THERMO CARDIOSYSTEMS INC
10-K, 2000-03-17
ELECTROMEDICAL & ELECTROTHERAPEUTIC APPARATUS
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                                    SECURITIES AND EXCHANGE COMMISSION
                                           WASHINGTON, DC 20549
                           ----------------------------------------------------

                                                FORM 10-K

(mark one)
[ X ] Annual Report Pursuant to Section 13 or 15(d) of the Securities
      Exchange Act of 1934 for the fiscal year ended January 1, 2000

[   ] Transition Report Pursuant to Section 13 or 15(d) of the Securities
      Exchange Act of 1934

                                      Commission file number 1-10114

                                        THERMO CARDIOSYSTEMS INC.
                          (Exact name of Registrant as specified in its charter)

Massachusetts                                       04-3027040
(State or other jurisdiction of
incorporation or organization)        (I.R.S. Employer Identification No.)

470 Wildwood Street, P.O. Box 2697
Woburn, Massachusetts                               01888-2697
(Address of principal executive offices)            (Zip Code)

           Registrant's telephone number, including area code: (781) 622-1000

           Securities registered pursuant to Section 12(b) of the Act:

     Title of each class               Name of each exchange on which registered
Common Stock, $.10 par value                    American Stock Exchange

           Securities registered pursuant to Section 12(g) of the Act:
                                None

Indicate by check mark whether the Registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months, and (2) has been subject to the filing requirements for
at least the past 90 days. Yes [ X ] No [ ]

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of the Registrant's knowledge, in definitive proxy or information
statements incorporated by reference into Part III of this Form 10-K or any
amendment to this Form 10-K. [ ]

The aggregate market value of the voting stock held by nonaffiliates of the
Registrant as of January 28, 2000, was approximately $142,902,000.

As of January 28, 2000, the Registrant had 38,476,461 shares of Common Stock
outstanding.

                       DOCUMENTS INCORPORATED BY REFERENCE

Portions of the Registrant's Annual Report to Shareholders for the year ended
January 1, 2000, are incorporated by reference into Parts I and II.

Portions of the Registrant's definitive Proxy Statement for the Annual Meeting
of Shareholders to be held on May 25, 2000, are incorporated by reference into
Part III.

<PAGE>
                                                  PART I

Item 1.  Business

(a)   General Development of Business

      Thermo Cardiosystems Inc. (the Company or the Registrant) develops,
manufactures, and markets products in two segments: Left Ventricular-assist
Systems (LVAS) and Other Medical Equipment. The LVAS is an implantable
heart-assist device that is designed to perform substantially all or part of the
pumping function of the left ventricle of the natural heart for patients
suffering from cardiovascular disease. The Company has developed two systems for
patients requiring cardiac support: an implantable pneumatic LVAS that is
powered by an external electrically driven air-pump, and an electric LVAS that
is driven by an implanted electric motor and powered by a lightweight battery
pack worn by the patient.

      In October 1994, the Company announced that the U.S. Food and Drug
Administration (FDA) had granted approval for the commercial sale of the
air-driven LVAS for use as a bridge to transplant. The electric LVAS was granted
the same approval by the FDA in September 1998. With these approvals, the
air-driven and electric systems became available for sale to cardiac centers
throughout the United States. In August 1998, the Medical Devices Bureau of
Health Canada issued a Notice of Compliance for the Company's HeartMate LVAS,
permitting the sale of both the air-driven and electric versions throughout
Canada. Health Canada, through its Medical Devices Bureau, is the federal
department responsible for ensuring that the drugs, medical devices, and other
therapeutic products available in Canada are safe, effective, and of high
quality. The Company's air-driven LVAS received the European Conformity Mark (CE
Mark) required for commercial sale of medical devices in all European Community
countries in April 1994, and received the same marking for the electric system
in August 1995. In late 1995, the FDA approved the protocol for conducting
clinical trials of the electric LVAS as an alternative to medical therapy, and
in April 1996, the first patient was implanted with an electric LVAS under this
trial. In December 1997, the FDA approved the Company's proposal to broaden the
entrance criteria and increase the number of participating sites under this
trial. The electric LVAS is being used in Europe as both a bridge to transplant
and as an alternative to medical therapy.

      The Company's Nimbus Medical Inc. subsidiary has been involved in
artificial heart technology for over 20 years and has carried out research in
two primary fields: ventricular-assist devices and total artificial hearts.
Nimbus was instrumental in developing the basic technology for high-speed rotary
blood pumps. Because of their smaller size, rotary blood pumps may potentially
be used to provide cardiac support in small adults and in children.

      The Company's Other Medical Equipment segment consists of International
Technidyne Corporation. On May 2, 1997, the Company acquired International
Technidyne Corporation from Thermo Electron Corporation in exchange for
3,355,705 shares of the Company's common stock. International Technidyne is a
leading manufacturer of near-patient, whole-blood coagulation testing equipment
and related disposables, and also manufactures premium-quality, single-use,
skin-incision devices.

      The Company was incorporated in Massachusetts in 1988 as a wholly owned
subsidiary of Thermedics Inc., a publicly traded subsidiary of Thermo Electron,
and is the successor in interest to the assets and business of that company
relating to the research and development of implantable heart-assist systems.
This business was conducted by Thermedics from its formation in 1983, and prior
to that time as a division of Thermo Electron beginning in 1966. As of January
1, 2000, Thermedics owned 23,113,317 shares of the Company's common stock,
representing 60% of such stock outstanding. In addition to the Company's
products, Thermedics develops, manufactures, and markets electrochemistry and
microweighing products, product on-line quality-assurance systems, instruments
to test electronics and semiconductors and a range of power products, and
security devices. Thermedics is a 76%-owned subsidiary of Thermo Electron. As of
January 1, 2000, Thermo Electron owned 15,976 shares of the Company's common
stock, representing less than 1% of such stock outstanding. Thermo Electron and
Thermedics may purchase shares of the Company's common stock from time to time
in the open market or in negotiated transactions. During 1999*,
- -------------------
* References to 1999, 1998, and 1997 herein are for the fiscal years ended
  January 1, 2000, January 2, 1999, and January 3, 1998, respectively.



                                       2
<PAGE>
Thermo Electron purchased 25,000 shares of the Company's common stock for $0.2
million. Thermo Electron develops, manufactures, and sells measurement and
detection instruments used in virtually every industry to monitor, collect, and
analyze data that provide knowledge for the user. For example, Thermo Electron's
powerful analysis technologies help researchers sift through data to unlock the
mysteries of DNA or develop new drugs; allow manufacturers to fabricate
ever-smaller components required to carry greater amounts of information,
faster; or monitor and control industrial processes on-line to ensure that
critical quality standards are met efficiently.

      On January 31, 2000, Thermo Electron announced that it plans to sell the
Company. This action is part of a major reorganization plan under which Thermo
Electron will spin in, spin off, and sell various businesses to focus solely on
its core measurement and detection instruments business.

Forward-looking Statements

      Forward-looking statements, within the meaning of Section 21E of the
Securities Exchange Act of 1934, are made throughout this Annual Report on Form
10-K. For this purpose, any statements contained herein that are not statements
of historical fact may be deemed to be forward-looking statements. Without
limiting the foregoing, the words "believes," "anticipates," "plans," "expects,"
"seeks," "estimates," and similar expressions are intended to identify
forward-looking statements. There are a number of important factors that could
cause the results of the Company to differ materially from those indicated by
such forward-looking statements, including those detailed under the heading
"Forward-looking Statements" in the Registrant's 1999 Annual Report to
Shareholders, which statements are incorporated herein by reference.

(b)   Financial Information About Segments

      Financial information concerning the Company's segments is summarized in
Note 11 to Consolidated Financial Statements in the Registrant's 1999 Annual
Report to Shareholders, which information is incorporated herein by reference.

(c)   Description of Business

      (i)   Principal Products and Services

Left Ventricular-assist Systems

      The Company began its research and development work in cardiac-support
systems in 1966. Since that time, the Company and its predecessors have received
more than $37.0 million in funding from the U.S. government, principally from
the National Heart, Lung, and Blood Institute of the National Institutes of
Health (NIH), to support its research. This funding ended in 1992 as the Company
moved from development to clinical trials.

      Federal regulations require that the Company obtain an investigational
device exemption (IDE) from the FDA to conduct testing in humans. Once
sufficient testing has been completed to demonstrate the safety and
effectiveness of the LVAS, the Company submits a premarket approval (PMA)
application to the FDA. PMA supplements must be submitted and approved for each
type and application of the Company's LVAS before being sold commercially (see
"Government Regulation").

      The human heart contains two main pumping chambers: the left and right
ventricles. The right ventricle pumps blood into the lungs, where it is
oxygenated. The blood then flows into the left ventricle, where it is pumped
throughout the body. The Company's LVAS devices support substantially all or
part of the pumping function of the left ventricle.

                                       3
<PAGE>
      The Company has developed two versions of its LVAS: an implantable
pneumatic, or air-driven, system that can be controlled by either a bedside or
portable console; and an electric system that features an internal electric
motor powered by an external battery pack worn by the patient. Both of the
Company's systems employ the Company's HeartMate(R) blood pump, and are designed
for long-term use. This pump is implanted just below the diaphragm in a position
that minimizes interference with normal circulation and other bodily functions.
An inlet tube is inserted into the apex of the left ventricle to drain blood
into the pump chamber. Blood is then forced out of the pump through an animal
tissue valve and back into the aorta. The HeartMate blood pump works with the
biological control mechanism of the natural heart to increase pumping capability
when required for activities such as climbing stairs. The Company's LVAS devices
are at various stages of regulatory approval.

      This segment also includes the Company's Nimbus Medical Inc. subsidiary,
acquired in 1996. Nimbus was instrumental in developing the basic technology for
high-speed rotary blood pumps, which is the basis for the HeartMate II, the next
generation of the Company's LVAS. Because of its smaller size, the HeartMate II
may potentially be used to provide cardiac support in small adults and in
children.

      Air-driven LVAS. In October 1994, the FDA approved the air-driven system
as a bridge to transplant for patients awaiting heart transplantation. This
approval allows the Company to sell the air-driven LVAS to any of the nearly 900
cardiac surgery centers in the United States. In April 1994, the Company
received the CE Mark for commercial sale of the air-driven LVAS in all European
Community countries. In August 1998, the Medical Devices Bureau of Health Canada
issued a Notice of Compliance for the Company's air-driven HeartMate LVAS,
permitting its sale throughout Canada. In the air-driven LVAS, the HeartMate
blood pump is coupled to an external console connected to the body by a tube.
The Company has also developed the HeartPak(TM), a lightweight portable console
that can be carried over the shoulder. The portable console received the CE Mark
for commercial sale in European Community countries in February 1995. In July
1995, the FDA approved the beginning of clinical trials of the HeartPak portable
pneumatic driver, and the Company began evaluating the safety of the system in
the hospital. In June 1999, the FDA approved the Company's request to begin
evaluating the HeartPak in the home environment. With this approval, patients in
the trial may be discharged routinely.

      Electric LVAS. The Company has also developed an electric LVAS that uses
the HeartMate blood pump driven by an internal electric motor mounted in the
blood pump housing. The system is connected to its external battery pack by
wires that exit the body. Since the power source and control elements are worn
on a battery belt, the system allows the patient complete mobility. In August
1995, the electric LVAS received the CE Mark, allowing commercial sale of this
system in all European Community countries. The electric system is used as a
bridge to transplant in the United States, Europe, and other regions, and is
also implanted as an alternative to heart transplant in Europe and other
regions. In August 1998, the Medical Devices Bureau of Health Canada issued a
Notice of Compliance for the Company's electric HeartMate LVAS, permitting its
sale throughout Canada. In September 1998, the FDA approved the electric system
for commercial sale as a bridge to transplant for patients awaiting heart
transplantation.

      In December 1995, the FDA approved the protocol for conducting clinical
trials of the electric LVAS as an alternative to medical therapy. The trial is
expected to compare the results of approved patients using the device to a
similar number using drug therapy. In December 1997, the FDA approved the
Company's proposal to broaden the entrance criteria and increase the number of
participating sites under this trial. The Company estimates that it will
complete this trial in two to three years; however, no assurance can be given
that the Company will complete this study in this time period or at all, or that
it will receive FDA approval after the trial or at all.


                                       4
<PAGE>
Other Medical Equipment

      The Company's Other Medical Equipment segment consists of International
Technidyne, which manufactures and supplies whole-blood coagulation testing
equipment and related disposables, as well as premium-quality, single use,
skin-incision devices.

      Whole-blood coagulation testing equipment. International Technidyne's
HEMOCHRON(R) and HEMOCHRON Jr. Signature product lines offer whole-blood
coagulation systems for bedside anticoagulation management, coagulation
screening, and transfusion management. Each analyzes small blood samples, then
processes and quickly displays comprehensive patient hemostasis information.
Blood management of this type is essential for cardiopulmonary bypass surgery
and angioplasty. HEMOCHRON models are designed for use in a clinical setting at
the patient's bedside. They are lightweight, battery-operated, portable, and
some provide data-management features.

      The ProTime(R) Microcoagulation System is designed to allow testing for
patients who take the blood-thinning drug Warfarin (Coumadin). The system
consists of a hand-held instrument, a five-channel cuvette, and a
finger-incision device. These tests are performed in a doctor's office, clinic,
or by the patients themselves.

      Skin-incision devices. International Technidyne manufactures a family of
single-use skin-incision devices for drawing blood from adults, children, and
infants. Each employs International Technidyne's patented skin-incision
technology to provide a standardized surgical incision. International
Technidyne's line of Surgicutt(R) products are used to perform bleeding-time
tests on adults, children, and newborns. International Technidyne's
Tenderlett(R) finger-incision products for blood sampling are available in
models suitable for adults, children, and infants and toddlers. Tenderfoot(R) is
a heel-incision device that is designed specifically for toddlers, infants, and
premature infants. These devices feature a permanently retractable blade to
ensure safety for the patient and healthcare worker.

Government Regulation

      The Company's products and its research, development, and manufacturing
activities are subject to regulation by numerous governmental authorities in the
United States and other countries. In the United States, medical devices are
subject to rigorous FDA review. The Federal Food, Drug, and Cosmetic Act (the
FDC Act), the Public Health Services Act, and other federal statutes and
regulations govern or influence the testing, manufacture, safety, labeling,
storage, record keeping, reporting, approval, advertising, and promotion of
products such as those offered by the Company. Noncompliance with applicable
requirements can result in fines, recalls or seizures of products, total or
partial suspension of production, and/or criminal prosecution.

      Pursuant to the Medical Device Amendments of 1976 to the FDC Act, and
regulations promulgated thereunder, medical devices intended for human use are
classified into three categories (Classes I, II, and III), which are subject to
varying degrees of regulatory control.

      The Company's LVAS is classified as a Class III medical device under the
FDC Act, the classification generally given to life-sustaining or implantable
devices. Class III devices require clinical testing to ensure safety and
effectiveness. The first stage of obtaining formal FDA market approval for a
Class III device is submission of an application for an IDE. The IDE application
must be supported by data, typically including the results of animal and
mechanical testing. If approved, the IDE permits clinical evaluations of
significant risk devices on human subjects under controlled experimental
conditions by designated qualified medical institutions. To obtain an IDE for a
Class III device, approval of the investigational plan for the applicable system
is required from the institutional review board within each participating
medical institution as well as from the FDA.

      The second stage of formal FDA market approval is the PMA application,
which is submitted after sufficient data have been compiled under the IDE. The
FDA will grant market approval if it finds that the safety and effectiveness of
the product has been sufficiently demonstrated, and that the product complies
with all applicable

                                       5
<PAGE>
performance and manufacturing standards. In addition, any design change to an
approved device must be approved by the FDA pursuant to a supplement to the
applicable PMA application. The process of submitting and obtaining FDA approval
of a PMA application can take several years or more, and is inherently
uncertain. No assurance can be given that any of the products under development
by the Company currently or in the future, will be approved by the FDA for
commercial sale.

      The Company is also subject to the FDA's Quality System (QS) regulations.
These regulations require that the Company manufacture its systems and maintain
its records in accordance with current Good Manufacturing Practice (GMP). The
FDA inspects the Company's facilities for compliance with GMP. If the Company is
found not to be in compliance, the FDA has broad powers to issue recalls, enjoin
future violations, and assess civil and criminal penalties against the Company,
its officers, and its employees. In addition to the QS regulations, the Company
must adhere to quality standards applicable to European Community member
countries and other countries where the Company sells its systems. The Company
is also subject to registration and inspection requirements of state regulatory
agencies.

      Sales of medical devices outside the United States are subject to foreign
regulatory requirements that vary widely from country to country. Whether or not
FDA approval has been obtained, approval of a device by a comparable regulatory
authority of a foreign country generally must be obtained prior to the
commencement of marketing in those countries. The time required to obtain such
approvals may be longer or shorter than that required for FDA approval.

      No FDA approval is required to export a device that is legally marketed in
the United States by the exporting company. Unapproved Class III devices may
also be exported without FDA approval to any country if the device complies with
the law of that country and has valid marketing authorization in at least one of
the following: Australia, Canada, Israel, Japan, New Zealand, Switzerland, South
Africa, or the European Union or a country in the European Economic Area (listed
countries). Similarly, no FDA approval is required to export an investigational
device to a listed country as long as the proposed investigational use is in
accord with the importing country's laws. However, FDA approval is required to
export an unapproved Class III device that does not have marketing authorization
in one of the listed countries or to export an investigational device to a
nonlisted country. In such cases, the FDA must determine that exportation of the
unapproved or investigational device is not contrary to the public health and
safety and has the approval of the country to which it is intended for export.

      A majority of International Technidyne's products are regulated by the FDA
as Class II medical devices. International Technidyne is also subject to
regulatory requirements in foreign countries in which it markets its devices.

