Document:

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          Confidential Materials omitted and filed separately with the
         Securities and Exchange Commission. Asterisks denote omissions.
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                                                                    Exhibit 10.2

                                 AMENDMENT NO. 1
                                       TO
                                ROYALTY AGREEMENT

      This Amendment No. 1 (this "Amendment"), dated as of November 5, 2001, to
the Royalty Agreement, dated as of October 19, 2001, as amended by letter
agreement also dated October 19, 2001 (the "Royalty Agreement"), is by and
between NMT Medical, Inc., a Delaware corporation ("NMT"), and C.R. Bard, Inc.,
a New Jersey corporation ("Bard").

      WHEREAS, NMT and Bard have heretofore executed and entered into the
Royalty Agreement; and

      WHEREAS, pursuant to Section 4.1(a) of the Royalty Agreement, NMT and Bard
may amend, modify or supplement the Royalty Agreement only by a written
instrument executed by each of the parties; and

      WHEREAS, NMT and Bard desire to further amend the Royalty Agreement on the
terms and conditions set forth in this Amendment.

      NOW, THEREFORE, the parties hereto agree as follows:

      1. Amendment. Section 1.4 of the Royalty Agreement is hereby deleted and
the following new Section 1.4 inserted in lieu thereof:

            "1.4 Net Sales Defined. For purposes of this Agreement, "Net Sales"
      with respect to a Product shall mean, for any fiscal quarter, the gross
      invoiced sales of such Product by Bard or any Affiliate of Bard to all
      non-affiliated third parties, less the following offsets and deductions:
      (i) sales, use or value-added taxes, to the extent included in the gross
      invoiced sales; and (ii) freight and handling charges, to the extent
      included in the gross invoiced sales; and (iii) relevant customary cash,
      trade and quantity discounts and rebates actually granted and given by
      Bard or an Affiliate to customers, including but not limited to
      administrative fees paid to any group purchasing organization of which the
      customer is a member; and (iv) allowances, credits and payments for
      returned Products. In the event the Product is sold in kit or in
      combination with any item which is not covered by the Intellectual
      Property Rights ("Kit"), the Net Sales of such Product shall be determined
      for each quarter by application of the following formula:

[**]

o     "Average Retail Price" means (a) with respect to each component in a Kit
      that is not a Product, the average retail sales price to hospitals of such
      component during such quarter, and (b) with respect to each Product in a
      Kit, Bard's or its Affiliate's Average Sale Price for such Product, as
      sold separately.

o     "Average Sale Price," for either a Kit or a Product in a Kit, shall be
      calculated by dividing (A) Bard's or its Affiliate's gross invoiced
      selling price during such fiscal quarter for all such
<PAGE>

      Kits or separately-sold Products, as the case may be, less applicable
      deductions and offsets set forth above, divided by (B) the total number of
      such Kits or separately-sold Products, as the case may be, sold by Bard or
      its Affiliate during such fiscal quarter."

      2. Full Force and Effect. Except as expressly amended hereby, the Royalty
Agreement shall continue in full force and effect and is in all respects
ratified and confirmed.

      3. Governing Law. This Amendment shall be governed by, and construed and
enforced in accordance with, the substantive laws of the Commonwealth of
Massachusetts, without giving effect to its conflicts of laws rules.

      4. Counterparts. This Amendment may be executed in any number of
counterparts, each of such counterparts shall for all purposes be deemed an
original and all such counterparts shall together constitute but one and the
same instrument.

      IN WITNESS WHEREOF, the parties have caused this Amendment No. 1 to
Royalty Agreement to be executed in counterparts as of the date first written
above.

NMT MEDICAL, INC.                    C.R. BARD, INC.

By:  John E. Ahern                   By:  Robert Mellen
  -------------------------------       ----------------------------------------

Its: President & Chief Executive     Its: President, Bard Peripheral
     Officer                         Technologies, a division of C.R. Bard, Inc.
   ------------------------------    -------------------------------------------

                                        2<PAGE>

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          Confidential Materials omitted and filed separately with the
         Securities and Exchange Commission. Asterisks denote omissions.
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                                                                    Exhibit 10.3

                      TRANSITIONAL MANUFACTURING AGREEMENT

      This Transitional Manufacturing Agreement (this "Agreement") made this 5th
day of November, 2001 (the "Effective Date"), by and between NMT Medical, Inc.
("NMT"), a Delaware corporation, and C.R. Bard, Inc., a New Jersey corporation
("Bard").

      WHEREAS, NMT and Bard have entered into an Asset Purchase Agreement dated
October 19, 2001 (the "Purchase Agreement") pursuant to which NMT has agreed to
sell to Bard, and Bard has agreed to purchase from NMT, various Assets (such
term, as well as other capitalized terms used but not defined herein, shall have
the meanings defined in the Purchase Agreement), consisting of NMT's vena cava
filter Product Line; and

      WHEREAS, Bard wishes to engage NMT to manufacture the Simon Nitinol Filter
for a transitional period following the Closing of the transactions contemplated
by the Purchase Agreement; and

      WHEREAS, Bard further wishes to engage NMT to manufacture a limited supply
of Recovery Filters and Recovery Cones;

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

      1. Definitions.

            1.1. Certain Definitions. As used in this Agreement, the following
terms shall have the following meanings:

                  (a) "FDA" shall mean the United States Food and Drug
      Administration.

                  (b) "Person" shall mean an individual, corporation,
      partnership, limited partnership, limited liability company,
      unincorporated association, trust, joint venture or other organization or
      entity, including a government, political subdivision, agency or
      instrumentality of a government.

