EXHIBIT 99.1

                                CARBON AGREEMENT

         THIS AGREEMENT ("Agreement") is effective as of December 29, 1999, by
and between SULZER CARBOMEDICS, INC. ("CMI") and ATS MEDICAL, INC. (formerly
Helix BioCore, Inc.) ("ATS").

         WHEREAS, CMI and ATS previously entered into that certain License
Agreement dated as of September 24, 1990, as amended (the "License Agreement"),
that certain O.E.M. Supply Agreement dated as of September 24, 1990, as amended
(the "O.E.M. Supply Agreement") and that certain Option Agreement dated as of
September 24, 1990, as amended (the "Option Agreement") (the License Agreement,
the O.E.M. Supply Agreement and the Option Agreement collectively the "ATS
Agreements"), and

         WHEREAS, ATS desires to acquire a license from CMI to use certain CMI
proprietary technology and CMI is willing to grant such a license, all upon the
terms and conditions contained in this Agreement, and upon ATS and CMI entering
into Amendment No. 2 of the License Agreement and Amendment No. 7 to O.E.M.
Supply Agreement (collectively the "Amendments") attached hereto as Attachments
Nos. 1 and 2, respectively.

         NOW, THEREFORE, in consideration of the premises and the faithful
performance of the mutual covenants and obligations contained in this Agreement
and the ATS Agreements as amended in accordance with the Amendments, the parties
agree as follows:

Article 1.0   DEFINITIONS

1.1 Licensed Product. As used herein, "Licensed Product" shall mean a specific
configuration of a bileaflet heart valve prosthesis embodying at least one of
the claims of U.S.P.N. 4,692,165 (hereinafter called the "Patent") and having
substantially flat leaflets and opposed pivot posts on an interior surface of an
annular body of said heart valve, said pivot posts comprising spherical surface
portions, each pivot post being receivable in a notch in a leaflet or
constituent parts for such a bileaflet heart valve prosthesis. The Licensed
Product will comprise leaflets as shown in Fig. 17 of the Patent and pivots as
shown in Fig. 25 of the Patent.

1.2 Licensed Technology. As used herein, "Licensed Technology" shall mean all
trade secrets, know-how and other intellectual property necessary to
manufacture, or have manufactured, use, sell and assemble a Licensed Product and
any components thereof.

Article 2.0   LICENSE

2.1 Scope of License. Subject to the payment of the fees set forth herein, CMI
hereby grants to ATS an exclusive worldwide right and license to use the
Licensed Technology (subject to rights, if any, reserved by General Atomic) to
make, use, sell and assemble the Licensed Product and components thereof and a
non-exclusive worldwide right and license to use the Licensed


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Technology for any other purpose. Notwithstanding the foregoing, ATS shall not
develop or produce any component parts or assemblies for any mechanical heart
valve except the Licensed Product, improvements and modifications thereon and
any other heart valve owned by ATS or one of its affiliates, until January 1,
2009, and shall not develop, manufacture, or produce the CPHV valve or any
improvements and modifications thereon. CMI shall not develop or produce any
component parts or assemblies for the Licensed Product, improvements and
modifications thereon other than for sale to ATS. This Agreement shall not
confer any right, title or interest in or to any letters patent or patent
application other than those referred to herein. The foregoing right and license
expressly excludes the right to grant sublicenses to any non-affiliate of ATS
but includes the right to sublicense such right and license to any entity
controlling, controlled by or under common control with ATS.

2.2 Regulatory Approvals. ATS will have the sole obligation to obtain any
approvals necessary for manufacture and marketing of the Licensed Product using
the Licensed Technology. CMI hereby grants to ATS the right to refer any
domestic or international regulatory body, including without limitation the FDA,
to CMI's regulatory filings and any domestic or international dossier,
applications or master files for the Licensed Technology necessary to
demonstrate the equivalence of the carbon produced using the Licensed Technology
to the carbon (i.e., Pyrolite(R) carbon) employed by ATS prior to the execution
of this Agreement.