Third-party Reimbursement

      In November 1995, the U.S. Health Care Finance Administration (HCFA)
issued a decision that extended Medicare coverage to the Company's HeartMate
air-driven LVAS when used as a bridge to transplant. Subsequently, HCFA
broadened its decision to include all FDA-approved ventricular-assist systems
used as a bridge to transplant, which extended coverage to the Company's
electric LVAS. Part of the U.S. Department of Health and Human Services, HCFA is
responsible for establishing coverage and reimbursement policies for Medicare
and recommending guidelines for Medicaid. Many third-party payors review HCFA
recommendations to establish their own reimbursement policies. In addition, most
major nongovernment insurers have already agreed to offer coverage for the
air-driven LVAS, and many are revising their coverage policies to include the
electric LVAS device.

      HCFA requires that Diagnosis Related Groups (DRGs) be used in determining
the amount of reimbursement for particular procedures. HCFA has classified LVAS
implantation in a DRG that includes several other cardiac-related procedures. In
October 1998, HCFA reclassified LVAS implementation to a slightly higher-paying
DRG. Additionally, the HCFA coding committee has established a detailed resource
code to be used when an implantable assist device, such as the HeartMate LVAS,
is employed. This will facilitate collection of data on medical costs as well as
resource information that may be used in establishing a DRG specific to
ventricular-assist systems.


                                       6
<PAGE>
      Sales of the Company's devices and systems will depend to a large degree
upon the availability of reimbursement for the implantation of the devices. Even
though reimbursement has been established by HCFA and by several nongovernment
insurers for the Company's LVAS devices, the amount of available reimbursement
may change, and reimbursement may be denied by an insurer under certain
circumstances, including determination that a procedure was not the most
cost-effective treatment method, was experimental, or was used for an unapproved
indication. No assurance can be given that additional third-party reimbursement
for the HeartMate LVAS will be granted within a reasonable period of time, or at
all, and the Company cannot predict what effect the future policies of
government entities and insurers will have on the sale of the Company's devices.
The unavailability of third-party reimbursement for procedures involving the
Company's devices and systems would have a material adverse effect on the
Company's business.

      (ii) and (xi) New Products; Research and Development

      The Company's business includes the research and development of new
products (See "Principal products and services"). Research and development
expenses for the Company were $15,631,000, $10,929,000, and $8,682,000 in 1999,
1998, and 1997, respectively, for internally sponsored research and development
programs.

      (iii)Raw Materials

      Certain raw materials used in the manufacture of the Company's LVAS are
available from only one or two suppliers. The Company is making efforts to
minimize the risks associated with sole sources and ensure long-term
availability, including qualifying alternative materials and components or
developing alternative sources for materials and components supplied by a single
source. Although the Company believes that it has adequate supplies of materials
and components to meet demand for the LVAS for the foreseeable future, no
assurance can be given that the Company will not experience shortages of certain
materials or components in the future that could delay shipments of the LVAS.

      The cost to the Company to evaluate and test alternative materials and
components and the time necessary to obtain FDA approval for these materials or
components are inherently difficult to determine because both time and cost are
dependent on at least two factors: the similarity of the alternative materials
or components to the original materials or components, and the amount of
third-party testing that may have already been completed on alternative
materials or components. There can be no assurance that the substitution of
alternative materials or components will not cause delays in the Company's LVAS
development program or adversely affect the Company's ability to manufacture and
ship LVAS to meet demand.

      (iv) Patents, Licenses, and Trademarks

      The Company's policy is to protect its intellectual property rights
relating to its work on cardiac-support systems including, if appropriate,
applying for patents in the United States and foreign countries. Thermedics has
granted the Company a royalty-free license to use the Dermaport(R) access device
and Tecoflex(R) biomaterial in its LVAS. Although some of these patent rights
may provide the Company with a competitive advantage, the Company primarily
relies on its know-how and trade secrets developed over 30 years of research,
development, and fabrication of cardiac-assist devices. The Company has received
correspondence from a third party alleging that the textured surface of the LVAS
housing infringes certain patent rights of such third party. In general, an
owner of intellectual property can prevent others from using such property
without a license and is entitled to damages for unauthorized usage. The Company
has investigated the bases of the allegation and, based on the opinion of its
counsel and the Company's assessment of the proceedings in the United States
Patent and Trademark Office to date, it believes that if it were sued on these
bases, it would have meritorious defenses. Given the inherent uncertainties in
dispute resolution, however, if the Company were sued and the outcome were
unfavorable, the Company's results of operations or financial condition could be
materially adversely affected in amounts the Company cannot reasonably estimate.
The Company seeks to protect its proprietary information, but there can be no
assurance that others will neither develop independently the same or similar
information nor obtain access to information that the Company believes is
proprietary. Moreover, there can be no assurance that others will not claim that
the Company's activities infringe their intellectual property rights.


                                       7
<PAGE>
      In August 1998, the Company obtained an exclusive license to incorporate
technology developed by Sulzer Electronics Ltd. into an advanced version of the
Company's LVAS, HeartMate III. Sulzer Electronics Ltd., based in Switzerland, is
a company within the Sulzer Corporation. HeartMate III is a miniature
centrifugal pump featuring a magnetically controlled system that has been
developed by Sulzer Electronics' Magnetics Group.

      (v)   Seasonal Influences

      There are no significant seasonal influences on the Company's sales of its
products and services.

      (vi)  Working Capital Requirements

      There are no special inventory requirements or credit terms extended to
customers that would have a material adverse effect on the Company's working
capital.

      (vii) Dependency on a Single Customer

      Revenues from Allegiance Health Care accounted for 21% and 22% of the
Company's total revenues in 1999 and 1998, respectively. The loss of this
customer would have a material adverse impact on the Company.

      (viii)Backlog

      The Company's backlog of firm orders at year-end 1999 and 1998 was:
<TABLE>
<CAPTION>
<S>                                                                                         <C>      <C>
(In thousands)                                                                              1999     1998
- ---------------------------------------------------------------------------------------- -------- --------

Left Ventricular-assist Systems                                                           $  315   $ 1,678
Other Medical Equipment                                                                      253       140
                                                                                          ------   -------

                                                                                          $  568   $ 1,818
                                                                                          ======   =======

      Certain of these orders are cancelable by the customer upon payment of a
cancellation charge. The Company expects that all of its backlog at January 1,
2000, will be shipped or completed during 2000. The decrease in the 1999 backlog
compared with 1998 is primarily a result of the anticipation of increased LVAS
sales following FDA approval, which was granted in September 1998, as well as
the expiration of several government contracts at Nimbus. The Company does not
believe the size of its backlog is necessarily indicative of intermediate or
long-term trends in its business.

      (ix)  Government Contracts

      Less than 10% of the Company's total revenues in 1999, 1998, and 1997 were
derived from contracts or subcontracts with the federal government, which are
subject to renegotiation of profits or termination. The Company does not have
any knowledge of threatened or pending renegotiations or terminations.

      (x)   Competition

Left Ventricular-assist Systems

      The Company is aware of one other company, Baxter Healthcare Corporation,
that has received PMA approval from the FDA for an implantable LVAS similar to
the Company's. Also, the Company is aware of one other company, Thoratec
Laboratories Corporation, that has received commercial approval from the FDA for
its cardiac-assist device. This is an external device, positioned on the outside
of the patient's chest, and is intended for short-term use in the hospital
environment. In November 1998, this company announced that it had received
approval from the


                                       8
<PAGE>
FDA for its IDE for a portable power source. In addition, the Company is aware
that a total artificial heart is currently undergoing clinical trials. The
Company is aware that other cardiac-assist devices are in various stages of
development by other companies. The requirement of obtaining FDA approval for
commercial sale of an LVAS in the United States is a significant barrier to
entry into the United States market for these devices. There can be no
assurance, however, that FDA regulations will not change in the future, reducing
the time and testing required for others to obtain FDA approval for commercial
sale. In addition, other research groups and companies, some that have
significantly greater resources than those of the Company, are developing
cardiac systems using alternative technologies or concepts, one or more of which
might prove functionally equivalent to, or more suitable than, the Company's
systems. Among products that have been approved for commercial sale, the Company
competes primarily on the basis of performance, service capability, and price.
Competition in the market for medical devices is also significantly affected by
the reimbursement policies of government and private insurers. Any product for
which reimbursement is not available from such third-party payors will be at a
significant competitive disadvantage.

Other Medical Equipment

      International Technidyne's principal competitor for the HEMOCHRON
coagulation monitoring instruments, used in the operating room and in cardiac
catheterization, is the HemoTec division of Medtronic. The Roche Group competes
with the ProTime with a blood coagulation monitor that is marketed to clinics
and also is used for patient self-testing. There are also several new
competitors that have recently entered the blood coagulation monitoring market.
International Technidyne's products compete primarily on the basis of
reputation, utility, and price.

      The Company's skin-incision devices compete with products offered by a
number of companies, including Organon Teknika; Becton, Dickinson and Company;
and Owen-Mumford. The Company's skin-incision devices compete primarily on the
basis of safety, quality, and reputation.

      (xii)    Environmental Protection Regulations

      The Company believes that compliance by the Company with federal, state,
and local environmental protection regulations will not have a material adverse
effect on its capital expenditures, earnings, or competitive position.

      (xiii)   Number of Employees

      As of January 1, 2000, the Company had a total of approximately 500
employees. None of the Company's employees are represented by a labor union, and
the Company considers its relations with its employees to be good.

(d)   Financial Information About Geographic Areas

      Financial information about geographic areas is summarized in Note 11 to
Consolidated Financial Statements in the Registrant's 1999 Annual Report to
Shareholders, which information is incorporated herein by reference.
</TABLE>

(e)   Executive Officers of the Registrant
<TABLE>
<CAPTION>
<S>     <C>                        <C>   <C>
        Name                       Age   Present Title (Fiscal Year First Became Executive Officer)
        ------------------------- ------ -----------------------------------------------------------

        R. Michael Kleine          46    Chief Executive Officer (1998)
        Victor L. Poirier          58    President (1991) and Chief Technical Officer (1999)
        Timothy J. Krauskopf       38    Vice President, Regulatory Affairs and Quality Assurance (1995)
        Theo Melas-Kyriazi         40    Chief Financial Officer (1998)
        Paul F. Kelleher           57    Chief Accounting Officer (1988)


                                       9
<PAGE>
      Each executive officer serves until his or her successor is chosen or
appointed by the Board of Directors and qualified or until earlier resignation,
death, or removal. Prior to joining the Company in November 1998, Mr. Kleine was
the President and Chief Executive Officer of Sorin Biomedical from 1997 to 1998,
a manufacturer and distributor of cardiopulmonary equipment. Prior to his
employment at Sorin Biomedical, Mr. Kleine held a number of management positions
from 1994 to 1997 at Bird Medical Technologies Inc., a wholly owned subsidiary
of Thermo Electron, where he most recently served as President. Prior to his
employment at Bird Medical Technologies Inc., he served as Vice President of
Sales, North America from 1993 to 1994 at Baxter International, Bentley
Division. Mr. Poirier has been the President of the Company since 1991 and was
appointed Chief Technical Officer in 1999, and devotes substantially all of his
time to the affairs of the Company, but also devotes a portion of his time to
the affairs of Thermedics. Mr. Krauskopf was previously Director of Regulatory
Affairs of the Company from 1993 to 1995. Mr. Melas-Kyriazi was appointed Chief
Financial Officer of the Company and Thermo Electron on January 1, 1999. He
joined Thermo Electron in 1986 as Assistant Treasurer, and became Treasurer in
1988. He was named President and Chief Executive Officer of ThermoSpectra
Corporation, a public subsidiary of Thermo Instrument Systems Inc., in 1994. In
1998, he became Vice President of Corporate Strategy for Thermo Electron. Mr.
Melas-Kyriazi remains a Vice President of Thermo Electron. Mr. Kelleher has been
a Chief Accounting Officer of the Company and Thermo Electron since 1988.
Messrs. Melas-Kyriazi and Kelleher are full-time employees of Thermo Electron,
but devote such time to the affairs of the Company as the Company's needs
reasonably require.

Item 2.  Properties

      The Company believes that its facilities are in good condition and are
adequate for its present operations and that suitable alternative space is
readily available if any leases are not extended. The location and general
character of the Company's properties by industry segment as of January 1, 2000,
are as follows:

Left Ventricular-assist Systems

      The Company subleases approximately 34,000 square feet of space in
Thermedics' corporate headquarters in Woburn, Massachusetts, pursuant to a
sublease expiring in 2004. The Company also subleases approximately 12,000
square feet of office and research facilities in Chelmsford, Massachusetts, from
Thermedics Detection Inc., a publicly traded, majority-owned subsidiary of
Thermedics, under a lease expiring in 2000. In addition, the Company occupies
approximately 11,000 square feet of office and research facilities in Rancho
Cordova, California, pursuant to a lease expiring in 2002.

Other Medical Equipment

      The Company owns approximately 66,000 square feet and leases approximately
29,000 square feet of office, manufacturing, and research facilities in Edison,
New Jersey, under a lease expiring in 2002. In addition, the Company leases
approximately 1,000 square feet of office space in the United Kingdom, under a
lease expiring in December 2000.

Item 3.  Legal Proceedings

      Not applicable.

Item 4.  Submission of Matters to a Vote of Security Holders

      Not applicable.


                                       10
<PAGE>
                                     PART II

Item 5.  Market for Registrant's Common Equity and Related Stockholder Matters

      Information concerning the market and market price for the Registrant's
common stock, $.10 par value, and dividend policy is included under the sections
labeled "Common Stock Market Information" and "Dividend Policy" in the
Registrant's 1999 Annual Report to Shareholders and is incorporated herein by
reference.

Item 6.  Selected Financial Data

      The information required under this item is included under the sections
labeled "Selected Financial Information" and "Dividend Policy" in the
Registrant's 1999 Annual Report to Shareholders and is incorporated herein by
reference.

Item 7.  Management's Discussion and Analysis of Financial Condition and Results
         of Operations

      The information required under this item is included under the caption
"Management's Discussion and Analysis of Financial Condition and Results of
Operations" in the Registrant's 1999 Annual Report to Shareholders and is
incorporated herein by reference.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

      The information required under this item is included under the caption
"Management's Discussion and Analysis of Financial Condition and Results of
Operations" in the Registrant's 1999 Annual Report to Shareholders and is
incorporated herein by reference.

Item 8.  Financial Statements and Supplementary Data

      The Registrant's Consolidated Financial Statements as of January 1, 2000,
and Supplementary Data are included in the Registrant's 1999 Annual Report to
Shareholders and are incorporated herein by reference.

Item 9.  Changes in and Disagreements with Accountants on Accounting and
         Financial Disclosure

      Not applicable.


                                       11
<PAGE>
                                   PART III

Item 10.   Directors and Executive Officers of the Registrant

      The information concerning directors required under this item is
incorporated herein by reference from the material contained under the caption
"Election of Directors" in the Registrant's definitive proxy statement to be
filed with the Securities and Exchange Commission pursuant to Regulation 14A,
not later than 120 days after the close of the fiscal year. The information
concerning delinquent filers pursuant to Item 405 of Regulation S-K is
incorporated herein by reference from the material contained under the heading
"Section 16(a) Beneficial Ownership Reporting Compliance" under the caption
"Stock Ownership" in the Registrant's definitive proxy statement to be filed
with the Securities and Exchange Commission pursuant to Regulation 14A, not
later than 120 days after the close of the fiscal year.

Item 11.     Executive Compensation

      The information required under this item is incorporated herein by
reference from the material contained under the caption "Executive Compensation"
in the Registrant's definitive proxy statement to be filed with the Securities
and Exchange Commission pursuant to Regulation 14A, not later than 120 days
after the close of the fiscal year.

Item 12.     Security Ownership of Certain Beneficial Owners and Management

      The information required under this item is incorporated herein by
reference from the material contained under the caption "Stock Ownership" in the
Registrant's definitive proxy statement to be filed with the Securities and
Exchange Commission pursuant to Regulation 14A, not later than 120 days after
the close of the fiscal year.

Item 13.     Certain Relationships and Related Transactions

      The information required under this item is incorporated herein by
reference from the material contained under the caption "Relationship with
Affiliates" in the Registrant's definitive proxy statement to be filed with the
Securities and Exchange Commission pursuant to Regulation 14A, not later than
120 days after the close of the fiscal year.


                                       12
<PAGE>
                                     PART IV

Item 14.  Exhibits, Financial Statement Schedules, and Reports on Form 8-K

(a,d)  Financial Statements and Schedules

       (1)The financial statements set forth in the list below are filed as part
of this Report.

       (2)The financial statement schedule set forth in the list below is filed
as part of this Report.

       (3)Exhibits filed herewith or incorporated herein by reference are set
forth in Item 14(c) below.

       List of Financial Statements and Schedules Referenced in this Item 14

       Information incorporated by reference from Exhibit 13 filed herewith:

          Consolidated Statement of Income
          Consolidated Balance Sheet
          Consolidated Statement of Cash Flows
          Consolidated Statement of Comprehensive Income and Shareholders'
               Investment
          Notes to Consolidated Financial Statements
          Report of Independent Public Accountants

       Financial Statement Schedules filed herewith:

          Schedule II:  Valuation and Qualifying Accounts

       All other schedules are omitted because they are not applicable or not
       required, or because the required information is shown either in the
       financial statements or in the notes thereto.

(b)    Reports on Form 8-K

       None.

(c)    Exhibits

       See Exhibit Index on the page immediately preceding exhibits.



                                       13
<PAGE>

                                   SIGNATURES

      Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the Registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly authorized.

Date:  March 17, 2000                              THERMO CARDIOSYSTEMS INC.


                                                   By: /s/ R. Michael Kleine
                                                       R. Michael Kleine
                                                       Chief Executive Officer

      Pursuant to the requirements of the Securities Exchange Act of 1934, this
report has been signed below by the following persons on behalf of the
Registrant and in the capacities indicated, as of March 17, 2000.

