application dated July 14, 1994    $180,000.00

<PAGE>


                                    ADVANCED
                                   UROSCIENCE

                       A DIVISION OF BRENNEN MEDICAL, INC.


                              EMPLOYMENT AGREEMENT

     THIS AGREEMENT is made and entered into as of the 1st day of August, 1994,
by and between Advanced UroScience, Inc., a Minnesota corporation, ("Employer"),
and Dean Klein, a Minnesota resident ("Employee").

     WHEREAS, Employer desires to retain the personal services of Employee and
Employee has agreed to provide such service as set forth herein;

     WHEREAS, Employer has shares of Common Stock outstanding, and desires to
grant to Employee an equity interest of the corporation, effective as of the
date hereof;

     NOW THEREFORE, in consideration of the terms and conditions contained
herein, the parties agree as follows:

     1.   EMPLOYMENT.  During the term of this Agreement, Employee shall serve
as CEO and President of Employer and shall assume and perform the duties and
responsibilities incidental to such position, or such other duties commensurate
with Employee's position and as reasonably assigned to him from time to time by
Employer.  Employee shall use his best efforts in the performance of his duties,
and shall spend substantially his full time in connection therewith, except in
the event of illness, disability, vacation or other absence permitted by
Employer.

     2.   TERM.  This Agreement shall be effective from the date hereof through
August 31, 1996, and may be terminated prior to said expiration date only upon
the occurrence of one or more of the following events:

          A.   By mutual written agreement of Employer and Employee;

          B.   By Employee at any time upon at least 60 days' prior written
               notice to Employer;

          C.   Immediately upon Employee's death;

          D.   At Employer's option, with good cause, upon written notice to
               Employee.  "Good cause", for purposes of this Agreement, shall
               include, but not be limited to:

               i.   The Employee's theft or embezzlement of money or property of
                    the Employer.


<PAGE>


               ii.  The conviction of the Employee of a felony or misdemeanor
                    which impairs his ability substantially to perform his
                    duties with the Company, or results in material injury to
                    the property or operations of the Company.

               iii. Employee has engaged in willful and material misconduct
                    affecting the Employer, including willful and material
                    failure to perform his duties as an employee of the Company.

               iv.  The performance of his duties with negligence, gross
                    negligence or intentional fault.

               v.   A material default of the Employee in the performance or
                    observance of any promise or understanding of the Employee
                    under this Agreement (including, without limitation, the
                    Employee's failure to follow the instructions of the 
                    Chairman of the Board) after a notice specifically 
                    identifying the manner in which the Employer believes that 
                    the Employee has caused such default, and after the Employee
                    has failed to cure such default within seven (7) days of 
                    receiving such notice.

               vi.  Activities by the Employee inimical to the interests of the
                    Employer.

               vii. Failure of the Employee to be available for performance of
                    duties hereunder (without the prior consent of the Chairman
                    of the Board) for two consecutive months or for four months
                    out of any twelve consecutive months, in either case where
                    such failure to be available does not result, in the opinion
                    of the Chairman of the Board, from the disability of the
                    Employee.

                    If the Employee disputes the existence of "good cause" as
                    defined in this subparagraph (d), the question shall be
                    submitted to a Board of Arbitrators, one of whom shall be
                    selected by each of the parties hereto and the third of whom
                    shall be selected by the two so appointed; if the first two
                    arbitrators are unable to agree upon the third arbitrator,
                    such third arbitrator shall be selected by the senior judge
                    of the Hennepin County District Court.  The Board of
                    Arbitrators shall determine whether or not "good cause" (as
                    herein defined) for termination of this Agreement exists and
                    shall render its written decision, by majority vote, within
                    sixty (60) days after the appointment of the third
                    arbitrator.  Such arbitration shall be governed by the
                    provisions of Minnesota Statutes (Uniform Arbitration Act)
                    and such other rules not inconsistent therewith as the Board
                    may establish.  Each party shall have the right to appear
                    before the


<PAGE>


                    Board, with legal counsel, and to submit evidence and
                    argument bearing upon the existence or nonexistence of "good
                    cause" for termination.  The fees and costs incurred in any
                    such arbitration proceeding shall be paid by the
                    nonprevailing party or as the Board of Arbitrators otherwise
                    specifies.

          E.   If the Employer shall become bankrupt, insolvent, make an
               application for winding up of its business or decides not to
               pursue the current business of injectable micro particles for the
               treatment of urinary incontinence.

     3.   SEVERANCE PAYMENTS.  Employer and Employee share a firm commitment and
          expectation for a successful relationship.  However, in recognition of
          the risk to Employee of becoming associated with a company in this
          competitive field, the Employer agrees that, in the event Employee is
          involuntarily terminated before the termination of this Agreement or
          any extensions thereof, for reasons other than willful and material
          misconduct, gross negligence or intentional fault, Employee will be
          provided with severance pay.  Such severance pay will be equal to four
          months' salary at the time of termination.