2.3 Production Line. The Licensed Technology requires a state-of-the-art
component manufacturing production line, which will be independent of CMI,
whether accomplished internally by ATS or by qualified outside vendors, and will
be substantially equivalent to Licensor's own current component manufacturing
production line (the "Production Line"), to produce the Licensed Product. The
Production Line shall be built and become operational within the anniversary
milestones set forth in Section 2.5 below. Accordingly, CMI and ATS shall have
the following respective responsibilities:

         (a)      At ATS's expense, CMI shall provide ATS with a basic space
                  plan and other requirements ("Space Plan") for a suitable site
                  (the "Site") for the Production Line, provided that the
                  expense covered by ATS shall be the incremental expense of
                  producing the Space Plan for ATS and shall not include
                  development costs previously incurred by CMI;

         (b)      At its own expense and in consultation with CMI, ATS shall
                  lease or purchase the Site in conformity with the Space Plan;

         (c)      At ATS's expense, CMI shall provide ATS with requirements and
                  specifications for equipment, materials, utilities and such
                  other configuration and installation details ("Line
                  Requirements") as may be necessary for the Production Line,
                  provided that the expense covered by ATS shall be the
                  incremental expense of producing the Line Requirements for ATS
                  and shall not include development costs previously incurred by
                  CMI;


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         (d)      At its own expense and in consultation with CMI, ATS shall
                  make (or cause to be made) the Site ready for construction and
                  installation of the Production Line;

         (e)      At its own expense and in consultation with CMI, ATS shall
                  purchase, lease or otherwise obtain the equipment, materials,
                  utilities etc. in conformity with the Line Requirements and
                  cause such items to be delivered or made available at the
                  Site;

         (f)      At the expense of and in consultation with ATS, CMI shall
                  supervise the construction and installation of the Production
                  Line, subject to appropriate access, support and utility
                  connections as reasonably necessary at the Site;

         (g)      At the expense of and in consultation with ATS, CMI shall
                  supervise the acceptance and qualification testing of the
                  Production Line upon completion of the construction and
                  installation and shall provide a good faith opinion in writing
                  to ATS that the Production Line is ready for commercial
                  production of the Licensed Product in conformity to applicable
                  FDA "good manufacturing practices/quality system requirements"
                  ("GMP/QSR") guidelines; in the event that the Production Line
                  fails to obtain any required FDA GMP/QSR approvals, CMI shall
                  provide such further supervision of acceptance and
                  qualification testing for the Production Line as is necessary
                  to achieve such approvals; and

         (h)      At the expense of and in consultation with ATS, CMI shall
                  provide on-site supervision of the Production Line's initial
                  start-up operation until such line has run for at least one
                  three consecutive month period producing the Licensed Product
                  and components thereof using the Licensed Technology at a rate
                  of 10,000 valve sets per year and with target yields and
                  direct labor hours equal to the lesser of 1.33 times the 1999
                  average yields and direct labor hours or 1.15 times the 2001
                  average yields and direct labor hours of CMI producing
                  components for the Licensed Product. On or before February 1,
                  2000 CMI shall provide to ATS its 1999 average yields and
                  direct labor hours for producing components for the Licensed
                  Product. Notwithstanding the foregoing, CMI shall provide
                  on-site supervision of the Production Line's initial start-up
                  operation until such line is producing Licensed Product with
                  physical properties (including specifically mechanical
                  properties, chemical properties and surface characteristics)
                  statistically equivalent to those of CMI's Pyrolite(R)carbon
                  components for the Licensed Product as specified in the FDA
                  Guidance Document for Pyrolytic Carbon.

         CMI shall assign key personnel to perform the services described above
as well as such additional personnel as are reasonably necessary to fulfill
CMI's obligations hereunder.