Signature                                          Title


By:  /s/ R. Michael Kleine             Chief Executive Officer and Director
     R. Michael Kleine


By:  /s/ Theo Melas-Kyriazi            Chief Financial Officer
     Theo Melas-Kyriazi


By:  /s/ Paul F. Kelleher              Chief Accounting Officer
     Paul F. Kelleher


By:  /s/ Walter J. Bornhorst           Director
     Walter J. Bornhorst


By:  /s/ Elias P. Gyftopoulos          Director
     Elias P. Gyftopoulos


By:  /s/ John T. Keiser                Chairman of the Board and Director
     John T. Keiser


By:  /s/ Leonard Laster                Director
     Leonard Laster


By:  /s/ Victor L. Poirier             Director
     Victor L. Poirier


By:  /s/ Nicholas T. Zervas            Director
     Nicholas T. Zervas



                                       14
<PAGE>

                       Report of Independent Public Accountants

To the Shareholders and Board of Directors of Thermo Cardiosystems Inc.:

      We have audited, in accordance with generally accepted auditing standards,
the consolidated financial statements included in Thermo Cardiosystems Inc.'s
Annual Report to Shareholders incorporated by reference in this Form 10-K, and
have issued our report thereon dated February 10, 2000. Our audits were made for
the purpose of forming an opinion on those statements taken as a whole. The
schedule listed in Item 14 on page 13 is the responsibility of the Company's
management and is presented for purposes of complying with the Securities and
Exchange Commission's rules and is not part of the basic consolidated financial
statements. The schedule has been subjected to the auditing procedures applied
in the audits of the basic consolidated financial statements and, in our
opinion, fairly states in all material respects the consolidated financial data
required to be set forth therein in relation to the basic consolidated financial
statements taken as a whole.



                                                      Arthur Andersen LLP



Boston, Massachusetts
February 10, 2000

</TABLE>

                                       15
<PAGE>
SCHEDULE II

                                        THERMO CARDIOSYSTEMS INC.
                                    Valuation and Qualifying Accounts
                                              (In thousands)

<TABLE>
<CAPTION>

<S>                                                        <C>          <C>           <C>         <C>
Description                                                Balance at    Provision    Accounts    Balance
                                                            Beginning   Charged to     Written     at End
                                                              of Year      Expense         Off    of Year
- -------------------------------------------------------- ------------- ------------ ----------- ----------

Allowance for Doubtful Accounts

Year Ended January 1, 2000                                   $    951      $   120      $  (62)     $1,009

Year Ended January 2, 1999                                   $    833      $   120      $   (2)     $  951

Year Ended January 3, 1998                                   $    736      $   120      $  (23)     $  833



                                       16
<PAGE>

                                              EXHIBIT INDEX
Exhibit
Number         Description of Exhibit

 2             Agreement and Plan of Reorganization among Thermo Cardiosystems
               Inc., ITC Acquisition Corp., Thermo Electron Corporation, ITC
               Holdings Inc., and International Technidyne Corporation dated as
               of May 2, 1997 (filed as Exhibit 2.1 to the Registrant's
               Quarterly Report on Form 10-Q for the quarter ended March 29,
               1997 [File No. 1-10114] and incorporated herein by reference).

 3.1           Articles of Organization, as filed on August 18, 1988, and as
               amended on October 26, 1988, January 6, 1989, and May 23, 1990
               (filed as Exhibit 3(a) to the Registrant's Registration Statement
               on Form S-1 [Reg. No. 33-34737] and incorporated herein by
               reference) and as amended on October 25, 1993 (filed as Exhibit
               3(c) to the Registrant's Quarterly Report on Form 10-Q for the
               quarter ended October 2, 1993 [File No. 1-10114] and incorporated
               herein by reference).

 3.2           By-Laws of the Registrant (filed as Exhibit 3(b) to the Registrant's Registration
               Statement on Form S-1 [Reg. No. 33-25144] and incorporated herein by reference).

 4.1           Form of Guarantee Agreement between the Registrant and Thermo Electron (filed as Exhibit
               4(b) to the Registrant's Registration Statement on Form S-1 [Reg. No. 33-25144] and
               incorporated herein by reference).

 4.2           Form of Amendment Number 1 to Guarantee Agreement between the
               Registrant and Thermo Electron (filed as Exhibit 4(e) to the
               Registrant's Registration Statement on Form S-1 [Reg. No.
               33-34737] and incorporated herein by reference).

 4.3           Fiscal Agency Agreement dated January 5, 1993, among Thermo Electron, the Registrant, and
               Chemical Bank (filed as Exhibit 4.11 to the Registrant's Annual Report on Form 10-K for
               the fiscal year ended January 1, 1994 [File No. 1-10114] and incorporated herein by
               reference).

 4.4           Guarantee Reimbursement Agreement dated February 7, 1994, among the Registrant, Thermo
               Voltek Corp., Thermedics, and Thermo Electron (filed as Exhibit 4.4 to Thermedics' Annual
               Report on Form 10-K for the fiscal year ended January 1, 1994 [File No. 1-9567] and
               incorporated herein by reference).

 4.5           Fiscal Agency Agreement dated as of May 14, 1997, among the Registrant, Thermo Electron
               Corporation, and Bankers Trust Company as fiscal agent relating to $70 million principal
               amount of 4 3/4% Convertible Subordinated Debentures due 2004 (filed as Exhibit 4 to the
               Registrant's Quarterly Report on Form 10-Q for the quarter ended June 28, 1997 [File No. 1-10114] and
               incorporated herein by reference).

10.1           Amended and Restated Corporate Services Agreement dated January
               3, 1993, between Thermo Electron and the Registrant (filed as
               Exhibit 10(b) to the Registrant's Annual Report on Form 10-K for
               the year ended January 2, 1993 [File No. 1-10114] and
               incorporated herein by reference).

10.2           Sublease dated August 19, 1988, between the Registrant and
               Thermedics, as amended by Amendment No. 1 dated January 1, 1990
               (filed as Exhibit 10(c) to the Registrant's Annual Report on Form
               10-K for the fiscal year ended December 30, 1989 [File No.
               1-10114] and incorporated herein by reference).

10.3           Form of Indemnification Agreement between the Registrant and its officers and directors
               (filed as Exhibit 10(d) to the Registrant's Registration Statement on Form S-1 [Reg. No.
               33-25144] and incorporated herein by reference).


                                       17
<PAGE>
Exhibit
Number         Description of Exhibit

10.4           Thermo Electron Corporate Charter, as amended and restated
               effective January 3, 1993 (filed as Exhibit 10(e) to the
               Registrant's Annual Report on Form 10-K for the fiscal year ended
               January 2, 1993 [File No. 1-10114] and incorporated herein by
               reference).

10.5           Intellectual Property Cross-license Agreement between Thermedics and the Registrant dated
               August 19, 1988 (filed as Exhibit 10(i) to the Registrant's Registration Statement on
               Form S-1 [Reg. No. 33-25144] and incorporated herein by reference).

10.6           Agreement dated May 26, 1993, between The Polymer Technology
               Group Incorporated and the Registrant (filed as Exhibit 10(cc) to
               the Registrant's Quarterly Report on Form 10-Q for the quarter
               ended July 3, 1993 [File No. 1-10114] and incorporated herein by
               reference).

10.7           Amended and Restated Master Repurchase Agreement dated July 2, 1996, between the
               Registrant and Thermo Electron (filed as Exhibit 10.7 to the Registrant's Annual Report
               on Form 10-K for the fiscal year ended December 28, 1996 [File No. 1-10114] and
               incorporated herein by reference).

10.8-10.17     Reserved.

10.18          Incentive Stock Option Plan of the Registrant (filed as Exhibit
               10(f) to the Registrant's Registration Statement on Form S-1
               [Reg. No. 33-25144] and incorporated herein by reference).
               (Maximum number of shares issuable in the aggregate under this
               plan and the Registrant's Nonqualified Stock Option Plan is
               1,715,625 shares, after adjustment to reflect share increase
               approved in 1992, 3-for-2 stock split effected in January 1990,
               5-for-4 stock split effected in May 1990, 2-for-1 stock split
               effected in November 1993, and 3-for-2 stock split effected in
               May 1996.) In addition to the stock-based compensation plans of
               the Registrant, the executive officers of the Registrant may be
               granted awards under stock-based compensation plans of Thermo
               Electron and Thermedics for services rendered to the Registrant
               or to such affiliated corporations. The terms of such plans are
               substantially the same as those of the Registrant's Equity
               Incentive Plan.

10.19          Restated Stock Holdings Assistance Plan and Form of Promissory
               Note (filed as Exhibit 10.23 to the Registrant's Annual Report on
               Form 10-K for the year ended January 3, 1998 [File No. 1-10114]
               and incorporated herein by reference).

10.20          Amended and Restated Master Guarantee Reimbursement and Loan
               Agreement dated as of December 18, 1997, between Thermo Electron
               and the Registrant (filed as Exhibit 10.24 to the Registrant's
               Annual Report on Form 10-K for the year ended January 3, 1998
               [File No. 1-10114] and incorporated herein by reference).

10.21          Amended and Restated Master Guarantee Reimbursement and Loan
               Agreement dated as of December 18, 1997, between Thermedics and
               the Registrant (filed as Exhibit 10.25 to the Registrant's Annual
               Report on Form 10-K for the year ended January 3, 1998 [File No.
               1-10114] and incorporated herein by reference).

10.22          Master Cash Management, Guarantee Reimbursement, and Loan
               Agreement dated as of June 1, 1999, between the Registrant and
               Thermo Electron Corporation (filed as Exhibit 10.1 to the
               Registrant's Quarterly Report on Form 10-Q for the quarter ended
               July 3, 1999 [File No. 1-10114] and incorporated herein by
               reference).





                                       18
<PAGE>
Exhibit
Number         Description of Exhibit

10.23          Amended and Restated Directors Stock Option Plan of the Company (filed as Exhibit 10.2 to
               the Registrant's Quarterly Report on Form 10-Q for the quarter ended July 3, 1999 [File
               No. 1-10114] and incorporated herein by reference).

10.24          Amended and Restated Deferred Compensation Plan for Directors of the Company (filed as
               Exhibit 10.3 to the Registrant's Quarterly Report on Form 10-Q for the quarter ended July
               3, 1999 [File No. 1-10114] and incorporated herein by reference).

10.25          Amended and Restated Equity Incentive Plan of the Company (filed
               as Exhibit 10.4 to the Registrant's Quarterly Report on Form 10-Q
               for the quarter ended July 3, 1999 [File No. 1-10114] and
               incorporated herein by reference).

10.26          Amended and Restated Nonqualified Stock Option Plan of the Company (filed
               as Exhibit 10.5 to the Registrant's Quarterly Report on Form 10-Q
               for the quarter ended July 3, 1999 [File No. 1-10114] and incorporated herein by reference).

10.27          Transition Agreement dated February 18, 2000, between Michael
               Kleine and Thermo Electron Corporation relating to the proposed
               sale of the Registrant.

10.28          Transition Agreement dated February 18, 2000, between Victor
               Poirier and Thermo Electron Corporation relating to the proposed
               sale of the Registrant.

10.29          Retention Agreement dated February 16, 2000, between Timothy
               Krauskopf and Thermo Electron Corporation relating to the
               Registrant.

10.30          Retention Agreement dated February 16, 2000, between Jay Caplan
               and Thermo Electron Corporation relating to the Registrant.

13             Annual Report to Shareholders for the year ended January 1, 2000
               (only those portions incorporated herein by reference).

21             Subsidiaries of the Registrant.

23             Consent of Arthur Andersen LLP.

27             Financial Data Schedule.
</TABLE>


February 18, 2000


Mike Kleine
Thermo Cardiosystems Inc.


Dear Mike:

As we have discussed, Thermo Electron Corporation has announced a reorganization
of the company in which certain of the company's assets, including those of
Thermo Cardiosystems Inc. will be sold. We recognize that your past
contributions have been integral to the success of the company and that your
continued involvement will be necessary in order to facilitate the sale of
Thermo Cardiosystems Inc. and to assure a smooth transition for a potential
buyer.

In order to provide an incentive for you to remain with the company through the
completion of the sale, we will pay you a transaction bonus. If the new owners
do not offer you continued employment in a comparable position, you will also be
provided with severance as described below.

TRANSACTION BONUS
- -----------------

You will be paid a minimum payment of $200,000 for the sale or disposition of
the business at a price equal to $400,000,000 . If sale price exceeds
$400,000,000, a pool will be generated equal to one half of one percent (.5%) of
the difference between the actual sale price and $400,000,000. You will receive
40% of this pool in addition to the minimum payment of $200,000.

This transaction bonus will be paid to you in one lump sum on or before ninety
(90) days following the closing date.

SEVERANCE
- ---------

If the new owners do not offer you continued employment in a comparable
position, we agree to pay you severance equal to two (2) times your annual base
salary.

TERMS OF AGREEMENT
- ------------------

1. Thermo Cardiosystems Inc.agrees to continue to employ you on the same terms
and with the same benefits you currently enjoy as an employee-at-will. In
return, you agree to remain in such employ and to continue to devote your full
time and best efforts to Thermo Cardiosystems Inc. as an employee-at-will until
the closing date of the sale of Thermo Cardiosystems Inc.



<PAGE>



2. You understand that Thermo Cardiosystems Inc. retains the right to terminate
your services without cause (as defined below) and you retain the right to
terminate your services for Thermo Cardiosystems Inc. at any time. If your
employment is terminated by the company for its convenience and without cause
within 180 days prior to the closing of sale, you will be paid your full and
unreduced transaction bonus and severance pay at the time of the sale. If you
terminate your employment prior to the closing date, or Thermo Cardiosystems
Inc. terminates your employment for "cause" (as defined below), you will forfeit
any and all payments that you would be entitled to under this agreement.

3. For the purposes of this agreement, "cause" shall be determined by the
company in the exercise of good faith and reasonable judgment and will include
any breach of this agreement by you or any act by you of gross personal
misconduct, insubordination, misappropriation of funds, fraud, dishonesty, gross
neglect of or failure to perform the duties reasonably required of you pursuant
to this agreement or any conduct which is in willful violation of any applicable
law or regulation pertaining to the business.

4. For purposes of this agreement, we agree that Thermo Cardiosystems Inc. will
be considered to be sold when any person or entity, other than a person or
entity affiliated with Thermo Electron, purchases at least fifty percent (50%)
of the assets of the business, whether through a purchase of the business or a
purchase of the company of which the business is a part.

5. You understand that all payments made under this agreement are subject to
appropriate federal, state, city or other tax withholding requirements.

6. You acknowledge that this agreement supersedes any prior agreements or
understandings oral or written between you and Thermo Cardiosystems Inc.
pertaining to any incentive payments being offered to employees of businesses
being sold in connection with the reorganization and that this agreement
constitutes the entire agreement between us.

On behalf of Thermo Electron and Thermo Cardiosystems Inc., I thank you for your
continued assistance and support. If you have any questions regarding any of the
terms of this agreement, please do not hesitate to contact me.

Once you have read and understood the terms of this agreement, please indicate
your agreement by signing below on the line above your typewritten name, make a
copy for your records and return the original document to me.

                                                        Very truly yours,



                                                        John T. Keiser
                                                        COO, Thermo Electron


Accepted and agreed:


X__________________________________         _________________
   (Name)                                     Date

February 18, 2000


Vic Poirer
Thermo Cardiosystems Inc.


Dear Vic:

As we have discussed, Thermo Electron Corporation has announced a reorganization
of the company in which certain of the company's assets, including those of
Thermo Cardiosystems Inc. will be sold. We recognize that your past
contributions have been integral to the success of the company and that your
continued involvement will be necessary in order to facilitate the sale of
Thermo Cardiosystems Inc. and to assure a smooth transition for a potential
buyer.

In order to provide an incentive for you to remain with the company through the
completion of the sale, we will pay you a transaction bonus. If the new owners
do not offer you continued employment in a comparable position, you will also be
provided with severance as described below.

TRANSACTION BONUS
- -----------------

You will be paid a minimum payment of $300,000 for the sale or disposition of
the business at a price equal to $400,000,000 . If sale price exceeds
$400,000,000 a pool will be generated equal to one half of one percent (.5%) of
the difference between the actual sale price and $400,000,000. You will receive
60% of this pool in addition to the minimum payment of $300,000.

This transaction bonus will be paid to you in one lump sum on or before ninety
(90) days following the closing date.

SEVERANCE
- ---------

If the new owners do not offer you continued employment in a comparable
position, we agree to pay you severance equal to two (2) times your annual base
salary.

TERMS OF AGREEMENT
- ------------------

1. Thermo Cardiosystems Inc.agrees to continue to employ you on the same terms
and with the same benefits you currently enjoy as an employee-at-will. In
return, you agree to remain in such employ and to continue to devote your full
time and best efforts to Thermo Cardiosystems Inc. as an employee-at-will until
the closing date of the sale of Thermo Cardiosystems Inc.



<PAGE>



2. You understand that Thermo Cardiosystems Inc. retains the right to terminate
your services without cause (as defined below) and you retain the right to
terminate your services for Thermo Cardiosystems Inc. at any time. If your
employment is terminated by the company for its convenience and without cause
within 180 days prior to the closing of sale, you will be paid your full and
unreduced transaction bonus and severance pay at the time of the sale. If you
terminate your employment prior to the closing date, or Thermo Cardiosystems
Inc. terminates your employment for "cause" (as defined below), you will forfeit
any and all payments that you would be entitled to under this agreement.

3. For the purposes of this agreement, "cause" shall be determined by the
company in the exercise of good faith and reasonable judgment and will include
any breach of this agreement by you or any act by you of gross personal
misconduct, insubordination, misappropriation of funds, fraud, dishonesty, gross
neglect of or failure to perform the duties reasonably required of you pursuant
to this agreement or any conduct which is in willful violation of any applicable
law or regulation pertaining to the business.

4. For purposes of this agreement, we agree that Thermo Cardiosystems Inc. will
be considered to be sold when any person or entity, other than a person or
entity affiliated with Thermo Electron, purchases at least fifty percent (50%)
of the assets of the business, whether through a purchase of the business or a
purchase of the company of which the business is a part.

5. You understand that all payments made under this agreement are subject to
appropriate federal, state, city or other tax withholding requirements.