                  (c) "Products" shall mean the SNF, the RNF and the RC.
      References herein to Products shall also be deemed references to any parts
      or components thereof where the context permits.

                  (d) "Product Specification" shall mean the written description
      of a Product which NMT will manufacture for Bard hereunder, including a
      description of its technical and performance specifications, together with
      all related plans and drawings. NMT has transferred and sold to Bard the
      Product Specifications for each of the Products pursuant to the Purchase
      Agreement.

                                        1
<PAGE>

                  (e) "Purchase Orders" shall mean orders transmitted by Bard
      (in written or electronic form), conforming to the requirements of this
      Agreement, and authorizing and directing NMT to manufacture and deliver
      specified Products on specified delivery dates.

                  (f) "QSR/GMP" shall mean Quality Systems Regulations and Good
      Manufacturing Practices for medical devices, as promulgated by the FDA.

                  (g) "RC" or an "RC Unit" shall mean the Recovery Cone.

                  (h) "RNF" or an "RNF Unit" shall mean the Recovery Nitinol
      Filter, including the delivery system.

                  (i) "SNF" or an "SNF Unit" shall mean the Simon Nitinol
      Filter, including the delivery system.

            1.2. Additional Definitions. Certain additional capitalized terms
are defined below in the body of this Agreement.

      2. Manufacture, Sale and Purchase of Products.

            2.1. SNF Units. Commencing on the date of the closing of the
transactions contemplated by the Purchase Agreement (the "Commencement Date")
and continuing until the earlier of (a) the date on which Bard accepts the last
shipment of SNF Units manufactured by NMT and shipped to Bard pursuant to Bard's
final Purchase Order submitted to NMT under Section 4.2 hereof and (b) December
31, 2002 (the "Transition Date"), and subject to the production capacity
limitations set forth in Section 3.1 hereof, (i) NMT shall manufacture, in
strict accordance with the SNF Product Specifications, and shall sell to Bard
all SNF Units which Bard shall order from time to time by delivery to NMT of
Purchase Orders, and (ii) Bard shall purchase all such ordered SNF Units which
NMT shall so manufacture upon delivery of such SNF Units to Bard in accordance
with the applicable Purchase Order and this Agreement. NMT's firm price to Bard
for each SNF Unit is set forth in Section 3.2 hereto.

            2.2. RNF and RC Units. NMT shall also manufacture [**] RNF Units and
RC Units in strict accordance with the RNF and RC Product Specifications, and
shall deliver such Units to Bard within 90 days after the Commencement Date,
without any additional payment or compensation on the part of Bard.

            2.3. Manufacturing Standards and Procedures. NMT shall adopt quality
assurance procedures and perform periodic quality control tests adequate to
ensure that all Products manufactured hereunder conform to QSR/GMP and the
applicable Product Specifications (collectively the "QA Procedures"). At the
request of Bard, NMT shall promptly submit to Bard in writing a description of
its QA Procedures and shall adopt such additional QA Procedures as Bard may
reasonably request. Representatives of Bard may, during normal business hours on
at least three business days' notice, visit and inspect NMT's manufacturing
facilities and perform such quality control testing of Products as is reasonably
necessary or desirable to ensure NMT's compliance with the provisions of this
Agreement.

            2.4. Inspection by Bard. Bard shall have the right, but not the
obligation, to inspect

                                        2
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any Product before accepting delivery of, or having an obligation to purchase,
that Product. No inspection or other action by Bard shall in any way obligate it
to purchase any defective or non-conforming goods or to retain any goods which
upon subsequent inspection or use prove to be defective or non-conforming.

            2.5. Alteration in Products or Specifications.

                  (a) NMT shall not make any change or alteration in the design
      or manufacture of any Product (or part thereof) without Bard's prior
      written consent and shall manufacture each Product fully in accordance
      with the Product Specifications.

                  (b) If Bard requests a change or alteration in the design or
      manufacture of any Product (or part thereof), NMT will use commercially
      reasonable efforts to accommodate such change as promptly as practicable;
      provided, however, that, except as provided in Section 2.5(c), (i) if any
      such change or alteration would result in an increase in NMT's
      manufacturing cost per unit, NMT will inform Bard in advance of such
      increase and, following such change or alteration, the Price per SNF Unit
      shall be increased in the amount of such cost increase, and (ii) Bard
      shall pay NMT for any design or engineering costs incurred by NMT in
      connection with such requested change or alteration, at a rate agreed to
      in advance by the parties.

                  (c) If a change or alteration in the design or manufacture of
      any Product (or part thereof) is required in order to correct a defect in,
      or a nonconformity to Product Specifications of, such Product (whether
      such defect or nonconformity is discovered by Bard, by NMT, or by a
      customer's complaint), NMT shall bear any increased design, engineering,
      or manufacturing costs incurred in making such change or alteration.

            2.6. Audit Rights. Upon request from Bard, NMT will provide Bard
with reasonable opportunity, at Bard's expense and during normal business hours,
to inspect and audit NMT's books and records relevant to the services provided
by NMT to Bard under this Agreement.

      3. Pricing and Payment; Minimum SNF Unit Purchase Obligation.

            3.1. SNF Production Capacity. NMT will maintain production capacity
for the SNF as required to fulfill [**]% of Bard's Minimum SNF Unit purchase
obligation (set forth in Section 3.2). NMT will use its commercially reasonable
efforts (but shall not be obligated) to satisfy Bard's requests for increased
quantities of SNF Units in excess of [**]% of Bard's minimum purchase
obligation.

