VIDAMED INC
S-3, 1997-09-24
SURGICAL & MEDICAL INSTRUMENTS & APPARATUS
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      As filed with the Securities and Exchange Commission on September 24, 1997
                                                   Registration No. 333-
- --------------------------------------------------------------------------------


                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

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

                                    FORM S-3
                             REGISTRATION STATEMENT
                                      Under
                           The Securities Act of 1933

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

                                  VIDAMED, INC.
             (Exact name of Registrant as specified in its charter)
                           ---------------------------

            Delaware                                    77-0314454
(State or other jurisdiction of                      (I.R.S. Employer
 incorporation or organization)                   Identification Number)

                              46107 Landing Parkway
                            Fremont, California 94538
                                 (510) 492-4900
       (Address,  including zip code, and telephone number, including area code,
                  of Registrant's principal executive offices)

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

                                 JAMES A. HEISCH
                      President and Chief Executive Officer
                                  VidaMed, Inc.
                              46107 Landing Parkway
                            Fremont, California 94538
                                 (510) 492-4900
 (Name, address, including zip code, and telephone number, including area code,
                              of agent for service)

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

                                   Copies to:

                          Christopher D. Mitchell, Esq.
                        Wilson Sonsini Goodrich & Rosati
                            Professional Corporation
                               650 Page Mill Road
                            Palo Alto, CA 94304-1050
                                 (650) 493-9300

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

     Approximate date of commencement of proposed sale to the public: As soon as
practicable after the effective date of this Registration Statement.

     If the only  securities  being  registered  on this Form are being  offered
pursuant to dividend or interest reinvestment plans, check the following box.[ ]

     If any of the securities being registered on this Form are to be offered on
a delayed or continuous  basis  pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box. [x]

     If this Form is filed to  register  additional  securities  for 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,  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. [ ]

                           ---------------------------
<PAGE>

<TABLE>

                                                   CALCULATION OF REGISTRATION FEE
====================================================================================================================================
<CAPTION>

                                                                                                    Proposed
                                                                            Proposed                Maximum
          Title of Each Class                      Amount                   Maximum                Aggregate              Amount of
            of Securities to                        to be                Offering Price             Offering            Registration
             be Registered                       Registered               Per Share(1)               Price                   Fee
                                         --------------------------  ---------------------  ----------------------- ----------------
<S>                                            <C>                         <C>                     <C>                      <C>  
Common Stock                                   
 $0.001 par value......................        2,517,652 shares            $  5.25                 $13,217,673              4,362
- --------------------------------------- =========================== ====================== ======================== ===============
Common Stock                              
 $0.001 par value issuable
  upon exercise of warrants............. 629,413 shares $ 6.33 $3,984,185 1,20907
======================================== =========================== ====================== ======================== ===============
<FN>

(1)   Estimated   solely  for  the  purpose  of  computing  the  amount  of  the
      registration fee pursuant to Rule 457(c)  promulgated under the Securities
      Act of 1933.
(2)   Estimated   solely  for  the  purpose  of  computing  the  amount  of  the
      registration  fee  pursuant  to  Rule  457(g)(1)   promulgated  under  the
      Securities Act of 1933.
</FN>
</TABLE>

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

     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.

                 SUBJECT TO COMPLETION, DATED SEPTEMBER 24, 1997


PROSPECTUS
                                  VIDAMED, INC.

                        3,147,065 Shares of Common Stock

         This  Prospectus  relates to (i)  2,517,652  shares (the  "Shares")  of
common stock,  $.001 par value per share (the "Common Stock") and (ii) a maximum
of 629,413  additional  shares of Common Stock (the "Warrant  Shares")  issuable
upon exercise of certain  warrants (the  "Warrants") to purchase Common Stock of
VidaMed,  Inc. (the "Company" or  "VidaMed").  The Shares and the Warrant Shares
collectively are referred to herein as the  "Securities."  The Securities may be
offered by certain  stockholders of the Company (the "Selling Security Holders")
from time to time in transactions in the over-the-counter market through Nasdaq,
in  privately  negoti ated  transactions,  through the writing of options on the
Securities,  or through a  combination  of such methods of sale, at fixed prices
that may be changed,  at market prices prevailing at the time of sale, at prices
relating to such prevailing market prices or at negotiated  prices.  The Selling
Security  Holders may effect such  transactions  by selling the Securities to or
through broker-dealers,  and such broker-dealers may receive compensation in the
form of discounts,  concessions or commissions from the Selling Security Holders
and/or the purchasers of the Securities for whom such  broker-dealers may act as
agents or to whom they may sell as principals, or both (which compensation as to
a particular  broker-dealer  might be in excess of customary  commissions).  See
"Selling Security Holders" and "Plan of Distribution."

         None of the  proceeds  from the sale of the  Securities  by the Selling
Security Holders will be received by the Company. The Company has agreed to bear
all expenses  (other than selling  commissions and fees and ex penses of counsel
and other  advisers to the Selling  Security  Holders)  in  connection  with the
registration  and sale of the Securities  being offered by the Selling  Security
Holders.  The  Company has agreed to  indemnify  the  Selling  Security  Holders
against certain liabilities,  including  liabilities under the Securities Act of
1933, as amended (the "Securities Act").

         All the Securities were  "restricted  securities"  under the Securities
Act prior to their registration here under. The Company sold 2,517,652 shares of
Common  Stock and 629,413  Warrants to the Selling  Security  Holders in private
transactions  in  September  1997.  Such shares of Common  Stock and the 629,413
Warrant  Shares which may be issuable upon exercise of the Warrants (such shares
together the  "Securities") are registered  hereunder.  This Prospectus has been
prepared so that future  sales of Common Stock by the Selling  Security  Holders
will not be restricted  under the Securities  Act. In connection with any sales,
the Selling Security Holders and any brokers  participating in such sales may be
deemed to be "underwriters" within the meaning of the Securities Act.
See "Selling Security Holders."

         The Company's  Common Shares are traded on the Nasdaq  National  Market
System under the symbol "VIDA."

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

      THESE SECURITIES INVOLVE A HIGH DEGREE OF RISK. SEE "RISK FACTORS."'

    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.


                   The date of this Prospectus is [ ] __, 1997



<PAGE>



                              AVAILABLE INFORMATION

         As used in this Prospectus,  unless the context otherwise requires, the
terms "VidaMed" and the "Company" mean VidaMed,  Inc. and its subsidiaries.  The
Company is subject to the informational  requirements of the Securities Exchange
Act of 1934, as amended (the  "Exchange  Act"),  and, in  accordance  therewith,
files reports,  proxy  statements and other  information with the Securities and
Exchange  Commission (the  "Commission").  Reports,  proxy  statements and other
information filed with the Commission pursuant to the informational requirements
of the  Exchange  Act  may be  inspected  and  copied  at the  public  reference
facilities  maintained by the Commission at Room 1024,  450 Fifth Street,  N.W.,
Washington, D.C. 20549, and at the following regional offices of the Commission:
New York Regional Office,  7 World Trade Center,  Suite 1300, New York, New York
10048; and Chicago Regional  Office,  Citicorp Center,  500 West Madison Street,
Suite 1400,  Chicago,  Illinois 60661.  Copies of such materials may be obtained
from the Public Reference  Section of the Commission at 450 Fifth Street,  N.W.,
Washington,  D.C. 20549, at prescribed  rates. The Commission  maintains a World
Wide Web site that contains reports,  proxy and information statements and other
information  regarding registrants that file electronically with the Commission.
The address of the site is http://www.sec.gov.

         The  Company's  Common Stock is traded on the Nasdaq  National  Market.
Reports and other  information  concerning  the Company may be  inspected at the
National  Association  of  Securities  Dealers,   Inc.,  1735  K  Street,  N.W.,
Washington, D.C. 20006.