     4.   COMPENSATION.

          A.   SALARY.  As gross compensation for services rendered during the
               first and second year that this Agreement is in effect, Employee
               shall receive $75,000 per annum payable in the same manner and
               frequency as other employees of Employer, but in any event not
               less than monthly on or before the first day of each month.  Upon
               completion of each year of employment, Employee's compensation
               shall he reviewed and may be increased (but not decreased) by
               Employer, in its discretion.

          B.   BONUS.  Employee shall receive a signing bonus of $25,000 on or
               about September 1, 1994.  Additional performance bonus programs
               may be initiated at the discretion of the Board.

          C.   EQUITY.  Hereinafter stated, and in consideration of his promise
               and agreement to perform their Employment Agreement according to
               its terms, Employee is granted options for 200,000 shares of the
               Company's common stock at a price of 1.25 per share (See stock
               option agreement).

    5.    BENEFITS.  Employee shall receive the following benefits:

          a.   Fifteen days of paid vacation during each of Employer's fiscal
               years, plus paid public holidays to include New Year's Day,
               Memorial Day, Independence Day, Labor Day, Thanksgiving Day,
               Christmas Day, and


<PAGE>


               two additional days to be selected by Employee by reasonable
               notice to Employer;

          b.   Up to six paid sick days per year;

          c.   Fully paid family coverage (subject to applicable employee
               deductibles under Employer's group medical and dental plans).

          d.   A monthly automobile allowance of $550.

          e.   Reimbursement for reasonable and necessary meals, travel,
               lodging, and entertainment expenses, property documented and
               actually incurred by Employee in connection with the affairs of
               Employer.

          f.   Such other employment benefits as may be made available to other
               employees of Employer.

     6.   PROTECTION OF EMPLOYER'S TRADE SECRETS.  Employee hereby reaffirms his
confidentiality and patent assignment obligations under that certain Employee
Patent and Confidential Information Agreement executed by the parties.

     7.   COVENANT NOT TO COMPETE.

          a.   The Employee agrees that during his employment by the Company and
               for a period of one year after termination of the Employment
               Period, he shall not, without the prior written consent of the
               Company, directly or indirectly and whether as principal or as
               agent, officer, director, employee, consultant, or otherwise,
               alone or in association with any other person, carry on, be
               engaged, concerned, or take part in, render services to, or own,
               share in the earnings of or invest in the stocks, bonds or other
               securities of any person engaged in the Employer's current
               business or reasonably contemplated business activities provided,
               however, that the Employee may invest in stocks, bonds or other
               securities of any Similar Business (but without otherwise
               participating in such Similar Business) if: (i) such stocks,
               bonds or other securities are publicly traded; (ii) his
               investment does not exceed, in the case of any class of the
               capital stock of any one issuer, 1% of the issued and outstanding
               shares, or in the case of bonds or other securities, 1% of the
               aggregate principal amount thereof issued and outstanding; and
               (iii) such investment would not prevent, directly or indirectly,
               the transaction of business by the Company within any state,
               district, territory, or possession of the United States or any
               governmental subdivision, agency, or instrumentality thereof by
               virtue of any statute, law, regulation or administrative
               practice.  The period of time during which the Employee is
               prohibited from engaging in certain


<PAGE>


               activities by this Section shall be extended by the length of
               time during which he is in breach of the terms of their Section.

     8.   COVENANT TO REPORT.  The Employee shall promptly communicate and
disclose to the Company all information regarding the business or affairs of the
Company obtained by him in the course of his employment by the Company.  All
written materials, records and documents made by the Employee or coming into his
possession during the employment period concerning the business or affairs of
the Company shall be the sole property of the Company and, upon the termination
of the employment period or upon the request of the Company during the
employment period, the Employee shall promptly deliver the same to the Company.
The Employee agrees to render to the Company such reports of the activities
undertaken by the Employee or conducted under the Employee's direction pursuant
hereto during the employment period as the Employer may reasonably request.

     9.   ASSIGNMENT.  This Agreement may not be assigned by either party
without the written consent of the other party.  Subject to the foregoing, this
Agreement is binding upon any heirs, successors, or assigns of the parties.

     10.  LEGALITY.  The parties covenant and agree that the provisions
contained herein are reasonable and are not known or believed to be in violation
of any federal or state law or regulation.  In the event a court of competent
jurisdiction finds any provision contained herein to be illegal or
unenforceable, such court may modify such provision to make it valid and
enforceable.  Such modification shall not affect the remainder of their
Agreement which shall continue at all times to be valid and enforceable.