            3.2. Minimum SNF Purchases; Purchase Price per Unit.

                  (a) Minimum Purchases. Bard agrees to purchase from NMT
      Minimum SNF Unit quantities in accordance with the following schedule:

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     -------------------------------------------------------------------------
        Shipment Timing                     Minimum SNF Units
        ---------------                     -----------------
     -------------------------------------------------------------------------
     Before [**]                o [**] SNF Units, as set forth in the
                                  Purchase Order delivered simultaneously with
                                  the execution of this Agreement
     -------------------------------------------------------------------------
     [**] - Transition Date     o [**] SNF Units per calendar quarter; provided
                                  that in the quarter in which the Transition
                                  Date falls, the minimum number of units shall
                                  be [**] x (number of days in quarter through
                                  the Transition Date / the total number of days
                                  in quarter)
     -------------------------------------------------------------------------

                  (b) The Price per SNF Unit shall be $[**] for Units shipped
      before [**] ("Initial Price") and $[**] for Units shipped between [**] and
      [**] ("Reduced Price"), as set forth on Exhibit 3.2. The Price per SNF
      Unit shall revert back to the Initial Price for Units shipped after [**]
      unless NMT shall have (i) failed to deliver the Product Line Documentation
      to Bard by December 15, 2001, as required by Section 4.14 of the Purchase
      Agreement or (ii) failed to complete the requirements set forth in Section
      9.3(a)(1) hereof by [**], (iii) failed to complete the requirements set
      forth in Section 9.3(a)(2) hereof by [**]. In such event, the Price per
      Unit shall remain at the Reduced Price for a number of shipping days
      beyond [**] that is equal to (x) the number of days beyond December 15,
      2001 that NMT shall have failed to deliver the Product Line Documentation
      plus (y) the number of days beyond [**] that NMT shall have failed to
      complete the requirements set forth in Section 9.3(a)(1) hereof plus (z)
      the number of days beyond [**] that NMT shall have failed to complete the
      requirements set forth in Section 9.3(a)(2) hereof.

                  (c) Bard may, at its option, include on each Purchase Order an
      order for certain accessories to the SNF Product, which shall be in
      addition to Bard's purchase of Minimum SNF Units pursuant to Section
      3.2(a). The purchase price for these accessories shall be as set forth on
      Exhibit 3.2(c).

            3.3. Bard's Purchase of Raw Materials and Work in Process. In
addition to purchasing finished SNF Units pursuant to Purchase Orders delivered
hereunder, Bard agrees to take delivery of all raw materials, work in process
and packaging materials (for both the SNF and the RNF and RC Products) that NMT
has in stock as of the Transition Date to the extent that it does not bear NMT's
markings ("Remaining Inventory"), provided that (i) the quantity of such
Remaining Inventory for the SNF shall not exceed an amount necessary to
manufacture and package [**] finished SNF Units, and (ii) the President or the
Chief Financial Officer of NMT shall deliver a certificate to Bard in the form
set forth as Exhibit 3.3 with respect to the amount, type, specifications, and
quality of such Remaining Inventory. With respect to the Remaining Inventory for
the SNF, Bard shall pay NMT at cost (upon NMT's submission to Bard of a
certificate setting forth such cost in reasonable detail). The Remaining
Inventory for the RNF and the RC shall be delivered to Bard without any
additional payment or compensation on the part of Bard. Title and risk of loss
or damage for Remaining Inventory shall pass to Bard upon delivery of such items
to a facility designated by Bard. NMT will pay all freight and insurance charges
on shipments of Remaining Inventory.

            3.4. Pricing and Payment.

                  (a) The SNF Price per Unit for each period set forth in
      Section 3.2(b) shall be firm for the duration of such periods, subject to
      adjustment pursuant to Section 2.5(b).

                                        4
<PAGE>

                  (b) Prices shall include all taxes and charges, however
      designated, imposed by any governmental authority on the manufacture,
      transportation or sale of the Products, including, without limitation, all
      privilege, excise, sales, use, value-added and property taxes. NMT shall
      reimburse Bard on demand or, at Bard's request, credit against future
      purchases, any such taxes or charges which Bard may pay or be requested to
      pay.

                  (c) Terms of payment shall be net thirty (30) days from the
      date of shipment, with interest at 1% per month for late payments.

      4. Orders and Delivery.

            4.1. Terms and Conditions. All orders for Products shall be subject
to the terms and conditions set forth in this Agreement. The terms and
conditions of this Agreement shall govern all sales of Products by NMT to Bard,
and any different, conflicting or additional terms (other than terms as to
quantities and proposed delivery dates) in a Purchase Order, invoice or other
writing or communication shall be of no force or effect unless they shall
constitute a waiver, modification or amendment of this Agreement duly made in
accordance with Section 13.1 hereof. Each Purchase Order shall specify a
quantity and delivery date.

            4.2. Forecasts and Firm Purchase Orders. Bard agrees to submit
forecasts and place Purchase Orders for SNF Units as follows: simultaneously
with the execution of this Agreement, Bard has provided to NMT a Purchase Order
in the form described in Section 4.3 with respect to the purchase of all the SNF
Units to be shipped to Bard from the Commencement Date through December 31,
2001, and a non-binding forecast of the number of SNF Units to be delivered to
Bard pursuant hereto during the succeeding nine (9) calendar months. Bard may
change its non-binding forecast for any month at any time upon written notice to
NMT; provided, however, that on the first day of each calendar month (starting
with the second full calendar month following the Commencement Date), one
additional month's non-binding forecast (as it may have been previously amended)
shall become binding and Bard will promptly submit a Purchase Order consistent
with the then current forecast for such month. For example, assuming the
Commencement Date is September 20, 2001, the remainder of September and the
months of October, November and December 2001 will be subject to a binding
Purchase Order as of the Commencement Date. The forecast for the month of
January, 2002 (as it may have been amended prior to November 1, 2001) will
become binding and subject to no further amendment as of November 1, 2001, and
the forecast for the month of February, 2002 (as it may have been amended prior
to December 1, 2001) shall become binding and subject to no further amendment as
of December 1, 2001.