         This Prospectus  constitutes  part of a Registration  Statement on Form
S-3 (herein,  together with all amendments and exhibits thereto,  referred to as
the "Registration Statement") filed by the Company with the Commission under the
Securities Act of 1933, as amended (the "Securities  Act"),  with respect to the
securities  offered  hereby.  This  Prospectus  does  not  contain  all  of  the
information set forth in the Registration Statement,  certain parts of which are
omitted in accordance  with the rules and  regulations  of the  Commission.  For
further  information,  reference is hereby made to the  Registration  Statement,
copies  of which  may be  obtained  from the  Public  Reference  Section  of the
Commission, 450 Fifth Street, N.W., Washington,  D.C. 20549, upon payment of the
fees prescribed by the Commission. Statements contained in this Prospectus as to
the contents of any contract or any other document  filed,  or  incorporated  by
reference,  as an exhibit to the  Registration  Statement,  are qualified in all
respects by such reference.

                      INFORMATION INCORPORATED BY REFERENCE

         The Company's  Form 8-A filed with the  Commission on January 31, 1997,
the Company's  Annual Report on Form 10-K for the fiscal year ended December 31,
1996, the Company's  Quarterly Reports on Form 10-Q for the quarters ended March
31, 1997 and June 30, 1997 and the Company's Current Report on Form 8-K filed on
September 24, 1997 heretofore filed by the Company with the Commission  pursuant
to the Exchange Act, are hereby incorporated by reference,  except as superseded
or modified herein.

         Each document filed subsequent to the date of this Prospectus  pursuant
to  Section  13(a),  13(c),  14 or 15(d) of the  Exchange  Act and  prior to the
termination  of this offering  shall be deemed to be  incorporated  by reference
into this  Prospectus  and shall be part  hereof from the date of filing of such
document.

         The Company will provide  without  charge to each person to whom a copy
of this  Prospectus is  delivered,  upon the written or oral request of any such
person, a copy of any document  described above (other than exhibits).  Requests
for such copies  should be directed to VidaMed,  Inc. at its  principal  offices
located at 46107 Landing Parkway,  Fremont,  California  94538,  telephone (510)
492-4902, attention Investor Relations.



<PAGE>



         Any  statement  contained  in a  document  all or a portion of which is
incorporated or deemed to be incorporated by reference herein shall be deemed to
be modified or superseded  for purposes of this  Prospectus to the extent that a
statement  contained  herein or in any other  subsequently  filed document which
also  is or is  deemed  to be  incorporated  by  reference  herein  modifies  or
supersedes such statement.  Any statement so modified or superseded shall not be
deemed to constitute a part of this  Prospectus  except as so modified,  and any
statement  so  superseded  shall  not be  deemed  to  constitute  part  of  this
Prospectus.

         VidaMed(R),  the VidaMed logo and TUNA(TM) are  trademarks  of VidaMed,
Inc.




<PAGE>



                                   THE COMPANY

         VidaMed, Inc. (the "Company" or "VidaMed") was founded in July 1992 and
reincorporated in the State of Delaware in June 1995. VidaMed designs, develops,
manufactures and markets technologically and clinically advanced, cost effective
systems for  urological  applications.  The Company's  initial focus is upon the
treatment of benign prostatic  hyperplasia ("BPH"). The Company's first product,
the  patented  TUNA  System,  is designed to offer a cost  effective,  minimally
invasive  alternative  therapy  with  compelling  clinical  advantages  for  BPH
treatment.  The Company commenced manufacturing  production and product sales in
1993. On October 8, 1996, the Company  received 510(k) clearance from the United
States  Food  and  Drug  Administration   ("FDA")  to  market  the  TUNA  System
commercially  in the  United  States  for the  treatment  of BPH.  In the United
States,  the Company sells its products primarily through direct sales personnel
and a network of specialty  urology  product  dealers.  International  sales are
primarily to distributors who resell to physicians and hospitals.

         VidaMed has designed and developed the TUNA System to be the therapy of
choice  for BPH  over  watchful  waiting,  drug  therapy  and  current  surgical
therapies. The TUNA System is designed to restore and improve urinary flow while
resulting in fewer complications and adverse effects,  shorter recovery time and
greater cost  effectiveness  than other  therapies for treating BPH. The Company
believes that the cost of treatment with TUNA will be less than the cost of many
other  interventional  BPH  therapies  because the  procedure  is designed to be
performed on an outpatient basis and to result in fewer complications.

         The principal components of the TUNA system are (i) a single-use needle
ablation handpiece that delivers RF energy to the prostate,  (ii) a low power RF
energy  generator and (iii) an optical  device that allows direct viewing during
the procedure.

         TUNA  Handpiece.  The  single-use  TUNA  handpiece  measures  22 French
(approximately  seven  millimeters) in diameter and contains  laterally deployed
needles that extend at an approximately 90 degree angle.  Each needle is encased
by a  retractable  shield  which  protects  the  urethra  and is adjusted by the
urologist to selectively  control the area of prostate tissue ablated during the
procedure.  Controls on the handpiece  handle allow for independent  advancement
and  retraction of the needle and shields.  Thermocouples  located at the shield
tip and at the handpiece tip record  temperatures  at the lesion site and in the
prostatic  urethra.  The handpiece  includes  capabilities  for  irrigation  and
aspiration,  enhancing  visualization for the physician and enabling drainage of
the bladder without removing and reinserting the handpiece.  In addition,  these
capabilities  allow  the  physician  to more  closely  control  urethral  tissue
temperature during the procedure.

         TUNA  RF   Generator.   The  TUNA  RF  energy   generator  is  designed
specifically  for use with the TUNA  handpiece.  The RF  generator  has  digital
displays  indicating the  temperature at each  thermocouple,  the RF power being
delivered  to  each  needle,  ablation  time  and  electrical  impedance.  These
measurements are used by the physician to control tissue ablation. The generator
incorporates  both  automated  and manual  control  modes.  The generator has an
automatic shut-off  activated by both temperature and impedance  measurements to
ensure controlled tissue ablation.

         TUNA Optics. The TUNA optical device allows precise  positioning of the
handpiece  between the  verumontanum  and the bladder neck during the  procedure
using direct vision control.  The optical device is reusable after sterilization
and is equipped with a three-way  exchange adapter,  which allows the unit to be
used with endoscopic light sources manufactured by other companies.

         The TUNA procedure  desiccates  prostatic  tissue,  leading to improved
urinary flow, and can be performed in  approximately 30 to 45 minutes with local
anesthesia,  which  may  be  supplemented  by  intravenous  sedation.  The  TUNA
handpiece is inserted into the patient's  urethra,  and the two shielded  needle
electrodes are then


<PAGE>



advanced into one of the two lateral lobes of the prostate. Controlled RF energy
delivered by the needle  electrodes heats targeted portions of the prostate lobe
to  temperatures of 90 to 100 degrees  centigrade,  creating a localized area of
desiccated  tissue measuring  approximately  one to two centimeters in diameter,
while the shields  protect the urethra  from  thermal  damage.  Once a lesion of
sufficient size has been created,  the urologist retracts the needles and places
the handpiece at the next site to be ablated and repeats the process. Typically,
two  treatments in each lateral  prostate lobe are performed  depending upon the
size of the  prostate.  If the  patient  is unable to urinate  due to  temporary
swelling or  irritation  of the urethra,  a catheter  will be inserted  into the
patient's urethra.  This catheter,  if inserted,  is typically left in place for
one to two days.

