1
                                                                       EXHIBIT 1
   
    




   
                        [FORM OF UNDERWRITING AGREEMENT]
    



                                2,000,000 SHARES


                               NOVOSTE CORPORATION

                          COMMON STOCK, $.01 PAR VALUE






   
                             UNDERWRITING AGREEMENT
    




__________, 1999
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                                                             _____________, 1999



Morgan Stanley & Co. Incorporated
Piper Jaffray Inc.
Hambrecht & Quist LLC
c/o   Morgan Stanley & Co. Incorporated
1585 Broadway
New York, New York  10036

Dear Sirs and Mesdames:


         NOVOSTE CORPORATION, a Florida corporation (the "COMPANY"), proposes to
issue and sell to the several Underwriters named in Schedule I hereto (the
"UNDERWRITERS") 2,000,000 shares of its Common Stock, $.01 par value (the "FIRM
SHARES"). The Company and certain shareholders of the Company (the "SELLING
SHAREHOLDERS") named in Schedule II hereto also severally propose to sell to the
several Underwriters not more than an additional 300,000 shares of Common Stock,
$.01 par value, of the Company (the "ADDITIONAL SHARES"), if and to the extent
that you shall have determined to exercise, on behalf of the Underwriters, the
right to purchase such shares of common stock granted to the Underwriters in
Section 3 hereof. Of the Additional Shares, 100,000 shares are to be issued and
sold by the Company and 200,000 shares are to be sold by the Selling
Shareholders, each Selling Shareholder selling the amount set forth opposite
such Selling Stockholder's name in Schedule II hereto. The Firm Shares and the
Additional Shares are hereinafter collectively referred to as the "SHARES." The
shares of Common Stock, $.01 par value, of the Company to be outstanding after
giving effect to the sales contemplated hereby are hereinafter referred to as
the "COMMON STOCK." The Company and the Selling Shareholders are hereinafter
sometimes collectively referred to as the "SELLERS."

         The Company has filed with the Securities and Exchange Commission (the
"COMMISSION") a registration statement on Form S-3 (File No. 333-________),
including a prospectus, relating to the Shares. The registration statement as
amended at the time it becomes effective, including the information (if any)
deemed to be part of the registration statement at the time of effectiveness
pursuant to Rule 430A under the Securities Act of 1933, as amended (the
"SECURITIES ACT"), is hereinafter referred to as the "REGISTRATION STATEMENT";
the prospectus in the form first used to confirm sales of Shares is hereinafter
referred to as the "PROSPECTUS." The term "preliminary prospectus" as used in
this Agreement shall mean each preliminary prospectus included in the
Registration 



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Statement prior to the time it becomes effective. Unless otherwise indicated,
any reference herein to the Registration Statement, the Prospectus or the
preliminary prospectus shall include all documents incorporated therein by
reference. If the Company has filed an abbreviated registration statement to
register additional shares of Common Stock pursuant to Rule 462(b) under the
Securities Act (the "RULE 462 REGISTRATION STATEMENT"), then any reference
herein to the term "REGISTRATION STATEMENT" shall be deemed to include such Rule
462 Registration Statement.

         1. Representations and Warranties of the Company. The Company
represents and warrants to and agrees with each of the Underwriters that:

                  (a) The Registration Statement has become effective; no stop
              order suspending the effectiveness of the Registration Statement
              is in effect, and no proceedings for such purpose are pending
              before or threatened by the Commission.

                  (b) (i) Each document, if any, filed or to be filed pursuant
              to the Securities Exchange Act of 1934, as amended (the "EXCHANGE
              ACT"), and incorporated by reference in the Prospectus complied,
              or will comply when so filed, in all material respects with the
              Exchange Act and the applicable rules and regulations of the
              Commission thereunder, (ii) the Registration Statement, when it
              became effective, did not contain and, as amended or supplemented,
              if applicable, will not contain any untrue statement of a material
              fact or omit to state a material fact required to be stated
              therein or necessary to make the statements therein not
              misleading, (iii) the Registration Statement and the Prospectus
              comply and, as amended or supplemented, if applicable, will comply
              in all material respects with the Securities Act and the
              applicable rules and regulations of the Commission thereunder and
              (iv) the Prospectus does not contain and, as amended or
              supplemented, if applicable, will not contain any untrue statement
              of a material fact or omit to state a material fact necessary to
              make the statements therein, in the light of the circumstances
              under which they were made, not misleading, except that the
              representations and warranties set forth in this paragraph do not
              apply to statements or omissions in the Registration Statement or
              the Prospectus based upon information relating to any Underwriter
              furnished to the Company in writing by such Underwriter through
              you expressly for use therein.

                  (c) The Company has been duly incorporated, is validly
              existing as a corporation in good standing under the laws of the
              State of Florida, has the corporate power and authority to own its
              property and to conduct its business as described in the
              Prospectus and is duly qualified to transact business and is in
              good standing in each jurisdiction in which the conduct of its
              business or its ownership or leasing of property requires such
              qualification, except to the 



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              extent that the failure to be so qualified or be in good standing
              would not have a material adverse effect on the Company and its
              subsidiaries, taken as a whole.

                  (d) Each subsidiary of the Company has been duly incorporated,
              is validly existing as a corporation in good standing under the
              laws of the jurisdiction of its incorporation, has the corporate
              power and authority to own its property and to conduct its
              business as described in the Prospectus and is duly qualified to
              transact business and is in good standing in each jurisdiction in
              which the conduct of its business or its ownership or leasing of
              property requires such qualification, except to the extent that
              the failure to be so qualified or be in good standing would not
              have a material adverse effect on the Company and its
              subsidiaries, taken as a whole; all of the issued shares of
              capital stock of each subsidiary of the Company have been duly and
              validly authorized and issued, are fully paid and non-assessable
              and are owned directly by the Company, free and clear of all
              liens, encumbrances, equities or claims.

                  (e) This Agreement has been duly authorized, executed and
              delivered by the Company.

                  (f) The authorized capital stock of the Company conforms as to
              legal matters to the description thereof contained in the
              Prospectus.

                  (g) The shares of Common Stock outstanding prior to the
              issuance of the Shares to be sold by the Company have been duly
              authorized and are validly issued, fully paid and non-assessable.

                  (h) The Shares to be sold by the Company have been duly
              authorized and, when issued and delivered in accordance with the
              terms of this Agreement, will be validly issued, fully paid and
              non-assessable, and the issuance of such Shares will not be
              subject to any preemptive or similar rights.

                  (i) The execution and delivery by the Company of, and the
              performance by the Company of its obligations under, this
              Agreement will not contravene any provision of applicable law or
              conflict with, result in a breach of any of the terms and
              provisions of, or constitute a default under, the articles of
              incorporation or by-laws of the Company or any agreement or other
              instrument binding upon the Company or any of its subsidiaries
              that is material to the Company and its subsidiaries, taken as a
              whole, or any judgment, order or decree of any governmental body,
              agency or court having jurisdiction over the Company or any
              subsidiary, and no consent, approval, authorization or order of,
              or qualification with, any governmental body or agency is required
              for the performance by the Company of its obligations 

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              under this Agreement, except such as may be required by the
              securities or Blue Sky laws of the various states in connection
              with the offer and sale of the Shares.

                  (j) There has not occurred any material adverse change, or any
              development involving a prospective material adverse change, in
              the condition, financial or otherwise, or in the earnings,
              business or operations of the Company and its subsidiaries, taken
              as a whole, from that set forth in the Prospectus (exclusive of
              any amendments or supplements thereto subsequent to the date of
              this Agreement).

                  (k) There are no legal or governmental proceedings pending or
              threatened to which the Company or any of its subsidiaries is a
              party or to which any of the properties of the Company or any of
              its subsidiaries is subject that are required to be described in
              the Registration Statement or the Prospectus and are not so
              described or any statutes, regulations, contracts or other
              documents that are required to be described in the Registration
              Statement or the Prospectus or to be filed as exhibits to the
              Registration Statement that are not described or filed as
              required.

                  (l) Each preliminary prospectus filed as part of the
              registration statement as originally filed or as part of any
              amendment thereto, or filed pursuant to Rule 424 under the
              Securities Act, complied when so filed in all material respects
              with the Securities Act and the applicable rules and regulations
              of the Commission thereunder.

                  (m) The Company is not and, after giving effect to the
              offering and sale of the Shares and the application of the
              proceeds thereof as described in the Prospectus, will not be an
              "investment company" as such term is defined in the Investment
              Company Act of 1940, as amended.

                  (n) The Company and its subsidiaries (i) are in compliance
              with any and all applicable foreign, federal, state and local laws
              and regulations relating to the protection of human health and
              safety, the environment or hazardous or toxic substances or
              wastes, pollutants or contaminants (including, without limitation,
              all laws and regulations relating to radioactive materials)
              ("ENVIRONMENTAL LAWS"), (ii) have received all permits, licenses
              or other approvals required of them under applicable Environmental
              Laws to conduct their respective businesses and (iii) are in
              compliance with all terms and conditions of any such permit,
              license or approval, except where such noncompliance with
              Environmental Laws, failure to receive required permits, licenses
              or other approvals or failure to comply with the terms and
              conditions of such permits, licenses or approvals would not,
              singly or in the aggregate, 

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              have a material adverse effect on the Company and its
              subsidiaries, taken as a whole.

                  (o) There are no costs or liabilities associated with
              Environmental Laws (including, without limitation, any capital or
              operating expenditures required for clean-up, closure of
              properties or compliance with Environmental Laws or any permit,
              license or approval, any related constraints on operating
              activities and any potential liabilities to third parties) which
              would, singly or in the aggregate, have a material adverse effect
              on the Company and its subsidiaries, taken as a whole.