6. You acknowledge that this agreement supersedes any prior agreements or
understandings oral or written between you and Thermo Cardiosystems Inc.
pertaining to any incentive payments being offered to employees of businesses
being sold in connection with the reorganization and that this agreement
constitutes the entire agreement between us.

On behalf of Thermo Electron and Thermo Cardiosystems Inc., I thank you for your
continued assistance and support. If you have any questions regarding any of the
terms of this agreement, please do not hesitate to contact me.

Once you have read and understood the terms of this agreement, please indicate
your agreement by signing below on the line above your typewritten name, make a
copy for your records and return the original document to me.

                                                        Very truly yours,



                                                        John T. Keiser
                                                        COO, Thermo Electron


Accepted and agreed:


X__________________________________         _________________
   (Name)                                    Date


February 16, 2000


Tim Krauskopf
Thermo Cardiosystems Inc.


Dear Tim:

As we have discussed, Thermo Electron Corporation has announced a reorganization
of the company in which certain of the company's assets, including those of
Thermo Cardiosystems Inc., will be sold. We recognize that your past
contributions have been integral to the success of the company and that your
continued involvement will be necessary in order to facilitate the sale of
Thermo Cardiosystems Inc. and to assure a smooth transition for a potential
buyer.

In order to provide an incentive for you to remain with the company through the
completion of the sale, we will pay you a retention bonus

RETENTION BONUS
- ---------------

The retention bonus payable to you shall be equal to 100% of your annual base
salary.

This retention bonus will be paid to you in one lump sum on or before ninety
(90) days following the closing date, or January 1, 2002 whichever occurs first.


TERMS OF AGREEMENT
- ------------------

     1.  Thermo Cardiosystems Inc. agrees to continue to employ you on the same
         terms and with the same benefits you currently enjoy as an
         employee-at-will. In return, you agree to remain in such employ and to
         continue to devote your full time and best efforts to Thermo
         Cardiosystems Inc. as an employee-at-will until the closing date of the
         sale of Thermo Cardiosystems Inc..

     2.  You understand that Thermo Cardiosystems Inc. retains the right to
         terminate your services without cause (as defined below) and you retain
         the right to terminate your services for Thermo Cardiosystems Inc. at
         any time. If you terminate your employment prior to the closing date,
         or Thermo Cardiosystems Inc. terminates your employment for "cause" (as
         defined below), you will forfeit any and all payments that you would be
         entitled to under this agreement.

     3.  For the purposes of this agreement, "cause" shall be determined by the
         company in the exercise of good faith and reasonable judgment and will
         include any breach of this agreement by you or any act by you of gross
         personal misconduct, insubordination, misappropriation of funds, fraud,
         dishonesty, gross neglect of or failure to perform the duties
         reasonably required of you pursuant to this agreement or any conduct
         which is in willful violation of any applicable law or regulation
         pertaining to the business.

<PAGE>

     4.  For purposes of this agreement, we agree that Thermo Cardiosystems Inc.
         will be considered to be sold when any person or entity, other than a
         person or entity affiliated with Thermo Electron, purchases at least
         fifty percent (50%) of the assets of the business, whether through a
         purchase of the business or a purchase of the company of which the
         business is a part.

     5.  You understand that all payments made under this agreement are subject
         to appropriate federal, state, city or other tax withholding
         requirements.

     6.  You acknowledge that this agreement supersedes any prior agreements or
         understandings oral or written between you and Thermo Cardiosystems
         Inc. pertaining to any incentive payments being offered to employees of
         businesses being sold in connection with the reorganization and that
         this agreement constitutes the entire agreement between us.

On behalf of Thermo Electron and Thermo Cardiosystems Inc., I thank you for your
continued assistance and support. If you have any questions regarding any of the
terms of this agreement, please do not hesitate to contact me.

Once you have read and understood the terms of this agreement, please indicate
your agreement by signing below on the line above your typewritten name, make a
copy for your records and return the original document to me.

                                                         Very truly yours,



                                                         John T. Keiser
                                                         COO, Thermo Electron
Accepted and agreed:


X__________________________________         _________________
   (Name)                                    Date

February 16, 2000


Jay Caplan
Thermo Cardiosystems Inc.


Dear Jay:

As we have discussed, Thermo Electron Corporation has announced a reorganization
of the company in which certain of the company's assets, including those of
Thermo Cardiosystems Inc., will be sold. We recognize that your past
contributions have been integral to the success of the company and that your
continued involvement will be necessary in order to facilitate the sale of
Thermo Cardiosystems Inc. and to assure a smooth transition for a potential
buyer.

In order to provide an incentive for you to remain with the company through the
completion of the sale, we will pay you a retention bonus

RETENTION BONUS
- ---------------

The retention bonus payable to you shall be equal to 100% of your annual base
salary.

This retention bonus will be paid to you in one lump sum on or before ninety
(90) days following the closing date, or January 1, 2002 whichever occurs first.


TERMS OF AGREEMENT
- ------------------

     1.  Thermo Cardiosystems Inc. agrees to continue to employ you on the same
         terms and with the same benefits you currently enjoy as an
         employee-at-will. In return, you agree to remain in such employ and to
         continue to devote your full time and best efforts to Thermo
         Cardiosystems Inc. as an employee-at-will until the closing date of the
         sale of Thermo Cardiosystems Inc..

     2.  You understand that Thermo Cardiosystems Inc. retains the right to
         terminate your services without cause (as defined below) and you retain
         the right to terminate your services for Thermo Cardiosystems Inc. at
         any time. If you terminate your employment prior to the closing date,
         or Thermo Cardiosystems Inc. terminates your employment for "cause" (as
         defined below), you will forfeit any and all payments that you would be
         entitled to under this agreement.

     3.  For the purposes of this agreement, "cause" shall be determined by the
         company in the exercise of good faith and reasonable judgment and will
         include any breach of this agreement by you or any act by you of gross
         personal misconduct, insubordination, misappropriation of funds, fraud,
         dishonesty, gross neglect of or failure to perform the duties
         reasonably required of you pursuant to this agreement or any conduct
         which is in willful violation of any applicable law or regulation
         pertaining to the business.

<PAGE>

     4.  For purposes of this agreement, we agree that Thermo Cardiosystems Inc.
         will be considered to be sold when any person or entity, other than a
         person or entity affiliated with Thermo Electron, purchases at least
         fifty percent (50%) of the assets of the business, whether through a
         purchase of the business or a purchase of the company of which the
         business is a part.

     5.  You understand that all payments made under this agreement are subject
         to appropriate federal, state, city or other tax withholding
         requirements.

     6.  You acknowledge that this agreement supersedes any prior agreements or
         understandings oral or written between you and Thermo Cardiosystems
         Inc. pertaining to any incentive payments being offered to employees of
         businesses being sold in connection with the reorganization and that
         this agreement constitutes the entire agreement between us.

On behalf of Thermo Electron and Thermo Cardiosystems Inc., I thank you for your
continued assistance and support. If you have any questions regarding any of the
terms of this agreement, please do not hesitate to contact me.

Once you have read and understood the terms of this agreement, please indicate
your agreement by signing below on the line above your typewritten name, make a
copy for your records and return the original document to me.

                                                         Very truly yours,



                                                         John T. Keiser
                                                         COO, Thermo Electron
Accepted and agreed:


X__________________________________         _________________
   (Name)                                     Date


                                                               Exhibit 13









                                        Thermo Cardiosystems Inc.

                                    Consolidated Financial Statements

                                                   1999

<PAGE>

<TABLE>
<CAPTION>

Thermo Cardiosystems Inc.                                                        1999 Financial Statements

                                     Consolidated Statement of Income

<S>                                                                                <C>       <C>     <C>
(In thousands except per share amounts)                                            1999      1998    1997
- ------------------------------------------------------------------------------- -------- --------- -------

Revenues (Note 11)                                                              $79,090  $ 66,848  $62,834
                                                                                -------  --------  -------

Costs and Operating Expenses:
 Cost of revenues                                                                33,739    28,405   27,143
 Selling, general, and administrative expenses (Note 7)                          22,018    18,960   16,548
 Research and development expenses                                               15,631    10,929    8,682
                                                                                -------  --------  -------

                                                                                 71,388    58,294   52,373
                                                                                -------  --------  -------

Operating Income                                                                  7,702     8,554   10,461

Interest Income                                                                   7,086     7,448    6,476
Interest Expense                                                                 (3,551)   (3,591)  (2,244)
Gain on Sale of Investments (Note 2)                                                  -        28        5
                                                                                -------  --------  -------

Income Before Provision for Income Taxes and Extraordinary Item                  11,237    12,439   14,698
Provision for Income Taxes (Note 5)                                               2,865     4,619    5,679
                                                                                -------  --------  -------

Income Before Extraordinary Item                                                  8,372     7,820    9,019
Extraordinary Item, Net of Provision for Income Taxes of $743 (Note 6)            1,212         -        -
                                                                                -------  --------  -------

Net Income                                                                      $ 9,584  $  7,820  $ 9,019
                                                                                =======  ========  =======

Basic and Diluted Earnings per Share (Note 12)                                  $   .25  $    .20  $   .23
                                                                                =======  ========  =======

Weighted Average Shares (Note 12)
 Basic                                                                           38,443    38,810   39,482
                                                                                =======  ========  =======

 Diluted                                                                         38,482    38,985   39,765
                                                                                =======  ========  =======


















The accompanying notes are an integral part of these consolidated financial
statements.
</TABLE>


                                       2
<PAGE>

<TABLE>
<CAPTION>

Thermo Cardiosystems Inc.                                                        1999 Financial Statements

                                        Consolidated Balance Sheet
<S>                                                                                        <C>       <C>
(In thousands)                                                                             1999      1998
- ------------------------------------------------------------------------------------- ---------- ---------

Assets
Current Assets:
 Cash and cash equivalents (includes $20,717 under repurchase agreement                $    418   $ 42,026
   with affiliated company in fiscal 1998)
 Advance to affiliate                                                                    13,961          -
 Short-term available-for-sale investments, at quoted market value                       82,559     43,310
   (amortized cost of $82,767 and $43,155; Note 2)
 Accounts receivable, less allowances of $1,009 and $951                                 14,368     12,240
 Inventories                                                                             14,945     11,937
 Deferred tax asset (Note 5)                                                              4,128      2,629
 Prepaid expenses and other current assets                                                   69        411
                                                                                       --------   --------

                                                                                        130,448    112,553
                                                                                       --------   --------

Property, Plant, and Equipment, at Cost, Net                                              7,359      7,330
                                                                                       --------   --------

Long-term Available-for-sale Investments, at Quoted Market Value                         28,108     47,259
 (amortized cost of $28,427 and $47,227; Note 2)                                       --------   --------

Deferred Tax Asset (Note 5)                                                               2,611      3,195
                                                                                       --------   --------

Other Assets                                                                              1,402      2,026
                                                                                       --------   --------

                                                                                       $169,928   $172,363
                                                                                       ========   ========

                                       3
<PAGE>
Thermo Cardiosystems Inc.                                                        1999 Financial Statements

                                  Consolidated Balance Sheet (continued)

(In thousands except share amounts)                                                        1999      1998
- ------------------------------------------------------------------------------------- ---------- ---------

Liabilities and Shareholders' Investment
Current Liabilities:
 Accounts payable                                                                      $  4,235   $  4,356
 Accrued payroll and employee benefits                                                    3,788      3,126
 Accrued warranty expenses                                                                1,420      1,210
 Accrued income taxes                                                                     1,067      1,468
 Other accrued expenses                                                                   3,754      3,154
 Due to parent company and affiliated companies                                             713        335
                                                                                       --------   --------

                                                                                         14,977     13,649
                                                                                       --------   --------

Subordinated Convertible Debentures (Note 6)                                             58,011     70,000
                                                                                       --------   --------

Commitments and Contingency (Notes 7 and 8)

Shareholders' Investment (Notes 4 and 9):
 Common stock, $.10 par value, 100,000,000 shares authorized;                             4,053      4,052
   40,531,130 and 40,522,021 shares issued
 Capital in excess of par value                                                          96,006     98,489
 Retained earnings                                                                       49,500     39,916
 Treasury stock at cost, 2,054,669 and 2,031,795 shares                                 (51,807)   (53,892)
 Deferred compensation                                                                     (521)         -
 Accumulated other comprehensive items (Note 13)                                           (291)       149
                                                                                       --------   --------

                                                                                         96,940     88,714
                                                                                       --------   --------

                                                                                       $169,928   $172,363
                                                                                       ========   ========




















The accompanying notes are an integral part of these consolidated financial
statements.
</TABLE>



                                       4
<PAGE>
<TABLE>
<CAPTION>

Thermo Cardiosystems Inc.                                                        1999 Financial Statements

                                   Consolidated Statement of Cash Flows
<S>                                                                            <C>        <C>         <C>
(In thousands)                                                                 1999       1998        1997
- ------------------------------------------------------------------------- ---------- ----------- ---------

Operating Activities
 Net income                                                               $   9,584  $    7,820  $  9,019
 Adjustments to reconcile net income to net cash provided by
   operating activities:
     Depreciation and amortization                                            2,880       2,987     2,571
     Provision for losses on accounts receivable                                120         120       120
     Extraordinary item, net of income taxes (Note 6)                        (1,212)          -         -
     Gain on sale of investments                                                  -         (28)       (5)
     Deferred income tax expense (benefit)                                     (780)        887      (170)
     Other noncash items                                                        104         (69)      (13)
     Changes in current accounts:
       Accounts receivable                                                   (2,252)       (981)    1,987
       Inventories                                                           (3,012)      2,584      (658)
       Other current assets                                                     640         (69)      (14)
       Accounts payable                                                        (119)      2,065    (1,210)
       Other current liabilities                                                708       1,550     2,396
                                                                          ---------  ----------  --------

        Net cash provided by operating activities                             6,661      16,866    14,023
                                                                          ---------  ----------  --------

Investing Activities
 Proceeds from maturities of available-for-sale investments                 131,943     175,619   103,390
 Proceeds from sale of available-for-sale investments                         8,000       5,900         -
 Purchases of available-for-sale investments                               (160,755)   (213,775)  (81,043)
 Purchases of property, plant, and equipment                                 (2,540)     (1,599)   (2,333)
 Advances to affiliate, net                                                 (13,961)          -         -
 Other                                                                           33         173        37
                                                                          ---------  ----------  --------

        Net cash provided by (used in) investing activities                 (37,280)    (33,682)   20,051
                                                                          ---------  ----------  --------

Financing Activities
 Net proceeds from issuance of subordinated convertible                           -           -    68,028
   debentures (Note 6)
 Purchases of Company common stock and subordinated                         (10,910)    (12,114)  (32,957)
   convertible debentures (Note 6)
 Net proceeds from issuance of Company common stock                             193         525       602
 Payment of withholding taxes related to stock option exercises                (290)       (729)     (138)
 International Technidyne transfers of cash from Thermo Electron                  -           -       350
                                                                          ---------  ----------  --------

        Net cash provided by (used in) financing activities                 (11,007)    (12,318)   35,885
                                                                          ---------  ----------  --------

Exchange Rate Effect on Cash                                                     18           2        42
                                                                          ---------  ----------  --------

Increase (Decrease) in Cash and Cash Equivalents                            (41,608)    (29,132)   70,001
Cash and Cash Equivalents at Beginning of Year                               42,026      71,158     1,157
                                                                          ---------  ----------  --------

Cash and Cash Equivalents at End of Year                                  $     418  $   42,026  $ 71,158
                                                                          =========  ==========  ========


                                       5
<PAGE>
Thermo Cardiosystems Inc.                                                        1999 Financial Statements

                             Consolidated Statement of Cash Flows (continued)
(In thousands)                                                                 1999       1998        1997
- ------------------------------------------------------------------------- ---------- ----------- ---------

Cash Paid For
 Interest                                                                 $   3,382  $    3,325  $  1,672
 Income taxes                                                             $   4,670  $    2,961  $  2,961

Noncash Activities
 Conversions of subordinated debentures                                   $       -  $        -  $  3,755
                                                                          =========  ==========  ========









































The accompanying notes are an integral part of these consolidated financial
statements.

                                       6
<PAGE>
Thermo Cardiosystems Inc.                                                        1999 Financial Statements

               Consolidated Statement of Comprehensive Income and Shareholders' Investment
(In thousands)                                                                 1999      1998         1997
- ------------------------------------------------------------------------- ---------- ---------- ----------

Comprehensive Income
Net Income                                                                 $  9,584   $  7,820   $ 9,019
                                                                           --------   --------   -------

Other Comprehensive Items (Note 13):
 Foreign currency translation adjustment                                         18          3        26
 Unrealized gain (loss) on available-for-sale investments, net of              (458)        20       141
   reclassification adjustment                                             --------   --------   -------

                                                                               (440)        23       167
                                                                           --------   --------   -------

                                                                           $  9,144   $  7,843   $ 9,186
                                                                           ========   ========   =======

Shareholders' Investment
Common Stock, $.10 Par Value:
 Balance at beginning of year                                              $  4,052   $  4,052   $ 4,023
 Issuance of stock under employees' and directors' stock plans                    1          -         3
 Conversions of subordinated convertible debentures                               -          -        26
                                                                           --------   --------   -------

 Balance at end of year                                                       4,053      4,052     4,052
                                                                           --------   --------   -------

Capital in Excess of Par Value:
 Balance at beginning of year                                                98,489     98,252    93,234
 Issuance of stock under employees' and directors' stock plans               (2,483)        11       211
 Tax benefit related to employees' and directors' stock plans                     -        226     1,078
 Conversions of subordinated convertible debentures                               -          -     3,729
                                                                           --------   --------   -------

 Balance at end of year                                                      96,006     98,489    98,252
                                                                           --------   --------   -------

Retained Earnings:
 Balance at beginning of year                                                39,916     32,096    22,727
 Net income                                                                   9,584      7,820     9,019
 International Technidyne transfer of cash from Thermo Electron                   -          -       350
                                                                           --------   --------   -------

 Balance at end of year                                                      49,500     39,916    32,096
                                                                           --------   --------   -------

Treasury Stock:
 Balance at beginning of year                                               (53,892)   (41,563)   (8,854)
 Activity under employees' and directors' stock plans                         3,010       (215)      248
 Purchases of Company common stock                                             (925)   (12,114)  (32,957)
                                                                           --------   --------   -------

 Balance at end of year                                                     (51,807)   (53,892)  (41,563)
                                                                           --------   --------   -------

Deferred Compensation (Note 4):
 Balance at beginning of year                                                     -          -         -
 Issuance of restricted stock under employees' stock plans                     (625)         -         -
 Amortization of deferred compensation                                          104          -         -
                                                                           --------   --------   -------

 Balance at end of year                                                    $   (521)  $      -   $     -
                                                                           --------   --------   -------



                                       7
<PAGE>
Thermo Cardiosystems Inc.                                                        1999 Financial Statements

         Consolidated Statement of Comprehensive Income and Shareholders' Investment (continued)

(In thousands)                                                                 1999      1998         1997
- ------------------------------------------------------------------------- ---------- ---------- ----------

Accumulated Other Comprehensive Items (Note 13):
 Balance at beginning of year                                              $    149   $    126   $   (41)
 Other comprehensive items                                                     (440)        23       167
                                                                           --------   --------   -------

 Balance at end of year                                                        (291)       149       126
                                                                           --------   --------   -------

                                                                           $ 96,940   $ 88,714   $92,963
                                                                           ========   ========   =======








































The accompanying notes are an integral part of these consolidated financial
statements.