2.4 Technology Transfer. In its transfer of the Licensed Technology to ATS, CMI
shall provide such reasonable training and documentation to ATS to enable ATS to
obtain ISO 9002 certification and FDA GMP/QSR approval of the Production Line
and the Licensed Product


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made thereon. To the extent that CMI documentation ("CMI Documentation") for the
Licensed Technology is to be transferred hereunder, CMI shall provide one (1)
legible hard copy of each manual or other documentation package or the
electronic files thereof in Microsoft Word or Excel format or such other
computer-aided design data used by CMI to manufacture Licensed Product in a
format readable using commercially available software. CMI hereby grants ATS a
non-exclusive, royalty-free, worldwide license to make, distribute and use such
internal copies and derivative works of the CMI Documentation as are reasonably
necessary to use the Licensed Technology for the purposes hereof, provided each
such copy or derivative work shall retain any CMI copyright, trademark or other
proprietary notices as are contained in the original version thereof, and
provided further that ATS agrees to pay any license fees or additional software
development costs in connection herewith. Within ninety (90) days of the
effective date of this Agreement, the parties shall adopt a mutually acceptable
training and technology transfer plan to enable selected ATS managers, engineers
and other staff to acquire and master the Licensed Technology, including, where
appropriate, a system for CMI to "train the trainers."

After the third anniversary date of this Agreement, CMI may notify ATS in
writing that it is ready to initiate its transfer to ATS of the Licensed
Technology, equipment and machining specifications and operating capability to
permit ATS to develop the capability to internally machine graphite parts (the
"Graphite Capability"), machine pyrolytic carbon coated parts (the "Pyrolytic
Carbon Capability"), and develop its own tooling parts (the "Tooling
Capability") (the date of such notification respectively referred to herein as
the "Graphite Notice Date", the "Pyrolytic Carbon Notice Date" and the "Tooling
Notice Date"). ATS shall notify CMI in writing within thirty (30) business days
of the Graphite Notice Date, the Pyrolytic Carbon Notice Date and the Tooling
Notice Date, as applicable, whether it intends to proceed to develop the
Graphite Capability, the Pyrolytic Carbon Capability, or the Tooling Capability,
as applicable (respectively the "Graphite Decision Date", the "Pyrolytic Carbon
Decision Date"and the "Tooling Decision Date"). If ATS fails to provide such a
notification, such action shall be deemed to be a decision not to develop such
capability.

After the third anniversary date of this Agreement, ATS may notify CMI in
writing that it is ready to receive transfer to ATS of the Graphite Capability,
the Pyrolytic Carbon Capability, and the Tooling Capability. CMI will use its
best efforts to commence transfer of such capability within six (6) months after
receipt of such notice from ATS.

2.5 License Fees. In consideration of the right and license granted herein, ATS
shall pay CMI as its sole and exclusive compensation therefor a total license
fee of forty-one million dollars ($41,000,000) ("License Fee"). ATS shall pay
the License Fee in eight (8) installments as follows:

         1:       five million dollars ($5,000,000) upon the parties' execution
                  of this Agreement;


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         2:       three million dollars ($3,000,000) on the later of (i) the
                  first anniversary date of this Agreement or (ii) the date six
                  (6) months after the date on which CMI has provided to ATS***;

         3:       five million dollars ($5,000,000) on the later of (i) the
                  second anniversary date of this Agreement or (ii) the date on
                  which ATS, under CMI supervision, *** is delayed beyond such
                  second anniversary due to ATS' failure to use its best efforts
                  to complete construction and installation of the Production
                  Line by June 30, 2001, in which case this payment shall be
                  payable on such second anniversary;

         4:       five million dollars ($5,000,000) on the later of (i) the
                  third anniversary date of this Agreement, or (ii) the date on
                  which ATS has ***;

         5:       five million dollars ($5,000,000) on the later of (i) the
                  fourth anniversary date of this Agreement or (ii) the date on
                  which ATS has the capacity on the Production Line ***;

         6:       six million dollars ($6,000,000) on the later of (i) the fifth
                  anniversary date of this Agreement, (ii) ***, or (iii) ***;

         7:       six million dollars ($6,000,000) on the later of (i) the sixth
                  anniversary date of this Agreement, (ii) *** or (iii) ***;

         8:       six million dollars ($6,000,000) on the later of (i) the
                  seventh anniversary date of this Agreement, (ii) *** or (iii)
                  ***.