                  (p) Subsequent to the respective dates as of which information
              is given in the Registration Statement and the Prospectus, (i) the
              Company and its subsidiaries have not incurred any material
              liability or obligation, direct or contingent, nor entered into
              any material transaction not in the ordinary course of business;
              (ii) the Company has not purchased any of its outstanding capital
              stock, nor declared, paid or otherwise made any dividend or
              distribution of any kind on its capital stock other than ordinary
              and customary dividends; and (iii) there has not been any material
              change in the capital stock, short-term debt or long-term debt of
              the Company and its consolidated subsidiaries, except in each case
              as described in or contemplated by the Prospectus.

                  (q) The Company and its subsidiaries have good and marketable
              title in fee simple to all real property and good and marketable
              title to all personal property owned by them which is material to
              the business of the Company and its subsidiaries, in each case
              free and clear of all liens, encumbrances and defects except such
              as are described in the Prospectus or such as do not materially
              affect the value of such property and do not interfere with the
              use made and proposed to be made of such property by the Company
              and its subsidiaries; and any real or personal property and
              buildings held under lease by the Company and its subsidiaries are
              held by them under valid, subsisting and enforceable leases with
              such exceptions as are not material and do not interfere with the
              use made and proposed to be made of such property and buildings by
              the Company and its subsidiaries, in each case except as described
              in the Prospectus.

                  (r) The Company and its subsidiaries own or possess all
              material patents, patent rights, licenses, inventions, copyrights,
              know-how (including trade secrets and other unpatented and/or
              unpatentable proprietary or confidential information, systems or
              procedures), trademarks, service marks and trade names
              ("INTELLECTUAL PROPERTY") currently employed by them in connection
              with the business now operated by them and necessary for the
              conduct of their business as described in the Prospectus (the
              "COMPANY INTELLECTUAL


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              PROPERTY"), and, except as described in the Prospectus, neither
              the Company nor any of its subsidiaries has received any notice of
              any infringement of or conflict with the Intellectual Property
              rights of others, which, singly or in the aggregate, if the
              subject of an unfavorable decision, ruling or finding, would
              result in any material adverse effect on the condition, financial
              or otherwise, or in the earnings, business or operations of the
              Company and its subsidiaries, taken as a whole. To the best of the
              Company's knowledge, the Company Intellectual Property does not
              infringe upon or conflict with the Intellectual Property rights of
              others, in a manner which, singly or in the aggregate, if the
              subject of an unfavorable decision, ruling or finding, would
              result in any material adverse effect on the condition, financial
              or otherwise, or in the earnings, business or operations of the
              Company and its subsidiaries, taken as a whole.

                  (s) The Company and its subsidiaries have duly and properly
              filed or caused to be filed with the United States Patent and
              Trademark Office (the "PTO") and applicable foreign and
              international patent authorities all patent applications listed in
              Exhibit A hereto or described or referred to in the Prospectus
              (the "COMPANY PATENT APPLICATIONS"), and believe they have
              complied with the PTO's duty of candor and disclosure for the
              Company Patent Applications; the Company and its subsidiaries are
              unaware of any facts material to a determination of patentability
              regarding the Company Patent Applications not called to the
              attention of the PTO; the Company and its subsidiaries are unaware
              of any facts not called to the attention of the PTO which would
              preclude the grant of a patent for the Company Patent
              Applications; the Company and its subsidiaries have no knowledge
              of any facts which would preclude them from having clear title to
              the Company Patent Applications.

                  (t) No material labor dispute with the employees of the
              Company or any of its subsidiaries exists, except as described in
              or contemplated by the Prospectus, or, to the knowledge of the
              Company, is imminent; and the Company is not aware of any
              existing, threatened or imminent labor disturbance by the
              employees of any of its principal suppliers, manufacturers or
              contractors that could result in any material adverse effect on
              the Company and its subsidiaries, taken as a whole.

                  (u) The Company and each of its subsidiaries are insured by
              insurers of recognized financial responsibility against such
              losses and risks and in such amounts as are prudent and customary
              in the businesses in which they are engaged (including, without
              limitation, the aspects of its business involving radioactive
              materials); neither the Company nor any such subsidiary has been
              refused any insurance coverage sought or applied for; and neither
              the 


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              Company nor any such subsidiary has any reason to believe that it
              will not be able to renew its existing insurance coverage as and
              when such coverage expires or to obtain similar coverage from
              similar insurers as may be necessary to continue its business at a
              cost that could not have a material adverse effect on the Company
              and its subsidiaries, taken as a whole, except as described in or
              contemplated by the Prospectus.

                  (v) The Company and its subsidiaries possess all certificates,
              authorizations and permits issued by the appropriate federal,
              state or foreign regulatory authorities necessary to conduct their
              respective businesses, including without limitation, all such
              certificates, authorizations and permits required by the United
              States Food and Drug Administration (the "FDA"), the Nuclear
              Regulatory Commission (the "NRC") or any other federal, state or
              foreign agencies or bodies engaged in the regulation of medical
              devices or radioactive materials, and neither the Company nor any
              such subsidiary has received any notice of proceedings relating to
              the revocation or modification of any such certificate,
              authorization or permit which, singly or in the aggregate, if the
              subject of an unfavorable decision, ruling or finding, could
              result in a material adverse effect on the condition, financial or
              otherwise, or in the earnings, business or operations of the
              Company and its subsidiaries, taken as a whole. The Company and
              its subsidiaries are in compliance in all material respects with
              all applicable federal, state, local and foreign laws,
              regulations, orders and decrees, including without limitation, all
              regulations prescribed by the FDA, the NRC or any other federal,
              state or foreign agencies or bodies engaged in the regulation of
              medical devices or radioactive materials, except where
              noncompliance would not, singly or in the aggregate, have a
              material adverse effect on the Company and its subsidiaries, taken
              as a whole.

                  (w) The Company and each of its subsidiaries maintain a system
              of internal accounting controls sufficient to provide reasonable
              assurance that (i) transactions are executed in accordance with
              management's general or specific authorizations; (ii) transactions
              are recorded as necessary to permit preparation of financial
              statements in conformity with generally accepted accounting
              principles and to maintain asset accountability; (iii) access to
              assets is permitted only in accordance with management's general
              or specific authorization; and (iv) the recorded accountability
              for assets is compared with the existing assets at reasonable
              intervals and appropriate action is taken with respect to any
              differences.

                  (x) Ernst & Young LLP are, and during the periods covering
              their report included in the Registration Statement and the
              Prospectus were, independent accountants with respect to the
              Company as required by the Securities Act. 



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              The financial statements of the Company and its subsidiaries
              (together with the related notes thereto) included in the
              Registration Statement present fairly the financial position and
              results of operations of the Company and its subsidiaries at the
              respective dates and for the respective periods to which they
              apply, subject to normal year-end adjustments. Such financial
              statements (together with the related notes thereto) have been
              prepared in accordance with generally accepted accounting
              principles consistently applied throughout the periods involved
              except as otherwise stated therein.

                  (y) The Shares have been approved for quotation on the Nasdaq
              National Market, subject to official notice of issuance.

                  (z) Except as described in the Prospectus, there are no
              contracts, agreements or understandings between the Company and
              any person granting such person the right to require the Company
              to file a registration statement under the Securities Act with
              respect to any securities of the Company or to require the Company
              to include such securities with the Shares registered pursuant to
              the Registration Statement. All persons who possess such rights
              have effectively waived them with respect to the offering of the
              Shares.

                  (aa) Each material contract, agreement and license to which
              the Company or any of its subsidiaries is bound including, without
              limitation, [LIST OF MATERIAL CONTRACTS, INCLUDING SUPPLIER
              AGREEMENTS] is legal, valid, binding, enforceable, and in full
              force and effect. No party is in breach or default with respect to
              any such contract, agreement and license, and no event has
              occurred which with notice or lapse of time would constitute a
              breach or default, or permit termination, modification, or
              acceleration, under any such contract, agreement or license. No
              party has repudiated any provision of any such contract, agreement
              or license.

                  (bb) The Company has reviewed its operations and that of its
              subsidiaries to evaluate the extent to which the business or
              operations of the Company or any of its subsidiaries will be
              affected by the Year 2000 Problem (that is, any significant risk
              that computer hardware or software applications used by the
              Company and its subsidiaries will not, in the case of dates or
              time periods occurring after December 31, 1999, function at least
              as effectively as in the case of dates or time periods occurring
              prior to January 1, 2000); as a result of such review, (i) the
              Company has no reason to believe, and does not believe, that (A)
              there are any issues related to the Company's preparedness to
              address the Year 2000 Problem that are of a character required to
              be described or referred to in the Registration Statement or
              Prospectus which have not been accurately described in the
              Registration Statement or Prospectus and (B) the Year 2000 Problem
              will have a material adverse effect on the condition, 



   10

              financial or otherwise, or on the earnings, business or operations
              of the Company and its subsidiaries, taken as a whole, or result
              in any material loss or interference with the business or
              operations of the Company and its subsidiaries, taken as a whole;
              and (ii) the Company reasonably believes, after due inquiry, that
              the suppliers, vendors, customers or other material third parties
              used or served by the Company and such subsidiaries are addressing
              or will address the Year 2000 Problem in a timely manner, except
              to the extent that a failure to address the Year 2000 Problem by
              any supplier, vendor, customer or material third party would not
              have a material adverse effect on the condition, financial or
              otherwise, or on the earnings, business or operations of the
              Company and its subsidiaries, taken as a whole.

         2. Representations and Warranties of the Selling Shareholders. Each of
the Selling Shareholders represents and warrants to and agrees with each of the
Underwriters that:

                  (a) This Agreement has been duly authorized, executed and
              delivered by or on behalf of such Selling Shareholder.