                                       8
<PAGE>
Thermo Cardiosystems Inc.                                                        1999 Financial Statements

                                Notes to Consolidated Financial Statements

1.    Nature of Operations and Summary of Significant Accounting Policies

Nature of Operations
      Thermo Cardiosystems Inc. (the Company) operates in two business segments:
Left Ventricular-assist Systems (LVAS) and Other Medical Equipment. The Company
is a leader in the research, development, and manufacture of two implantable
LVAS: a pneumatic, or air-driven system and an electric version. Its
HeartMate(R) devices are designed to perform substantially all or part of the
pumping function of the left ventricle of the natural heart for patients
suffering from cardiovascular disease. This segment includes Nimbus Medical
Inc., which is involved in the research and development of ventricular-assist
devices and total artificial hearts. The Company's Other Medical Equipment
segment consists of International Technidyne Corporation, a leading manufacturer
of near-patient, whole-blood coagulation testing equipment and related
disposables, as well as premium-quality, single-use, skin-incision devices.

Relationship with Thermedics Inc. and Thermo Electron Corporation
      The Company was incorporated in 1988 as a wholly owned subsidiary of
Thermedics Inc. As of January 1, 2000, Thermedics owned 23,113,317 shares of the
Company's common stock, representing 60% of such stock outstanding. Thermedics
is a 76%-owned subsidiary of Thermo Electron Corporation. As of January 1, 2000,
Thermo Electron owned 15,976 shares of the Company's common stock, representing
less than 1% of such stock outstanding.
      On January 31, 2000, Thermo Electron announced that it plans to sell the
Company, as part of a major reorganization plan (Note 15).

Principles of Consolidation
      The accompanying financial statements include the accounts of the Company
and its wholly owned subsidiaries. All material intercompany accounts and
transactions have been eliminated.

Fiscal Year
      The Company has adopted a fiscal year ending the Saturday nearest December
31. References to 1999, 1998, and 1997 are for the fiscal years ended January 1,
2000, January 2, 1999, and January 3, 1998, respectively. Fiscal years 1999 and
1998 each included 52 weeks; fiscal year 1997 included 53 weeks.

Revenue Recognition
      The Company recognizes the majority of its revenues upon shipment of its
products. The Company provides a reserve for its estimate of warranty costs at
the time of shipment. Revenues and profits on long-term research and development
contracts are recognized using the percentage-of-completion method. Revenues
recorded under the percentage-of-completion method were $479,000 and $1,547,000
in 1999 and 1998, respectively. The percentage-of-completion is determined by
relating the actual costs incurred to date to management's estimate of total
costs to be incurred on each contract. If a loss is indicated on any contract in
process, a provision is made currently for the entire loss. Contracts generally
provide for the billing of customers on a cost-plus-fixed-fee basis as costs are
incurred.

Stock-based Compensation Plans
      The Company applies Accounting Principles Board Opinion (APB) No. 25,
"Accounting for Stock Issued to Employees," and related interpretations in
accounting for its stock-based compensation plans (Note 4). Accordingly, no
accounting recognition is given to stock options granted at fair market value
until they are exercised. Upon exercise, net proceeds, including tax benefits
realized, are credited to shareholders' investment.

Income Taxes
      In accordance with Statement of Financial Accounting Standards (SFAS) No.
109, "Accounting for Income Taxes," the Company recognizes deferred income taxes
based on the expected future tax consequences of differences between the
financial statement basis and the tax basis of assets and liabilities,
calculated using enacted tax rates in effect for the year in which the
differences are expected to be reflected in the tax return.

                                       9
<PAGE>
1.    Nature of Operations and Summary of Significant Accounting Policies (continued)

Earnings per Share
      Basic earnings per share have been computed by dividing net income by the
weighted average number of shares outstanding during the year. Except where the
effect would be antidilutive, diluted earnings per share have been computed
assuming the conversion of the Company's convertible debentures and the
elimination of the related interest expense, and the exercise of stock options,
as well as their related income tax effects.

Cash and Cash Equivalents
      At year-end 1998, $20,717,000 of the Company's cash equivalents were
invested in a repurchase agreement with Thermo Electron. Under this agreement,
the Company in effect lent excess cash to Thermo Electron, which Thermo Electron
collateralized with investments principally consisting of corporate notes, U.S.
government-agency securities, commercial paper, money market funds, and other
marketable securities, in the amount of at least 103% of such obligation. The
Company's funds subject to the repurchase agreement were readily convertible
into cash by the Company. The repurchase agreement earned a rate based on the
90-day Commercial Paper Composite Rate plus 25 basis points, set at the
beginning of each quarter. Effective June 1999, the Company adopted a new cash
management arrangement with Thermo Electron, described below, that replaces the
repurchase agreement.
      The Company's cash equivalents also include investments in commercial
paper with an original maturity of three months or less. At year-end 1999, the
Company's cash and cash equivalents also include cash held in a deposit account
in the United Kingdom. Cash equivalents are carried at cost, which approximates
market value.

Advance to Affiliate
      Effective June 1999, the Company and Thermo Electron commenced use of a
new domestic cash management arrangement. Under the new arrangement, amounts
advanced to Thermo Electron by the Company for domestic cash management purposes
bear interest at the 30-day Dealer Commercial Paper Rate plus 50 basis points,
set at the beginning of each month. Thermo Electron is contractually required to
maintain cash, cash equivalents, and/or immediately available bank lines of
credit equal to at least 50% of all funds invested under this cash management
arrangement by all Thermo Electron subsidiaries other than wholly owned
subsidiaries. The Company has the contractual right to withdraw its funds
invested in the cash management arrangement upon 30 days' prior notice.
</TABLE>

Inventories
      Inventories are stated at the lower of cost (on a first-in, first-out
basis) or market value and include materials, labor, and manufacturing overhead.
The components of inventories are as follows:
<TABLE>
<CAPTION>
<S>                                                                                         <C>      <C>
(In thousands)                                                                              1999     1998
- ---------------------------------------------------------------------------------------- -------  -------

Raw Materials                                                                            $ 3,863  $ 3,010
Work in Process                                                                            7,859    6,139
Finished Goods                                                                             3,223    2,788
                                                                                         -------  -------

                                                                                         $14,945  $11,937
                                                                                         =======  =======
      The Company periodically reviews its quantities of inventories on hand and
compares these amounts to expected usage of each particular product or product
line. The Company records as a charge to cost of revenues any amounts required
to reduce the carrying value of inventories to net realizable value.

                                       10
<PAGE>
1.    Nature of Operations and Summary of Significant Accounting Policies (continued)

Property, Plant, and Equipment
      The costs of additions and improvements are capitalized, while maintenance
and repairs are charged to expense as incurred. The Company provides for
depreciation and amortization using the straight-line method over the estimated
useful lives of the property, as follows: buildings, 30 years; machinery and
equipment, 2 to 7 years; and leasehold improvements, the shorter of the term of
the lease or the life of the asset. Property, plant, and equipment consists of
the following:

(In thousands)                                                                              1999     1998
- ---------------------------------------------------------------------------------------- -------- --------

Land                                                                                     $   341  $    341
Buildings                                                                                  2,445     2,445
Machinery, Equipment, and Leasehold Improvements                                          18,634    16,194
                                                                                         -------  --------

                                                                                          21,420    18,980
Less:  Accumulated Depreciation and Amortization                                          14,061    11,650
                                                                                         -------  --------

                                                                                         $ 7,359  $  7,330
                                                                                         =======  ========

Other Assets
      Other assets in the accompanying balance sheet include the cost of
acquired patents and trademarks and deferred debt expense relating to the
Company's issuance of subordinated convertible debentures. These assets are
being amortized using the straight-line method over their estimated useful
lives, which range from 7 to 40 years. These assets were $1,350,000 and
$1,889,000, net of accumulated amortization of $981,000 and $663,000, at
year-end 1999 and 1998, respectively.

Foreign Currency
      All assets and liabilities of the Company's foreign subsidiary are
translated at year-end exchange rates, and revenues and expenses are translated
at average exchange rates for the year in accordance with SFAS No. 52, "Foreign
Currency Translation." Resulting translation adjustments are reflected in the
"Accumulated other comprehensive items" component of shareholders' investment
(Note 13). Foreign currency transaction gains and losses are included in the
accompanying statement of income and are not material for each of the three
years presented.

Use of Estimates
      The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities,
disclosure of contingent assets and liabilities at the date of the financial
statements, and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.

Presentation
      Certain amounts in 1998 and 1997 have been reclassified to conform to the
presentation in the 1999 financial statements.


                                       11
<PAGE>
2.    Available-for-sale Investments
</TABLE>

      The Company's debt securities are considered available-for-sale
investments in the accompanying balance sheet and are carried at market value,
with the difference between cost and market value, net of related tax effects,
recorded in the "Accumulated other comprehensive items" component of
shareholders' investment. The aggregate market value, cost basis, and gross
unrealized gains and losses of short- and long-term available-for-sale
investments by major security type are as follows:
<TABLE>
<CAPTION>
<S>                                                      <C>            <C>      <C>           <C>
(In thousands)                                                                        Gross         Gross
                                                         Market          Cost    Unrealized    Unrealized
                                                          Value         Basis         Gains        Losses
- -------------------------------------------------- ------------- ------------- ------------- -------------

1999
Government-agency Securities                           $108,318      $108,831      $     19      $   (532)
Other                                                     2,349         2,363           110          (124)
                                                       --------      --------      --------      --------

                                                       $110,667      $111,194      $    129      $   (656)
                                                       ========      ========      ========      ========

1998
Government-agency Securities                           $ 88,425      $ 88,337      $     97      $     (9)
Other                                                     2,144         2,045           124           (25)
                                                       --------      --------      --------      --------

                                                       $ 90,569      $ 90,382      $    221      $    (34)
                                                       ========      ========      ========      ========

      Short- and long-term available-for-sale investments in the accompanying
1999 balance sheet include $82,559,000 with contractual maturities of one year
or less, $27,425,000 with contractual maturities of more than one year through
five years, and $683,000 with contractual maturities of more than five years
through ten years. Actual maturities may differ from contractual maturities as a
result of the Company's intent to sell these securities prior to maturity and as
a result of put and call options that enable either the Company, the issuer, or
both to redeem these securities at an earlier date.
      The cost of available-for-sale investments that were sold was based on
specific identification in determining realized gains recorded in the
accompanying statement of income. Gain on sale of investments resulted from
gross realized gains of $28,000 and $5,000 in 1998 and 1997, respectively,
relating to the sale of available-for-sale investments.

3.    Acquisition

      In May 1997, the Company acquired International Technidyne from Thermo
Electron in exchange for the right to receive 3,355,705 shares of the Company's
common stock. International Technidyne is a leading manufacturer of
near-patient, whole-blood coagulation testing equipment and related disposables,
as well as premium-quality, single-use, skin-incision devices.
      Following approval of the Company's shareholders in April 1998, the shares
for the purchase of International Technidyne were issued. Because the Company
and International Technidyne were deemed for accounting purposes to be under
control of their common majority owner, Thermo Electron, the transaction has
been accounted for at historical cost in a manner similar to a pooling of
interests. Accordingly, the shares are considered to be outstanding and the
results of International Technidyne are included in the accompanying financial
statements for all periods presented.

                                       12
<PAGE>
4.    Employee Benefit Plans

Stock-based Compensation Plans

Stock Option Plans
      The Company maintains stock-based compensation plans for its key
employees, directors, and others. Two of these plans permit the grant of
nonqualified and incentive stock options. Two other plans permit the grant of a
variety of stock and stock-based awards as determined by the human resources
committee of the Company's Board of Directors (the Board Committee), including
restricted stock, stock options, stock bonus shares, or performance-based
shares. The option recipients and the terms of options granted under these plans
are determined by the Board Committee. Generally, options granted to date are
exercisable immediately, but are subject to certain transfer restrictions and
the right of the Company to repurchase shares issued upon exercise of the
options at the exercise price, upon certain events. The restrictions and
repurchase rights generally lapse ratably over a one- to ten-year period,
depending on the term of the option, which may range from five to twelve years.
Nonqualified options may be granted at any price determined by the Board
Committee, although incentive stock options must be granted at not less than the
fair market value of the Company's stock on the date of grant. To date, all
options have been granted at fair market value. The Company also has a
directors' stock option plan that provides for the grant of stock options to
outside directors pursuant to a formula approved by the Company's shareholders.
Options awarded under this plan are exercisable six months after the date of
grant and expire three or seven years after the date of grant. In addition to
the Company's stock-based compensation plans, certain officers and key employees
may also participate in the stock-based compensation plans of Thermedics and
Thermo Electron.
      In November 1998, the Company's employees, excluding its officers and
directors, were offered the opportunity to exchange previously granted options
to purchase shares of Company common stock for an amount of options equal to
half of the number of options previously held, exercisable at a price equal to
the fair market value at the time of the exchange offer. Holders of options to
acquire 719,000 shares at a weighted average exercise price of $27.99 per share
elected to participate in this exchange and, as a result, received options to
purchase 360,000 shares of Company common stock at $10.91 per share, which are
included in the 1998 grants in the table below. The other terms of the new
options are the same as the exchanged options except that the holders may not
sell shares purchased pursuant to such new options for six months from the
exchange date. The options exchanged were canceled by the Company.
      In June 1999, the Company awarded 67,000 shares of restricted Company
common stock to certain key employees. The shares had an aggregate value of
$625,000 and vest three years from the date of award, assuming continued
employment, with certain exceptions. The Company has recorded the fair value of
the restricted stock as deferred compensation in the accompanying balance sheet
and is amortizing such amount over the vesting period.

                                       13
<PAGE>
</TABLE>
4.    Employee Benefit Plans (continued)

      A summary of the Company's stock option activity is as follows:
<TABLE>
<CAPTION>
<S>                                             <C>      <C>       <C>       <C>        <C>      <C>
                                                       1999               1998                 1997
                                               ------------------  ------------------  ------------------
                                                         Weighted            Weighted            Weighted
                                                          Average             Average             Average
                                                         Exercise            Exercise            Exercise
                                                            Price               Price               Price
                                                Number              Number               Number
                                                    of                  of                   of
(Shares in thousands)                           Shares              Shares               Shares
- ---------------------------------------------- -------- ---------- -------- ---------- --------- ---------

Options Outstanding, Beginning of Year           1,468     $13.99    1,646     $20.41     1,130    $14.59
 Granted                                           120       9.51      761      12.25       783     27.22
 Exercised                                         (68)      4.51     (159)      4.17      (119)     4.95
 Forfeited                                        (115)     16.91      (61)     26.14      (148)    24.42
 Canceled due to exchange                            -          -     (719)     27.99         -         -
                                                 -----                -----               -----

Options Outstanding, End of Year                  1,405    $13.82     1,468    $13.99     1,646    $20.41
                                                 ======    ======     =====    ======     =====    ======

Options Exercisable                               1,405    $13.82     1,464    $13.96     1,646    $20.41
                                                 ======    ======     =====    ======     =====    ======

Options Available for Grant                       1,015               1,087                 318
                                                 ======               =====               =====
</TABLE>

      A summary of the status of the Company's stock options at January 1, 2000,
is as follows:
<TABLE>
<CAPTION>
<S>                                                  <C>             <C>                         <C>
                                                             Options Outstanding and Exercisable
                                                     -----------------------------------------------------
Range of Exercise Prices                                   Number            Weighted            Weighted
                                                               of             Average             Average
                                                           Shares           Remaining            Exercise
                                                    (In thousands)   Contractual Life               Price
- -------------------------------------------------- --------------- ------------------- -------------------

$  5.76 - $14.02                                            1,028           5.2 years               $11.74
  14.03 -   22.29                                             176           3.6 years                15.87
  22.30 -   30.56                                             199           7.5 years                27.95
  30.57 -   38.83                                               2           2.9 years                38.78
                                                            -----

$  5.76 - $38.83                                            1,405           5.3 years               $13.82
                                                            =====

Employee Stock Purchase Program
      Substantially all of the Company's full-time employees are eligible to
participate in an employee stock purchase program sponsored by the Company and
Thermo Electron. Under this program, shares of the Company's and Thermo
Electron's common stock may be purchased at 85% of the lower of the fair market
value at the beginning or end of the period, and shares purchased are subject to
a one-year resale restriction. Prior to the 1998 program year, the applicable
shares of common stock could be purchased at the end of a 12-month period at 95%
of the fair market value at the beginning of the period, and the shares
purchased were subject to a six-month resale restriction. Shares are purchased
through payroll deductions of up to 10% of each participating employee's gross
wages. During 1999 and 1997, the Company issued 9,100 shares and 435 shares,
respectively, of its common stock under this program. No shares were issued
under this program during 1998.