            4.3. Contents of Purchase Orders. All Purchase Orders shall contain
the following information:

                  (a)   reference to this Agreement;

                  (b)   the quantity of SNF Units ordered (and SNF accessories
                        ordered, if applicable);

                  (c)   the requested delivery dates;

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<PAGE>

                  (d)   the Price per Unit as determined in accordance with this
                        Agreement; and

                  (e)   shipping instructions, including place of delivery.

            4.4. Shipping, Packaging and Delivery.

                  (a) NMT shall deliver all Products F.O.B. Bard's facility as
      designated in the applicable Purchase Order. All Products shall be shipped
      by NMT by a carrier consistent with the carrier used by NMT for shipments
      to Bard prior to the date of this Agreement.

                  (b) Packaging will be not less than the quality presently
      employed by NMT. Packaging shall at all times be able to pass the NSTA
      standard shipping test. Each shipment shall be accompanied by a
      certificate of sterilization and certificate of compliance stating that
      appropriate inspection and testing has confirmed compliance to all
      specifications prepared in connection with any filing with the FDA or
      submitted to the FDA or any regulatory authority for the Products in the
      shipment.

                  (c) NMT shall mark each Product with appropriate patent and
      trademark notices as reasonably required by Bard and pursuant to the laws
      of the United States or any foreign country in which SNF packages or other
      Products are sold. Color of package and labeling may be designated by
      Bard.

      5. Representations of NMT. NMT represents and warrants to Bard (i) that
NMT has and will have manufacturing plant capacity for the SNF as required to
fulfill Bard's Minimum SNF Unit purchase obligation (set forth in Section 3.2)
plus[**]%; (ii) that NMT and NMT's employees are subject to no conflicting
obligations with respect to discoveries, confidentiality or non-competition
which could affect the manufacture or sale of Products for Bard, and (iii) that
NMT will comply with all applicable laws in connection with the manufacture and
sale of the Products.

      6. Warranties.

            6.1. Subject to the following provisions, NMT warrants that each of
the Products shall conform to the applicable Product Specifications. Subject to
compliance with the last sentence of this Section 6.1 and with the provisions of
Section 6.2, Bard shall be entitled, at its option, to replacement or refund of
the purchase price of any Products which are reasonably determined by Bard to be
non-conforming or defective, such replacement or refund to be made by NMT prior
to or concurrently with the next scheduled shipment of Products to Bard or
within thirty (30) days after notice by Bard that such Products are
non-conforming or defective, whichever occurs earlier. Transportation, packaging
and storage charges and risk of loss in the storage and disposal of defective or
non-conforming Products and in the shipment of replacement Products to Bard
shall be borne by NMT. At its option, Bard may take any refund hereunder as a
credit against further payments otherwise due to NMT. Bard agrees to give NMT
notice of non-conforming or defective Products within thirty (30) days after
Bard receives shipment of such Products.

            6.2. NMT shall have thirty (30) days after notice from Bard that any
Product is non-conforming or defective to conduct, through its duly authorized
representative, an inspection of such Product at a location designated by NMT
and to dispose thereof in its discretion, subject in

                                        6
<PAGE>

each case to Bard's rights to receive a replacement, refund or credit prior to
any disposition. Upon the expiration of such thirty-day period Bard shall be
entitled to dispose of any non-conforming or defective Products remaining at
such location in its discretion, at the expense of NMT, and without any penalty
or obligation to NMT. NMT will notify Bard promptly if it disputes Bard's
determination that a Product is non-conforming or defective, and the parties
will work in good faith to resolve any such dispute. In the event the parties
fail to resolve such dispute, the parties shall proceed to resolve such dispute
in the manner set forth in Section 9.5 of the Purchase Agreement.

            6.3. NMT warrants any replacement Products supplied pursuant to this
Section 6, and any out-of-warranty Products replaced, repaired or modified by
NMT, on the same basis as it warrants new Products under Section 6.1. After the
Transition Date, since Seller will not be in a position to repair or replace
Products pursuant to its warranty, its warranty obligation will be limited to
refunding the purchase price paid by Bard for such Product.

            6.4. In the event that Bard accepts returns from customers or gives
credits to customers relating to complaints about the Products manufactured by
NMT, NMT and Bard will follow the guidelines for returns and complaint credits
that they have followed previous to this Agreement.

            6.5. EXCEPT AS EXPRESSLY PROVIDED HEREIN, NMT DOES NOT WARRANT THE
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS OR THEIR
PERFORMANCE, DOES NOT MAKE ANY WARRANTY, EXPRESS OR IMPLIED, WITH RESPECT TO
PRODUCTS, SPECIFICATIONS, SUPPORT, SERVICE OR ANYTHING ELSE AND DOES NOT MAKE
ANY WARRANTY TO BARD CUSTOMERS OR AGENTS. NMT SHALL NOT BE LIABLE FOR ANY
INCIDENTAL OR CONSEQUENTIAL LOSS, DAMAGE OR EXPENSE, INCLUDING LOSS OF PROFIT
DIRECTLY OR INDIRECTLY ARISING FROM THE SALE OR USE OF PRODUCTS, EXCEPT WHERE
SUCH LOSS, DAMAGE OR EXPENSE IS CAUSED BY NMT'S WILFUL OR GROSSLY NEGLIGENT
BREACH HEREOF.