                  (b) The execution and delivery by such Selling Shareholder of,
              and the performance by such Selling Shareholder of its obligations
              under, this Agreement, the Custody Agreement signed by such
              Selling Shareholder and ____________, as Custodian, relating to
              the deposit of the Shares to be sold by such Selling Shareholder
              (the "CUSTODY AGREEMENT") and the Power of Attorney appointing
              certain individuals as such Selling Shareholder's
              attorneys-in-fact to the extent set forth therein, relating to the
              transactions contemplated hereby and by the Registration Statement
              (the "POWER OF ATTORNEY") will not contravene any provision of
              applicable law, or any agreement or other instrument binding upon
              such Selling Shareholder or any judgment, order or decree of any
              governmental body, agency or court having jurisdiction over such
              Selling Shareholder, and no consent, approval, authorization or
              order of, or qualification with, any governmental body or agency
              is required for the performance by such Selling Shareholder of its
              obligations under this Agreement or the Custody Agreement or Power
              of Attorney of such Selling Shareholder, except such as may be
              required by the securities or Blue Sky laws of the various states
              in connection with the offer and sale of the Shares.

                  (c) On the Option Closing Date, such Selling Shareholder will
              have valid title to the Shares to be sold by such Selling
              Shareholder and the legal right and power, and all authorization
              and approval required by law, to enter into this Agreement, the
              Custody Agreement and the Power of Attorney and to sell, transfer
              and deliver the Shares to be sold by such Selling Shareholder.


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                  (d) On the Option Closing Date, the Shares to be sold by such
              Selling Shareholder pursuant to this Agreement will have been duly
              authorized and will be validly issued, fully paid and
              non-assessable.

                  (e) The Custody Agreement and the Power of Attorney have been
              duly authorized, executed and delivered by such Selling
              Shareholder and are valid and binding agreements of such Selling
              Shareholder.

                  (f) Delivery of the Shares to be sold by such Selling
              Shareholder pursuant to this Agreement will pass title to such
              Shares free and clear of any security interests, claims, liens,
              equities and other encumbrances.

                  (g) (i) All information relating to such Selling Shareholder
              furnished to the Company in writing by or on behalf of such
              Selling Shareholder for use in the Registration Statement or the
              Prospectus is, and on the Option Closing Date will be, true,
              correct, and complete, and does not, and on the Option Closing
              Date will not, contain any untrue statement of a material fact or
              omit to state any material fact necessary to make such information
              not misleading.

          3. Agreements to Sell and Purchase. The Company hereby agrees to sell
to the several Underwriters, and each Underwriter, upon the basis of the
representations and warranties herein contained, but subject to the conditions
hereinafter stated, agrees, severally and not jointly, to purchase from the
Company the respective number of Firm Shares set forth in Schedule I hereto
opposite its name at $______ a share (the "PURCHASE PRICE").

         On the basis of the representations and warranties contained in this
Agreement, and subject to its terms and conditions, each Seller, severally and
not jointly, agrees to sell to the Underwriters the Additional Shares, and the
Underwriters shall have a one-time right to purchase, severally and not jointly,
up to 300,000 Additional Shares at the Purchase Price. If you, on behalf of the
Underwriters, elect to exercise such option, you shall so notify the Company in
writing not later than 30 days after the date of this Agreement, which notice
shall specify the number of Additional Shares to be purchased by the
Underwriters and the date on which such shares are to be purchased. Such date
may be the same as the Closing Date (as defined below) but not earlier than the
Closing Date nor later than ten business days after the date of such notice.
Additional Shares may be purchased as provided in Section 5 hereof solely for
the purpose of covering over-allotments made in connection with the offering of
the Firm Shares. If any Additional Shares are to be purchased, each Underwriter
agrees, severally and not jointly, to purchase the number of Additional Shares
(subject to such adjustments to eliminate fractional shares as you may
determine) that bears the same proportion to the total 



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number of Additional Shares to be purchased as the number of Firm Shares set
forth in Schedule I hereto opposite the name of such Underwriter bears to the
total number of Firm Shares.

         Each Seller hereby agrees that, without the prior written consent of
Morgan Stanley & Co. Incorporated on behalf of the Underwriters, it will not,
during the period ending 90 days after the date of the Prospectus, (i) offer,
pledge, sell, contract to sell, sell any option or contract to purchase,
purchase any option or contract to sell, grant any option, right or warrant to
purchase, lend, or otherwise transfer or dispose of, directly or indirectly, any
shares of Common Stock or any securities convertible into or exercisable or
exchangeable for Common Stock or (ii) enter into any swap or other arrangement
that transfers to another, in whole or in part, any of the economic consequences
of ownership of the Common Stock, whether any such transaction described in
clause (i) or (ii) above is to be settled by delivery of Common Stock or such
other securities, in cash or otherwise. The foregoing sentence shall not apply
to (A) the Shares to be sold hereunder, (B) the issuance by the Company of
shares of Common Stock upon the exercise of an option or warrant or the
conversion of a security outstanding on the date hereof of which the
Underwriters have been advised in writing, or (C) transactions by any person
other than the Company relating to shares of Common Stock or other securities
acquired in open market transactions after the completion of the offering of the
Shares. In addition, each Selling Shareholder, agrees that, without the prior
written consent of Morgan Stanley & Co. Incorporated on behalf of the
Underwriters, it will not, during the period ending 90 days after the date of
the Prospectus, make any demand for, or exercise any right with respect to, the
registration of any shares of Common Stock or any security convertible into or
exercisable or exchangeable for Common Stock.

         4. Terms of Public Offering. The Sellers are advised by you that the
Underwriters propose to make a public offering of their respective portions of
the Shares as soon after the Registration Statement and this Agreement have
become effective as in your judgment is advisable. The Sellers are further
advised by you that the Shares are to be offered to the public initially at
$_____________ a share (the "PUBLIC OFFERING PRICE") and to certain dealers
selected by you at a price that represents a concession not in excess of $______
a share under the Public Offering Price, and that any Underwriter may allow, and
such dealers may reallow, a concession, not in excess of $_____ a share, to any
Underwriter or to certain other dealers.

         5. Payment and Delivery. Payment for the Firm Shares shall be made to
the Company in Federal or other funds immediately available in New York City
against delivery of such Firm Shares for the respective accounts of the several
Underwriters at 10:00 a.m., New York City time, on ____________, 1999, or at
such other time on the same or such other date, not later than _________, 1999,
as shall be designated in writing by you. The time and date of such payment are
hereinafter referred to as the "CLOSING DATE". The Closing of the offering and
sale of the Firm Shares will be held at the offices 



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of Ropes & Gray, One International Place, Boston, MA 02110.

         Payment for any Additional Shares to be sold by each Seller shall be
made to such Seller in Federal or other funds immediately available in New York
City against delivery of such Additional Shares for the respective accounts of
the several Underwriters at 10:00 a.m., New York City time, on the date
specified in the notice described in Section 3 or at such other time on the same
or on such other date, in any event not later than _______, 1999, as shall be
designated in writing by you. The time and date of such payment are hereinafter
referred to as the "OPTION CLOSING DATE". The Closing of the offering and sale
of the Additional Shares will be held at the offices of Ropes & Gray, One
International Place, Boston, MA 02110.

         Certificates for the Firm Shares and Additional Shares shall be in
definitive form and registered in such names and in such denominations as you
shall request in writing not later than one full business day prior to the
Closing Date or the Option Closing Date, as the case may be. The certificates
evidencing the Firm Shares and Additional Shares shall be delivered to you on
the Closing Date or the Option Closing Date, as the case may be, for the
respective accounts of the several Underwriters, with any transfer taxes payable
in connection with the transfer of the Shares to the Underwriters duly paid,
against payment of the Purchase Price therefor.

         6. Conditions to the Underwriters' Obligations. The obligations of the
Sellers to sell the Shares to the Underwriters and the several obligations of
the Underwriters to purchase and pay for the Shares on the Closing Date and the
Option Closing Date, as the case may be, are subject to the condition that the
Registration Statement shall have become effective not later than 5:30 p.m. (New
York City time) on the date hereof.

         The several obligations of the Underwriters are subject to the
following further conditions:

                  (a) Subsequent to the execution and delivery of this Agreement
              and prior to the Closing Date and the Option Closing Date, as the
              case may be:

                                    (i) there shall not have occurred any
                      downgrading, nor shall any notice have been given of any
                      intended or potential downgrading or of any review for a
                      possible change that does not indicate the direction of
                      the possible change, in the rating accorded any of the
                      Company's securities by any "nationally recognized
                      statistical rating organization," as such term is defined
                      for purposes of Rule 436(g)(2) under the Securities Act;
                      and

                                    (ii) there shall not have occurred any
                      change, or any development involving a prospective change,
                      in the condition, 


   14

                     financial or otherwise, or in the earnings, business or
                     operations of the Company and its subsidiaries, taken as a
                     whole, from that set forth in the Prospectus (exclusive of
                     any amendments or supplements thereto subsequent to the
                     date of this Agreement) that, in your judgment, is material
                     and adverse and that makes it, in your judgment,
                     impracticable to market the Shares on the terms and in the
                     manner contemplated in the Prospectus.

                  (b) The Underwriters shall have received on the Closing Date
              and the Option Closing Date, as the case may be, a certificate,
              dated such date and signed by an executive officer of the Company,
              to the effect set forth in Section 6(a)(i) above and to the effect
              that the representations and warranties of the Company contained
              in this Agreement are true and correct as of such date and that
              the Company has complied with all of the agreements and satisfied
              all of the conditions on its part to be performed or satisfied
              hereunder on or before such date.