         The  Company  believes  that  the  design  of the  TUNA  system  offers
significant advantages over other BPH therapies. Because the TUNA system shields
the urethra and delivers  controlled RF energy directly into the interior of the
prostate,  the procedure  protects the prostatic urethra and reduces the risk of
unintended thermal damage to surrounding  structures.  In other procedures where
this control does not exist,  the prostatic  urethra and other structures can be
damaged or destroyed,  causing significant patient discomfort and complications.
Clinical  trials of the TUNA system  indicate  that TUNA results in fewer of the
complications  associated  with  transurethral  resection  of prostate  ("TURP")
surgery,  including  impotence,  retrograde  ejaculation and  incontinence.  The
Company  believes  that the cost of the TUNA  procedure  in the  United  States,
including  physician charges,  will be significantly less than the cost of TURP.
The TUNA RF generator is typically  currently sold at  approximately  $35,000 in
the United States,  which is less than the general  surgical  lasers required to
perform laser  procedures and the ultrasound and microwave  devices required for
other surgical procedures.

         The Company  believes TUNA will also provide  patients,  physicians and
health care payors with a clinically and  economically  superior  alternative to
ongoing drug therapy,  other minimally  invasive surgeries and watchful waiting.
To date,  the  symptomatic  relief  experienced  by  patients  in the  Company's
clinical trials suggests that TUNA provides  greater relief than drug therapy or
watchful  waiting.  The  Company  believes  that if the relief  provided by TUNA
proves  to be  sufficiently  long  lasting,  TUNA may  prove to be  economically
superior to the noninvasive approaches.  To date, the Company's available two to
three-year clinical follow-up data for TUNA patients do not suggest the need for
retreatment  within this time frame.  However,  there can be no  assurance as to
whether and how frequently TUNA patients will require retreatment.

         The  Company  has  recently  relocated  to a new  facility  in Fremont,
California.  This facility has the capacity and resources for  manufacturing the
headpiece  component of the TUNA system.  Accordingly,  the Company is currently
exploring various alternatives for consolidation of TUNA system manufacturing at
this facility.

                                       -2-

<PAGE>



                                  RISK FACTORS

         An  investment  in the  Securities  being  offered  by this  Prospectus
involves a high  degree of risk.  The  following  factors,  in addition to those
discussed  elsewhere  in this  Prospectus,  should be  carefully  considered  in
evaluating the Company and its business  prospects before purchasing  Securities
offered by this Prospectus.

         Limited Operating History;  History of Losses and Expectation of Future
Losses;  Fluctuations in Operating Results. The Company has a limited history of
operations.  Since its  inception in July 1992,  the Company has been  primarily
engaged  in  research  and  development  of the TUNA  system.  The  Company  has
experienced  significant  operating  losses since  inception and, as of June 30,
1997, had an accumulated deficit of $60.2 million.

         The development and commercialization by the Company of the TUNA system
and other new products,  if any, will require substantial  product  development,
clinical, regulatory,  marketing and other expenditures. The Company expects its
operating  losses  to  continue  for at  least  the next 12 to 18  months  as it
continues  to expend  substantial  resources in  expanding  marketing  and sales
activities,  funding clinical trials in support of regulatory and  reimbursement
approvals and research and development.  There can be no assurance that the TUNA
system will be  successfully  commercialized  or that the Company  will  achieve
significant  revenues from either  international or domestic sales. In addition,
there can be no assurance that the Company will achieve or sustain profitability
in the future. Results of operations may fluctuate significantly from quarter to
quarter and will depend upon numerous  factors,  including  actions  relating to
regulatory and reimbursement matters, progress of clinical trials, the extent to
which the TUNA system gains market  acceptance,  varying pricing  promotions and
volume discounts to distributors,  introduction of alternative therapies for BPH
and competition.

         Uncertainty  of Market  Acceptance.  TUNA  represents a new therapy for
BPH,  and  there  can be no  assurance  that  the  TUNA  system  will  gain  any
significant  degree of market acceptance among  physicians,  patients and health
care payors,  even if necessary  international  and United States  reimbursement
approvals are obtained.  Physicians will not recommend the TUNA procedure unless
they  conclude,  based  on  clinical  data  and  other  factors,  that  it is an
attractive  alternative  to  other  methods  of BPH  treatment,  including  more
established methods such as TURP and drug therapy. In particular, physicians may
elect not to  recommend  the TUNA  procedure  until  such time,  if any,  as the
duration of the relief provided by the procedure has been established. Broad use
of the TUNA system will  require the  training of numerous  physicians,  and the
time required to complete such training  could result in a delay or dampening of
market  acceptance.  Even if the  clinical  efficacy  of the TUNA  procedure  is
established,  physicians  may  elect  not  to  recommend  the  procedure  unless
acceptable reimbursement from health care payors is available. Health care payor
acceptance of the TUNA procedure will require evidence of the cost effectiveness
of TUNA as compared to other BPH  therapies,  which will depend in large part on
the duration of the relief provided by the TUNA procedure.  A thorough  analysis
of multi-year  patient follow-up data will be necessary to assess the durability
of the relief provided by TUNA therapy. Patient acceptance of the procedure will
depend in part on physician recommendations as well as other factors,  including
the degree of  invasiveness  and rate and severity of  complications  associated
with the procedure as compared to other therapies.

         Uncertainty  Relating  to  Third  Party  Reimbursement.  The  Company's
success  will be  dependent  upon,  among  other  things,  its ability to obtain
satisfactory  reimbursement  from health care payors for the TUNA procedure.  In
the United States and in  international  markets,  third party  reimbursement is
generally  available  for existing  therapies  used for treatment of BPH. In the
United  States,  third  party  reimbursement  for  the  TUNA  procedure  will be
dependent upon decisions by the Health Care  Financing  Administration  ("HCFA")
for Medicare, as well as by individual health maintenance organizations, private
insurers and other payors.



                                       -3-

<PAGE>



         Reimbursement  systems in international  markets vary  significantly by
country.  Many  international  markets have  governmentally  managed health care
systems  that  govern  reimbursement  for new devices  and  procedures.  In most
markets,  there are private insurance systems as well as governmentally  managed
systems.

         Regardless of the type of  reimbursement  system,  the Company believes
that  physician  advocacy  of  the  TUNA  system  will  be  required  to  obtain
reimbursement.  Availability  of  reimbursement  will  depend  not  only  on the
clinical  efficacy  and  direct  cost of the  TUNA  procedure,  but  also on the
duration of the relief  provided by the procedure.  In the United  States,  TUNA
procedures are currently being  reimbursed by certain  private payors.  However,
due  to  the  age  of  the  typical  BPH  patient,   Medicare  reimbursement  is
particularly  critical for widespread market acceptance of the TUNA procedure in
the United  States.  Although  certain state  Mediczre  directors have permitted
reimbursement  for  TUNA  procedures  on  an ad  hoc  basis,  national  Medicare
reimbursement  will require,  at a minimum,  publication  by HCFA of an American
Medical Association ("AMA") current procedure  terminology ("CPT") code covering
the TUNA  procedure.  The  Company  has been  advised by the AMA that a CPT code
covering the physician fee component of the TUNA  procedure  will be included in
the 1998  edition of CPT codes  which  will  become  effective  January 1, 1998.
However,  national  Medicare  reimbursement of TUNA procedure costs in an office
setting at an adequate  level will in  addition  require,  among  other  things,
completion  by HCFA of a review of the cost and efficacy of the TUNA  procedure.
Such cost and efficacy review may involve an assessment of clinical data with up
to five-year  patient  follow-up.  Accordingly,  there can be no assurance  that
reimbursement for the Company's  products will be available in the United States
or in international  markets under either governmental or private  reimbursement
systems at adequate levels,  or that physicians will support  reimbursement  for
TUNA procedures. Furthermore, the Company could be adversely affected by changes
in reimbursement policies of governmental or private health care payors. Failure
by  physicians,  hospitals and other users of the  Company's  products to obtain
sufficient  reimbursement  from  health care  payors,  including  in  particular
Medicare  reimbursement in the United States, or adverse changes in governmental
and private third party payors'  policies  toward  reimbursement  for procedures
employing the Company's  products  would have a material  adverse  effect on the
Company's business, financial condition and results of operations.