     11.  INTERPRETATION.  This Agreement constitutes the entire agreement
between the parties and supersedes any prior oral or written agreements between
the parties regarding Employee's employment, except for the confidentiality and
patent assignment agreement referenced in Section 5.  This Agreement can only be
modified by a writing signed by both parties.  This Agreement shall be
interpreted in accordance with and governed by the laws of the State of
Minnesota.

     12.  JURISDICTION.  The parties agree that all disputes under this
Agreement shall be resolved in the applicable federal or state courts venued in
Hennepin County, Minnesota, and each party agrees to submit to the jurisdiction
of said courts and to accept service of process for actions commenced in said
courts.

     13.  NOTICES.  All notices required or delivered under this Agreement shall
be delivered personally, sent via facsimile, overnight courier or first class
mail, postage prepaid to the addresses set forth in this Agreement, or such
other addresses as may be designated by either party via a notice delivered
under this Section.  All notices shall be deemed to have been given upon
delivery for personally delivered notices, and on the day after transmission via
facsimile, or delivery to overnight courier or deposit in the U.S. mail.

     IN WITNESS WHEREOF, the parties have caused the execution of the Agreement
as of the day and year first above written.


<PAGE>



EMPLOYEE                           Advanced UroScience, Inc.


/s/ Dean Klein                     By: /s/ Timothy P. Lawin
- -------------------------             ---------------------------
Dean Klein                         Timothy P. Lawin
CEO and President                  Chairman of the Board


<PAGE>





May 1, 1996



Pursuant to Section 2., Part A of Employment Agreement between Advanced
UroScience, Inc. and Dean Klein dated August 1, 1994, consent is hereby
granted by both parties to terminate such agreement effective immediately.



    /s/  DEAN KLEIN
- --------------------------------------
         Dean Klein


    /s/  TIM LAWIN
- --------------------------------------
Advanced UroScience, Inc. by Tim Lawin


552791



<PAGE>


                                 LEASE AGREEMENT


     This LEASE AGREEMENT (hereinafter called "LEASE" made as of the 1st day of
May, 1996, by and between: Lawin Enterprises, Inc., a Minnesota corporation
(hereinafter called "Landlord"), and Advanced UroScience Inc. (hereinafter
called "Tenant").

WITNESSETH

IN CONSIDERATION OF THE TERMS AND CONDITIONS IN THIS LEASE;
the parties hereto mutually agree and covenant as follows:

DATA SHEET

     (1)  PREMISES: The area set forth on Exhibit "A" hereto, and described
thereon, located in the Lawin Enterprises Building, in the Township of White
Bear Lake, State of Minnesota, Ramsey County, with a street address and suite
number of 1290 Hammond Road, Suite 100, St. Paul, Minnesota 55110.

     (2)  TERM: Two (2) years, commencing on May 1, 1996, (hereinafter referred
to as the Commencement Date) and terminating on May 1, 1998 (hereinafter
referred to as the Termination Date).

     (3)  DELIVERY DATE: May 1, 1996.

     (4)  PERMITTED USE: The Premises shall be used by the Tenant
solely for: Office, manufacturing and distribution uses.

     (5)  TENANT NAME: Tenant shall operate and do business in the Premises and
all signs and advertising shall be under the trade name: Advanced UroScience,
Inc.  Any signage displayed by Tenant shall be subject to prior approval of
Landlord, which shall not be unreasonably withheld.

     (6)  ANNUAL RENT: During years one and two, the rent shall be $36,000
annually; payable monthly in equal installments as provided in Article 3.

     Tenant shall be responsible for all utilities charges related to the
Premises.

     (7)  SECURITY DEPOSIT: Not applicable.

     Each reference in this Lease to any of the data contained in this Data
Sheet shall be construed to incorporate the data stated under that title.


<PAGE>


                                    ARTICLE 1
                                DEMISED Premises

     Landlord does hereby demise and lease to Tenant the premises shown on
Exhibit "A", hereto attached and described thereon and made a part hereof.

                                    ARTICLE 2
                                      TERM

     TO HAVE AND HOLD for a Term beginning at the Commencement Date as set forth
on the Data Sheet of this Lease Agreement and continuing until the Termination
Date as set forth on said Data Sheet.

                                    ARTICLE 3
                          RENTS, UTILITIES AND INTEREST

     Tenant covenants and agrees to pay Landlord, without set-off, deduction or
demand, at the address set out in the heading of this Lease, or at such other
place as Landlord may designate in writing to Tenant, rental at the following
rates and times:

     (A)  Annual Rent: Tenant shall pay annually during the Term of this Lease
the sum specified on the Data Sheet as Annual Rent, which sum shall be payable
in equal monthly installments, on or before the first day of each month, in
advance.

     (B)  Other Charges; Utilities: (including heat, air-conditioning, gas,
water, sewer and electricity) are included in the monthly installment of Annual
Rent, unless a different time for such payment is specified in this Lease.