                  The officer signing and delivering such certificate may rely
              upon the best of his or her knowledge as to proceedings
              threatened.

                  (c) The Underwriters shall have received on the Closing Date
              and the Option Closing Date, as the case may be, an opinion of
              Epstein Becker & Green, P.C., outside counsel for the Company,
              dated such date, to the effect that:

                                    (i) the Company has been duly incorporated,
                      is validly existing as a corporation in good standing
                      under the laws of the State of Florida, has the corporate
                      power and authority to own its property and to conduct its
                      business as described in the Prospectus and is duly
                      qualified to transact business and is in good standing in
                      each jurisdiction in which the conduct of its business or
                      its ownership or leasing of property requires such
                      qualification, except to the extent that the failure to be
                      so qualified or be in good standing would not have a
                      material adverse effect on the Company and its
                      subsidiaries, taken as a whole;

                                    (ii) each subsidiary of the Company has been
                      duly incorporated, is validly existing as a corporation in
                      good standing under the laws of the jurisdiction of its
                      incorporation, has the corporate power and authority to
                      own its property and to conduct its business as described
                      in the Prospectus and is duly qualified to transact
                      business and is in good standing in each jurisdiction in
                      which the conduct of its business or its ownership or
                      leasing of property requires such 

   15

                     qualification, except to the extent that the failure to be
                     so qualified or be in good standing would not have a
                     material adverse effect on the Company and its
                     subsidiaries, taken as a whole;

                                    (iii)  the authorized capital stock of the
                     Company conforms as to legal matters to the description
                     thereof contained in the Prospectus;

                                    (iv)   the shares of Common Stock 
                     outstanding prior to the issuance of the Shares to be sold
                     by the Company have been duly authorized and are validly
                     issued, fully paid and non-assessable;

                                    (v)    all of the issued shares of capital
                     stock of each subsidiary of the Company have been duly and
                     validly authorized and issued, are fully paid and
                     non-assessable and, to the best of such counsel's
                     knowledge, are owned directly by the Company, free and
                     clear of all liens, encumbrances, equities or claims;

                                    (vi)   the Shares to be sold by the Company
                     have been duly authorized and, when issued and delivered
                     in accordance with the terms of this Agreement, will be
                     validly issued, fully paid and non-assessable, and the
                     issuance of such Shares will not be subject to any
                     preemptive or similar rights under any provision of
                     applicable law, the articles of incorporation or by-laws
                     of the Company or, to the best of such counsel's
                     knowledge, any other agreement or instrument binding on
                     the Company and its subsidiaries;

                                    (vii)  this Agreement has been duly
                     authorized, executed and delivered by the Company;

                                    (viii) the execution and delivery by the
                     Company of, and the performance by the Company of its
                     obligations under, this Agreement will not contravene any
                     provision of applicable law or conflict with, result in a
                     breach of any of the terms and provisions of, or
                     constitute a default under, the articles of incorporation
                     or by-laws of the Company or, to the best of such
                     counsel's knowledge, any agreement or other instrument
                     binding upon the Company or any of its subsidiaries that
                     is material to the Company and its subsidiaries, taken as
                     a whole, or, to the best of such counsel's knowledge, any
                     judgment, order or decree of any governmental body, agency
                     or court having jurisdiction over the Company or any
                     subsidiary, and no consent, approval, authorization or
                     order of, or qualification with, any governmental body or
                     agency is required for the performance by the 


   16

                     Company of its obligations under this Agreement, except
                     such as may be required by the securities or Blue Sky laws
                     of the various states in connection with the offer and sale
                     of the Shares;

                            (ix) the statements (A) in the Prospectus under the
                     captions "Risk Factors - Dependence on Supplier of Beta
                     Radiation Isotope," "Risk Factors Issuance of a Preferred
                     Stock May Adversely Affect Rights of Common Shareholders or
                     Discourage a Takeover," "Risk Factors - Other Provisions
                     Discouraging a Takeover," "Risk Factors - Potential Adverse
                     Effect of Outstanding Registration Rights," "Business -
                     Manufacturing, Sources of Supply and Scale-Up", "Business
                     Patents and Proprietary Technology" (but only those
                     pertaining to the Company's relations with Emory University
                     and its staff physicians), "Principal and Selling
                     Shareholders" and "Underwriters," and (B) in the
                     Registration Statement in Item 15, in each case insofar as
                     such statements constitute summaries of the legal matters
                     or documents referred to therein, fairly present the
                     information called for with respect to such legal matters
                     and documents and fairly summarize the matters referred to
                     therein;

                            (x)  to the best of such counsel's knowledge, there
                     are no legal or governmental proceedings pending or
                     threatened to which the Company or any of its subsidiaries
                     is a party or to which any of the properties of the Company
                     or any of its subsidiaries is subject that are required to
                     be described in the Registration Statement or the
                     Prospectus and are not so described, or any statutes,
                     regulations, contracts or other documents that are required
                     to be described in the Registration Statement or the
                     Prospectus or to be filed as exhibits to the Registration
                     Statement that are not described or filed as required;

                            (xi)  the Company is not and, after giving effect to
                     the offering and sale of the Shares and the application of
                     the proceeds thereof as described in the Prospectus, will
                     not be an "investment company" as such term is defined in
                     the Investment Company Act of 1940, as amended;

                            (xii) except as described in the Prospectus, there
                     are no contracts, agreements or understandings between the
                     Company and any person granting such person the right to
                     require the Company to file a registration statement under
                     the Securities Act with respect to any securities of the
                     Company or to require the Company to include such
                     securities with the Shares registered pursuant to the
                     Registration Statement, and all persons who possess such
                     rights have effectively 


   17

                     waived them with respect to the offering of the Shares;

                            (xiii) the Registration Statement has become
                     effective and, to the best of such counsel's knowledge, no
                     stop order suspending the effectiveness of the Registration
                     Statement is in effect, and no proceedings for such purpose
                     are pending before or threatened by the Commission;

                            (xiv)  the Shares have been approved for quotation 
                     on the Nasdaq National Market, subject to official notice
                     of issuance; and

                            (xv)   such counsel (A) is of the opinion that each
                     document, if any, filed pursuant to the Exchange Act and
                     incorporated by reference in the Registration Statement and
                     the Prospectus (except for financial statements and
                     schedules and other financial and statistical data included
                     therein as to which such counsel need not express any
                     opinion) complied when so filed as to form in all material
                     respects with the Exchange Act, and the applicable rules
                     and regulations of the Commission thereunder, (B) is of the
                     opinion that the Registration Statement and Prospectus
                     (except for financial statements and schedules and other
                     financial and statistical data included therein as to which
                     such counsel need not express any opinion) comply as to
                     form in all material respects with the Securities Act and
                     the applicable rules and regulations of the Commission
                     thereunder, (C) has no reason to believe that (except for
                     financial statements and schedules and other financial and
                     statistical data as to which such counsel need not express
                     any belief) the Registration Statement and the Prospectus
                     included therein at the time the Registration Statement
                     became effective contained any untrue statement of a
                     material fact or omitted to state a material fact required
                     to be stated therein or necessary to make the statements
                     therein not misleading and (D) has no reason to believe
                     that (except for financial statements and schedules and
                     other financial and statistical data as to which such
                     counsel need not express any belief) the Prospectus
                     contains any untrue statement of a material fact or omits
                     to state a material fact necessary in order to make the
                     statements therein, in the light of the circumstances under
                     which they were made, not misleading.

                  (d) The Underwriters shall have received on the Closing Date
              an opinion of Epstein Becker & Green, P.C., counsel for the
              Selling Shareholders, dated the Option Closing Date, to the effect
              that:

                     (i) this Agreement has been duly authorized, executed and
                     delivered 
   18

                     by or on behalf of each of the Selling Shareholders;

                     (ii) the execution and delivery by each Selling Shareholder
                     of, and the performance by such Selling Shareholder of its
                     obligations under, this Agreement and the Custody Agreement
                     and Powers of Attorney of such Selling Shareholder will not
                     contravene any provision of applicable law or, to the best
                     of such counsel's knowledge, any agreement or other
                     instrument binding upon such Selling Shareholder or, to the
                     best of such counsel's knowledge, any judgment, order or
                     decree of any governmental body, agency or court having
                     jurisdiction over such Selling Shareholder, and no consent,
                     approval, authorization or order of, or qualification with,
                     any governmental body or agency is required for the
                     performance by such Selling Shareholder of its obligations
                     under this Agreement or the Custody Agreement or Power of
                     Attorney of such Selling Shareholder, except such as may be
                     required by the securities or Blue Sky laws of the various
                     states in connection with offer and sale of the Shares;

                     (iii) each of the Selling Shareholders has valid title to
                     the Shares to be sold by such Selling Shareholder and the
                     legal right and power, and all authorization and approval
                     required by law, to enter into this Agreement and the
                     Custody Agreement and Power of Attorney of such Selling
                     Shareholder and to sell, transfer and deliver the Shares to
                     be sold by such Selling Shareholder;

                     (iv) the Custody Agreement and the Power of Attorney of
                     each Selling Shareholder have been duly authorized,
                     executed and delivered by such Selling Shareholder and are
                     valid and binding agreements of such Selling Shareholder;

                     (v) delivery of the Shares to be sold by each Selling
                     Shareholder pursuant to this Agreement will pass title to
                     such Shares free and clear of any security interests,
                     claims, liens, equities and other encumbrances; and

                     (vi) such counsel (A) is of the opinion that the
                     Registration Statement and Prospectus (except for financial
                     statements and schedules and other financial and
                     statistical data included therein as to which such counsel
                     need not express any opinion) comply as to form in all
                     material respects with the Securities Act and the
                     applicable rules and regulations of the Commission
                     thereunder, (B) has no reason to believe that (except for
                     financial statements and schedules and other financial and
                     statistical data as to which such counsel need not express


   19

                     any belief) the Registration Statement and the prospectus
                     included therein at the time the Registration Statement
                     became effective contained any untrue statement of a
                     material fact or omitted to state a material fact required
                     to be stated therein or necessary to make the statements
                     therein not misleading and (C) has no reason to believe
                     that (except for financial statements and schedules and
                     other financial and statistical data as to which such
                     counsel need not express any belief) the Prospectus
                     contains any untrue statement of a material fact or omits
                     to state a material fact necessary in order to make the
                     statements therein, in the light of the circumstances under
                     which they were made, not misleading.