         Risk of  Inadequate  Funding.  The Company  plans to continue to expend
substantial funds for clinical trials in support of regulatory and reimbursement
approvals, expansion of sales and marketing activities, research and development
and establishment of commercial scale manufacturing capability.  The Company may
be required to expend greater than anticipated funds if unforeseen  difficulties
arise in the course of clinical  trials of the TUNA system,  in connection  with
obtaining necessary  regulatory and reimbursement  approvals or in other aspects
of the Company's business.  Although the Company believes that its existing cash
reserves,  including  the  proceeds  from  the  sale  of  the  securities  being
registered  for resale and cash  generated from the future sale of products will
be sufficient to meet the Company's  operating and capital  requirements  during
the next 12 to 18 months,  there can be no  assurance  that the Company will not
require  additional  financing  within this time  frame.  The  Company's  future
liquidity and capital requirements will depend upon numerous factors,  including
progress of clinical trials,  actions  relating to regulatory and  reimbursement
matters,  and the extent to which the TUNA system gains market  acceptance.  Any
additional financing, if required, may not be available on satisfactory terms or
at all.  Future equity  financings  may result in dilution to the holders of the
Company's Common Stock. Future debt financings may require the Company to pledge
assets and to comply with financial and operational covenants.

         Possible  Volatility of Stock Price.  The stock market has from time to
time experienced significant price and volume fluctuations that are unrelated to
the  operating   performance  of  particular   companies.   These  broad  market
fluctuations  may  adversely  affect the market  price of the  Company's  Common
Stock. In addition,  the market price of the shares of Common Stock is likely to
be highly  volatile.  Factors such as  fluctuations  in the Company's  operating
results,  announcements  of  technological  innovations  or new  products by the
Company or


                                       -4-

<PAGE>



its competitors,  FDA and international regulatory actions, actions with respect
to reimbursement  matters,  developments  with respect to patents or proprietary
rights,  public concern as to the safety of products developed by the Company or
others,  changes in health care policy in the United States and internationally,
changes in stock market  analyst  recommendations  regarding the Company,  other
medical device  companies or the medical device  industry  generally and general
market  conditions  may have a  significant  effect on the  market  price of the
Common Stock.

         Competition and Technological  Advances.  Competition in the market for
treatment  of BPH is intense and is expected to increase.  The Company  believes
its principal  competition will come from invasive therapies,  such as TURP, and
noninvasive  courses of action,  such as drug therapy and watchful waiting.  The
Company may encounter competition from emerging therapies in attracting clinical
investigators  as well  as  prospective  clinical  trial  patients.  Most of the
Company's competitors have significantly greater financial, technical, research,
marketing,  sales,  distribution and other resources than the Company. There can
be no assurance that the Company's competitors will not succeed in developing or
marketing  technologies  and products  that are more  effective or  commercially
attractive than any which are being developed by the Company.  Such developments
could  have a  material  adverse  effect on the  Company's  business,  financial
condition and results of operations.

         Any product  developed  by the Company that gains  regulatory  approval
will have to compete for market acceptance and market share. An important factor
in such  competition  may be the timing of market  introduction  of  competitive
products.  Accordingly,  the  relative  speed with which the Company can develop
products,  complete  clinical testing and regulatory  approval  processes,  gain
reimbursement  acceptance and supply commercial quantities of the product to the
market are expected to be important  competitive  factors.  The Company  expects
that competition in the BPH field will also be based, among other things, on the
ability of the therapy to provide safe,  effective and lasting  treatment,  cost
effectiveness  of  the  therapy,   physician,  health  care  payor  and  patient
acceptance of the procedure,  patent position,  marketing and sales  capability,
and third party reimbursement policies.

         Government  Regulation.  The Company's  TUNA system is regulated in the
United States as a medical  device by the FDA under the Federal Food,  Drug, and
Cosmetic  Act  ("FDC  Act").  Pursuant  to the FDC Act,  the FDA  regulates  the
manufacture,  distribution  and  production  of  medical  devices  in the United
States.   Noncompliance  with  applicable  requirements  can  result  in  fines,
injunctions,  civil penalties,  recall or seizure of products,  total or partial
suspension  of  production,  failure of the  government  to grant  approval  for
devices,  and criminal  prosecution.  Medical devices are classified into one of
three  classes,  class I, II or III, on the basis of the  controls  necessary to
reasonably ensure their safety and  effectiveness.  The safety and effectiveness
can be assured for class I devices  through general  controls  (e.g.,  labeling,
premarket  notification  and adherence to GMPs) and for class II devices through
the  use  of  special   controls  (e.g.,   performance   standards,   postmarket
surveillance,  patient  registries,  and FDA guidelines).  Generally,  class III
devices are those  which must  receive  premarket  approval by the FDA to ensure
their  safety and  effectiveness  (e.g.,  life-sustaining,  life-supporting  and
implantable  devices,  or new  devices  which have not been found  substantially
equivalent to legally marketed devices).

         Before a new device can be introduced into the market, the manufacturer
must generally  obtain FDA clearance  through either a 510(k)  notification or a
premarket  approval ("PMA"). A 510(k) clearance will be granted if the submitted
data  establishes  that the proposed device is  "substantially  equivalent" to a
legally marketed class I or II medical device,  or to a class III medical device
for which the FDA has not called for a PMA. The FDA has recently been  requiring
a more rigorous  demonstration  of substantial  equivalence than in the past. It
generally  takes from three to nine  months from  submission  to obtain a 510(k)
clearance,  but it may take  longer.  The FDA may  determine  that the  proposed
device is not substantially equivalent, or that additional data is needed before
a  substantial  equivalence  determination  can be  made.  A "not  substantially
equivalent"


                                       -5-

<PAGE>



determination,  or a  request  for  additional  data,  could  delay  the  market
introduction  of new  products  that fall into this  category  and could  have a
materially  adverse effect on the Company's  business,  financial  condition and
results of  operations.  There can be no assurance  that the Company will obtain
510(k)  clearance  within the above time  frames,  if at all, for any device for
which  it files a  future  510(k)  notification.  Furthermore,  there  can be no
assurance that the Company will not be required to submit a PMA  application for
any device which it may develop in the future. For any of the Company's products
that are cleared  through  the 510(k)  process,  including  the  Company's  TUNA
System,  modifications or enhancements that could significantly affect safety or
efficacy will require new 510(k) submissions.

         Sales of  medical  devices  outside  the United  States are  subject to
regulatory  requirements  that vary  widely from  country to  country.  The time
required  to  obtain  approval  for sale in a foreign  country  may be longer or
shorter than that required for FDA approval,  and the  requirements  may differ.
VidaMed has received regulatory  approvals where required for commercial sale of
the TUNA system in all major  international  markets.  In May 1994 the Company's
United Kingdom  facility passed  inspection by the United Kingdom  Department of
Health and  received GMP  certification.  In June 1994,  the Company  received a
report of compliance  for the TUNA system from the British  Standards  Institute
("BSI") and in August 1994 the Company received a certificate of compliance with
IEC 601-1 and IEC  601-2  regulations  from TUV  Product  Services.  TUV and BSI
certifications,  which are issued by  organizations  analogous  to  Underwriters
Laboratories in the United States, are focused on device safety and adherence of
the device to published  electronic  or mechanical  specifications.  In February
1995, the Company received ISO 9002 certification for its manufacturing facility
in the  United  Kingdom.  ISO  9002  certification  is  based  on  adherence  to
established  standards  in the  areas of  quality  assurance  and  manufacturing
process control.  These certifications allow the Company to affix the CE mark to
the TUNA system, permitting the Company to commercially market and sell the TUNA
system in all  countries of the  European  Economic  Area.  In order to maintain
these  approvals,  the  Company is subject to periodic  inspections.  Additional
product  approvals  from  foreign  regulatory  authorities  may be required  for
international sale of the Company's general  electrosurgical device for which an
FDA  510(k)  notification  has been  filed.  Failure to comply  with  applicable
regulatory  requirements can result in loss of previously received approvals and
other  sanctions  and could  have a  material  adverse  effect on the  Company's
business, financial condition and results of operations.