     (C)  Interest.  Any amount due from Tenant to Landlord under this Lease
which is not paid when due shall bear interest at the highest legal rate from
the date due until paid; provided, however, the payment of such interest shall
not excuse or cure the default upon which such interest accrued.  No interest
shall begin to accrue until 10 days after written notice by Landlord to Tenant,
and then only if Tenant has failed to pay such rent.

                                    ARTICLE 4
                                  IMPROVEMENTS


     (a)  Parking Facilities

     Landlord shall provide reasonable parking space for Tenant's needs.

     (b)  Improvements

     Tenant shall have the right to utilize the existing improvements to the
leased space.  Any additional improvements shall be the expense of the tenant.


<PAGE>


                                    ARTICLE 5
                                     DAMAGES

     The tenant shall have no claim whatsoever for damages against Landlord for
any delay in the date on which the premises shall be ready for occupancy for
Tenant.

                                    ARTICLE 6
                              CONDITION OF PREMISES

     (a)  Tenant's taking of possession of the premises shall be conclusive
evidence of Tenant's acceptance thereof in good order and satisfactory
condition, unless Tenant gives Landlord notice of any problems or defects in
writing, within 60 days after May 1, 1996.

     (b)  Landlord represents, warrants, and covenants that the premises and the
building are of good quality, comply with applicable laws and regulations, and
that all structural features and functional systems are in good condition.

                                    ARTICLE 7
                                  COMMON AREAS

     (a)  Landlord hereby grants to Tenant, its employees, agents, customers and
invitees, the non-exclusive right for and during the term of this Lease and any
renewal thereof to use the parking area, lunch room, and other common areas from
time to time constituted, such use to be common with Landlord and all tenants of
Landlord from time to time, its and their employees, agents, customers and
invitees, except when the same are being repairs

     (b)  Landlord agrees to manage, operate and maintain at its expense during
the term of this Lease and any renewal thereof all parking areas, roads,
sidewalks, landscaping and draining.  The manner in which such areas and
facilities shall be maintained and the expenditures therefor shall be at the
sole discretion of Landlord.  However, Landlord will maintain such area in a
first class manner.

                                    ARTICLE 8
                                      TAXES

     Tenant shall pay no real estate related taxes and assessments against the
land, building or improvements that are levied or assessed by any lawful
authority during each calendar year during the Term of this Lease.

                                    ARTICLE 9
                   LANDLORD WARRANTIES AND LEASE SUBORDINATION

     Landlord hereby warrants, so long as Tenant shall perform each and every
covenant to be performed by Tenant hereunder, Tenant shall have peaceful and
quiet use and possession of the Premises without hindrance on the part of the
Landlord or others, and Landlord shall warrant and defend Tenant in such
peaceful and quiet use and possession.


<PAGE>


     Landlord reserves the right to subordinate or sell this Lease at all times
to any other party the lien of any mortgage, or mortgages, trust deed or trust
deeds now or hereafter placed upon the premises, and Tenant covenants and agrees
to execute and deliver, upon demand, such reasonable further instruments
subordinating this Lease to the lien of any such mortgage, mortgages, trust deed
or trust deeds as shall be reasonably desired by Landlord, or any mortgagees or
proposed mortgagees or trustees under trust deeds.  Landlord shall pay Tenant's
reasonable fees for legal review each time such subordination is requested.
Landlord shall furnish Tenant evidence that Tenant shall have the right to
remain in possession of the premises under the terms of this Lease and Tenant's
quiet enjoyment of the premises shall not be adversely affected, notwithstanding
any default in any such mortgage, mortgages, trust deed or trust deeds, or after
foreclosure thereof, so long as tenant is not in default under any of the
covenants, conditions, and agreements contained in this lease.

     Notwithstanding anything herein contained to the contrary, Tenant's
obligations herein shall not be terminated or mitigated in any way by reason of
the foreclosure of any mortgage of the Landlord or its successor in title.

                                   ARTICLE 10
                       REPAIR AND MAINTENANCE OF PREMISES

     Except for any structural matters, roof, existing heating, existing
ventilating, existing air conditioning, existing electrical, existing plumbing
and except as provided in Article 14 hereof, Tenant shall, at Tenant's expense
at all times keep the demised premises and appurtenances thereto in good order,
condition, and repair, clean and sanitary and safe, including the replacement of
interior equipment, interior fixtures, and all broken glass (with glass of the
same size and quality) and shall repair and replace all doors, windows, frames
and related items in a manner satisfactory to Landlord.