                                       14
<PAGE>
4.    Employee Benefit Plans (continued)

Pro Forma Stock-based Compensation Expense
      In October 1995, the Financial Accounting Standards Board issued SFAS No.
123, "Accounting for Stock-based Compensation," which sets forth a fair-value
based method of recognizing stock-based compensation expense. As permitted by
SFAS No. 123, the Company has elected to continue to apply APB No. 25 to account
for its stock-based compensation plans. Had compensation cost for awards granted
after 1994 under the Company's stock-based compensation plans been determined
based on the fair value at the grant dates consistent with the method set forth
under SFAS No. 123, the effect on the Company's net income and earnings per
share would have been as follows:

(In thousands except per share amounts)                                         1999       1998      1997
- -------------------------------------------------------------------------- ---------- ---------- ---------

Net Income:
 As reported                                                                  $9,584     $7,820     $9,019
 Pro forma                                                                     7,209      5,911      7,658
Basic and Diluted Earnings per Share:
 As reported                                                                     .25        .20        .23
 Pro forma                                                                       .19        .15        .19

      Because the method prescribed by SFAS No. 123 has not been applied to
options granted prior to January 1, 1995, the resulting pro forma compensation
expense may not be representative of the amount to be expected in future years.
Pro forma compensation expense for options granted is reflected over the vesting
period; therefore, future pro forma compensation expense may be greater as
additional options are granted.
      The weighted average fair value per share of options granted was $3.81,
$5.61, and $15.92 in 1999, 1998, and 1997, respectively. The fair value of each
option grant was estimated on the grant date using the Black-Scholes
option-pricing model with the following weighted-average assumptions:

                                                                                1999       1998      1997
- -------------------------------------------------------------------------- ---------- ---------- ---------

Volatility                                                                       54%        52%        51%
Risk-free Interest Rate                                                         5.6%       4.6%       6.4%
Expected Life of Options                                                   3.1 years  4.4 years  6.6 years

      The Black-Scholes option-pricing model was developed for use in estimating
the fair value of traded options, which have no vesting restrictions and are
fully transferable. In addition, option-pricing models require the input of
highly subjective assumptions including expected stock price volatility. Because
the Company's employee stock options have characteristics significantly
different from those of traded options, and because changes in the subjective
input assumptions can materially affect the fair value estimate, in management's
opinion, the existing models do not necessarily provide a reliable single
measure of the fair value of its employee stock options.

401(k) Savings Plan
      Substantially all of the Company's full-time employees are eligible to
participate in Thermo Electron's 401(k) savings plan. Contributions to the plan
are made by both the employee and the Company. Company contributions are based
upon the level of employee contributions. For these plans, the Company
contributed and charged to expense $726,000, $584,000, and $410,000 in 1999,
1998, and 1997, respectively.


                                       15
<PAGE>
5.    Income Taxes

      The components of income before provision for income taxes and
extraordinary item are as follows:

(In thousands)                                                                     1999      1998    1997
- ------------------------------------------------------------------------------- -------- --------- -------

Domestic                                                                        $11,302  $ 12,506  $14,808
Foreign                                                                             (65)      (67)    (110)
                                                                                -------  --------  -------

                                                                                $11,237  $ 12,439  $14,698
                                                                                =======  ========  =======

      The components of the provision for income taxes are as follows:

(In thousands)                                                                     1999      1998    1997
- ------------------------------------------------------------------------------- -------- --------- -------

Currently Payable:
 Federal                                                                         $2,702    $3,450   $4,838
 State                                                                              943       282    1,011
                                                                                 ------    ------   ------

                                                                                  3,645     3,732    5,849
                                                                                 ------    ------   ------

Net Deferred (Prepaid):
 Federal                                                                           (643)      754     (136)
 State                                                                             (137)      133      (34)
                                                                                 ------    ------   ------

                                                                                   (780)      887     (170)
                                                                                 ------    ------   ------

                                                                                 $2,865    $4,619   $5,679
                                                                                 ======    ======   ======

      The Company receives a tax deduction upon exercise of nonqualified stock
options by employees for the difference between the exercise price and the
market price of the Company's common stock on the date of exercise. The
provision for income taxes that is currently payable does not reflect $226,000
and $1,078,000 of such benefits that have been allocated to capital in excess of
par value in 1998 and 1997, respectively.
      The provision for income taxes in the accompanying statement of income
differs from the provision calculated by applying the statutory federal income
tax rate of 35% to income before provision for income taxes and extraordinary
item due to the following:

 (In thousands)                                                                    1999      1998    1997
 ------------------------------------------------------------------------------ -------- --------- -------

 Provision for Income Taxes at Statutory Rate                                   $ 3,933  $  4,354  $ 5,144
 Increases (Decreases) Resulting From:
  Federal research and development credit claim from prior years                 (1,508)        -        -
  State income taxes, net of federal tax                                            524       270      635
  Foreign sales corporation benefit                                                (116)     (110)    (160)
  Other                                                                              32       105       60
                                                                                -------  --------  -------

                                                                                $ 2,865  $  4,619  $ 5,679
                                                                                =======  ========  =======

      During 1999, the Company received a favorable resolution of a claim for
prior-year research and development tax credits, which reduced the tax provision
by $1,508,000.


                                       16
<PAGE>
</TABLE>


5.    Income Taxes (continued)

      Short- and long-term deferred tax assets in the accompanying balance sheet
consist of the following:
<TABLE>
<CAPTION>
<S>                                                                                       <C>        <C>
(In thousands)                                                                            1999       1998
- ----------------------------------------------------------------------------------- ----------- ----------

 Write-off of acquired technology                                                       $1,556      $1,560
 Depreciation and amortization                                                           1,173       1,146
 Inventory basis difference                                                              1,071         956
 Reserves and accruals                                                                   1,121       1,098
 State tax loss and credit carryforwards                                                   613         683
 Accrued compensation                                                                      983         290
 Allowance for doubtful accounts                                                           340         286
 Other, net                                                                               (118)       (195)
                                                                                        ------      ------

                                                                                        $6,739      $5,824
                                                                                        ======      ======
      The Company has available state net operating loss carryforwards of
$3,622,000, which expire in 2000 through 2004 and state tax credit carryforwards
of $269,000, which expire in 2000 through 2012.

6.    Subordinated Convertible Debentures

      In May 1997, the Company issued and sold at par value $70,000,000
principal amount of 4 3/4% subordinated convertible debentures due 2004, for net
proceeds of $68,028,000. The debentures are convertible into shares of the
Company's common stock at a conversion price of $31.415 per share. The
debentures are guaranteed on a subordinated basis by Thermo Electron. Thermedics
has agreed to reimburse Thermo Electron in the event Thermo Electron is required
to make a payment under the guarantee.
      During 1999, the Company purchased $11,989,000 principal amount of its 4
3/4% subordinated convertible debentures for $9,985,000 in cash, resulting in an
extraordinary gain of $1,212,000, net of taxes of $743,000.
      In January 2000, Thermo Electron announced that it plans to sell the
Company (Note 15). As a result, the Company's subordinated convertible
debentures may be required to be repaid prior to the maturity date of 2004,
depending upon the terms of the sale.
      See Note 10 for the fair value information pertaining to the Company's
subordinated convertible debentures.

7.    Related-party Transactions

Corporate Services Agreement
      The Company and Thermo Electron have a corporate services agreement under
which Thermo Electron's corporate staff provides certain administrative
services, including certain legal advice and services, risk management, certain
employee benefit administration, tax advice and preparation of tax returns,
centralized cash management, and certain financial and other services, for which
the Company pays Thermo Electron annually an amount equal to 0.8% of the
Company's revenues. The Company paid an amount equal to 0.8% and 1.0% of the
Company's revenues in 1998 and 1997, respectively. In addition, the Company uses
data processing services of a majority-owned subsidiary of Thermo Electron, and
accounting, personnel, and administrative services of Thermedics. For these
services, as well as the administrative services provided by Thermo Electron,
the Company was charged $837,000, $768,000, and $963,000 in 1999, 1998, and
1997, respectively. The fee is reviewed and adjusted annually by mutual
agreement of the parties. Management

                                       17
<PAGE>
7.    Related-party Transactions (continued)

believes that the service fees charged by Thermo Electron, its majority-owned
subsidiary, and Thermedics are reasonable and that such fees are representative
of the expenses the Company would have incurred on a stand-alone basis. The
corporate services agreement is renewed annually but can be terminated upon 30
days' prior notice by the Company or upon the Company's withdrawal from the
Thermo Electron Corporate Charter (the Thermo Electron Corporate Charter defines
the relationship among Thermo Electron and its majority-owned subsidiaries). For
additional items such as employee benefit plans, insurance coverage, and other
identifiable costs, Thermo Electron charges the Company based upon costs
attributable to the Company.

Operating Leases
      The Company subleases office and research facilities from Thermedics and
is charged for actual square footage occupied at approximately the same rent
paid per square foot by Thermedics under its prime lease. The sublease expires
in February 2004. The accompanying statement of income includes expenses from
the sublease of $171,000, $151,000, and $170,000 in 1999, 1998, and 1997,
respectively.
      The Company subleases a portion of an office and research facility from
Thermedics Detection Inc., a majority-owned subsidiary of Thermedics, and is
charged for actual square footage occupied at approximately the same rent paid
per square foot by Thermedics Detection under its prime lease. The sublease
expires in December 2000. The accompanying statement of income includes expenses
from the sublease of $65,000, $50,000, and $40,000 in 1999, 1998, and 1997,
respectively.
      Future minimum payments due under these noncancellable lease arrangements
at January 1, 2000, are $253,000 in 2000, $504,000 in 2001 through 2003, and
$27,000 in 2004. Total future minimum lease payments are $784,000.

Related-party Purchases
      Thermo Electron's Tecomet division provides metal fabrication services in
connection with the manufacture of the heart-assist devices sold by the Company.
The Company paid $3,651,000, $1,717,000, and $1,872,000 for these services in
1999, 1998, and 1997, respectively.

Cash Management
      The Company invests excess cash in arrangements with Thermo Electron as
discussed in Note 1.

8.    Commitment and Contingency

Operating Leases
      In addition to the related-party operating leases described in Note 7, the
Company leases manufacturing, office, and research facilities under various
operating lease agreements. The accompanying statement of income includes
expense from these leases of $481,000, $556,000, and $551,000 in 1999, 1998, and
1997, respectively. Future minimum payments due under noncancelable operating
leases at January 1, 2000, are $372,000 in 2000, $362,000 in 2001, $255,000 in
2002, and $26,000 in 2003 through 2004. Total future minimum lease payments are
$1,015,000.

Contingency
      The Company has received correspondence alleging that the textured surface
of the LVAS housing infringed the intellectual property rights of another party.
In general, an owner of intellectual property can prevent others from using such
property without a license and is entitled to damages for unauthorized past
usage. The Company has investigated the bases of the allegation and, based on
the opinion of its counsel and the Company's assessment of the proceedings in
the United States Patent and Trademark Office to date, believes that if the
Company were sued on these bases, it would have meritorious defenses. Given the
inherent uncertainties in dispute resolution, however, if the Company were sued
and the outcome were unfavorable, the Company's results of operations or
financial condition could be materially adversely affected in amounts the
Company cannot reasonably estimate.


                                       18
<PAGE>
9.    Stock Purchase Warrant and Common Stock

      In May 1993, in connection with an agreement to develop a material to be
used in the Company's LVAS, the Company granted to a third party the right to
purchase from the Company 60,000 shares of the Company's common stock at a price
of $5.83 per share, which was the fair market value of the Company's common
stock on the date of grant. This warrant is exercisable immediately and expires
ten years after the date of grant. In February 2000, 60,000 shares of the
Company's common stock were purchased under this warrant.
      At January 1, 2000, the Company had reserved 4,510,000 unissued shares of
its common stock for possible issuance under stock-based compensation plans,
conversion of its outstanding subordinated convertible debentures, and issuance
under the stock purchase warrant.

10.   Fair Value of Financial Instruments

      The Company's financial instruments consist mainly of cash and cash
equivalents, advance to affiliate, available-for-sale investments, accounts
receivable, accounts payable, due to parent company and affiliated companies,
and subordinated convertible debentures. The carrying amounts of these financial
instruments, with the exception of available-for-sale investments and
subordinated convertible debentures, approximate fair value due to their
short-term nature.
      Available-for-sale investments are carried at fair value in the
accompanying balance sheet. The fair values were determined based on quoted
market prices. See Note 2 for fair value information pertaining to these
financial instruments.
      The fair value of the Company's subordinated convertible debentures, based
on quoted market prices, was $47,540,000 and $60,116,000 in 1999 and 1998,
respectively. The fair value is less than the carrying amount in both periods,
primarily due to a decrease in the market price of the Company's common stock
relative to the conversion price of the debentures.

11.   Significant Customer, Export Sales, Concentrations of Risk, and Segment Information

Significant Customer
      Sales to one customer accounted for 21%, 22%, and 24% of the Company's
total revenues in 1999, 1998, and 1997, respectively.

Export Sales
      Export revenues accounted for 16%, 15%, and 17% of the Company's total
revenues in 1999, 1998, and 1997, respectively.

Concentrations of Risk
      Certain raw materials used in the manufacture of the Company's LVAS are
available from only one or two suppliers. The Company is making efforts to
minimize the risks associated with sole sources and ensure long-term
availability, including qualifying alternative materials and components or
developing alternative sources for materials or components supplied by a single
source. Although the Company believes that it has adequate supplies of materials
and components to meet demand for the LVAS for the foreseeable future, no
assurance can be given that the Company will not experience shortages of certain
materials or components in the future that could delay shipments of the LVAS.
      The Company sells its products to customers in the healthcare industry.
The Company does not normally require collateral or other security to support
its accounts receivable. Management does not believe that this concentration of
credit risk has, or will have, a significant negative impact on the Company.

                                       19
<PAGE>
11.   Significant Customer, Export Sales, Concentrations of Risk, and Segment Information (continued)
</TABLE>

Segment Information
      The Company organizes and manages its business by functional operating
entity. The Company's functional entities operate in two segments: Left
Ventricular-assist Systems (LVAS) and Other Medical Equipment. The Company's
LVAS segment researches, develops, and manufactures an implantable pneumatic
LVAS that is powered by an external electrically driven air-pump and an electric
LVAS that is driven by an implanted electric motor and powered by a lightweight
battery pack worn by the patient. The Company's Other Medical Equipment segment
develops, manufactures, and markets near-patient, whole-blood coagulation
testing equipment and related disposables, as well as premium-quality,
single-use, skin-incision devices.
<TABLE>
<CAPTION>
<S>                                                                              <C>       <C>         <C>
(In thousands)                                                                   1999      1998        1997
- --------------------------------------------------------------------------- ---------- ---------- ---------

Business Segment Information
Revenues:
 Left Ventricular-assist Systems                                            $  40,289  $  30,303  $ 26,960
 Other Medical Equipment                                                       38,801     36,545    35,874
                                                                            ---------  ---------  --------

                                                                            $  79,090  $  66,848  $ 62,834
                                                                            =========  =========  ========

Income Before Provision for Income Taxes and Extraordinary Item:
 Left Ventricular-assist Systems                                            $    (250) $     344  $  3,107
 Other Medical Equipment                                                        8,789      8,978     8,317
 Corporate (a)                                                                   (837)      (768)     (963)
                                                                            ---------  ---------  --------

 Total operating income                                                         7,702      8,554    10,461
 Interest and other income, net                                                 3,535      3,885     4,237
                                                                            ---------  ---------  --------

                                                                            $  11,237  $  12,439  $ 14,698
                                                                            =========  =========  ========

Total Assets:
 Left Ventricular-assist Systems                                            $  26,650  $  23,735  $ 26,451
 Other Medical Equipment                                                       17,935     16,638    18,015
 Corporate (b)                                                                125,343    131,990   128,742
                                                                            ---------  ---------  --------

                                                                            $ 169,928  $ 172,363  $173,208
                                                                            =========  =========  ========

Depreciation and Amortization:
 Left Ventricular-assist Systems                                            $   1,432  $   1,312  $  1,032
 Other Medical Equipment                                                        1,448      1,675     1,539
                                                                            ---------  ---------  --------

                                                                            $   2,880  $   2,987  $  2,571
                                                                            =========  =========  ========

Capital Expenditures:
 Left Ventricular-assist Systems                                            $   1,103  $     961  $  1,386
 Other Medical Equipment                                                        1,437        638       947
                                                                            ---------  ---------  --------

                                                                            $   2,540  $   1,599  $  2,333
                                                                            =========  =========  ========

(a)  Primarily general and administrative expenses.
(b)  Primarily cash, cash equivalents, available-for-sale investments, and
     advance to affiliate.

                                       20
<PAGE>
12.   Earnings per Share

      Basic and diluted earnings per share were calculated as follows:

(In thousands except per share amounts)                                            1999      1998    1997
- ------------------------------------------------------------------------------- -------- --------- -------

Basic
Net Income                                                                      $ 9,584  $  7,820  $ 9,019
                                                                                -------  --------  -------

Weighted Average Shares                                                          38,443    38,810   39,482
                                                                                -------  --------  -------

Basic Earnings per Share                                                        $   .25  $    .20  $   .23
                                                                                =======  ========  =======

Diluted
Net Income                                                                      $ 9,584  $  7,820  $ 9,019
                                                                                -------  --------  -------

Basic Weighted Average Shares                                                    38,443    38,810   39,482
Effect of:
 Convertible debentures                                                               -         -        2
 Stock options                                                                       39       175      281
                                                                                -------  --------  -------

Weighted Average Shares, as Adjusted                                             38,482    38,985   39,765
                                                                                -------  --------  -------

Diluted Earnings per Share                                                      $   .25  $    .20  $   .23
                                                                                =======  ========  =======

      Options to purchase 1,426,000, 1,052,000, and 763,000 shares of common
stock were not included in the computation of dilution earnings per share for
1999, 1998, and 1997, respectively, because their effect would have been
antidilutive due to the options' exercise prices exceeding the average market
price for the common stock.
      In addition, the computation of diluted earnings per share excludes the
effect of assuming the conversion of the Company's 4 3/4% subordinated
convertible debentures, convertible at $31.415 per share, because the effect
would be antidilutive. The principal amount of the debentures was $58,011,000,
$70,000,000, and $70,000,000 at year-end 1999, 1998, and 1997, respectively.
      An extraordinary gain recorded by the Company increased basic and diluted
earnings per share by $.03 in 1999 (Note 6).