2.6 Expenses. In addition to the License Fee, for all items specified in Section
2.3 above where ATS is to bear the expenses of CMI, ATS shall reimburse CMI for
the following:

         (a)      CMI employee time spent on the Production Line project, billed
                  at a rate of ***/hour for employees at or above manager level
                  or engineers and ***/hour for all other employees (including
                  travel time between their normal work location and the Site);

         (b)      reasonable and customary CMI employee travel costs associated
                  with the Production Line project, including lodging, leased
                  automobile expenses, other than gasoline, and coach airfare,
                  as appropriate;

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

*** Denotes confidential information that has been omitted from the exhibit and
filed separately, accompanied by a confidential treatment request, with the
Securities and Exchange Commission pursuant to Rule 24B-2 of the Securities
Exchange Act of 1934.


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         (c)      for each CMI employee working at the Site, a mutually agreed
                  per diem amount per day to cover food, parking, gasoline,
                  laundry, telephone and entertainment;

         (d)      other reasonable, customary and incidental out-of-pocket
                  expenses incurred by any CMI employee working at the Site,
                  other than personal expenses covered by the per diem in clause
                  (c) above; and

         (e)      costs for any equipment or materials procured by CMI for use
                  at or installation on the Production Line, subject to ATS'
                  prior approval thereof for any expenditures in excess of $500
                  per item; provided that any such equipment or materials shall
                  become the sole property of ATS upon reimbursement in
                  accordance with this clause (e).

         CMI shall submit to ATS written invoices for any of the above expense
items, together with copies of any underlying invoices or statements as
requested by ATS, and ATS shall pay such invoices within thirty (30) days after
receipt thereof.

2.7 Site Support. During the construction, testing and start-up phases of the
Production Line project, at no charge to CMI, ATS shall furnish CMI personnel
working at the Site with reasonable offices, office equipment, telephone,
computer and facsimile equipment and incidental photocopying and other office
support.

2.8 Facility Rules; Worker's Compensation and General Liability Insurance. CMI
employees working at the Site shall observe and honor any reasonable ATS
facility rules generally applicable to ATS employees at such location. CMI shall
maintain its own worker's compensation and general liability insurance
applicable to all CMI employees working at the Site.

2.9 Non-compete/Non-solicitation of Employees. ATS and CMI shall honor each
others' non-compete agreements with their respective employees. Until two (2)
years after the earlier of completion of the milestone payments described in
section 2.5 or termination of this Agreement, CMI shall not, without the prior
written approval of ATS, directly or indirectly, (i) solicit, induce, or attempt
to solicit or induce any employee of ATS to leave ATS or (ii) hire any employee
of ATS (excluding sales and marketing employees), and ATS shall not, without the
prior written approval of CMI, directly or indirectly, (i) solicit, induce, or
attempt to solicit or induce any employee of CMI to leave CMI or (ii) hire any
employee of CMI (excluding sales and marketing employees), provided that a
general advertisement in the ordinary course of business shall not be deemed a
solicitation prohibited by this Section 2.9.

Article 3.0   IMPROVEMENTS; PATENTS

3.1 Sole Improvements. ATS shall own all right, title and interest in and to any
enhancements, developments or improvements ("Improvements") that ATS may
independently make related to or arising out of its use of the Licensed
Technology. ATS may, at its own expense, file one or more patent applications
for any Improvements in the United States or any


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foreign country. CMI shall own all right, title and interest in and to any
Improvements that CMI may independently make related to or arising out of its
use of the Licensed Technology.

3.2 Joint Improvements. The parties shall co-own any right, title and interest
in and to any Improvements that are jointly made related to or arising out of
ATS' use of the Licensed Technology. The parties shall mutually agree which
party shall file any patent applications for such jointly discovered
Improvements and the allocation of the expenses therefor. Each party may
independently exploit any such co-owned Improvement without accounting to the
other party but may, by separate written agreement, license or sell some or all
of its rights therein to the other party.