                                   ARTICLE 11
                               DAMAGE TO PREMISES

     In case the premises are damaged by fire, explosion or other casualty or
occurrence to the extent of twenty-five percent (25%) or less of the insurable
value of the premises, the damage shall promptly be repaired by Landlord at
Landlord's expense in no event longer than 90 days after the casualty event.  In
the event the premises shall be damaged to the extent of more than twenty-five
(25%) of the insurable value, or the building of which the premises are a part
is damaged to the extent of twenty-five (25%) or more of the insurable value,
Landlord may elect either to repair or rebuild the premises or the building or
to terminate this Lease upon giving notice of such election in writing to Tenant
within thirty (30) days after the happening of the event causing the damage.
Tenant shall have the same right to elect termination of this Lease.  If the
casualty or the repairing or rebuilding shall render the premises untenantable
in whole or in part, a proportionate abatement of the minimum annual rent shall
be allowed from the date when the damage occurred until the date when the
premises are again made tenantable, or until the effective date of termination
as herein provided, said abatement to be computed on the basis of the relation
which the square foot area of the space rendered untenantable bears to the
aggregate square footage of area of the premises.  Landlord shall take
reasonable steps to


<PAGE>


promptly repair all damage.  Tenant may elect to terminate this Lease if repairs
are not completed within 90 days after the casualty event

                                   ARTICLE 12
                                 TRADE FIXTURES

     All trade fixtures owned by Tenant and installed in the Premises shall
remain the property of Tenant and shall be removable from time to time and also
at the expiration of the Term, provided Tenant shall not, at such time, be in
default under any covenant or agreement contained herein; and provided further
that the Tenant repair any damage to the Premises caused by the removal of said
fixtures.

                                   ARTICLE 13
                                      LIENS

     Tenant agrees to promptly pay for any work done or material furnished in or
about the premises and will not permit or suffer any lien to be attached to the
premises and shall promptly cause any such lien or any claim therefor to be
released; provided however, that in the event Tenant contests any such claim,
Tenant agrees to indemnify and secure Landlord to Landlord's satisfaction.
Tenant shall have no authority or power, express or implied, to create or cause
any lien, charge or encumbrance of any kind against the Premises.

                                   ARTICLE 14
                      LAWS, ORDINANCES 7 GENERAL CONDITIONS

     Tenant agrees to promptly comply with all laws, ordinances, orders and
regulations affecting its business and the premises and the cleanliness, safety,
operation and use thereof.  Tenant also agrees to comply with the
recommendations of any insurance comply, inspection bureau or similar agency
with respect to the premises.

     Tenant agrees not to: (a) permit any unlawful or immoral practice to be
carried on or committed on the premises; (b) make any use or allow the premises
to be used in any manner or for any purpose that might invalidate or increase
the rate of insurance thereof; (c) keep or use or permit to be kept or used on
said demised premises any inflammable fluids or explosive without the written
permission of the Landlord first obtained; (d) use the premises for any purpose
whatsoever which might create a nuisance or injure the reputation of the leased
premises or of the premises; (e) deface or injure the building premises; (f)
overload the floors; or (g) commit or suffer any waste.  Tenant agrees to pay as
additional rent any increase in cost of insurance on the building or premises to
Landlord or the owner of same as a result of any unauthorized use of the
premises by Tenant, but such payment shall not constitute in any manner a waiver
by Landlord of its right to enforce all of the covenants and provisions of this
Lease.

     Tenant agrees not to install any electrical equipment that overloads lines
in the premises.  In connection with the installation or use of the electrical
equipment Tenant shall at Tenant's own expense make from time to time whatever
changes are necessary to comply with the requirements of the insurance
underwriters, governmental authorities, or of insurance inspectors


<PAGE>


designated by Landlord.  Tenant agrees not to use any electrical equipment that
contains a heating element unless same is connected and operated in compliance
with the underwriters' specifications.

     Landlord reserves the right at any time to change the name of the building
in which the leased premises are located and to change the address or
designation of the leased premises provided that Landlord reimburses Tenant for
all Tenant's costs (including overhead) resulting from such changes.

                                   ARTICLE 15
                                    INSURANCE

     (a)  Tenant agrees to carry during the term hereof public liability
insurance for the premises written by a company satisfactory to Landlord
providing coverage in the minimum amount of Two Hundred Thousand Dollars
($200,000.00) against liability for injury to or death of any one person and Two
Hundred Thousand ($200,000.00) Dollars against liability arising out of any one
accident or occurrence, and also Two Hundred Thousand Dollars ($200,000.00)
against liability arising out of any property damage; Tenant shall also provide
property insurance upon the demised premises in an amount not less than Two
Hundred Thousand Dollars ($200,000.00); said insurance shall include Landlord,
its agents, beneficiaries and employees as additional insured parties and shall
provide that Landlord shall be given a minimum often (10) days notice by the
insurance company prior to cancellation, termination or change of such
insurance.  Upon request by Landlord, Tenant shall provide Landlord with copies
of the policies or certificates evidencing that such insurance is in full force
and effect and stating the terms thereof.