      7. Bard's Logo Identifications. All Products provided to Bard hereunder
shall bear solely such trademarks, service marks, trade names and logo
identifications as Bard shall specify and no others. NMT shall have no right or
license to use any such trademark, service mark, trade name or logo
identification (other than to affix them to the Products sold to Bard hereunder)
and shall not use them on or with respect to any product or service provided to
any Person other than Bard. All goodwill relating to or developed with respect
to any such trademark, trade name or logo identification shall belong
exclusively to Bard or its affiliates.

      8. Indemnification. NMT's obligation to indemnify Bard for breaches of
warranty hereunder, infringement of intellectual property rights of others, and
products liability shall be governed by the Purchase Agreement.

      9. License; Transfer of Manufacturing; Machinery and Equipment.

            9.1. Limited License. Bard will purchase from NMT, pursuant to the
Purchase Agreement, all Intellectual Property Rights (as defined in the Purchase
Agreement) related to the

                                        7
<PAGE>

Products and all Machinery and Equipment (as defined in the Purchase Agreement)
used in connection with the Products. Bard hereby grants to NMT a non-exclusive
license in and to the Intellectual Property Rights and an exclusive license to
use the Machinery and Equipment, but only to the extent that such Intellectual
Property Rights and the Machinery and Equipment are necessary to enable NMT to
perform its obligations hereunder. Such licenses shall be royalty-free and shall
expire upon the expiration or earlier termination of this Agreement.

            9.2. Transition Assistance. It is understood that, following the
Transition Date, Bard intends to manufacture and produce the Products itself or
with another third party. NMT agrees to provide reasonable cooperation to Bard
in order to effectuate the orderly transition of the manufacture of the Products
from NMT to Bard or its designee, and the parties agree to work in good faith to
establish a mutually agreeable transition plan ("Transition Plan"). Without
limiting the generality of the foregoing, NMT agrees (i) to assign to Bard, upon
Bard's request, all vendor and other third party contracts exclusively required
to produce the Products and not required by NMT for production of other NMT
products, (ii) to cooperate with Bard to provide to Bard alternative sources of
supply for any equipment, components or raw materials which cannot be sold or
assigned to Bard hereunder, (iii) to provide without charge consultation and
other assistance as reasonably requested by Bard to assist Bard in establishing
its Product manufacturing operations and research and development capabilities
(but in no event shall such assistance exceed an aggregate of [**] hours), and
(iv) to permit Bard personnel to observe the manufacturing process at NMT's
manufacturing facilities (provided that no more than five (5) Bard
representatives shall be entitled to observe at any one time). NMT's obligation
to provide assistance under this Section 9.2 shall commence on the Effective
Date and continue for 90 days after the date on which Bard commences in-house or
other third party manufacturing of the SNF. Notwithstanding anything to the
contrary contained herein, Bard agrees to reimburse NMT for all reasonable
out-of-pocket expenses incurred in connection with NMT's compliance with this
Section 9.2 to the extent that such expenses are approved in advance by Bard.

            9.3. Manufacturing Process Requirements.

                  (a) Manufacturing Process Enhancements. NMT agrees to complete
      the following manufacturing process enhancements on or before the dates
      set forth below:

                        (1) By [**]:

                              (A) Qualify and validate salt bath annealing
                        process and equipment for SNF production;

                              (B) Qualify and validate SNF plasma welder for RNF
                        production;

                              (C) Convert all manufacturing drawings from
                        Microstation to SolidWorks;

                              (D) Qualify and validate capital equipment
                        required (assuming completion of items A-C above) to
                        produce the SNF at production rates equal to the
                        production rates required by this Agreement (i.e. [**]
                        SNF units/year) and to produce the RNF and RC; provided
                        however that Bard will purchase any SNF jigs required
                        beyond the [**] SNF jigs already in NMT's possession;

                                        8
<PAGE>

                              (E) All process and testing software shall be
                        validated through the most up-to-date revision of the
                        manufacturing processes for both SNF and RNF production;

                              (F) Complete and transfer the RNF project to
                        production (using the most up-to-date revision of the
                        manufacturing processes), with completed process
                        validation and qualification; and

                              (G) Update the Product Line Documentation (as
                        defined in the Purchase Agreement) to reflect the
                        enhancements required by this Section 9.3(a).

                        (2) By [**], purchase automated grinding equipment for
                  the SNF and qualify and validate automated grinding for both
                  SNF and RNF production.

                  (b) Further Product Line Documentation Updates. In addition to
      updating the Product Line Documentation as required by Section
      9.3(a)(1)(G), NMT will update the Product Line Documentation from time to
      time to reflect all other improvements, enhancements or modifications to
      the Products and the manufacturing processes that NMT may develop during
      the term of this Agreement, such updates to be completed as promptly as
      practicable after such improvements, enhancements or modifications are
      developed.

                  (c) Ownership of Enhancements. Bard shall own all right, title
      and interest in and to all improvements, enhancements and modifications to
      the Products and the manufacturing process developed by NMT during the
      term hereof, and all documentation, machinery and equipment reflecting
      such improvements, enhancements and modifications. NMT hereby assigns to
      Bard such rights as it otherwise would have had in such improvements,
      enhancements, modifications and documentation, and agrees to execute such
      instruments of assignment and transfer and other documents as Bard shall
      reasonably request to confirm, reflect and ensure Bard's ownership
      thereof.