         The Company's distributor in Japan, Century Medical, is responsible for
management  of  clinical  trials  and  obtaining  regulatory  and  reimbursement
approval for the TUNA system.  Such  regulatory  approval was received  from the
Japanese Ministry of Health and Welfare in July 1997. However, market acceptance
in Japan will be dependent in large part upon receipt of reimbursement approvals
in the Japanese health care system.  Such  reimbursement  approvals have not yet
been obtained and there can be no assurance that the Company or Century  Medical
will ever obtain such approvals.  Failure to obtain  reimbursement  approval for
the TUNA  procedure  in Japan could  preclude  the  commercial  viability of the
Company's  products  in Japan and could  have a material  adverse  effect on the
Company's business, financial condition and results of operations.

         Limited Manufacturing  Experience;  Scale-Up Risk; Product Recall Risk.
VidaMed purchases  components used in the TUNA system from various suppliers and
relies on single  sources for several  components.  Delays  associated  with any
future  component   shortages,   particularly  as  the  Company  scales  up  its
manufacturing  activities in support of commercial sales,  could have a material
adverse  effect on the Company's  business,  financial  condition and results of
operations.

         The  Company   currently   manufactures  the  TUNA  system  in  limited
quantities  at its United  Kingdom  facility.  However,  the Company has limited
experience in manufacturing its products in commercial quantities. Manufacturers
often encounter difficulties in scaling up production of new products, including
problems involving production yields,  quality control and assurance,  component
supply and lack of qualified personnel.


                                       -6-

<PAGE>



Difficulties  encountered  by VidaMed  in  manufacturing  scale-up  could have a
material  adverse  effect on its  business,  financial  condition and results of
operations.  In mid-1994, the Company experienced problems at its United Kingdom
facility  with  respect  to  mechanical  aspects of the TUNA  catheter's  needle
assembly.  As a result,  a  substantial  portion of  catheters in the field were
returned  for rework.  The Company has  modified  its  manufacturing  process to
rectify these problems and has completed product rework.  However,  there can be
no assurance that future manufacturing  difficulties or product recalls,  either
of which  could  have a  material  adverse  effect  on the  Company's  business,
financial condition and results of operations,  will not occur. In addition, the
Company's  new Fremont  facility  has  capacity to  manufacture  the TUNA system
headpiece  and the  Company  is  currently  in the  process of  qualifying  this
facility under FDA good  manufacturing  practice  regulations and under ISO 9000
standards.  The Company is also exploring  alternatives for  consolidating  TUNA
headpiece  manufacturing in Fremont.  Inability to obtain FDA good manufacturing
practice  and ISO 9000  qualification  for the  Fremont  facility,  or  problems
associated  with any future  consolidation  of  manufacturing  at such facility,
could have a material adverse effect on the Company's business.

         Any products manufactured or distributed by the Company pursuant to FDA
clearances or approvals are subject to pervasive  and  continuing  regulation by
FDA including  recordkeeping  requirements  and reporting of adverse  experience
with the use of the device. The Company's  manufacturing  facilities are subject
to periodic  inspection by FDA,  certain state  agencies and foreign  regulatory
agencies.  Failure to comply with regulatory  requirements could have a material
adverse  effect on the Company's  business.  There can be no assurance  that the
Company will not be required to incur  significant costs to comply with laws and
regulations in the future or that laws or  regulations  will not have a material
adverse effect upon the Company's business.

         Uncertainty Regarding Patents and Protection of Proprietary Technology.
The  Company  has been  issued 30 United  States  patents  covering  a method of
prostate  ablation using the TUNA System and the design of the TUNA System.  The
Company currently has approximately 27 patent applications on file in the United
States and over 80 corresponding  patent applications on file in various foreign
countries. In addition, the Company holds licenses to certain technology used in
the TUNA System.  There can be no assurance  that the  Company's  issued  United
States patents,  or any patents which may be issued as a result of the Company's
applications,  will offer any degree of  protection.  There can be no  assurance
that any of the Company's patents or patent applications will not be challenged,
invalidated  or  circumvented  in  the  future.  In  addition,  there  can be no
assurance that  competitors,  many of which have substantial  resources and have
made substantial investments in competing  technologies,  will not seek to apply
for and obtain patents that will prevent,  limit or interfere with the Company's
ability to make,  use or sell its  products  either in the  United  States or in
international markets.

         Intellectual Property Litigation Risks. The medical device industry has
been  characterized  by  extensive   litigation   regarding  patents  and  other
intellectual  property rights, and companies in the medical device industry have
employed intellectual property litigation to gain a competitive  advantage.  The
Company is aware of patents held by other  participants  in the BPH market,  and
there can be no assurance that the Company will not in the future become subject
to patent  infringement  claims  and  litigation  or United  States  Patent  and
Trademark Office ("USPTO") interference proceedings. The defense and prosecution
of  intellectual  property  suits,  USPTO inter ference  proceedings and related
legal and  administrative  proceedings are both costly and time consuming.  Liti
gation may be necessary  to enforce  patents  issued to the Company,  to protect
trade   secrets  or  know-how   owned  by  the  Company  or  to  determine   the
enforceability, scope and validity of the proprietary rights of others.

         Any litigation or interference  proceedings could result in substantial
expense to the  Company and  significant  diversion  of effort by the  Company's
technical and management  personnel.  An adverse  determination in litigation or
interference  proceedings  to which the Company may become a party could subject
the Company to  significant  liabilities to third parties or require the Company
to seek licenses from third parties. Although


                                       -7-

<PAGE>



patent and intellectual  property disputes in the medical device area have often
been settled through  licensing or similar  arrangements,  costs associated with
such  arrangements  may be  substantial  and could  include  ongoing  royalties.
Furthermore,  there  can  be no  assurance  that  necessary  licenses  would  be
available  to the  Company  on  satisfactory  terms or at all.  Accordingly,  an
adverse  determination in a judicial or administrative  proceeding or failure to
obtain  necessary  licenses  could  prevent the Company from  manufacturing  and
selling  its  products,  which  would  have a  material  adverse  effect  on the
Company's business, financial condition and results of operations.

         In  addition  to  patents,  the  Company  relies on trade  secrets  and
proprietary  know-how,  which it seeks to protect,  in part, through proprietary
information  agreements  with  employees,  consultants  and other  parties.  The
Company's proprietary  information agreements with its employees and consultants
contain  industry  standard pro visions  requiring such individuals to assign to
the  Company  without  additional  consideration  any  inventions  con ceived or
reduced to practice by them while  employed or retained by the Company,  subject
to customary excep tions. There can be no assurance that proprietary information
agreements with employees, consultants and others will not be breached, that the
Company would have adequate remedies for any breach, or that the Company's trade
secrets  will not  otherwise  become  known  to or  independently  developed  by
competitors.