13.    Comprehensive Income
</TABLE>

      Comprehensive income combines net income and "other comprehensive items,"
which represents certain amounts that are reported as components of
shareholders' investment in the accompanying balance sheet, including foreign
currency translation adjustments and unrealized net of tax gains and losses on
available-for-sale investments.
        Accumulated other comprehensive items in the accompanying balance sheet
consist of the following:
<TABLE>
<CAPTION>
<S>                                                                                          <C>     <C>
(In thousands)                                                                               1999    1998
- -------------------------------------------------------------------------- --------------- --------- ------

Cumulative Translation Adjustment                                                          $   47    $   29
Net Unrealized Gain (Loss) on Available-for-sale Investments                                 (338)      120
                                                                                           ------    ------

                                                                                           $ (291)   $  149
                                                                                           ======    ======

</TABLE>

                                       21
<PAGE>
13.   Comprehensive Income (continued)

      Unrealized gains (losses) on available-for-sale investments, a component
of other comprehensive items, in the accompanying statement of comprehensive
income and shareholders' investment, includes the following:
<TABLE>
<CAPTION>
<S>                                                                            <C>        <C>        <C>
(In thousands)                                                                 1999       1998       1997
- ------------------------------------------------------------------------ ----------- ---------- ----------

Unrealized Holding Gains (Losses) Arising During the Year (net               $ (458)     $  38      $  144
 of income tax (provision) benefit of $257, $(21), and $(82))
Reclassification Adjustment for Gains Included in Net Income                      -        (18)         (3)
 (net of income tax provision of $0, $10, and $2)                            ------      -----      ------

Net Unrealized Gains (Losses) (net of income tax (provision)                 $ (458)     $  20      $  141
 benefit of $257, $(11), and $(80))                                          ======      =====      ======
</TABLE>

14.   Unaudited Quarterly Information

(In thousands except per share amounts)
<TABLE>
<CAPTION>
<S>                                                              <C>        <C>         <C>     <C>
1999                                                              First      Second      Third  Fourth (a)
- ------------------------------------------------------------- ---------- ----------- ---------- -----------

Revenues                                                         $19,461    $20,215     $19,738    $19,676
Gross Profit                                                     11,094      11,699     11,170      11,388
Income Before Extraordinary Item                                  1,773       2,010      2,845       1,744
Net Income                                                        1,773       2,010      2,845       2,956
Basic and Diluted Earnings per Share                                .05         .05        .07         .08

1998                                                              First      Second      Third      Fourth
- ------------------------------------------------------------- ---------- ----------- ---------- -----------

Revenues                                                         $16,485    $16,133     $15,798    $18,432
Gross Profit                                                      9,576       9,266      8,738      10,863
Net Income                                                        2,308       1,850      1,438       2,224
Basic and Diluted Earnings per Share                                .06         .05        .04         .06

(a) Reflects an extraordinary gain of $1.2 million, net of taxes of $0.7 million.

15.   Subsequent Event

      On January 31, 2000, Thermo Electron announced that it plans to sell the
Company. This action is part of a major reorganization plan under which Thermo
Electron will spin in, spin off, and sell various businesses to focus solely on
its core measurement and detection instruments business.

                                       22
<PAGE>
Thermo Cardiosystems Inc.                                                        1999 Financial Statements

                                 Report of Independent Public Accountants

To the Shareholders and Board of Directors of Thermo Cardiosystems Inc.:

      We have audited the accompanying consolidated balance sheet of Thermo
Cardiosystems Inc. (a Massachusetts corporation and 60%-owned subsidiary of
Thermedics Inc.) and subsidiaries as of January 1, 2000, and January 2, 1999,
and the related consolidated statements of income, cash flows, and comprehensive
income and shareholders' investment for each of the three years in the period
ended January 1, 2000. These consolidated financial statements are the
responsibility of the Company's management. Our responsibility is to express an
opinion on these consolidated financial statements based on our audits.
      We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the consolidated financial statements are
free of material misstatement. An audit includes examining, on a test basis,
evidence supporting the amounts and disclosures in the financial statements. An
audit also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audits provide a reasonable basis
for our opinion.
      In our opinion, the consolidated financial statements referred to above
present fairly, in all material respects, the financial position of Thermo
Cardiosystems Inc. and subsidiaries as of January 1, 2000, and January 2, 1999,
and the results of their operations and their cash flows for each of the three
years in the period ended January 1, 2000, in conformity with generally accepted
accounting principles.



                                        Arthur Andersen LLP



Boston, Massachusetts
February 10, 2000

                                       23
<PAGE>
Thermo Cardiosystems Inc.                                                        1999 Financial Statements

                                 Management's Discussion and Analysis of
                              Financial Condition and Results of Operations

      Forward-looking statements, within the meaning of Section 21E of the
Securities Exchange Act of 1934, are made throughout this Management's
Discussion and Analysis of Financial Condition and Results of Operations. For
this purpose, any statements contained herein that are not statements of
historical fact may be deemed to be forward-looking statements. Without limiting
the foregoing, the words "believes," "anticipates," "plans," "expects," "seeks,"
"estimates," and similar expressions are intended to identify forward-looking
statements. There are a number of important factors that could cause the results
of the Company to differ materially from those indicated by such forward-looking
statements, including those detailed immediately after this Management's
Discussion and Analysis of Financial Condition and Results of Operation under
the heading "Forward-looking Statements."

Overview

      The Company's businesses operate in two segments: Left Ventricular-assist
Systems (LVAS) and Other Medical Equipment. The LVAS segment researches,
develops, and manufactures two implantable heart-assist devices: a pneumatic, or
air-driven, system, and an electric version. Its HeartMate(R) devices are
designed to perform substantially all or part of the pumping function of the
left ventricle of the natural heart for patients suffering from cardiovascular
disease. This segment includes the Company's Nimbus Medical Inc. subsidiary.
Nimbus has been involved in artificial heart technology for over 20 years and
has carried out research in two primary fields: ventricular-assist devices and
total artificial hearts. Nimbus was instrumental in developing the basic
technology for the high-speed rotary blood pump that is the basis for the
HeartMate II, the next generation of the Company's LVAS. Because of its smaller
size, the HeartMate II may potentially be used to provide cardiac support in
small adults and in children.
      The Other Medical Equipment segment consists of International Technidyne
Corporation, a leading manufacturer of near-patient, whole-blood coagulation
testing equipment and related disposables, as well as premium-quality,
single-use, skin-incision devices.
      In general, a profit cannot be earned from the sale of an LVAS in the
United States until approval of the device has been received from the U.S. Food
and Drug Administration (FDA) for commercial sale. Until such approval was
obtained, only the direct and indirect costs of the LVAS could be recovered,
which were included in the Company's revenues. With the FDA's approval of the
air-driven LVAS, the Company began earning a profit on the sale of such systems
in 1994. In September 1998, the FDA granted approval for commercial sale in the
U.S. of the electric LVAS as a bridge to transplant. As a result, the Company
earns a profit on the sale of that device. Following FDA approval of the
electric LVAS, the Company increased the price of the electric LVAS by
approximately 13%, effective November 1998.
      On January 31, 2000, Thermo Electron Corporation announced that it plans
to sell the Company, as part of a major reorganization plan (Note 15).

Results of Operations

1999 Compared With 1998
      Total revenues increased to $79.1 million in 1999 from $66.8 million in
1998. LVAS segment revenues increased to $40.3 million in 1999 from $30.3
million in 1998. The increase in LVAS segment revenues was primarily due to a
$17.1 million increase in revenues from the Company's electric LVAS due to an
increase in demand as a result of FDA approval for commercial sale, which was
granted in September 1998 and, to a lesser extent, a 13% price increase for the
electric LVAS, effective November 1998. These increases in revenues were offset
in part by a $7.4 million decrease in revenues from the Company's air-driven
LVAS due to a shift to the electric LVAS and a $1.1 million decrease in revenues
at Nimbus due to the expiration of several government research and development
contracts. For the foreseeable future, the Company expects that Nimbus will
focus on technological research, as well as compete for new government
contracts.
      Other Medical Equipment segment revenues increased to $38.8 million in
1999 from $36.5 million in 1998, primarily due to a $2.0 million increase in
revenues from the Company's skin-incision devices and ProTime(R)
Microcoagulation System, due to an increase in demand.

                                       24
<PAGE>
1999 Compared With 1998 (continued)
      The gross profit margin decreased slightly to 57.3% in 1999 from 57.5% in
1998. The gross profit margin in the Other Medical Equipment segment decreased
primarily due to changes in product mix and pricing strategies. This decrease
was offset in part by an increase in the gross profit margin in the LVAS segment
primarily due to an increase in demand resulting in higher overhead absorption
and, to a lesser extent, a decrease in lower-margin revenues from government
contracts at Nimbus. The increase in the gross profit margin, related to a 13%
price increase for the electric LVAS, was offset by lower sales of the higher
margin air-driven LVAS.
      Selling, general, and administrative expenses as a percentage of revenues
remained unchanged at 28% in 1999 and 1998. Selling, general, and administrative
expenses increased to $22.0 million in 1999 from $19.0 million in 1998,
primarily due to a $1.5 million increase in costs for sales and marketing staff
in the LVAS segment and, to a lesser extent, higher advertising costs relating
to the electric LVAS, which was approved by the FDA for commercial sale in
September 1998. The Company plans to continue funding these efforts during
fiscal 2000, which may adversely affect the Company's operating results.
      Research and development expenses increased to $15.6 million, or 20% of
revenues, in 1999 from $10.9 million, or 16% of revenues, in 1998, primarily due
to a $2.7 million increase in expenses in the LVAS segment relating to a
clinical trial that is currently being conducted to evaluate the electric LVAS
as an alternative to medical therapy. The Company expects research and
development expenses to continue to increase over the life of the clinical
trial, which is estimated to be two to three years. There can be no assurance
that the Company will complete this study. To a lesser extent, research and
development expenses increased due to increased product development activities
in the Other Medical Equipment segment.
      Interest income decreased to $7.1 million in 1999 from $7.4 million in
1998, primarily due to a decrease in interest rates and, to a lesser extent,
lower average invested balances. Interest expense was $3.6 million in both
periods.
      The effective tax rate of 25% in 1999 resulted from a favorable resolution
of the Company's claim for prior-year research and development tax credits. The
effect of the credit decreased the tax provision recorded in 1999 by $1.5
million. The effective tax rate of 37% in 1998 exceeded the statutory federal
income tax rate primarily due to the impact of state income taxes.
      The Company recorded an extraordinary gain of $1.2 million in 1999 as a
result of the purchase by the Company of $12.0 million principal amount of its 4
3/4% subordinated convertible debentures (Note 6).

1998 Compared With 1997
      Total revenues increased to $66.8 million in 1998 from $62.8 million in
1997. LVAS segment revenues increased to $30.3 million in 1998 from $27.0
million in 1997. The increase in LVAS segment revenues was primarily due to a
$3.3 million increase in revenues from the Company's electric LVAS due to an
increase in demand as a result of FDA approval for commercial sale, which was
granted in September 1998 and, to a lesser extent, a price increase for the
electric LVAS and a $0.8 million increase in sales of the air-driven LVAS. These
increases were offset in part by a $0.4 million decrease in revenues at Nimbus
due to the expiration of several government research and development contracts.
      Other Medical Equipment segment revenues increased to $36.5 million in
1998 from $35.9 million in 1997, primarily due to a $1.0 million increase in
demand for the Company's skin-incision devices, offset in part by a decrease in
demand for the Company's whole-blood coagulation testing equipment.
      The gross profit margin increased to 58% in 1998 from 57% in 1997. The
gross profit margin in the Other Medical Equipment segment increased primarily
due to manufacturing efficiencies and cost reduction efforts implemented in
1998. The gross profit margin in the LVAS segment was unchanged.
      Selling, general, and administrative expenses as a percentage of revenues
increased to 28% in 1998 from 26% in 1997, primarily in the LVAS segment, due to
a $1.7 million increase in costs for sales and marketing staff and, to a lesser
extent, higher advertising costs in anticipation of increased electric LVAS
sales following FDA approval, which was granted in September 1998.

                                       25
<PAGE>
1998 Compared With 1997 (continued)
      Research and development expenses increased to $10.9 million in 1998 from
$8.7 million in 1997. This increase is primarily due to $1.5 million of expenses
associated with a clinical trial being conducted by the LVAS segment to evaluate
the electric LVAS as an alternative to medical therapy, which commenced in
December 1997.
      Interest income increased to $7.4 million in 1998 from $6.5 million in
1997, primarily as a result of higher average invested balances resulting from
the issuance of $70.0 million principal amount of 4 3/4% subordinated
convertible debentures in May 1997 (Note 6).
      Interest expense increased to $3.6 million in 1998 from $2.2 million in
1997, primarily due to the inclusion of a full year of interest expense as a
result of the issuance of the 4 3/4% subordinated convertible debentures.
      The effective tax rate was 37% and 39% in 1998 and 1997, respectively. The
effective tax rates exceeded the statutory federal income tax rate primarily due
to the impact of state income taxes. The effective tax rate decreased in 1998
due to a decrease in income allocated to state tax jurisdictions with higher tax
rates.

Liquidity and Capital Resources

      Consolidated working capital was $115.5 million at January 1, 2000,
compared with $98.9 million at January 2, 1999. Cash, cash equivalents, and
short- and long-term available-for-sale investments were $111.1 million at
January 1, 2000, compared with $132.6 million at January 2, 1999. In addition,
as of January 1, 2000, the Company had $14.0 million invested in an advance to
affiliate. Prior to the use of a new domestic cash management arrangement
between the Company and Thermo Electron, which became effective June 1999,
amounts invested with Thermo Electron were included in cash and cash
equivalents. During 1999, $6.7 million of cash was provided by operating
activities. An increase in inventories used $3.0 million of cash, primarily due
to higher inventory levels in response to increased product demand. Cash of $2.3
million was used to fund an increase in accounts receivable, primarily due to
higher revenues. An increase in current liabilities provided $0.7 million of
cash, primarily due to the timing of payments.
      During 1999, the Company's primary investing activity, excluding advance
to affiliate and available-for-sale investments activity, was the purchase of
property, plant, and equipment for $2.5 million. During 2000, the Company
expects to make capital expenditures of approximately $4.0 million, primarily
for manufacturing and tooling equipment and leasehold improvements.
      During 1999, the Company used $10.9 million of cash to purchase Company
common stock and subordinated convertible debentures pursuant to authorizations
by the Company's Board of Directors. At January 1, 2000, the Company had a
remaining authorization to purchase $15.1 million of Company common stock in the
open market or negotiated transactions through October 28, 2000. Any such
repurchases are funded from working capital.
      At January 1, 2000, the Company had outstanding $58.0 million principal
amount of 4 3/4% subordinated convertible debentures due 2004 (Note 6). As a
result of Thermo Electron's plan to sell the Company (Note 15), these debentures
may be required to be repaid prior to the maturity date of 2004, depending upon
the terms of the sale.
      The Company believes that it has adequate resources to meet its financial
needs for the foreseeable future.


                                       26
<PAGE>
Market Risk

      The Company is exposed to market risk from changes in interest rates and
equity prices, which could affect its future results of operations and financial
condition. The Company manages its exposure to these risks through its regular
operating and financing activities.

Interest Rates
      The Company's available-for-sale investments and subordinated convertible
debentures are sensitive to changes in interest rates. Interest rate changes
would result in a change in the fair value of these financial instruments due to
the difference between the market interest rate and the rate at the date of
purchase of the financial instrument. A 10% decrease in year-end 1999 and 1998
market interest rates would result in a negative impact to the Company of $0.4
million and $6.2 million, respectively, on the net fair value of its
interest-sensitive financial instruments. The change in the net fair value from
1998 to 1999 is primarily due to a decrease in the market interest rate relative
to the interest rate of the convertible debentures.

Equity Prices
      The Company's subordinated convertible debentures are sensitive to
fluctuations in the price of the Company's common stock into which the
debentures are convertible. Changes in equity prices would result in changes in
the fair value of the Company's subordinated convertible debentures due to the
difference between the current market price and the market price at the date of
issuance of the debentures. A 10% increase in the year-end 1999 and 1998 market
equity prices would result in a negative impact to the Company of $29,000 and
$1.6 million, respectively, on the net fair value of its subordinated
convertible debentures. The change in the net fair value from 1998 to 1999 is
primarily due to a decrease in the market price of the Company's common stock
relative to the conversion price of the debentures.

Year 2000

      As of the date of this report, the Company has completed its year 2000
initiatives, which included: (i) testing and upgrading significant information
technology systems and facilities; (ii) testing and developing upgrades, if
necessary for the Company's current products and certain discontinued products;
(iii) assessing the year 2000 readiness of its key suppliers, vendors, and
customers; and (iv) developing contingency plans.
      As a result of completing these initiatives, the Company believes that all
of its material information technology systems, critical non-information
technology systems and all of its material products are year 2000 compliant. In
addition, the Company is not aware of any significant supplier or vendor that
has experienced material disruption due to year 2000 issues. The Company has
also developed a contingency plan to allow its primary business operations to
continue despite disruptions due to year 2000 problems, if any, that might yet
arise in the future. The costs incurred to date by the Company in connection
with the year 2000 issue have not been material.
      While the Company to date has been successful in minimizing negative
consequences arising from year 2000 issues, there can be no assurance that in
the future the Company's business operations or financial condition may not be
impacted by year 2000 problems, such as increased warranty claims, vendor and
supplier disruptions, or litigation relating to year 2000 issues.