            9.4. Machinery and Equipment.

                  (a) Maintenance, Repair and Replacement. Bard will purchase
      from NMT, at the Closing of the transactions contemplated by the Purchase
      Agreement, all Machinery and Equipment (as defined in the Purchase
      Agreement) used in connection with the Products and as listed on Exhibit
      9.4 hereof. To enable NMT to perform its duties hereunder, Bard has
      licensed the Machinery and Equipment to NMT for use during the term of
      this Agreement. NMT agrees that, during the Term of this Agreement, it
      shall be responsible, at its cost, for the maintenance and repair (and, if
      necessary, replacement) of the Machinery and Equipment, in accordance with
      the standards of upkeep, maintenance, repair and replacement at least
      equal to the standards which NMT maintained for such Machinery and
      Equipment prior to the date of this Agreement. Until NMT delivers the
      Machinery and Equipment to Bard in accordance with Section 9.4(b) below,
      NMT shall bear all risk of loss with respect to all Machinery and
      Equipment and shall keep the same insured against such loss as it deems to
      be appropriate.

                                        9
<PAGE>

                  (b) Delivery of Machinery and Equipment to Bard. NMT will
      deliver the Machinery and Equipment to Bard in accordance with a schedule
      to be set forth in the Transition Plan. Such Machinery and Equipment shall
      be in substantially the same condition, reasonable wear and tear excepted,
      as it was on the Commencement Date. Risk of loss or damage for the
      Machinery and Equipment shall pass to Bard upon delivery of such items to
      a facility designated by Bard. NMT will pay all freight and insurance
      charges on the delivery of the Machinery and Equipment to Bard.

                  (c) No Liens. NMT will maintain the Machinery and Equipment
      free from all liens and encumbrances (other than any liens or encumbrances
      incurred by Bard), and shall execute UCC-1 Financing Statements and such
      other documents as Bard may reasonably request to provide NMT's creditors
      with notice of Bard's ownership thereof.

      10. Term and Termination.

            10.1. Term. If not earlier terminated in accordance with this
Section 10, this Agreement shall have a term (the "Term") commencing on the
Effective Date and continuing until the Transition Date, provided that the
provisions of Section 9.2 and 9.4 shall survive and continue for a period not to
exceed 90 days after the date on which Bard commences in-house or other third
party manufacturing of the SNF.

            10.2. Termination under Certain Circumstances. Either party may
terminate this Agreement by written notice to the other party following the
occurrence of any of the following events:

                  (a) if the other party ceases doing business as a going
      concern, becomes insolvent, or makes an assignment for the benefit of
      creditors; or

                  (b) if the other party files a petition for reorganization or
      bankruptcy under the United States Bankruptcy Code or any other similar
      law of any other jurisdiction, or if any petition for reorganization or
      bankruptcy under such Code or under any other similar law of any other
      jurisdiction is filed against the other party and is not dismissed or
      vacated within thirty (30) days thereafter.

            10.3. Termination by NMT. NMT agrees that this Agreement shall
terminate (i) only through expiration of the Term of this Agreement as set forth
in Section 10.1 or termination as set forth in Section 10.2 hereof, (ii) by
agreement of both parties hereto or (iii) at the option of NMT in the event that
Bard shall fail to pay the purchase price of any Product within thirty (30) days
after its receipt of written notice from NMT that such payment is due and unpaid
and that NMT intends to terminate this Agreement if such payment remains unpaid
after the end of the 30-day notice period; provided, however, that NMT shall not
be entitled to terminate this Agreement pursuant to this section if NMT is in
material breach of its obligations hereunder (including delivery of
non-conforming or defective Products) In the event of any breach of this
Agreement by Bard other than a breach described in the immediately preceding
sentence, NMT shall have no right to terminate this Agreement, and damages and
equitable relief prohibiting further such breaches shall be its sole remedies
for any other breach of any term or condition hereof.

                                       10
<PAGE>

            10.4. Termination by Bard. Bard may terminate this Agreement if NMT
is in material breach of any provision of this Agreement and has failed to cure
such breach within thirty (30) days after receipt of written notice thereof from
Bard alleging the breach, provided, however, that Bard shall not be entitled to
terminate this Agreement pursuant to this section if Bard is in material breach
of its obligations hereunder.

            10.5. Possession of Machinery and Equipment. Upon any termination
hereof, NMT agrees to deliver the Machinery and Equipment to Bard, in the manner
set forth in Section 9.4(b), within 10 days of such termination. If NMT fails to
so deliver the Machinery and Equipment, Bard may enter NMT's premises in order
to take immediate possession thereof.

      11. Rights in Technology.

            11.1. Written Work Product and Inventions Owned by Bard. The parties
agree that (i) the copyright and other proprietary rights in any and all written
materials, including, without limitation, machine-readable materials and
documentation and materials which form part of the Products (hereinafter called
"Written Work Product"), and (ii) any and all inventions, improvements or
discoveries relating to the Products ("Inventions"), in each case that are
conceived, developed or reduced to practice during the term of and in the
performance of the terms and conditions of this Agreement by the employees of
either party, shall be owned by Bard, subject to the license granted to NMT
hereunder. NMT will promptly notify Bard in writing of any Written Work Product
or Invention conceived, developed or reduced to practice by any employee of NMT,
such notification to contain a copy of the Written Work Product or a reasonably
detailed description of the Invention that is the subject of the notice.

            11.2. No Other Licenses. Except as provided in this Agreement for
licenses from Bard to NMT, no license by either NMT or Bard to the other under
any patents, copyrights, proprietary rights or trade secrets now owned or
hereafter obtained is granted or implied either by this Agreement or by
furnishing any information or equipment hereunder to that party.