         Rights to  Founder's  Inventions  Limited to Urology.  The  proprietary
information  agreement  between the Company  and Stuart D.  Edwards,  one of the
Company's  founders,  obligates  Mr.  Edwards  to  assign  to the Com  pany  his
inventions and related  intellectual  property only in the field of urology. Mr.
Edwards has assigned to Rita Medical  Systems,  Inc.  ("RITA") his inventions in
the cancer field. Mr. Edwards has conceived of, and may continue to conceive of,
various  medical  device  product  concepts for other fields outside of urology,
including  certain product concepts for the treatment of snoring and sleep apnea
that have been assigned to an unrelated third party and certain product concepts
in the  gynecology  field that have been  licensed  to another  unrelated  third
party. Such party also has an option to purchase all future technology developed
by Mr.  Edwards in the gynecology  field.  Product  concepts  outside of urology
developed by Mr. Edwards will not be owned by or commercialized through VidaMed,
and VidaMed will have no rights or ownership interests with respect thereto.

         Risks  Relating to RITA.  The Company has entered into a cross  license
agreement with RITA, formerly ZoMed International, Inc. Under the cross license,
RITA has the right to use VidaMed technology in the cancer field and VidaMed has
the right to use RITA  technology in the  treatment of  urological  diseases and
disorders.  The cross license  between VidaMed and RITA allows both companies to
develop  products  for  treatment  of  prostate  cancer and cancers of the lower
urinary  tract,  and VidaMed and RITA may therefore  become  competitors in this
field.

         Product Liability Risk; Limited Insurance Coverage. The business of the
Company entails the risk of product liability  claims.  Although the Company has
not experienced any product liability claims to date, any such claims could have
an adverse  impact on the  Company.  The  Company  maintains  product  liability
insurance and evaluates its insurance  requirements  on an ongoing basis.  There
can be no assurance that product liability claims will not exceed such insurance
coverage  limits  or that  such  insurance  will be  available  on  commercially
reasonable terms or at all.

         Effect  of  Certain  Charter,  Bylaw  and  Other  Provisions.   Certain
provisions of the Company's Certificate of Incorporation and Bylaws may have the
effect  of  making  it  more  difficult  for a third  party  to  acquire,  or of
discouraging a third party from  attempting to acquire,  control of the Company.
Such provisions could limit the price that certain investors might be willing to
pay in the future for shares of the  Company's  Common  Stock.  Certain of these
provisions  allow the  Company  to issue  Preferred  Stock  without  any vote or
further action by the  stockholders,  eliminate the right of stockholders to act
by written  consent  without a meeting and  eliminate  cumu-

                                      -8-
<PAGE>

lative voting in the election of directors.  These  provisions  may make it more
difficult for stockholders to take certain  corporate actions and could have the
effect of delaying or preventing a change in control of the Company.

         No Public Market for the Warrants;  Arbitrary Determination of Purchase
Price; Price Volatility. Prior to the offering of the Securities, there has been
no public market for the Warrants,  and there can be no assurance that an active
trading market will develop in any of the Warrants  after any offering  thereof.
The  Company  does not intend to apply for the  listing of the  Warrants  on any
exchange.  The  exercise  price  and  terms of the  Warrants  may be  determined
arbitrarily  by  negotiations  between the Company  and any  purchaser  thereof.
Factors con sidered in such  negotiations,  in  addition  to  prevailing  market
conditions,  may include the history and prospects for the industry in which the
Company competes,  an assessment of the Company's  management,  the prospects of
the Company,  its capital  structure  and certain  other  factors as were deemed
relevant.  Therefore,  the  exercise  price  and terms of the  Warrants  may not
necessarily  bear  any  relationship  to  established   valuation  criteria  and
therefore  may not be  indicative of prices that may prevail at any time or from
time to time in a public market for the Warrants.

         Legal  Restrictions  on Sales of Shares  Underlying  the Warrants.  The
Warrants  will  not be  exercisable  unless,  at the time of the  exercise,  the
Company has a current  prospectus  covering the shares of Common Stock  issuable
upon exercise of the Warrants,  and such shares have been registered,  qualified
or deemed to be exempt  under the  securities  laws of the state of residence of
the  exercising  holder of the Warrants.  Although the Company has undertaken to
use its best  efforts  to have all the  shares of  Common  Stock  issuable  upon
exercise of the Warrants  registered or qualified on or before the exercise date
and to maintain a current  prospectus  relating  thereto until the expiration of
the  Warrants,  there  can be no  assurance  that it will be able to do so.  The
Warrants may be deprived of value if a current prospectus covering the shares of
Common Stock issuable upon the exercise of the Warrants is not kept effective.



                                       -9-

<PAGE>



                             SELLING SECURITYHOLDERS
<TABLE>

         The following table provides the names of the Selling  Security Holders
and the number of Securities  being offered by each of them. After completion of
this  offering,  assuming all the Shares and Warrant  Shares  offered hereby are
sold, no Selling  Security Holder will hold any securities of the Company except
as set forth in the footnotes below.
<CAPTION>
Selling Security Holders                             No. of Shares Offered              No. of Warrant Shares Offered
- ------------------------                             ---------------------              -----------------------------
<S>                                                      <C>                                        <C>    
INVESCO Trust Company(1)                                 1,052,632                                  263,158

Kane & Co.                                                 147,400                                   36,850
for Arthur D. Little Employee Investment Plan

Mellon Bank N.A.                                           694,700                                  173,675
Custodian for  PERSI - Zesiger Capital for Public
Employee Retirement System of Idaho

Westcoast & Co.                                            210,500                                   52,625
for State of Oregon PERS/ZCG

ProMed Partners, LP                                         55,264                                   13,816

David B. Musket                                             41,364                                   10,341

Augusta Capital Management                                 105,264                                   26,316

Circle F Ventures (2)                                      210,528                                   52,632
<FN>
- -----------------------

(1)   Consists of shares held by Global Health  Sciences  Fund.  GHS is a mutual
      fund company advised by INVESCO Funds Group,  Inc.,  which is a subsidiary
      of INVECO PLC.  INVESCO  Trust  Company is a subsidiary  of INVESCO  Funds
      Group, Inc.

(2)   Circle F Ventures  owns  71,900  shares of Common  Stock of the Company in
      addition to the Shares and the Warrant Shares offered hereby.
</FN>
</TABLE>

         No  Selling  Security  Holder  has held any  position,  office or other
material  relationship with the Company or any of its affiliates within the past
three years.

         The  Company  sold  2,517,652  Shares of Common  Stock and  Warrants to
purchase  629,413  Shares of Common  Stock to the  Selling  Security  Holders in
private  transactions  in September  1997.  Such Shares,  including  the Warrant
Shares issuable upon exercise of the Warrants, are registered hereunder.



                                      -10-

<PAGE>



         Each Selling  Security  Holder has  represented  to the Company that it
purchased  the  Securities  for  investment,   with  no  present   intention  of
distribution.  However,  in recognition of the fact that investors,  even though
purchasing the Securities for  investment,  may wish to be legally  permitted to
sell their securities when they deem appropriate, the Company has filed with the
Commission under the Securities Act the  Registration  Statement with respect to
the  resale  of the  Shares  and the  Warrant  Shares  from  time to time in the
over-the-counter market through Nasdaq or in privately negotiated  transactions,
through the writing of options on the Shares or the Warrant Shares, or through a
combination  of the  foregoing.  The Company has agreed to prepare and file such
amendments and supplements to the Registration  Statement as may be necessary to
keep  the  Registration  Statement  effective  for four  years  from the date of
closing of the issuance of the Shares.