                                   ARTICLE 16
                                 INDEMNIFICATION

     Except for matters related to Landlord's negligence or defects in the
building, Tenant agrees to indemnify, defend and hold harmless Landlord, its
agents, beneficiaries and employees, from and against all claims, liabilities,
losses, damages and expenses for injury to or death of any person or loss of or
damage to property in or upon Premises and including the person and property of
Tenant, its employees, agents, invitees, licenses or others, it being understood
and agreed that all property kept, stored or maintained in or upon the premises,
shall be at the risk of Tenant.

     If any damages to the Premises or other property of Landlord results from
any act or neglect of Tenant, its agents or employees, Landlord may at its
option repair such damages, and Tenant shall promptly on demand reimburse
Landlord for the cost thereof to the extent costs are not covered by insurance.

     The provisions of this Article shall not be deemed to exempt Landlord from
liability for negligence of Landlord, its agents, servants or employees.


<PAGE>


                                   ARTICLE 17
                                  CONDEMNATION

     If the premises or any substantial part thereof shall be taken under
eminent domain proceedings, either party may at its option terminate this Lease
as of the date when possession is taken.  All damages awarded for such taking
shall belong to and be the property of Landlord.  The Tenant shall have no claim
against the Landlord by reason of such taking or termination but Tenant may
pursue an award for its own loss from the taking authority.

                                   ARTICLE 18
                            ASSIGNMENT AND SUBLETTING

     Tenant shall not sublet the premises in whole or in part and shall not
sell, assign, mortgage, pledge or in any manner transfer this Lease or any
interest therein without in each case the consent in writing of Landlord first
had and obtained which shall not be unreasonably withheld.

                                   ARTICLE 19
                               ACCESS TO PREMISES

     Tenant agrees that Landlord, its agents, employees or servants or any
person authorized by Landlord may enter the premises at any reasonable time
during business hours for the purpose of inspecting the condition of the same
and to make such repairs, additions, improvements, changes or alterations to the
premises or the building of which they are a part as Landlord may elect to make,
and exhibit the same to prospective purchasers of the building in which the
premises are contained so long as Tenant is given reasonable advance notice of
such entry, Tenant's quiet enjoyment of the premises and normal conduct of its
business are not interrupted and confidentiality and security of Tenant's
business are protected.

                                   ARTICLE 20
                         COST, EXPENSES, ATTORNEY'S FEES

     In case Landlord shall, without fault on its part, be made a party to any
litigation commenced by or against Tenant, the Tenant shall pay all costs,
expenses and reasonable attorneys' fees incurred or paid by Landlord in
connection with such litigation; Tenant shall also pay all costs, expenses and
reasonable attorneys' fees that may be incurred or paid by Landlord in enforcing
the covenants and agreements of this Lease.

                                   ARTICLE 21
                               DEFAULT OF TENANTS

     It is agreed that (i) if Tenant vacates or abandons the premises or permits
the same to remain vacant or unoccupied for a period of ten (10) days, or (ii)
if the rent, additional rent, or any part thereof shall be unpaid for five (5)
days alter written notice thereof to Tenant, or (iii) if default shall be made
in the prompt and full performance of any covenant, condition or agreement of
this Lease to be kept more than a reasonable time (in no event to exceed thirty
(30)


<PAGE>


days) alter written notice to Tenant, specifying such default or breach of
performance, or (iv) if any proceedings shall be commenced to declare Tenant
bankrupt or insolvent or to obtain relief under any chapter or provision of any
bankruptcy or debtor relief law or act to reduce or modify Tenant's debts or
obligations or to delay or to extend the payment thereof, or if any assignment
of Tenant's property be made for benefit of creditors, or if a receiver for
trustee be appointed for Tenant or Tenant's property or business, then Landlord
may treat the occurrence of any one or more of the foregoing events as a breach
of this Lease and thereupon at its option without further notice or demand of
any kind to Tenant or any other person, may have, in addition to all other legal
or equitable remedies, the following described remedies: (a) Landlord may elect
to terminate this Lease and the term created hereby in which event Landlord
forthwith may repossess the premises and Tenant shall pay at once to Landlord as
liquidated damages a sum of money equal to the rental provided in this Lease to
be paid by Tenant to Landlord for the balance of the stated term of this Lease;
less rental payments received, if any, upon reletting of the Premises for the
balance of the Lease term.  (b) Landlord may elect to terminate Tenant's right
of possession without termination of this Lease in which event Tenant agrees to
surrender possession and vacate the Premises immediately and deliver possession
thereof to Landlord and Tenant hereby grants to Landlord full and free license
to enter into and upon the Premises, in whole or in part, with or without
process of law and to repossess the Premises or any part thereof and to expel or
remove Tenant and any other person, firm or corporation who may be occupying the
Premises or any part thereof and remove any and all property therefrom, using
such reasonable force as may be necessary; without terminating the Lease or
releasing Tenant in whole or in part from Tenant's obligation to pay rent and
perform any of the covenants, conditions and agreements to be performed by
Tenant as provided in this Lease; without being deemed in any manner guilty of
trespass, eviction or forcible entry or detainer; and without relinquishing
Landlord's right to rental or any other notice of any election made by Landlord
under this Article, demand for payment of rent or for possession, including any
and every form of demand and notice prescribed by any statute or other law.
Upon and after entry into possession without terminating the Lease, Landlord
may, but shall not be obligated to relet all or any part of the premises for
such rent and upon such terms and to such persons, firm or corporation and for
such period or periods as Landlord in Landlord's sole discretion shall determine
and Landlord shall not be required to accept any tenant offered by Tenant, or
observe any instruction given by Tenant about such reletting or to do any act or
exercise any care or diligence with respect to such reletting or to the
mitigation of damages of Tenant.  If the consideration collected by Landlord
upon any such reletting for Tenant's account is not sufficient to pay the rental
reserved in this Lease, Tenant agrees to pay to Landlord the deficiency upon
demand.