3.3 CMI Retained Rights. Notwithstanding the foregoing, ATS shall not own any
right, title or interest in, and may not file any patent application on, the
Licensed Technology itself or any part of it.

3.4 License of Rights.

         (a)      If ATS elects not to file or to discontinue the prosecution or
                  maintenance of any patent or patent application related to an
                  Improvement independently made by ATS, it shall give CMI
                  written notice thereof. CMI shall then have the right, but not
                  the obligation, to initiate or continue such prosecution or
                  maintenance at its own expense. If CMI elects to initiate or
                  continue such prosecution or maintenance, ATS shall assign
                  such patent or patent application to CMI, and CMI shall grant
                  to ATS a royalty-free, nonexclusive license for such
                  Improvement.Thereafter, CMI may continue such prosecution or
                  maintenance at its own expense, subject to the retained
                  license of ATS.

         (b)      If ATS elects not to file or to discontinue the prosecution or
                  maintenance of any patent or patent application related to a
                  jointly developed Improvement, ATS shall give CMI written
                  notice thereof. Upon ATS's written notice to CMI, CMI shall
                  then have the right, but not the obligation, to initiate or
                  continue such prosecution or maintenance at its own expense.
                  If CMI elects to initiate or continue such prosecution or
                  maintenance, ATS shall assign such patent or patent
                  application to CMI, and CMI shall grant to ATS a royalty-free,
                  nonexclusive license for such Improvement. Thereafter, CMI may
                  continue such prosecution or maintenance at its own expense,
                  subject to the retained license of ATS.

         (c)      If CMI elects not to file or to discontinue the prosecution or
                  maintenance of any patent or patent application related to an
                  Improvement independently made by CMI, CMI shall give ATS
                  written notice thereof. ATS shall then have the right, but not
                  the obligation, to initiate or continue such prosecution or
                  maintenance at its own expense. If ATS elects to initiate or
                  continue such prosecution or maintenance, CMI shall assign
                  such patent or patent application to ATS, and ATS shall grant
                  to CMI a royalty-free, nonexclusive license for such
                  Improvement.


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                  Thereafter, ATS may initiate or continue such prosecution or
                  maintenance at its own expense, subject to the retained
                  license of CMI.

         (d)      If CMI elects not to file or to discontinue the prosecution or
                  maintenance of any patent or patent application related to a
                  jointly developed Improvement, CMI shall give ATS written
                  notice thereof. Upon CMI's written notice to ATS, ATS shall
                  then have the right, but not the obligation, to initiate or
                  continue such prosecution or maintenance at its own expense.
                  If ATS elects to initiate or continue such prosecution or
                  maintenance, CMI shall assign such patent or patent
                  application to ATS, and ATS shall grant to CMI a royalty-free,
                  nonexclusive license for such Improvement. Thereafter, ATS may
                  continue such prosecution or maintenance at its own expense,
                  subject to the retained license of CMI.

Article 4.0   TERM AND TERMINATION

4.1 Commencement. This Agreement shall commence on the date first hereinabove
set forth and shall remain in effect unless and until terminated under Section
4.2, 4.3 or 4.4 below.

4.2 Termination for Material Breach. If either party breaches any material term
of this Agreement, the non-breaching party shall give written notice thereof to
the breaching party. In the event of such a breach by ATS, which breach is not
cured within ninety (90) days of such notice, then the rights and obligations of
the parties under this Agreement shall be suspended for a period of up to two
(2) years from the end of such ninety-day notice period (a "Suspension Period").
During a Suspension Period, Amendment No. 7 to the O.E.M. Supply Agreement shall
be suspended as well and the O.E.M. Supply Agreement as in effect immediately
prior to the signing of this Agreement shall be in full force and effect. If at
any time during a Suspension Period ATS is able to cure its default under this
Agreement, then the Suspension Period shall end and the rights and obligations
of the parties under this Agreement shall once again be in full force and effect
with appropriate adjustments made to the dates appearing herein to reflect the
suspension of the Agreement during the Suspension Period. If ATS is unable to
cure its default under this Agreement prior to the expiration of two (2) years
from the end of a ninety-day notice period, then this Agreement shall be
terminated, any installment payments of the License Fee previously made under
Section 2.5 may be retained by CMI and ATS shall reimburse CMI for all expenses
under Section 2.6 to the effective date of such termination.