                  (e) The Underwriters shall have received on the Closing Date
              and the Option Closing Date, as the case may be, an opinion dated
              such date of Cooper & Dunham LLP, special patent counsel to the
              Company, to the effect that:

                            (i)  the statements in the Registration Statement 
                     and Prospectus under the captions "Risk Factors -
                     Uncertainty Regarding Our Issued Patent and Pending Patent
                     Applications" and "Business -- Patents and Proprietary
                     Technology" insofar as such matters constitute matters of
                     law or legal conclusions thereunder are accurate and
                     correct in all material respects and fairly present such
                     matters of law and legal conclusions;

                            (ii)  to such counsel's knowledge, there are no 
                     legal or governmental proceedings pending (other than the
                     Company Patent Applications) relating to the Company, the
                     claimed inventions of the patents and patent applications
                     listed on Exhibit B hereto (the "COMPANY PATENTS"), or the
                     Company Intellectual Property, and to such counsel's
                     knowledge, no such proceedings are threatened or
                     contemplated by governmental authorities or others;

                            (iii) such counsel has no knowledge of any facts
                     which would preclude the Company from having valid license
                     rights or clear title to the Company Patents, and based on
                     representations by the Company that no interests have been
                     conveyed to third parties which have not been recorded in
                     the PTO, the Company has clear record title to the Company
                     Patents free and clear of any liens or encumbrances that
                     have been recorded with the PTO;

                            (iv)  to the best of such counsel's knowledge, the
                     Company has complied with the PTO duty of candor and
                     disclosure for each of the 


   20

                     Company Patents, and such counsel has no knowledge that the
                     Company lacks or will be unable to obtain any rights or
                     licenses to use all Intellectual Property necessary to the
                     conduct of its business as now or proposed to be conducted
                     by the Company as described in the Prospectus;

                            (v)   such counsel has no knowledge of any facts
                     material to a determination of patentability regarding the
                     Company Patent Applications not called to the attention of
                     the PTO, and is unaware of any facts not called to the
                     attention of the PTO which would preclude the grant of a
                     patent for the Company Patent Applications;

                            (vi)   such counsel is not aware of any basis for a
                     finding of unenforceability of invalidity of any Company
                     Patents or Company Intellectual Property, and (except as
                     disclosed in the Prospectus) to the best of such counsel's
                     knowledge, the Company has not received any notice of
                     infringement or of conflict with rights or claims of others
                     with respect to any Intellectual Property owned or used by
                     the Company or its subsidiaries;

                            (vii)  based upon a review of the third party rights
                     made known to counsel and discussion with Company
                     scientific personnel, such counsel has no knowledge of any
                     patent rights of others which are or would be infringed by
                     specific products or processes referred to in the
                     Prospectus, including without limitation, the Beta-Cath
                     System, which infringement, singly or in the aggregate, if
                     the subject of an unfavorable decision, ruling or finding,
                     would result in any material adverse effect on the
                     condition, financial or otherwise, or in the earnings,
                     business or operations of the Company and its subsidiaries,
                     taken as a whole; and

                            (viii) such counsel (A) has no reason to believe
                     that the portions of the Registration Statement and the
                     Prospectus under the captions "Risk Factors --Uncertainty
                     Regarding Our Issued Patent, Pending Patent Applications
                     and Other Matters" and "Business -- Patents and Proprietary
                     Technology" (excluding those portions pertaining to the
                     Company's relations with Emory University and its staff
                     physicians) included therein at the time the Registration
                     Statement became effective contained any untrue statement
                     of a material fact or omitted to state a material fact
                     required to be stated therein or necessary to make the
                     statements therein not misleading and (B) has no reason to
                     believe that the portions of the Prospectus under the
                     captions "Risk Factors -- Uncertainty Regarding Our Issued
                     Patent, Pending Patent 

   21
                     Applications and Other Matters" and "Business -- Patents
                     and Proprietary Technology" (excluding those portions
                     pertaining to the Company's relations with Emory University
                     and its staff physicians) contains any untrue statement of
                     a material fact or omits to state a material fact necessary
                     in order to make the statements therein, in the light of
                     the circumstances under which they were made, not
                     misleading.

                  (f) The Underwriters shall have received on the Closing Date
              and the Option Closing Date, as the case may be, an opinion dated
              such date of ____________, special regulatory counsel to the
              Company, to the effect that:

                           (i) the statements in the Registration Statement and
                      Prospectus under the captions "Risk Factors - Early Stage
                      of Clinical Testing of Beta-Cath System; No Assurance of
                      its Safety and Efficacy," "No Assurance of Regulatory
                      Approvals" (except the portions under the subheading
                      "Approvals to Use, Handle and Distribute Radioactive
                      Materials"), and "Business - Clinical Trials," and
                      "Business --Government Regulation" (except the portions
                      pertaining to the regulation of radioactive materials)
                      (collectively, the "DEVICE REGULATORY PORTION") insofar as
                      such matters constitute matters of United States federal,
                      state or local law or legal conclusions thereunder are
                      accurate and correct in all material respects and fairly
                      present such matters of law and legal conclusions; and

                           (ii) such counsel (A) has no reason to believe that
                      the Device Regulatory Portion of the Registration
                      Statement and the Prospectus included therein at the time
                      the Registration Statement became effective contained any
                      untrue statement of a material fact or omitted to state a
                      material fact required to be stated therein or necessary
                      to make the statements therein not misleading and (B) has
                      no reason to believe that the Device Regulatory Portion of
                      the Prospectus contains any untrue statement of a material
                      fact or omits to state a material fact necessary in order
                      to make the statements therein, in the light of the
                      circumstances under which they were made, not misleading.

                  (g) The Underwriters shall have received on the Closing Date
              and the Option Closing Date, as the case may be, an opinion dated
              such date of ____________, special regulatory counsel to the
              Company, to the effect that:

                           (i) the statements in the Registration Statement and
                      Prospectus under the captions "Risk Factors - No Assurance
                      of Regulatory Approvals - Approvals to Use, Handle and
                      Distribute Radioactive 



   22

                     Materials," "Risk Factors - The Beta-Cath System Utilizes
                     Radioactive Materials," "Business - Government Regulation"
                     (only as to the portions pertaining to the regulation of
                     radioactive materials) (collectively, the "RADIOACTIVE
                     MATERIALS REGULATORY PORTION") insofar as such matters
                     constitute matters of United States federal, state or local
                     law or legal conclusions thereunder are accurate and
                     correct in all material respects and fairly present such
                     matters of law and legal conclusions; and

                            (ii) such counsel (A) has no reason to believe that
                     the Radioactive Materials Regulatory Portion of the
                     Registration Statement and the Prospectus included therein
                     at the time the Registration Statement became effective
                     contained any untrue statement of a material fact or
                     omitted to state a material fact required to be stated
                     therein or necessary to make the statements therein not
                     misleading and (B) has no reason to believe that the
                     Radioactive Materials Regulatory Portion of the Prospectus
                     contains any untrue statement of a material fact or omits
                     to state a material fact necessary in order to make the
                     statements therein, in the light of the circumstances under
                     which they were made, not misleading.

                  (h) The Underwriters shall have received on the Closing Date
              and the Option Closing Date, as the case may be, an opinion of
              Ropes & Gray, counsel for the Underwriters, dated such date,
              covering the matters referred to in Sections 6(c)(vi), 6(c)(vii),
              6(c)(ix) (but only as to the statements in the Prospectus under
              "Underwriters") and 6(c)(xv) (but only as to clauses (B), (C) and
              (D)) above.

                  With respect to Section 6(c)(xv) above, Epstein Becker &
              Green, P.C. may state that their opinion and belief are based upon
              their participation in the preparation of the Registration
              Statement and Prospectus and any amendments or supplements thereto
              and documents incorporated by reference and review and discussion
              of the contents thereof, but are without independent check or
              verification except as specified. With respect to Section
              5(e)(viii) above, Cooper & Dunham LLP may state that their opinion
              and belief are based upon their participation in the preparation
              of the relevant portions of the Registration Statement and
              Prospectus and any amendments or supplements thereto and documents
              incorporated by reference and review and discussion of the
              contents thereof, but are without independent check or
              verification except as specified. With respect to clauses (B), (C)
              and (D) of Section 6(c)(xv) above, Ropes & Gray may state that
              their opinion and belief are based upon their participation in the
              preparation of the Registration Statement and Prospectus and any
              amendments or supplements thereto (other than the 


   23

              documents incorporated by reference) and upon review and
              discussion of the contents thereof (including documents
              incorporated by reference), but are without independent check or
              verification except as specified.

                  With respect to Section 6(c)(ii) and 6(c)(v) above, Epstein
              Becker & Green, P.C. may rely upon an opinion or opinions of
              foreign counsel to the Company; provided that (A) each such
              foreign counsel is satisfactory to your counsel, (B) a copy of
              each opinion so relied upon is delivered to you and is in form and
              substance satisfactory to your counsel and (C) Epstein Becker &
              Green, P.C. shall state in their opinion that they are justified
              in relying on each such other opinion or opinions.