                                   ARTICLE 22
                              SURRENDER OF PREMISES

     Tenant, upon expiration or termination of this Lease, either by lapse of
time or otherwise, agrees peaceably to surrender to Landlord the premises,
including the alterations, additions, improvements, changes and fixtures other
than Tenant's movable trade fixtures, in broom-clean condition and in good
repair, except for acts of God and ordinary use and wear and damage by fire;
provided, however, that Tenant's alterations, additions and improvements to the
Premises shall be removed at Tenant's expense upon written request by Landlord.


<PAGE>


                                   ARTICLE 23
                         UNPERFORMED COVENANTS OF TENANT

     In the event Tenant shall fail to comply with and perform any of the
covenants, conditions or agreements herein contained on the Tenant's part to be
performed after notice and the opportunity to cure as provided in this Lease,
the Landlord shall have the right (but not be obligated) to perform any such
covenants, conditions or agreements, and the Tenant agrees to pay to the
Landlord on demand, as additional rent hereunder, a sum equal to the amount
reasonably expended by the landlord in the performance of such covenants,
conditions or agreements.

                                   ARTICLE 24
                                  MISCELLANEOUS

     A.   Notices. Notices and demands required or permitted to be given
hereunder may be given by personal delivery to either party or any officer or
other representative of the party to be notified, or may be sent by certified
mail addressed, postage prepaid, if to Landlord, to it at the address at which
the last rental payment was made or required to be made, and if to Tenant,
addressed to Tenant at the premises, or such other address as was last specified
respectively in writing by one party to the other.  Notices and demands shall be
deemed to have been given when mailed or if made by personal delivery, then upon
such delivery.

     B.   Remedies. All rights and remedies of Landlord and Tenant herein
created or otherwise existing at law are cumulative and the exercise of one or
more rights or remedies shall not be taken to exclude or waive the right to the
exercise of any other.  All such rights and remedies may be exercised and
enforced concurrently and whenever and as often as Landlord and Tenant,
respectively, deem desirable.

     C.   Successors and Assigns.  All covenants, promises, conditions,
representations and agreements herein contained shall be binding upon, apply and
inure to the parties hereto and their respective heirs, executors,
administrators, successors and permitted assigns.

     D.   Liability.  If two or more individuals, corporations, partnerships, or
other business associations (or any combination of two or more thereof) shall
sign this Lease as Tenant, the liability of each such individual, corporation,
partnership, or other business association to pay Rent and perform all other
obligations hereunder shall be deemed to be join and several.  In like manner,
if the Tenant named in this Lease shall be a partnership or other business
association, the members of which are by virtue of statute or general law,
subject to personal liability, the liability of each such member shall be deemed
to be joint and several.  Only Tenant's corporate signature shall be required on
this Lease.

     E.   Representations.  It is understood and agreed by Tenant that Landlord
and Landlord's agents have made no representations or promises with respect to
the premises or the making or entry into this Lease except as in this Lease
expressly set forth and that no claim or liability, or cause for termination
shall be asserted by Tenant against Landlord for, and landlord


<PAGE>


shall not be liable by reason of breach of any representations or promises not
expressly stated in this Lease.

     F.   Waiver.  The failure of Landlord to insist upon strict performance by
Tenant of any of the covenants, conditions and Agreements of this Lease shall
not be deemed a waiver of any of Landlord's rights or remedies and shall not be
deemed a waiver of any subsequent breach or default by Tenant in any of the
covenants, conditions and agreements of this Lease.