      12. Confidential Information.

            12.1. As used herein, "Confidential Information" shall mean any
plan, design, configuration, style or concept of any Product, any scientific,
technical, merchandising, production or management design, procedure, formula,
discovery, invention, item of information, idea, concept or improvement or any
customer or supplier list (and any tangible evidence, record or representation
of any of the foregoing), which is maintained in secrecy or confidence by either
NMT or Bard or by any person or entity affiliated with NMT or Bard, which might
permit NMT or Bard or any of their respective customers to obtain a competitive
advantage over competitors who do not have access thereto and which is provided
by NMT or Bard to the other hereunder in reliance on the agreements of the party
receiving the Confidential Information (the "Receiving Party") herein.

            12.2. The foregoing notwithstanding, the obligations of this Section
12 shall not apply with respect to any information, data or other material
described above, which is

                  (a) known to the Receiving Party at the time of disclosure; or

                                       11
<PAGE>

                  (b) is or becomes publicly known or otherwise enters the
      public domain through no wrongful act by the Receiving Party; or

                  (c) is received by the Receiving Party from a third party
      which has no obligation to the other party to maintain the information in
      confidence; or

                  (d) is subsequently developed independently by the Receiving
      Party without use of any information, data or other material of the other
      party which is confidential and protected hereunder.

            12.3. Each Receiving Party shall at all times hold confidential in
accordance with this Section all of the Confidential Information received by it
from the other party. Each Receiving Party shall use such care in the prevention
of disclosure of the other party's Confidential Information as the Receiving
Party uses in the protection of its own information and materials of like kind
and sensitivity. NMT shall not use any Confidential Information or any
derivative or variation thereof except to process Purchase Orders and Product
Specifications for Bard and to manufacture Products for Bard.

            12.4. Each Receiving Party shall give access to the Confidential
Information of the other party only to such of the Receiving Party's employees
or other persons as are engaged in (i) in the case of NMT as the Receiving
Party, processing Purchase Orders or Product Specifications for Bard, performing
development work on the Products hereunder or manufacturing the Products for
Bard and (ii) in the case of Bard as the Receiving Party, in its business
relating to the Products or similar products. NMT and Bard each agree further
that before gaining access to any Confidential Information, each such employee
or person shall be advised of the confidential nature of the Confidential
Information of the other party and of the existence and importance of this
Agreement and shall enter into a written confidentiality agreement prohibiting
any use or disclosure of any of the Confidential Information except in
accordance with this Agreement.

            12.5. This Agreement shall not be construed to grant to either NMT
or Bard any license or other rights in any Confidential Information of the other
except as expressly set forth herein.

            12.6. The foregoing notwithstanding, NMT and Bard agree that the
obligations set forth above shall not apply to any part of any Product sold or
to be sold by Bard or to any customer or service manuals or documentation
prepared in connection with the sale, marketing or service of any Product and
that no obligation of confidentiality or restriction on use shall bind or limit
any customer or potential customer for any of the Products in such Person's
capacity as such.

            12.7. NMT and Bard each acknowledge that money damages alone will
not adequately compensate the other for breach of any of the covenants and
agreements in this Section 12 and, therefore, agree that in the event of the
breach or threatened breach of any such covenant or agreement, in addition to
all other remedies available to the other party, at law, in equity, or
otherwise, such other party shall be entitled to injunctive relief compelling
specific performance of, or other compliance with, the terms hereof.

                                       12
<PAGE>

            12.8. In the event that any provision of this Agreement shall be
determined to be unenforceable by any court of competent jurisdiction by reason
of its extending for too great a period of time or over too large a geographic
area or over too great a range of activities, it shall be interpreted to extend
only over the maximum period of time, geographic area or range of activities as
to which it may be enforceable.

      13. Miscellaneous.

            13.1. Waivers and Amendments.

                  (a) This Agreement may be amended, modified or supplemented
      only by a written instrument executed by the parties hereto.

                  (b) No waiver of any provision of this Agreement, or consent
      to any departure from the terms hereof, shall be effective unless the same
      shall be in writing and signed by the party waiving or consenting thereto.
      No failure on the part of any party to exercise, and no delay in
      exercising, any right or remedy hereunder shall operate as a waiver
      thereof, nor shall any single or partial exercise of any such right or
      remedy by such party preclude any other or further exercise thereof or the
      exercise of any other right or remedy. The waiver by any party hereto of a
      breach of any provision of this Agreement shall not operate as a waiver of
      any subsequent breach. All rights and remedies hereunder are cumulative
      and are in addition to and not exclusive of any other rights and remedies
      provided by law.

            13.2. Entire Agreement. This Agreement and the Related Documents (as
such term is defined in the Purchase Agreement) constitute the entire agreement
among the parties hereto with respect to the subject matter hereof and
supersedes all prior agreements and understandings, whether written or oral,
among the parties, or any of them, in connection with such subject matter.

            13.3. Relationship of the Parties. This Agreement shall not
constitute NMT the agent or legal representative of Bard for any purpose
whatsoever, and NMT shall not hold itself out as an agent of Bard. This
Agreement creates no relationship of joint adventurers, partners, associates,
employment or principal and agent between the parties, and both parties are
acting as independent contractors. Neither NMT nor Bard is granted herein any
right or authority to, and shall not attempt to, assume or create any obligation
or responsibility for or on behalf of the other. Neither NMT nor Bard shall have
any authority to bind the other to any contract, whether of employment or
otherwise, and, NMT and Bard shall bear all of their respective expenses for
their operations, including, without limitation, the compensation of their
employees and salesmen and the maintenance of their offices, service and
warehouse facilities. NMT and Bard shall each be solely responsible for their
own employees and salesmen and for their acts and the things done by them.