                                      -11-

<PAGE>


                              PLAN OF DISTRIBUTION

         The sale of the  Securities  by the  Selling  Security  Holders  may be
effected  from  time to  time in  transactions  in the  over-the-counter  market
through Nasdaq,  in privately  negotiated  transactions,  through the writing of
options on the Securities,  or through a combination of such methods of sale, at
fixed prices,  that may be changed,  at market prices  prevailing at the time of
sale,  at prices  relating to such  prevailing  market  prices or at  negotiated
prices. The Selling Security Holders may effect such transactions by selling the
Securities to or through  broker-dealers,  and such  broker-dealers  may receive
compensation  in the form of  discounts,  concessions  or  commissions  from the
Selling  Security  Holders and/or the purchasers of the Securities for whom such
broker-dealers may act as agents or to whom they may sell as principals, or both
(which  compensation  as to a  particular  broker-dealer  may  be in  excess  of
customary compensation).  Any broker-dealer may act as a broker-dealer on behalf
of one or more of the Selling  Security  Holders in connection with the offering
of certain of the Securities by the Selling Security Holders.

         The  Selling  Security  Holders  and  any  broker-dealers  who  act  in
connection  with  the  sale of the  Securities  hereunder  may be  deemed  to be
"underwriters"  within the meaning of Section 2(11) of the  Securities  Act, and
any  commissions  received by them and profit on any resale of the Securities as
principal might be deemed to be underwriting discounts and commissions under the
Securities Act. The Company has agreed to indemnify the Selling Security Holders
against certain liabilities, including liabilities under the Securities Act.


                                  LEGAL MATTERS

         The validity of the Common Stock offered hereby will be passed upon for
VidaMed by Wilson  Sonsini  Goodrich & Rosati,  Professional  Corporation,  Palo
Alto, California.  As of the date of this Prospectus,  members of Wilson Sonsini
Goodrich & Rosati, Professional Corporation, who have represented the Company in
connec tion with this offering,  beneficially own approximately  8,809 shares of
the Company's  Common Stock.  J. Casey  McGlynn,  Secretary of the Company,  and
Christopher  D.  Mitchell,  Assistant  Secretary of the Company,  are members of
Wilson Sonsini Goodrich & Rosati, Professional Corporation.





                                     EXPERTS

         The Consolidated  Financial Statements of VidaMed, Inc. incorporated by
reference in VidaMed, Inc.'s Annual Report (Form 10-K) for the fiscal year ended
December 31, 1996, have been audited by Ernst & Young LLP, independent auditors,
as set forth in their  report  thereon  incorporated  by  reference  therein and
incorporated  herein by reference.  Such Consolidated  Financial  Statements are
incorporated  herein by  reference  in reliance  upon such report given upon the
authority of such firm as experts in accounting and auditing.



                                      -12-

<PAGE>

================================================================================

         No  dealer,   salesperson  or  other  person  has  been  authorized  in
connection  with any offering made hereby to give any information or to make any
representations  other than those  contained in or  incorporated by reference in
this Prospectus, and, if given or made, such information or representations must
not be  relied  upon  as  having  been  authorized.  This  Prospectus  does  not
constitute  an offer to sell or a  solicitation  of an offer to buy any security
other than the securities  offered  hereby,  nor do they  constitute an offer to
sell or a solicitation of any offer to buy any of the securities  offered hereby
to any person in any  jurisdiction in which such offer or solicitation  would be
unlawful or to any person to whom it is  unlawful.  Neither the delivery of this
Prospectus nor any offer or sale made hereunder shall,  under any circumstances,
create  any  implication  that  there has been no change in the  affairs  of the
Company  or that the  information  contained  herein is  correct  as of any time
subsequent to the date hereof.





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

                                TABLE OF CONTENTS

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


                                                                            Page
                                                                            ----
Available Information.........................
Information Incorporated by
 Reference....................................
The Company...................................
Risk Factors..................................
Selling Securityholders ......................
Plan of Distribution..........................
Legal Matters.................................
Experts.......................................


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


================================================================================

================================================================================



                                  VIDAMED, INC.





                        3,147,065 Shares of Common Stock





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

                                   PROSPECTUS

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







                              ______________ , 1997


================================================================================


<PAGE>



                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS


Item 14.  Other Expenses of Issuance and Distribution

         The following table sets forth the various  expenses in connection with
the sale  and  distribution  of the  securities  being  registered,  other  than
underwriting  discounts and commissions.  All of the amounts shown are estimates
except the Securities and Exchange Commission  registration fee, the NASD filing
fee and the Nasdaq National Market listing fee.



Securities and Exchange Commission registration fee..............  $ 5,569
Nasdaq National Market listing fee...............................   17,500
Printing and engraving expenses..................................   15,000
Legal fees and expenses..........................................   25,000
Accounting fees and expenses.....................................    7,500
Transfer agent and registrar fees and expenses...................    1,500
Miscellaneous....................................................    2,931
                                                                   -------
         Total...................................................  $75,000
                                                                   =======


Item 15.  Indemnification of Directors and Officers

         Section  145  of  the  Delaware  General   Corporation  Law  permits  a
corporation to include in its charter  documents,  and in agreements between the
corporation  and its directors and officers,  provisions  expanding the scope of
indemnification beyond that specifically provided by the current law.

         Article VIII of the Registrant's  Certificate of Incorporation provides
for the  indemnification  of directors to the fullest extent  permissible  under
Delaware law.

         Article VI of the Registrant's  Bylaws provides for the indemnification
of officers,  directors and third parties acting on behalf of the corporation if
such person acted in good faith and in a manner reasonably believed to be in and
not opposed to the best  interest of the  corporation,  and, with respect to any
criminal action or proceeding,  the  indemnified  party had no reason to believe
his conduct was unlawful.

         The Registrant  has entered into  indemnification  agreements  with its
directors and executive officers, in addition to indemnification provided for in
the Registrant's  Bylaws, and intends to enter into  indemnification  agreements
with any new directors and executive officers in the future.




                                      II-1

<PAGE>


Item 16.  Exhibits

Exhibit
Number             Description
- -------- -----------------------------------------------------------------------
 1.1+    Purchase  Agreement,  dated  as of  September  22,  1997,  between  the
         Registrant and certain  purchasers named therein and the form of Common
         Stock Purchase Warrant attached thereto as Exhibit B.
 4.1++   Certificate of Incorporation of Registrant
 4.2++   Restated Bylaws of Registrant
 4.3+++  Form of Common Stock Certificate
 4.4++++ Preferred Shares Rights Agreement dated as of January 27, 1997, between
         the  Registrant  and  American   Securities  Transfer  &  Trust,  Inc.,
         including  the  Certificate  of   Designations,   the  Form  of  Rights
         Certificate  and the Summary of Rights  attached  thereto as Exhibit A,
         Exhibit B and Exhibit C, respectively.
 4.5+    Form of Common Stock Purchase Warrant
 5.1     Opinion of Wilson Sonsini Goodrich & Rosati, Professional Corporation
23.1     Consent of Ernst & Young, Independent Auditors
23.2     Consent of Wilson Sonsini Goodrich & Rosati,  Professional  Corporation
         (included in Exhibit 5.1)
24.1     Power of Attorney (included on P. II-4)

- ---------------------------
+        Filed as exhibit 99.1 to the  Registrant's  Current  Report on Form 8-K
         filed with the Commission on September 24, 1997 and incorporated herein
         by reference.

++       Filed as an exhibit to the Registrant's  Annual Report on Form 10-K for
         the fiscal  year ended  December  31, 1995 and  incorporated  herein by
         reference.

+++      Filed as an exhibit to the Registrant's  Registration Statement on Form
         S-1 (File No. 33-90746) and incorporated herein by reference.

++++     Filed as an Exhibit to the Registrant's  Registration Statement on Form
         8-A filed with the  Commission  on January  31,  1997 and  incorporated
         herein by reference.

Item 17.  Undertaking

         Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors,  officers and persons controlling the
Registrant pursuant to the foregoing  provisions,  or otherwise,  the Registrant
has been informed that in the opinion of the Securities and Exchange  Commission
such indemnification is against public policy as expressed in the Securities Act
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 of controlling  persons 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 and will be governed by the final  adjudication
of such issue.