                  The opinions of Epstein Becker & Green, P.C. (with respect to
              the Company), Epstein Becker & Green, P.C. (with respect to the
              Selling Shareholders), Cooper & Dunham LLP, __________ and
              ___________ described, respectively, in Sections 6(c), 6(d), 6(e),
              6(f) and 6(g) above (and any opinions of foreign counsel to the
              Company referred to in the immediately preceding paragraph) shall
              be rendered to the Underwriters at the request of the Company or
              one or both of the Selling Shareholders, as the case may be, and
              shall so state therein.

                  (i) The Underwriters shall have received, on each of the date
              hereof, the Closing Date and the Option Closing Date, a letter
              dated such date, in form and substance satisfactory to the
              Underwriters, from Ernst & Young, LLP, independent public
              accountants, containing statements and information of the type
              ordinarily included in accountants' "comfort letters" to
              underwriters with respect to the financial statements and certain
              financial information contained in or incorporated by reference
              into the Registration Statement and the Prospectus; provided that
              the letter delivered on the Closing Date shall use a "cut-off
              date" not earlier than the date hereof.

                  (j) The "lock-up" agreements, each substantially in the form
              of Exhibit C hereto, between you and certain shareholders,
              officers and directors of the Company relating to sales and
              certain other dispositions of shares of Common Stock or certain
              other securities, delivered to you on or before the date hereof,
              shall be in full force and effect on the Closing Date and the
              Option Closing Date, as the case may be.

                  (k) The Underwriters shall have received on the Option Closing
              Date a certificate dated the Option Closing Date and signed by
              each of the Selling Shareholders to the effect that the
              representations and warranties of such Selling Shareholder
              contained in this Agreement are true and correct as of the Option
              Closing Date and that such Selling Shareholders has complied with
              all 


   24

              of the agreements and satisfied all of the conditions to be
              performed or satisfied on the part of such Selling Shareholder
              hereunder on or before the Option Closing Date.

                  The several obligations of the Underwriters to purchase
              Additional Shares hereunder are subject to the delivery to you on
              the Option Closing Date of such other documents as you may
              reasonably request with respect to the good standing of the
              Company, the due authorization and issuance of the Additional
              Shares and other matters related to the issuance of the Additional
              Shares.

         7. Covenants of the Company. In further consideration of the agreements
of the Underwriters herein contained, the Company covenants with each
Underwriter as follows:

                     (a) To furnish you, without charge, three signed copies of
              the Registration Statement (including exhibits thereto and
              documents incorporated by reference) and to each other Underwriter
              a conformed copy of the Registration Statement (without exhibits
              thereto but including documents incorporated by reference) and to
              furnish to you in New York City, without charge, prior to 10:00
              a.m. New York City time on the business day next succeeding the
              date of this Agreement and during the period mentioned in Section
              7(c) below, as many copies of the Prospectus, any documents
              incorporated by reference, and any supplements and amendments
              thereto as you may reasonably request. The terms "supplement" and
              "amendment" or "amend" as used in this Agreement shall include all
              documents subsequently filed by the Company with the Commission
              pursuant to the Exchange Act that are deemed to be incorporated by
              reference in the Prospectus.

                     (b) Before amending or supplementing the Registration
              Statement or the Prospectus, to furnish to you a copy of each such
              proposed amendment or supplement and not to file any such proposed
              amendment or supplement to which you reasonably object, and to
              file with the Commission within the applicable period specified in
              Rule 424(b) under the Securities Act any prospectus required to be
              filed pursuant to such Rule.

                     (c) If, during such period after the first date of the
              public offering of the Shares as in the opinion of counsel for the
              Underwriters the Prospectus is required by law to be delivered in
              connection with sales by an Underwriter or dealer, any event shall
              occur or condition exist as a result of which it is necessary to
              amend or supplement the Prospectus in order to make the statements
              therein, in the light of the circumstances when the Prospectus is
              delivered to a purchaser, not misleading, or if, in the opinion of
              counsel for the Underwriters, it is necessary to amend or
              supplement the Prospectus to comply with applicable law, forthwith
              to prepare, file with the Commission 



   25

              and furnish, at its own expense, to the Underwriters and to the
              dealers (whose names and addresses you will furnish to the
              Company) to which Shares may have been sold by you on behalf of
              the Underwriters and to any other dealers upon request, either
              amendments or supplements to the Prospectus so that the statements
              in the Prospectus as so amended or supplemented will not, in the
              light of the circumstances when the Prospectus is delivered to a
              purchaser, be misleading or so that the Prospectus, as amended or
              supplemented, will comply with law.

                  (d) To endeavor to qualify the Shares for offer and sale under
              the securities or Blue Sky laws of such jurisdictions as you shall
              reasonably request.

                  (e) To make generally available to the Company's security
              holders and to you as soon as practicable an earning statement
              covering the twelve-month period ending ________, ____ that
              satisfies the provisions of Section 11(a) of the Securities Act
              and the rules and regulations of the Commission thereunder.

         8. Expenses. Whether or not the transactions contemplated in this
Agreement are consummated or this Agreement is terminated, the Company agrees to
pay or cause to be paid all expenses incident to the performance of the Sellers'
obligations under this Agreement, including: (i) the fees, disbursements and
expenses of the Company's counsel, the Company's accountants and counsel for the
Selling Shareholders in connection with the registration and delivery of the
Shares under the Securities Act and all other fees or expenses in connection
with the preparation and filing of the Registration Statement, any preliminary
prospectus, the Prospectus and amendments and supplements to any of the
foregoing, including all printing costs associated therewith, and the mailing
and delivering of copies thereof to the Underwriters and dealers, in the
quantities hereinabove specified, (ii) all costs and expenses related to the
transfer and delivery of the Shares to the Underwriters, including any transfer
or other taxes payable thereon, (iii) the cost of printing or producing any Blue
Sky or Legal Investment memorandum in connection with the offer and sale of the
Shares under state securities laws and all expenses in connection with the
qualification of the Shares for offer and sale under state securities laws as
provided in Section 7(d) hereof, including filing fees and the reasonable fees
and disbursements of counsel for the Underwriters in connection with such
qualification and in connection with the Blue Sky or Legal Investment
memorandum, (iv) all filing fees and the reasonable fees and disbursements of
counsel to the Underwriters incurred in connection with the review and
qualification of the offering of the Shares by the National Association of
Securities Dealers, Inc., (v) all costs and expenses incident to listing the
Shares on the Nasdaq National Market, (vi) the cost of printing certificates
representing the Shares, (vii) the costs and charges of any transfer agent,
registrar or depositary, (viii) the costs and expenses of the Company relating
to investor presentations on any "road show" undertaken in connection with the
marketing of the offering of the 


   26

Shares, including, without limitation, expenses associated with the production
of road show slides and graphics, fees and expenses of any consultants engaged
in connection with the road show presentations with the prior approval of the
Company, travel and lodging expenses of the representatives and officers of the
Company and any such consultants, and the cost of any aircraft chartered in
connection with the road show, and (ix) all other costs and expenses incident to
the performance of the obligations of the Company hereunder for which provision
is not otherwise made in this Section. It is understood, however, that except as
provided in this Section, Section 9 entitled "Indemnity and Contribution", and
the last paragraph of Section 11 below, the Underwriters will pay all of their
costs and expenses, including fees and disbursements of their counsel, stock
transfer taxes payable on resale of any of the Shares by them and any
advertising expenses connected with any offers they may make.

         9.  Indemnity and Contribution.

                  (a) The Company agrees to indemnify and hold harmless each
              Underwriter and each person, if any, who controls any Underwriter
              within the meaning of either Section 15 of the Securities Act or
              Section 20 of the Exchange Act, from and against any and all
              losses, claims, damages and liabilities (including, without
              limitation, any legal or other expenses reasonably incurred in
              connection with defending or investigating any such action or
              claim) caused by any untrue statement or alleged untrue statement
              of a material fact contained in the Registration Statement or any
              amendment thereof, any preliminary prospectus or the Prospectus
              (as amended or supplemented if the Company shall have furnished
              any amendments or supplements thereto), or caused by any omission
              or alleged omission to state therein a material fact required to
              be stated therein or necessary to make the statements therein not
              misleading, except insofar as such losses, claims, damages or
              liabilities are caused by any such untrue statement or omission or
              alleged untrue statement or omission based upon information
              relating to any Underwriter furnished to the Company in writing by
              such Underwriter through you expressly for use therein; provided,
              however, that the foregoing indemnity agreement with respect to
              any preliminary prospectus shall not inure to the benefit of any
              Underwriter from whom the person asserting any such losses,
              claims, damages or liabilities purchased Shares, or any person
              controlling such Underwriter, if a copy of the Prospectus (as then
              amended or supplemented if the Company shall have furnished any
              amendments or supplements thereto) was not sent or given by or on
              behalf of such Underwriter to such person, if required by law so
              to have been delivered, at or prior to the written confirmation of
              the sale of the Shares to such person, and if the Prospectus (as
              so amended or supplemented) would have cured the defect giving
              rise to such losses, claims, damages or liabilities, unless such
              failure is the result of noncompliance by the Company with Section
              7(a)
   27

              hereof.