            13.4. No Rights Granted. Nothing in this Agreement shall operate to
confer on NMT the right to use any trademark, service mark, trade name or logo
identification now or hereafter used by Bard whether or not registered, without
the written consent of Bard.

            13.5. Time of Essence. Time shall be of the essence of each Party's
performance hereunder.

                                       13
<PAGE>

            13.6. Assignment. Neither this Agreement nor any right or obligation
hereunder shall be assigned or delegated by either party, voluntarily or by
operation of law, without the prior written consent of the other party, which
consent may be withheld for any reason, provided, however, that Bard may assign
this Agreement and delegate its obligations hereunder in full to any Person
which shall acquire the Product Line or to any majority-owned subsidiary of Bard
or any Affiliate of Bard if the assignee shall assume Bard's obligations
hereunder in writing. Any attempted assignment in violation of the immediately
preceding sentence shall be null and void. For purposes of this Section 13.6
with respect to Bard, an assignment shall not be deemed to occur in the event of
a sale or transfer of substantially all of the assets of, or a majority interest
in the voting shares of, Bard to, or the merger or consolidation of Bard with or
into, any other Person.

            13.7. Dispute Resolution; Arbitration. All differences, disputes or
claims arising in connection with this Agreement or any transaction or
occurrence contemplated hereby shall be settled in the manner set forth in
Section 9.5 of the Purchase Agreement.

            13.8. Governing Law. This Agreement shall be governed by, and
construed and enforced in accordance with, the substantive laws of The
Commonwealth of Massachusetts, without giving effect to its conflicts of laws
rules.

            13.9. No Election of Remedies. The rights and remedies accorded
herein to NMT and Bard are cumulative and in addition to those provided by law,
and may be exercised separately, concurrently, or successively.

            13.10. Notices. Any notice or other communication in connection with
this Agreement shall be in writing and shall be sufficiently given if sent in
accordance with Section 10.9 of the Purchase Agreement.

            13.11. Survival. The provisions of Sections 11, 12, 13.7, 13.8, 13.9
and this 13.11 shall survive the expiration or earlier termination of this
Agreement.

            13.12. Force Majeure. In the event that the delay or failure of a
party to comply with any obligation created by this Agreement is caused by Force
Majeure, that obligation shall be suspended during the continuance of the Force
Majeure condition. The term "Force Majeure" shall mean any event beyond the
reasonable control of the parties, including without limitation, fire, riots,
strikes, epidemics, war (declared or undeclared) and embargoes, but shall not
include flooding.

                                    * * * * *

          The remainder of this page has been intentionally left blank

                                       14
<PAGE>

      IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed in their names by their properly and duly authorized officers or
representatives as of the date first above written.

NMT MEDICAL, INC.                       C.R. BARD, INC.

By: John E. Ahern                       By: Robert Mellen
    --------------------------------        --------------------------------
    President and CEO                       President, Bard Peripheral
                                            Technologies, a division of
                                            C.R. Bard, Inc.

                                       15
<PAGE>

                                 Exhibit 3.2(c)

-------------------------------------------------------------------------------
                                                               Unit Price
-------------------------------------------------------------------------------
  Bard Code                    Description                  Initial   Reduced
-------------------------------------------------------------------------------
    2120F     Simon Nitinol Filter-Femoral-Straight Line     $[**]    $[**]
              Delivery System
-------------------------------------------------------------------------------
              Simon Nitinol Filter-Jugular-Straight Line
    2220J     Delivery System                                $[**]    $[**]
-------------------------------------------------------------------------------
    2320A     Simon Nitinol Filter-Antecubital-Straight      $[**]    $[**]
              Line Delivery System
-------------------------------------------------------------------------------

-------------------------------------------------------------------------------
    2110F     Simon Nitinol Filter-Femoral-Hoop Delivery     $[**]    $[**]
              System
-------------------------------------------------------------------------------
              Simon Nitinol Filter-Jugular-Hoop Delivery
    2210J     System                                         $[**]    $[**]
-------------------------------------------------------------------------------
    2310A     Simon Nitinol Filter-Antecubital-Hoop          $[**]    $[**]
              Delivery System
-------------------------------------------------------------------------------

-------------------------------------------------------------------------------
    3120F     SNF Introducer                                 $[**]    $[**]
-------------------------------------------------------------------------------
    3220J     SNF Introducer                                 $[**]    $[**]
-------------------------------------------------------------------------------
    3320A     SNF Introducer                                 $[**]    $[**]
-------------------------------------------------------------------------------

                                       16
<PAGE>

                                   Exhibit 3.3

                     CERTIFICATION AS TO REMAINING INVENTORY

      The undersigned NMT Medical, Inc., hereby certifies to C.R. Bard, Inc. as
follows:

      1. The Remaining Inventory consists of the following (specify amount and
type):

      2. The raw materials in the Remaining Inventory, and the materials used in
the manufacture of the work in process in the Remaining Inventory, conform to
the most current revision of the manufacturing process (as defined in Section
9.3 of the Transitional Manufacturing Agreement) and are of the same quality as
the materials used by NMT in the manufacture of the Units purchased by or
delivered to Bard under the Transitional Manufacturing Agreement;

      3. The Remaining Inventory (to the extent that it is work in process)
conforms to the most current revision of the Product Specifications applicable
to the relevant stage of the manufacturing process, incorporates the most
current revision of the manufacturing process (as defined in Section 9.3 of the
Transitional Manufacturing Agreement) and is free from defects in materials and
workmanship.

                                        NMT MEDICAL, INC.

                                        By: ____________________________________
                                        Title:__________________________________

                                       17

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