     G.   Hold Over.  Tenant shall pay to Landlord, as liquidated damages, the
same amount of rent specified in the Data Sheet, as a month-to-month Tenant for
the time Tenant retains possession of the premises or any part thereof after
termination of the Lease by lapse of time or otherwise; or, if and only if
Landlord serves written notice upon Tenant of Landlord's election thereof, such
holding over shall constitute renewal of this Lease for one (1) year.
Landlord's acceptance of any rent after holding over begins does not renew this
Lease.  This provision does not waive Landlord's rights to re-entry or any other
right hereunder.

     H.   Interpretation.  The time of the performance of all the covenants,
conditions and agreements of this Lease is of the essence of this agreement.
Nothing herein shall be construed so as to constitute a joint venture or
partnership between Landlord and Tenant.  The captions of the several articles,
contained herein are for convenience only and do not define, limit, describe or
construe the contents of such articles.  No amendments or modifications of or
supplements to this Lease, shall be effective unless in writing and executed by
Landlord and Tenant.  If any provision of this Lease is held to be invalid, such
invalid provision shall be deemed to be severable from and shall not effect the
validity of the remainder of this Lease.

     I.   Bankruptcy.  The bankruptcy of Landlord (whether voluntary or
involuntary) shall not affect the rights of Tenant in and to the Premises
pursuant to this Lease.

     IN WITNESS WHEREOF, Landlord and Tenant have signed and sealed this Lease
as of the day and year above written.


LANDLORD:

LAWIN ENTERPRISES, INC.


By /s/ Timothy P. Lawin
  ----------------------------


TENANT

ADVANCED UROSCIENCE, INC.


By /s/ Dean Klein
- ------------------------------

<PAGE>
                                                                      EXHIBIT 11


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



<TABLE>
<CAPTION>

                                                    Period from                                                       Period from
                                                     August 1,                                                         August 1,
                                                   1994 (Date of                         Five Months Ended May 31,   1994 (Date of
                                                   Inception), to      Year Ended      ---------------------------   Inception), to
                                                    December 31,        December 31,       1995            1996       May 31, 1996
                                                       1994               1995         (Unaudited)     (Unaudited)    (Unaudited)
                                                   --------------------------------------------------------------------------------
<S>                                                <C>                  <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              --         2,706,919

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

Common stock issued (C)                                 877,620          877,620         877,620         543,000           877,620
                                                    -----------       ----------     -----------      ----------       -----------
Weighted average number of
  common and common
  equivalent shares                                   3,840,887        4,393,483       4,387,883       4,397,483         4,268,802
                                                    -----------       ----------     -----------      ----------       -----------
                                                    -----------       ----------     -----------      ----------       -----------
Net loss                                              ($108,910)       ($524,444)      ($159,242)      ($514,651)      ($1,148,005)
                                                    -----------       ----------     -----------      ----------       -----------
                                                    -----------       ----------     -----------      ----------       -----------
Loss per common and common 
  equivalent shares                                      ($0.03)          ($0.12)         ($0.04)         ($0.12)           ($0.27)
                                                    -----------       ----------     -----------      ----------       -----------
                                                    -----------       ----------     -----------      ----------       -----------


</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
June 28, 1996

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
     AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1
       
<S>                             <C>                     <C>
<PERIOD-TYPE>                   YEAR                   OTHER
<FISCAL-YEAR-END>                          DEC-31-1995             DEC-31-1996
<PERIOD-START>                             JAN-01-1995             JAN-01-1996
<PERIOD-END>                               DEC-31-1995             MAY-31-1996
<CASH>                                         474,700               1,349,900
<SECURITIES>                                         0                       0
<RECEIVABLES>                                        0                       0
<ALLOWANCES>                                         0                       0
<INVENTORY>                                          0                       0
<CURRENT-ASSETS>                               492,600               1,430,900
<PP&E>                                          25,200                  57,000
<DEPRECIATION>                                   6,800                  10,800
<TOTAL-ASSETS>                                 534,400               1,506,200
<CURRENT-LIABILITIES>                           77,400                 186,300
<BONDS>                                              0                       0
                                0                       0
                                          0                       0
<COMMON>                                     1,109,800               2,527,300
<OTHER-SE>                                   (852,700)             (1,207,400)
<TOTAL-LIABILITY-AND-EQUITY>                   534,400               1,506,200
<SALES>                                              0                       0
<TOTAL-REVENUES>                                     0                       0
<CGS>                                                0                       0
<TOTAL-COSTS>                                        0                       0
<OTHER-EXPENSES>                               518,100                 524,800
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                              16,000                   4,700
<INCOME-PRETAX>                              (524,400)               (514,700)
<INCOME-TAX>                                         0                       0
<INCOME-CONTINUING>                          (524,400)               (514,700)
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                 (524,400)               (514,700)
<EPS-PRIMARY>                                    (.12)                   (.12)
<EPS-DILUTED>                                        0                       0
        

</TABLE>


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