                  (b) Each Selling Shareholder agrees, severally and not
              jointly, to indemnify and hold harmless each Underwriter and each
              person, if any, who controls any Underwriter within the meaning of
              either Section 15 of the Securities Act or Section 20 of the
              Exchange Act, and the Company, its directors, its officers who
              sign the Registration Statement and each person, if any, who
              controls the Company within the meaning of either Section 15 of
              the Securities Act or Section 20 of the Exchange Act, from and
              against any and all losses, claims, damages and liabilities
              (including, without limitation, any legal or other expenses
              reasonably incurred in connection with defending or investigating
              any such action or claim) caused by any untrue statement or
              alleged untrue statement of a material fact contained in the
              Registration Statement or any amendment thereof, any preliminary
              prospectus or the Prospectus (as amended or supplemented if the
              Company shall have furnished any amendments or supplements
              thereto), or caused by any omission or alleged omission to state
              therein a material fact required to be stated therein or necessary
              to make the statements therein not misleading, but only with
              reference to information relating to such Selling Shareholder
              furnished in writing by or on behalf of such Selling Shareholder
              expressly for use in the Registration Statement, any preliminary
              prospectus, the Prospectus or any amendments or supplements
              thereto; provided, however, that the foregoing indemnity agreement
              with respect to any preliminary prospectus shall not inure to the
              benefit of any Underwriter from whom the person asserting any such
              losses, claims, damages or liabilities purchased Shares, or any
              person controlling such Underwriter, if a copy of the Prospectus
              (as then amended or supplemented if the Company shall have
              furnished any amendments or supplements thereto) was not sent or
              given by or on behalf of such Underwriter to such person, if
              required by law so to have been delivered, at or prior to the
              written confirmation of the sale of the Shares to such person, and
              if the Prospectus (as so amended or supplemented) would have cured
              the defect giving rise to such losses, claims, damages or
              liabilities, unless such failure is the result of noncompliance by
              the Company with Section 7(a) hereof. The liability of each
              Selling Shareholder under this Agreement shall be limited to an
              amount equal to the net proceeds received by the Selling
              Shareholder from the offering of the Additional Shares sold by
              such Selling Shareholder, except with respect to (i) any breaches
              of the representations and warranties set forth in Sections 2(a),
              2(b), 2(c), 2(d), 2(e) and 2(f) hereof, (ii) intentional
              misrepresentation or (iii) fraud.

                  (c) Each Underwriter agrees, severally and not jointly, to
              indemnify and hold harmless the Company, the Selling Shareholders,
              the directors of the Company, the officers of the Company who sign
              the Registration Statement 

   28

              and each person, if any, who controls the Company or any Selling
              Shareholder within the meaning of either Section 15 of the
              Securities Act or Section 20 of the Exchange Act, from and against
              any and all losses, claims, damages and liabilities (including,
              without limitation, any legal or other expenses reasonably
              incurred in connection with defending or investigating any such
              action or claim) caused by any untrue statement or alleged untrue
              statement of a material fact contained in the Registration
              Statement or any amendment thereof, any preliminary prospectus or
              the Prospectus (as amended or supplemented if the Company shall
              have furnished any amendments or supplements thereto), or caused
              by any omission or alleged omission to state therein a material
              fact required to be stated therein or necessary to make the
              statements therein not misleading, but only with reference to
              information relating to such Underwriter furnished to the Company
              in writing by such Underwriter through you expressly for use in
              the Registration Statement, any preliminary prospectus, the
              Prospectus or any amendments or supplements thereto.

                  (d) In case any proceeding (including any governmental
              investigation) shall be instituted involving any person in respect
              of which indemnity may be sought pursuant to Section 9(a), 9(b),
              or 9(c) such person (the "INDEMNIFIED PARTY") shall promptly
              notify the person against whom such indemnity may be sought (the
              "INDEMNIFYING PARTY") in writing and the indemnifying party, upon
              request of the indemnified party, shall retain counsel reasonably
              satisfactory to the indemnified party to represent the indemnified
              party and any others the indemnifying party may designate in such
              proceeding and shall pay the fees and disbursements of such
              counsel related to such proceeding. In any such proceeding, any
              indemnified party shall have the right to retain its own counsel,
              but the fees and expenses of such counsel shall be at the expense
              of such indemnified party unless (i) the indemnifying party and
              the indemnified party shall have mutually agreed to the retention
              of such counsel or (ii) the named parties to any such proceeding
              (including any impleaded parties) include both the indemnifying
              party and the indemnified party and representation of both parties
              by the same counsel would be inappropriate due to actual or
              potential differing interests between them. It is understood that
              the indemnifying party shall not, in respect of the legal expenses
              of any indemnified party in connection with any proceeding or
              related proceedings in the same jurisdiction, be liable for (i)
              the fees and expenses of more than one separate firm (in addition
              to any local counsel) for all Underwriters and all persons, if
              any, who control any Underwriter within the meaning of either
              Section 15 of the Securities Act or Section 20 of the Exchange
              Act, (ii) the fees and expenses of more than one separate firm (in
              addition to any local counsel) for the Company, its directors, its
              officers who sign the Registration Statement and each person, if
              any, who controls the Company within the meaning of either such
              Section and (iii) the fees and expenses of more than one separate
              firm (in addition to any local counsel) for all Selling
              Shareholders and all persons, if any, who control any Selling
              Shareholder within the 



   29

              meaning of either such Section, and that all such fees and
              expenses shall be reimbursed as they are incurred. In the case of
              any such separate firm for the Underwriters and such control
              persons of any Underwriters, such firm shall be designated in
              writing by Morgan Stanley & Co. Incorporated. In the case of any
              such separate firm for the Company, and such directors, officers
              and control persons of the Company, such firm shall be designated
              in writing by the Company. In the case of any such separate firm
              for the Selling Shareholders and such control persons of any
              Selling Shareholders, such firm shall be designated in writing by
              the persons named as attorneys-in-fact for the Selling
              Shareholders under the Powers of Attorney. The indemnifying party
              shall not be liable for any settlement of any proceeding effected
              without its written consent, but if settled with such consent or
              if there be a final judgment for the plaintiff, the indemnifying
              party agrees to indemnify the indemnified party from and against
              any loss or liability by reason of such settlement or judgment.
              Notwithstanding the foregoing sentence, if at any time an
              indemnified party shall have requested an indemnifying party to
              reimburse the indemnified party for fees and expenses of counsel
              as contemplated by the second and third sentences of this
              paragraph, the indemnifying party agrees that it shall be liable
              for any settlement of any proceeding effected without its written
              consent if (i) such settlement is entered into more than 30 days
              after receipt by such indemnifying party of the aforesaid request
              and (ii) such indemnifying party shall not have reimbursed the
              indemnified party in accordance with such request prior to the
              date of such settlement. No indemnifying party shall, without the
              prior written consent of the indemnified party, effect any
              settlement of any pending or threatened proceeding in respect of
              which any indemnified party is or could have been a party and
              indemnity could have been sought hereunder by such indemnified
              party, unless such settlement includes an unconditional release of
              such indemnified party from all liability on claims that are the
              subject matter of such proceeding.

                  (e) To the extent the indemnification provided for in Section
              9(a), 9(b) or 9(c) is unavailable to an indemnified party or
              insufficient in respect of any losses, claims, damages or
              liabilities referred to therein, then each indemnifying party
              under such paragraph, in lieu of indemnifying such indemnified
              party thereunder, shall contribute to the amount paid or payable
              by such indemnified party as a result of such losses, claims,
              damages or liabilities (i) in such proportion as is appropriate to
              reflect the relative benefits received by the indemnifying party
              or parties on the one hand and the indemnified party or parties on
              the other hand from the offering of the Shares 


   30

              or (ii) if the allocation provided by clause (i) of this sentence
              is not permitted by applicable law, in such proportion as is
              appropriate to reflect not only the relative benefits referred to
              in clause (i) of this sentence but also the relative fault of the
              indemnifying party or parties on the one hand and of the
              indemnified party or parties on the other hand in connection with
              the statements or omissions that resulted in such losses, claims,
              damages or liabilities, as well as any other relevant equitable
              considerations. The relative benefits received by the Sellers on
              the one hand and the Underwriters on the other hand in connection
              with the offering of the Shares shall be deemed to be in the same
              respective proportions as the net proceeds from the offering of
              the Shares (before deducting expenses) received by each Seller and
              the total underwriting discounts and commissions received by the
              Underwriters, in each case as set forth in the table on the cover
              of the Prospectus, bear to the aggregate Public Offering Price of
              the Shares. The relative fault of the Sellers on the one hand and
              the Underwriters on the other hand shall be determined by
              reference to, among other things, whether the untrue or alleged
              untrue statement of a material fact or the omission or alleged
              omission to state a material fact relates to information supplied
              by the Sellers or by the Underwriters and the parties' relative
              intent, knowledge, access to information and opportunity to
              correct or prevent such statement or omission. The Underwriters'
              respective obligations to contribute pursuant to this Section 9
              are several in proportion to the respective number of Shares they
              have purchased hereunder, and not joint.

                  (f) The Sellers and the Underwriters agree that it would not
              be just or equitable if contribution pursuant to this Section 9
              were determined by pro rata allocation (even if the Underwriters
              were treated as one entity for such purpose) or by any other
              method of allocation that does not take account of the equitable
              considerations referred to in Section 9(e). The amount paid or
              payable by an indemnified party as a result of the losses, claims,
              damages and liabilities referred to in the immediately preceding
              paragraph shall be deemed to include, subject to the limitations
              set forth above, any legal or other expenses reasonably incurred
              by such indemnified party in connection with investigating or
              defending any such action or claim. Notwithstanding the provisions
              of this Section 9, no Underwriter shall be required to contribute
              any amount in excess of the amount by which the total price at
              which the Shares underwritten by it and distributed to the public
              were offered to the public exceeds the amount of any damages that
              such Underwriter has otherwise been required to pay by reason of
              such untrue or alleged untrue statement or omission or alleged
              omission, and each Selling Shareholder shall not be required to
              contribute any amount in excess of the net proceeds received by
              such Selling Shareholder form the offering of the Additional
              Shares sold by such Selling Stockholder, except with respect to
              (i) any breach 


   31

              of the representations and warranties in Sections 2(a), 2(b),
              2(c), 2(d), 2(e) and 2(f) hereof, (ii) intentional
              misrepresentation or (iii) fraud. No person guilty of fraudulent
              misrepresentation (within the meaning of Section 11(f) of the
              Securities Act) shall be entitled to contribution from any person
              who was not guilty of such fraudulent misrepresentation. The
              remedies provided for in this Section 9 are not exclusive and
              shall not limit any rights or remedies which may otherwise be
              available to any indemnified party at law or in equity.