In the event of such a breach by CMI, which breach is not cured within ninety
(90) days of ATS' notice of such breach, then CMI shall have one year during
which to cure such breach, provided that during such year the price paid by ATS
for Equivalent Valve Sets shall be that specified in Section 5(b)(ii)(A) of the
O.E.M. Supply Agreement as amended by Amendment No. 7. In the event that CMI is
unable to cure such breach prior to the satisfaction of the milestone described
in Section 2.5(5)(ii) of this Agreement, then the rights and obligations of the
parties under Sections 2.3 and 2.5 through 2.9 of this Agreement shall be
terminated, the license granted ATS under Section 2.1 shall be deemed fully
paid-up and irrevocable, any installment payments of the License Fee previously
made under Section 2.5 shall be refunded to ATS and ATS shall not be required to
reimburse CMI for any expenses not previously reimbursed under Section 2.6. In
the


                                       8



event that CMI is unable to cure such breach after the satisfaction of the
milestone described in Section 2.5(5)(ii) of this Agreement, then the rights and
obligations of the parties under Sections 2.3 and 2.5 through 2.9 of this
Agreement shall be terminated, the license granted ATS under Section 2.1 shall
be deemed fully paid-up and irrevocable, any installment payments of the License
Fee previously made under Section 2.5 shall not be refunded to ATS and ATS shall
reimburse CMI for all expenses under Section 2.6 incurred prior to the delivery
by ATS of such notice of breach.

4.3 Termination for ATS Insolvency. This Agreement may be terminated by CMI
effective immediately upon written notice (i) upon the institution by ATS of
insolvency, receivership or bankruptcy proceedings or any other proceedings for
the settlement of ATS' debts under United States or state law, (ii) upon the
institution against ATS of insolvency, receivership or bankruptcy proceedings or
any other proceedings for the settlement of ATS' debts under United States or
state law which proceeding is consented to or acquiesced in by ATS or shall
remain for 90 days undismissed, (iii) upon ATS' making an assignment for the
benefit of creditors, or (iv) upon ATS' dissolution or ceasing to do business.

4.4 Termination for ATS' Exit of the Mechanical Heart Valve Business. If ATS
determines to exit the mechanical heart valve business, then ATS may terminate
this Agreement at any time after the third anniversary of the date of this
Agreement by giving six (6) months written notice thereof to CMI. In the event
of such termination, the license granted under Section 2.1 shall be terminated,
CMI may retain any installment payments of the License Fee previously made under
Section 2.5 and ATS shall reimburse CMI for all expenses under Section 2.6 to
the effective date of termination.

4.5 Return of CMI Documentation. Upon termination of the license granted under
Section 2.1 pursuant to Section 4.2, 4.3 or 4.4, ATS shall promptly return or,
upon the written request by CMI, destroy any copies of the CMI Documentation
except for one (1) archival copy thereof as may be required to comply with
applicable FDA GMP/QSR requirements for any Licensed Product made and sold by
ATS. ATS shall give CMI a written certification of such return or destruction.

4.6 WIP and Inventory. In the event of a termination of the license granted
under Section 2.1 due to a breach by ATS under Section 4.2 or 4.4, ATS shall
make an orderly shut-down of the Production Line and sell or otherwise dispose
of such WIP and any finished Licensed Product in inventory.