                                      II-2

<PAGE>




         The undersigned Registrant hereby undertakes:

         1. To file,  during any period in which offers or sales are being made,
a  post-effective  amendment  to this  registration  statement  to  include  any
material  information  with respect to the plan of  distribution  not previously
disclosed  in  the  registration  statement  or  any  material  change  to  such
information in the registration statement.

         2.  That,  for the  purpose  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 of 1933 shall be deemed to
be part of this registration statement as of the time it was declared effective.

         3. That, for purposes 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.

         4. For purposes of determining  any liability  under the Securities Act
of 1933, each filing of the Registrant's annual report pursuant to Section 13(a)
or Section 15(d) of the Securities  Exchange Act of 1934 that is incorporated by
reference in the registration statement 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.

         5. To remove from  registration by means of a post-effective  amendment
any of the securities being registered which remain unsold at the termination of
the offering.




                                      II-3

<PAGE>



                                   SIGNATURES

         Pursuant to the  requirements  of the Securities Act of 1933,  VidaMed,
Inc.  certifies  that it has  reasonable  grounds to  believe  that it meets all
requirements  for  filing  on Form S-3 and has  duly  caused  this  registration
statement  to be  signed  on its  behalf  by  the  undersigned,  thereunto  duly
authorized,  in the City of Fremont,  State of  California,  on this 23rd day of
September 1997.

                                       VIDAMED, INC.


                                       By: /s/ James A. Heisch
                                           -------------------------------------
                                           James A. Heisch
                                           President and Chief Executive Officer

                                POWER OF ATTORNEY

         KNOW ALL PERSONS BY THESE  PRESENTS,  that each person whose  signature
appears  below hereby  constitutes  and appoints  James A. Heisch and Richard D.
Brounstein, as his attorney-in-fact, with full power of substitution, for him in
any and all  capacities,  to sign any and all  amendments  to this  Registration
Statement  and to file the same,  with exhibits  thereto and other  documents in
connection  therewith,  with the  Securities  and  Exchange  Commission,  hereby
ratifying  and  confirming  our  signatures  as they may be  signed  by our said
attorney to any and all amendments to said Registration Statement.
<TABLE>

         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.

<CAPTION>

                   Signature                                            Title                                Date         
- -----------------------------------------       ------------------------------------------------       ------------------
<S>                                              <C>                                                    <C>
/s/ James A. Heisch                              President and Chief Executive Officer and              Sept. 23, 1997
- ---------------------------------                Director (Principal Executive Officer)       
     (James A. Heisch)                                                                                  Sept. 23, 1997

/s/ Richard D. Brounstein
- ---------------------------------                Vice President of Finance and Chief
   (Richard D. Brounstein)                       Financial Officer (Principal Financial Officer         Sept. 23, 1997
                                                 and Principal Accounting Officer)

/s/ David L. Douglass                            Director                                               
- --------------------------------
     (David L. Douglass)

/s/ Stuart D. Edwards                            Director                                               Sept. 23, 1997
- --------------------------------
     (Stuart D. Edwards)

/s/ Wayne I. Roe                                 Director                                               Sept. 23, 1997
- --------------------------------
       (Wayne I. Roe)

/s/ Michael H. Spindler                          Director                                               Sept. 23, 1997
- --------------------------------
    (Michael H. Spindler)
</TABLE>



                                      II-4

<PAGE>



                                  Exhibit Index

Exhibit
Number             Description
- -------- -----------------------------------------------------------------------
 1.1+    Purchase  Agreement,  dated  as of  September  22,  1997,  between  the
         Registrant and certain  purchasers named therein and the form of Common
         Stock Purchase Warrant attached thereto as Exhibit B.
 4.1++   Certificate of Incorporation of Registrant
 4.2++   Restated Bylaws of Registrant
 4.3+++  Form of Common Stock Certificate
 4.4+++  Preferred Shares Rights Agreement dated as of January 27, 1997, between
         the  Registrant  and  American   Securities  Transfer  &  Trust,  Inc.,
         including  the  Certificate  of   Designations,   the  Form  of  Rights
         Certificate  and the Summary of Rights  attached  thereto as Exhibit A,
         Exhibit B and Exhibit C, respectively.
 4.5+    Form of Common Stock Purchase Warrant (included in Exhibit 1.1)
 5.1     Opinion of Wilson Sonsini Goodrich & Rosati, Professional Corporation
23.1     Consent of Ernst & Young, Independent Auditors
23.2     Consent of Wilson Sonsini Goodrich & Rosati,  Professional  Corporation
         (included in Exhibit 5.1)
24.1     Power of Attorney (included on P. II-4)

- ---------------------------
+       Filed as exhibit  99.1 to the  Registrant's  Current  Report on Form 8-K
        filed with the Commission on September 24, 1997 and incorporated  herein
        by reference.

++      Filed as an exhibit to the  Registrant's  Annual Report on Form 10-K for
        the fiscal  year ended  December  31,  1995 and  incorporated  herein by
        reference.

+++     Filed as an exhibit to the Registrant's Registration Statement  on  Form
        S-1 (File No. 33-90746) and incorporated herein by reference.

++++    Filed as an Exhibit to the Registrant's  Registration  Statement on Form
        8-A filed with the  Commission  on  January  31,  1997 and  incorporated
        herein by reference.

                                      II-5



                                                                     Exhibit 5.1


                               September 22, 1997



VidaMed, Inc.
46107 Landing Parkway
Fremont, California 94538

         Re:    VidaMed, Inc. (the "Company") Registration Statement on Form S-3

Ladies and Gentlemen:

         We have  examined  the  Registration  Statement on Form S-3 to be filed
with the Securities and Exchange Commission (the "Registration  Statement"),  in
connection with the  registration  under the Securities Act of 1933, as amended,
of a shelf offering of (i) 2,517,652 shares of the Company's Common Stock, $.001
par  value  per  share  (the  "Shares")  and (ii) up to  629,413  shares  of the
Company's  Common  Stock,  $.001 par value per share,  issuable upon exercise of
certain warrants to purchase Common Stock of the Company (the "Warrant Shares").
As your  counsel,  we have  examined  the  proceedings  proposed  to be taken in
connection with the sale and issuance of the above-referenced securities.

         It is our opinion that the Shares are, and that the Warrant Shares when
issued upon exercise of the warrants  referred to in the Registration  Statement
will be, legally and validly issued, fully paid and nonassessable.

         We consent to the use of this opinion as an exhibit to the Registration
Statement,  and further consent to the use of our name wherever appearing in the
Registration  Statement,  including the Prospectus  constituting a part thereof,
and any amendment thereto.


                                            Very truly yours,

                                            WILSON, SONSINI, GOODRICH & ROSATI
                                            Professional Corporation

                                            /s/ Wilson Sonsini Goodrich & Rosati


                                      II-6


                                                                    Exhibit 23.1


               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

         We consent to the reference to our firm under the caption  "Experts" in
the Registration  Statement (Form S-3) and related  Prospectus of VidaMed,  Inc.
for the  registration of 2,517,652  shares of its Common Stock and up to 629,413
shares of Common Stock  issuable upon  exercise of certain  warrants to purchase
shares of Common  Stock and to the  incorporation  by  reference  therein of our
report  dated  January 17,  1997,  with  respect to the  consolidated  financial
statements of VidaMed, Inc. incorporated by reference in its Annual Report (Form
10-K) for the year  ended  December  31,  1996,  filed with the  Securities  and
Exchange Commission.


                                                     ERNST & YOUNG LLP



Palo Alto, California
September 19, 1997

                                      II-7





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