                  (g) The indemnity and contribution provisions contained in
              this Section 9 and the representations, warranties and other
              statements of the Company and the Selling Shareholders contained
              in this Agreement shall remain operative and in full force and
              effect regardless of (i) any termination of this Agreement, (ii)
              any investigation made by or on behalf of any Underwriter or any
              person controlling any Underwriter, any Selling Shareholder or any
              person controlling any Selling Shareholder, or the Company, its
              officers or directors or any person controlling the Company and
              (iii) acceptance of and payment for any of the Shares.

         10. Termination. This Agreement shall be subject to termination by
notice given by you to the Company, if (a) after the execution and delivery of
this Agreement and prior to the Closing Date (i) trading generally shall have
been suspended or materially limited on or by, as the case may be, any of the
New York Stock Exchange, the American Stock Exchange, the National Association
of Securities Dealers, Inc., the Chicago Board of Options Exchange, the Chicago
Mercantile Exchange or the Chicago Board of Trade, (ii) trading of any
securities of the Company shall have been suspended on any exchange or in any
over-the-counter market, (iii) a general moratorium on commercial banking
activities in New York shall have been declared by either Federal or New York
State authorities or (iv) there shall have occurred any outbreak or escalation
of hostilities or any change in financial markets or any calamity or crisis
that, in your judgment, is material and adverse and (b) in the case of any of
the events specified in clauses 10(a)(i) through 10(a)(iv), such event, singly
or together with any other such event, makes it, in your judgment, impracticable
to market the Shares on the terms and in the manner contemplated in the
Prospectus.

         11. Effectiveness; Defaulting Underwriters. This Agreement shall become
effective upon the execution and delivery hereof by the parties hereto.

         If, on the Closing Date or the Option Closing Date, as the case may be,
any one or more of the Underwriters shall fail or refuse to purchase Shares that
it has or they have agreed to purchase hereunder on such date, and the aggregate
number of Shares which such defaulting Underwriter or Underwriters agreed but
failed or refused to purchase is not more than one-tenth of the aggregate number
of the Shares to be purchased on such date, the other Underwriters shall be
obligated severally in the proportions that the 


   32

number of Firm Shares set forth opposite their respective names in Schedule II
bears to the aggregate number of Firm Shares set forth opposite the names of all
such non-defaulting Underwriters, or in such other proportions as you may
specify, to purchase the Shares which such defaulting Underwriter or
Underwriters agreed but failed or refused to purchase on such date; provided
that in no event shall the number of Shares that any Underwriter has agreed to
purchase pursuant to this Agreement be increased pursuant to this Section 11 by
an amount in excess of one-ninth of such number of Shares without the written
consent of such Underwriter. If, on the Closing Date, any Underwriter or
Underwriters shall fail or refuse to purchase Firm Shares and the aggregate
number of Firm Shares with respect to which such default occurs is more than
one-tenth of the aggregate number of Firm Shares to be purchased, and
arrangements satisfactory to you, the Company and the Selling Shareholders for
the purchase of such Firm Shares are not made within 36 hours after such
default, this Agreement shall terminate without liability on the part of any
non-defaulting Underwriter, the Company or the Selling Shareholders. In any such
case either you or the Company shall have the right to postpone the Closing
Date, but in no event for longer than seven days, in order that the required
changes, if any, in the Registration Statement and in the Prospectus or in any
other documents or arrangements may be effected. If, on the Option Closing Date,
any Underwriter or Underwriters shall fail or refuse to purchase Additional
Shares and the aggregate number of Additional Shares with respect to which such
default occurs is more than one-tenth of the aggregate number of Additional
Shares to be purchased, the non-defaulting Underwriters shall have the option to
(i) terminate their obligation hereunder to purchase Additional Shares or (ii)
purchase not less than the number of Additional Shares that such non-defaulting
Underwriters would have been obligated to purchase in the absence of such
default. Any action taken under this paragraph shall not relieve any defaulting
Underwriter from liability in respect of any default of such Underwriter under
this Agreement.

         If this Agreement shall be terminated by the Underwriters, or any of
them, because of any failure or refusal on the part of any Seller to comply with
the terms or to fulfill any of the conditions of this Agreement, or if for any
reason any Seller shall be unable to perform its obligations under this
Agreement, the Company will reimburse the Underwriters or such Underwriters as
have so terminated this Agreement with respect to themselves, severally, for all
out-of-pocket expenses (including the fees and disbursements of their counsel)
reasonably incurred by such Underwriters in connection with this Agreement or
the offering contemplated hereunder.

         12. Counterparts. This Agreement may be signed in two or more
counterparts, each of which shall be an original, with the same effect as if the
signatures thereto and hereto were upon the same instrument.

         13. Applicable Law. This Agreement shall be governed by and construed
in accordance with the internal laws of the State of New York.


   33

         14. Headings. The headings of the sections of this Agreement have been
inserted for convenience of reference only and shall not be deemed a part of
this Agreement.


   34


                               Very truly yours,

                               NOVOSTE CORPORATION



                               By:
                                  -----------------------------------------
                                        Name:
                                        Title:

                               The Selling Shareholders named in
                               Schedule II hereto, acting
                               severally:


                               By:
                                  ------------------------------------------
                                        Thomas D. Weldon


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

                                        Charles E. Larsen


Accepted as of the date hereof

Morgan Stanley & Co. Incorporated
Piper Jaffray Inc.
Hambrecht & Quist LLC

Acting severally on behalf 
  of themselves and the 
  several Underwriters named 
  in Schedule I hereto.

By: Morgan Stanley & Co. Incorporated


         By:
            --------------------------
                  Name:
                  Title:


   35


   
    
                                   SCHEDULE I




                                                       FIRM SHARES
            UNDERWRITER                              TO BE PURCHASED
            -----------                              ---------------
                                                  
Morgan Stanley & Co. Incorporated

Piper Jaffray Inc.

Hambrecht & Quist LLC

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

Total.................................................================



   36

   
    

                                   SCHEDULE II





                                                           NUMBER OF
SELLING SHAREHOLDER                                        ADDITIONAL SHARES
- -------------------                                        -----------------
                                                        
Thomas D. Weldon

Charles E. Larsen


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

       Total...........................................     ==================



   37


EXHIBIT A



                           COMPANY PATENT APPLICATIONS


   38





   
    


EXHIBIT B



                                 COMPANY PATENTS


   39



                                                                       EXHIBIT C


                            [FORM OF LOCK-UP LETTER]



                                                             _____________, 1999



Morgan Stanley & Co. Incorporated
Piper Jaffray Inc.
Hambrecht & Quist LLC
c/o Morgan Stanley & Co. Incorporated
1585 Broadway
 New York, New York  10036

Dear Sirs and Mesdames:

         The undersigned understands that Morgan Stanley & Co. Incorporated
("MORGAN STANLEY") proposes to enter into an Underwriting Agreement (the
"UNDERWRITING AGREEMENT") with Novoste Corporation, a Florida corporation (the
"COMPANY"), providing for the public offering (the "PUBLIC OFFERING") by the
several Underwriters, including Morgan Stanley (the "UNDERWRITERS"), of up to
_______ shares (the "Shares") of the Common Stock, $.01 par value of the Company
(the "COMMON STOCK").

         To induce the Underwriters that may participate in the Public Offering
to continue their efforts in connection with the Public Offering, the
undersigned hereby agrees that, without the prior written consent of Morgan
Stanley on behalf of the Underwriters, it will not, during the period commencing
on the date hereof and ending 90 days after the date of the final prospectus
relating to the Public Offering (the "PROSPECTUS"), (1) offer, pledge, sell,
contract to sell, sell any option or contract to purchase, purchase any option
or contract to sell, grant any option, right or warrant to purchase, lend, or
otherwise transfer or dispose of, directly or indirectly, any shares of Common
Stock or any securities convertible into or exercisable or exchangeable for
Common Stock or (2) enter into any swap or other arrangement that transfers to
another, in whole or in part, any of the economic consequences of ownership of
the Common Stock, whether any such transaction described in clause (1) or (2)
above is to be settled by delivery of Common Stock or such other securities, in
cash or otherwise. The foregoing sentence shall not apply to (a) the sale of any
Shares to the Underwriters pursuant to the Underwriting Agreement or (b)
transactions relating to shares of Common Stock or other securities acquired in
open market transactions after the completion of the Public Offering. In



   40

                                                                               2


addition, the undersigned agrees that, without the prior written consent of
Morgan Stanley on behalf of the Underwriters, it will not, during the period
commencing on the date hereof and ending 90 days after the date of the
Prospectus, make any demand for or exercise any right with respect to, the
registration of any shares of Common Stock or any security convertible into or
exercisable or exchangeable for Common Stock.

         Whether or not the Public Offering actually occurs depends on a number
of factors, including market conditions. Any Public Offering will only be made
pursuant to an Underwriting Agreement, the terms of which are subject to
negotiation between the Company and the Underwriters.

                                          Very truly yours,


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

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