Article 5.0   INFRINGEMENT

         If ATS has reason to believe that any letters patent licensed hereunder
to ATS are infringed by a third party, ATS shall immediately notify CMI of such
possible infringement, including the basis therefor. If, after 90 days, CMI
elects not to pursue an infringement action against the third party, ATS shall
have the right, but not the obligation, to prosecute any such action in the name
of CMI but at its own expense. If ATS elects to pursue such an infringement
action, CMI shall execute documents and render such cooperation to ATS as may be
reasonably


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requested, including agreeing to be named as a co-plaintiff if necessary to
establish standing to pursue such action. ATS shall retain all proceeds obtained
upon the conclusion or settlement of any such legal action undertaken at its own
expense. ATS shall, however, reimburse CMI for reasonable attorney's fees and
expenses incurred in providing such cooperation, including costs associated with
gathering and copying documents, and other costs associated with discovery. CMI
may also elect to participate in such action at its own expense.

Article 6.0   INDEMNIFICATION

6.1 Products Liability. ATS agrees to be solely responsible for and to defend
and indemnify CMI and to hold it harmless from any and all demands, claims,
causes of action, or damages including attorneys fees and expenses, arising out
of, resulting from or related to the use of Licensed Technology and any products
manufactured, sold or distributed by ATS. This obligation will survive
termination of this Agreement and will be applicable to all claims regardless of
the legal theory on which they are based including, but not limited to, claims
of negligence, breach of warranty, strict liability, and violation of statute or
government regulations.

6.2 Intellectual Property. CMI shall defend and indemnify ATS, its officers,
directors, employees and agents and hold the same harmless from any and all
demands, claims, causes of action, or damages (including reasonable attorneys
fees and expenses), arising from any claim(s) that the Licensed Technology (or
any portion thereof) infringes the intellectual property rights (including any
patent, copyright, trademark or trade secret) of any third party.

6.3 Injury or Death. CMI shall defend and indemnify ATS, its officers,
directors, employees and agents and hold the same harmless from any and all
demands, claims, causes of action, or damages (including reasonable attorneys
fees and expenses), arising out of, resulting from or related to any injury,
death or damage to property caused solely by the negligence, reckless conduct or
intentional misconduct of any CMI employee at the Site not including any claims
of product liability.

ATS shall defend and indemnify CMI, its officers, directors, employees and
agents and hold the same harmless from any and all demands, claims, causes of
action, or damages (including reasonable attorneys fees and expenses), arising
out of, resulting from or related to any injury, death or damage to property
caused solely by the negligence, reckless conduct or intentional misconduct of
any ATS employee at the Site.

6.4 Procedure. A party seeking indemnification ("Indemnified Party") under this
Article 6.0 shall give written notice thereof to the indemnifying party
("Indemnifying Party"), including the nature and extent of the legal claim
giving rise thereto. The Indemnified Party shall give such cooperation (at the
expense of the Indemnifying Party) as is reasonably requested by the
Indemnifying Party, which shall control the defense and settlement thereof in
its sole discretion. The Indemnified Party may participate in such legal action
at its own expense but shall not settle or compromise such action without the
written consent of the Indemnifying Party. If and to the extent that the legal
counsel selected by the Indemnifying Party is subject to a material conflict of
interest under the applicable rules of professional conduct in the defense of
both the


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Indemnifying Party and the Indemnified Party, the Indemnified Party shall not be
required to waive such conflict and the Indemnifying Party shall promptly engage
and pay for separate legal counsel to represent the Indemnified Party.

6.5 Survival. The indemnification obligations set forth in this Article 6.0
shall survive termination of this Agreement and will be applicable to all claims
regardless of the legal theory on which they are based including, but not
limited to, claims of negligence, breach of warranty, strict liability or
violation of any applicable statute or government regulation.

Article 7.0   NOTICES

7.1 Notices. Any notice to be given under this Agreement shall be sent by
personal delivery, delivery by a recognized courier service, electronically
confirmed facsimile, or certified mail, postage prepaid, to the following
addresses:

            CMI:              Sulzer Carbomedics, Inc.
                              1300 East Anderson Lane
                              Austin, Texas 78752
                              Attn.: President
                              Facsimile number: 512/435-3395

            With a copy to:   Sulzer Medical USA Inc.
                              3 East Greenway Plaza, Suite 1600
                              Houston, Texas 77046-0391
                              Attention: Vice President and General Counsel
                              Facsimile number: 713/561-6380

            ATS:              ATS Medical, Inc.
                              3905 Annapolis Lane
                              Minneapolis, Minnesota 55447
                              Attn.: President
                              Facsimile number: 612/553-1492

Any such notice given shall be effective upon its receipt by the notified party.

7.2 Change of Address. Either party may change its address by giving at least
ten (10) days prior written notice thereof to the other party.

Article 8.0   MISCELLANEOUS

8.1 Assignment. Neither party may assign or sublicense this Agreement without
the prior written consent of the other party, which consent may be withheld
absolutely in the other party's sole discretion. Notwithstanding, either party
may freely assign this Agreement to any entity controlling, controlled by or
under common control with such party or in connection with the acquisition of
such party or all or substantially all of that portion of its business or assets
to


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which this Agreement pertains, provided, in such case, the acquiring party
agrees in writing to be bound by all the terms and conditions hereof and gives
notice thereof to the non-acquired party.

8.2 Confidentiality. The Licensed Technology is the confidential and proprietary
property of CMI. ATS shall hold the Licensed Technology in confidence and shall
afford it the same protection that ATS uses for protecting its own confidential
and proprietary information ("ATS Information"). In the course of establishment
and operation of the Production Line, ATS may also disclose certain ATS
Information to CMI, and CMI shall hold any ATS Information in confidence and
shall afford it the same protection that CMI uses for protecting its own
confidential and proprietary information. Notwithstanding the foregoing, the
following shall not be considered confidential and proprietary information of
either party: (a) information which is in the public domain through no fault or
inaction of the receiving party; (b) information already known to the receiving
party without obligation to the disclosing party and prior to its receipt from
the disclosing party; (c) information independently developed by the receiving
party without the use or or reliance on any confidential and proprietary
information from the disclosing party; or (d) information which is required to
be disclosed by law.

8.3 Whole Agreement; Amendment. This Agreement contains the entire agreement
between the parties with respect to the subject matter hereof. No waiver,
alteration or modification of any of the provisions hereof shall be binding
unless in writing and signed by the parties hereto. No waiver shall be implied
or continuing.

8.4 Relationship. Nothing in this Agreement shall be deemed or construed to
constitute or create between the parties a partnership, joint venture or agency.

8.5 Headings. The headings or captions of the paragraphs of this Agreement are
inserted for convenience only and shall not be deemed a part hereof or used in
the construction or interpretation hereof.

8.6 Governing Law. This Agreement shall be governed by the laws of the State of
Texas, excluding its choice of law rules.

8.7 Legal Effect. If any provision of this Agreement is rendered unlawful or
invalid because of any existing or subsequently enacted law or by a decree or
order of a court of last resort, the remaining provisions shall continue in full
force and effect and shall be interpreted to achieve the original purpose of the
parties to the maximum extent possible.

8.8 Attorneys Fees. If a legal action is initiated by either party regarding the
interpretation or enforcement of this Agreement, the prevailing party therein
shall be entitled to its reasonable attorneys fees and costs.

8.9 Option Agreement. The Option Agreement dated September 24, 1990, as amended
December 16, 1993, between the parties hereto shall terminate effective as of
the execution of this Agreement.


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8.10 Public Announcement. Neither CMI nor ATS will make any public announcement
or disclosure regarding this Agreement without the prior consent of the other
party, except any such announcement or disclosure that may be required by rule,
regulation or law, in which case the party required to make the announcement or
disclosure will, if reasonably practicable, allow the other party at least 24
hours to comment on such announcement or disclosure in advance thereof.

         IN WITNESS WHEREOF, the undersigned have caused this Agreement to be
executed and delivered as of the date first hereinabove set forth.


SULZER CARBOMEDICS, INC.                    ATS MEDICAL, INC.


By: /s/ Terry Marlatt                       By: /s/ Richard W. Kramp
    --------------------------------            --------------------------------
    Terry Marlatt, President                    Richard W. Kramp,
                                                President/COO


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