                                       27
<PAGE>
Thermo Cardiosystems Inc.                                                        1999 Financial Statements

                         Forward-looking Statements

      In connection with the "safe harbor" provisions of the Private Securities
Litigation Reform Act of 1995, the Company wishes to caution readers that the
following important factors, among others, in some cases have affected, and in
the future could affect, the Company's actual results and could cause its actual
results in 2000 and beyond to differ materially from those expressed in any
forward-looking statements made by, or on behalf of, the Company.

      Uncertainty of Regulatory Approval for Biomedical Devices. The Company's
biomedical devices, including its left ventricular-assist systems (LVAS), are
subject to approval by the U.S. Food and Drug Administration (FDA) before
commercial sale of such devices may commence in the U.S. The Company is also
subject to regulatory requirements in foreign countries in which the Company
markets its devices. The process of obtaining regulatory approvals is lengthy,
expensive, and inherently uncertain. Even after FDA and other regulatory
approvals have been obtained, such approvals can be suspended or revoked if the
Company's products do not continue to satisfy regulatory requirements. Failure
to comply with applicable regulatory requirements can result in, among other
things, fines, suspensions of approvals, recalls of products, operating
restrictions, and criminal prosecutions.
      In October 1994, the Company received FDA approval for the commercial sale
of its pneumatic LVAS. In April 1994, the Company received the CE Mark for
commercial sale of the pneumatic LVAS in all European Union countries. The
Company's HeartPak(TM) portable console received the CE Mark in February 1995
and the HeartPak is currently in Phase I clinical trials in the U.S. In
September 1998, the Company's electric LVAS received premarket approval by the
FDA for use as a bridge to transplant. The electric LVAS received the CE Mark in
August 1995 for use as a bridge to transplant and as an alternative to
transplant. The Company's electric LVAS is currently in use in clinical trials
in the U.S. testing the safety and efficacy of the device as an alternative to
transplant.
      Significant design changes to the Company's LVAS, including use of the
portable console for the pneumatic LVAS, must be approved pursuant to a
supplement to an approved PMA application. Failure of the Company to obtain FDA
approval for the commercial sale of the electric LVAS as an alternative to
transplant, would have a material adverse effect on the Company's long-term
growth prospects. In addition, failure of the Company to obtain approval for the
HeartPak portable console would likely require patients supported by the
pneumatic LVAS to remain hospitalized. This could materially restrict the market
for the pneumatic LVAS.

      Uncertainty of Patient Reimbursement. The cost of implanting a cardiac
support system is substantial. In addition, the Company's coagulation testing
equipment can cost several thousand dollars per instrument. Without the
financial support of the government or third-party insurers, the market for the
Company's devices and equipment will be limited. Medicare and Medicaid limit the
reimbursement that U.S. hospitals receive for treating certain medical
conditions by setting maximum fees that can be charged to their patients. Under
these systems, hospitals are paid a fixed amount for treating each patient with
a particular diagnosis. Private insurers also have initiated reimbursement
systems designed to slow the escalation of healthcare costs. In addition, the
federal government is considering, and certain state governments are considering
or have adopted, new healthcare policies intended to curb rising costs. Such
policies include rationing of government-funded reimbursement for healthcare
services and imposing price controls upon providers of medical products and
services. These policies could have the effect of limiting the availability of
reimbursement for procedures, such as the implantation of an LVAS, that involve
prolonged treatment of critically ill patients.
      In November 1995, the U.S. Health Care Finance Administration (HCFA)
issued a decision that extends Medicare coverage to LVAS devices used as a
bridge to heart transplant, which fulfill certain Medicare coverage criteria.
This decision, updated in April 1997, has applied to the Company's pneumatic
LVAS and has been extended to the electric LVAS. Several major non-government
insurers have also agreed to offer coverage for the pneumatic LVAS and the
electric LVAS; however, no assurance can be given that additional third-party
payors will cover the electric LVAS immediately because of the device's intended
out-patient use. Even though reimbursement has been established by HCFA and by
certain non-government insurers for LVAS devices, the Medicare coverage criteria
could be amended or revised by HCFA, the amount of available reimbursement may
change, and reimbursement may be denied by an insurer under certain
circumstances, including if it is determined that a procedure was not the most
cost-


                                       28
<PAGE>
effective treatment method, was experimental, or was used for an unapproved
indication. No assurance can be given that additional third-party reimbursement
for the LVAS devices will be granted within a reasonable period of time, or at
all. The unavailability of third-party reimbursement for procedures involving
the Company's systems or for the Company's biomedical devices would have a
material adverse effect on the Company's business.

      Uncertainty of Opinion Leader Acceptance and Support. A limited number of
cardiac surgeons and cardiologists influence medical device selection and
purchase decisions for a large portion of the target patient population. The
Company will achieve its business objectives only if its LVAS are recommended
for use by such opinion leaders. In addition, acceptance by these physicians of
the Company's whole-blood coagulation monitoring systems and Coumadin monitors
is also important to the success of the Company's business. The Company has
developed working relationships with a number of leading medical centers, and
its existing and proposed LVAS and its blood coagulation monitoring systems have
been well received by opinion leaders in cardiac surgery and cardiology.
Moreover, since the inception of its work on cardiac support systems in 1966,
the Company has relied upon surgical teams at medical institutions to perform
clinical trials that are necessary for obtaining FDA approvals. A continuing
working relationship with those and other institutions will be important to the
success of the Company. No assurance can be given that existing relationships
and arrangements can be maintained or that new relationships will be
established. Furthermore, economic, psychological, ethical, and other concerns
may limit acceptance of heart-assist devices in general, and there can be no
assurance that markets of sufficient size will develop for the Company's LVAS.

      Technological Change, Competition, and New Products. The Company is aware
of one other company that has received a premarket approval from the FDA for an
implantable LVAS that competes with the Company's LVAS. Also, the Company is
aware of one other company that has received commercial approval from the FDA
for its cardiac assist device. In addition, there are many organizations engaged
in the development of various types of cardiac support systems, including a
total artificial heart. As other organizations realize the commercial potential
for LVAS, the Company believes that competition will intensify. Further, the
Company has several competitors in the coagulation monitoring instrument market.
Although the length of the regulatory approval process for medical equipment and
devices such as LVAS is a barrier to entry into these markets, the Company's
products could be rendered obsolete or uneconomical by technological advances by
one or more of the Company's present competitors or by future entrants into the
markets in which the Company competes. Many manufacturers of medical devices
have greater research and development, manufacturing, and marketing resources
than those of the Company.
      Further, in September 1998, the Company's electric LVAS received FDA
approval for use as a bridge to transplant. That device is currently in use in
clinical trials in the U.S. to test the safety and efficacy of the device as an
alternative to transplant. In addition, the Company is currently devoting
significant resources to the development of new products, including its
Heartmate II and Heartmate III. Because the electric LVAS is new to the market,
there can be no assurance that difficulties with the product will not arise, or
if problems do arise that the Company can adequately correct them. Also, there
can be no assurance that the Company will successfully complete the development
of new products in a timely basis or at all. Any failure to complete development
of new products or the failure of the performance of the Company's current
products could have a material adverse affect on the Company's business and
results of operations.

      Availability of Components and Raw Materials. The Company relies on a
number of custom-designed components and materials supplied by other companies
to manufacture its LVAS. The Company is making efforts to minimize the risks
associated with sole sources and ensure long-term availability, including
qualifying alternative materials and components or developing alternative
sources for materials and components supplied by a single source. Although the
Company believes that it has adequate supplies of materials and components to
meet demand for its products for the foreseeable future, no assurance can be
given that the Company will not experience shortages of certain materials or
components in the future that could delay shipments of its products. The cost to
the Company to

                                       29
<PAGE>
evaluate and test alternative materials and components and the time necessary to
obtain FDA approval for these materials are inherently difficult to determine
because both time and cost are dependent on at least two factors: the similarity
of the alternative material or component to the original material or component,
and the amount of third-party testing that may have already been completed on
alternative materials or components. There can be no assurance that the
substitution of alternative materials or components would not cause delays in
the Company's LVAS development programs or adversely affect the Company's
ability to manufacture and ship LVAS to meet demand.

      Intellectual Property Rights. The Company relies principally upon trade
secret protection and, to a lesser extent, patents to protect its proprietary
rights with respect to its LVAS and its reagents, however, with respect to its
coagulation equipment and skin-incision products, the Company relies principally
on patents to protect its proprietary rights. No assurance can be given that the
Company will be able to effectively protect its patents and trade secrets, or
that competitors will not independently develop equivalent technology or design
around the Company's patents. The Company's competitive position could be
adversely affected if the Company is unable to protect adequately its
proprietary rights. In addition, there can be no assurance that third parties
will not assert claims against the Company that the Company infringes the
intellectual property rights of such parties. The Company could incur
substantial costs and diversion of management resources with respect to the
defense of any such claims, which could have a material adverse effect on the
Company's business, financial condition, and results of operations. Furthermore,
parties making such claims could secure a judgment awarding substantial damages,
as well as injunctive or other equitable relief, which could effectively block
the Company's ability to make, use, sell, distribute, or market its products and
services in the U.S. or abroad. In the event that a claim relating to
intellectual property is asserted against the Company, the Company may seek
licenses to such intellectual property. There can be no assurance, however, that
such licenses could be obtained on commercially reasonable terms, if at all. The
failure to obtain the necessary licenses or other rights could preclude the
sale, manufacture, or distribution of the Company's products and, therefore,
could have a material adverse effect on the Company's business, financial
condition, and results of operations. The Company has received correspondence
from a third party alleging that the textured surface of the LVAS infringes
certain patent rights of such third party. The Company believes that it has
meritorious defenses to the claims of the third party. However, no assurance can
be given that the Company would be successful if litigation was commenced or
that others will not claim that the Company infringes their intellectual
property rights.

      Limited Manufacturing and Marketing Experience. Prior to FDA approval of
commercial sale of the pneumatic LVAS, the Company's LVAS business was engaged
only in research and development. Since that time, the Company has been building
its manufacturing, marketing, and sales capabilities. Although the Company has
not experienced difficulties in manufacturing its LVAS at volume, cost, and
quality levels sufficient to satisfy the increased demand resulting from
commercial approval, no assurance can be given that the Company will not
encounter difficulties as sales volumes increase or new products and/or
components are approved for commercial sale. The Company does not have
experience in the large-scale commercialization of LVAS medical devices.
Although the Company has added sales and marketing staff and is expanding its
distribution capabilities worldwide, no assurance can be given that the Company
will be able to market and sell its LVAS products successfully in high volumes.

      Product Liability. The Company faces an inherent business risk of exposure
to product liability claims relating to the use of its products. This risk may
increase as the number of LVAS implants increase and as the number of centers
implanting the device expands. Although the Company currently maintains product
liability insurance against this risk, there can be no assurance that it will
continue to be able to obtain such coverage at economically feasible rates, if
at all, or that such coverage will be adequate in terms and scope to completely
protect the Company in the event of a successful product liability claim.

                                       30
<PAGE>
      International Operations and International Sales. In 1999, sales
originating outside the U.S. and U.S. export sales accounted for approximately
17% of the Company's total revenues. The Company anticipates that sales outside
the U.S. and U.S. export sales will continue to account for a significant
percentage of the Company's total revenues. The Company intends to continue to
expand its presence in international markets. International revenues are subject
to a number of risks, including the following: agreements may be difficult to
enforce and receivables difficult to collect through a foreign country's legal
system; foreign customers may have longer payment cycles; foreign countries may
impose additional withholding taxes or otherwise tax the Company's foreign
income, impose tariffs or adopt other restrictions on foreign trade; U.S. export
licenses may be difficult to obtain; the protection of intellectual property in
foreign countries may be more difficult to enforce; and fluctuations in exchange
rates may affect product demand and may adversely affect the profitability in
U.S. dollars of products and services provided by the Company in foreign markets
where payment for the Company's products and services is made in the local
currency. There can be no assurance that any of these factors will not have a
material effect on the Company's business and results of operations.

      Risks Associated with Cash Management Arrangement with Thermo Electron.
The Company participates in a cash management arrangement with Thermo Electron.
Under this cash management arrangement, the Company lends its excess cash to
Thermo Electron on an unsecured basis. The Company has the contractual right to
withdraw its funds invested in the cash management arrangement upon 30 days'
prior notice. Thermo Electron is contractually required to maintain cash, cash
equivalents and/or immediately available bank lines of credit equal to at least
50% of all funds invested under the cash management arrangement by all Thermo
Electron subsidiaries other than wholly owned subsidiaries. The funds are held
on an unsecured basis and therefore are subject to the credit risk of Thermo
Electron. The Company's ability to receive its cash upon notice of withdrawal
could be adversely affected if participants in the cash management arrangement
demand withdrawal of their funds in an aggregate amount in excess of the 50%
reserve required to be maintained by Thermo Electron. In the event of a
bankruptcy of Thermo Electron, the Company would be treated as an unsecured
creditor and its right to receive funds from the bankruptcy estate would be
subordinated to secured creditors and would be treated on a pari passu basis
with all other unsecured creditors. Further, all cash withdrawn by the Company
from the cash management arrangement within one year before the bankruptcy would
be subject to rescission. The inability of Thermo Electron to return the
Company's cash on a timely basis or at all could have a material adverse effect
on the Company's results of operations and financial position.


</TABLE>


                                       31
<PAGE>

<TABLE>
<CAPTION>

Thermo Cardiosystems Inc.                                                        1999 Financial Statements

                                      Selected Financial Information

<S>                                                  <C>            <C>     <C>        <C>          <C>
(In thousands except per share amounts)              1999 (a)       1998    1997 (b)   1996 (c)     1995
- --------------------------------------------------- ---------- ---------- ----------- ---------- ---------

Statement of Income Data
Revenues                                             $ 79,090   $ 66,848   $  62,834   $ 63,962   $ 52,880
Income Before Extraordinary Item                        8,372      7,820       9,019     10,030     11,135
Net Income                                              9,584      7,820       9,019     10,030     11,135
Earnings per Share:
 Basic                                                    .25        .20        .23         .25        .29
 Diluted                                                  .25        .20        .23         .25        .27

Balance Sheet Data
Working Capital                                      $115,471   $ 98,904   $ 136,702   $ 65,328   $ 64,610
Total Assets                                          169,928    172,363     173,208    124,978    124,285
Long-term Obligations                                  58,011     70,000      70,000          -     11,642
Shareholders' Investment                               96,940     88,714      92,963    111,089    103,416

(a) Reflects the repurchase of $11,989,000 principal amount of 4 3/4%
    subordinated convertible debentures resulting in an extraordinary gain of
    $1,212,000, net of taxes of $743,000.
(b) Reflects the May 1997 issuance of $70,000,000 principal amount of 4 3/4%
    subordinated convertible debentures due 2004 and conversion of $3,755,000
    principal amount of noninterest-bearing subordinated convertible
    obligations.
(c) Reflects conversion of $7,887,000 principal amount of noninterest-bearing
    subordinated convertible obligations.

                                       32
<PAGE>
Thermo Cardiosystems Inc.                                                        1999 Financial Statements
Common Stock Market Information
      The Company's common stock is traded on the American Stock Exchange under
the symbol TCA. The following table sets forth the high and low sale prices of
the Company's common stock for 1999 and 1998, as reported in the consolidated
transaction reporting system.
</TABLE>
<TABLE>
<CAPTION>
<S>                                                                 <C>         <C>        <C>        <C>
                                                                           1999                1998
                                                                  -----------------   -------------------
Quarter                                                             High        Low        High       Low
- -------------------------------------------------------------- ---------  ---------  ----------  --------

First                                                              $11 1/4   $ 7 1/2    $27 1/2   $20 7/8
Second                                                              12 3/8     6 1/16    28        21 3/8
Third                                                               11 1/4     6 1/2     23 1/16   14 1/2
Fourth                                                               8         5 3/8     15 3/4     7 1/2

      As of January 28, 2000, the Company had 470 holders of record of its
common stock. This does not include holdings in street or nominee names. The
closing market price on the American Stock Exchange for the Company's common
stock on January 28, 2000, was $9 7/16 per share.

Shareholder Services
      Shareholders of Thermo Cardiosystems Inc. who desire information about the
Company are invited to contact the Investor Relations Department, Thermo
Cardiosystems Inc., 81 Wyman Street, P.O. Box 9046, Waltham, Massachusetts
02454-9046, (781) 622-1111. Distribution of printed quarterly reports is limited
to the second quarter only. Company information is available at
http://www.thermo.com/subsid/tca1.html on Thermo Electron's Internet site.

Stock Transfer Agent
      American Stock Transfer & Trust Company is the stock transfer agent and
maintains shareholder activity records. The agent will respond to questions on
issuance of stock certificates, change of ownership, lost stock certificates,
and change of address. For these and similar matters, please direct inquiries
to:

      American Stock Transfer & Trust Company
      Shareholder Services Department
      40 Wall Street, 46th Floor
      New York, New York 10005
      (718) 921-8200

Dividend Policy
      Except for a $.01 per share dividend distributed to partially offset
income tax liability relating to the Company's recapitalization in 1990, the
Company has never paid any cash dividends because its policy is to use earnings
to finance expansion and growth. The Company's Board of Directors anticipates
that for the foreseeable future no cash dividends will be paid on the Company's
common stock.

Form 10-K Report
      A copy of the Annual Report on Form 10-K for the fiscal year ended January
1, 2000, as filed with the Securities and Exchange Commission, may be obtained
without charge by writing to the Investor Relations Department, Thermo
Cardiosystems Inc., 81 Wyman Street, P.O. Box 9046, Waltham, Massachusetts
02454-9046.

                                       33
<PAGE>
</TABLE>


                                                                      Exhibit 21
                                        THERMO CARDIOSYSTEMS INC.

                                      Subsidiaries of the Registrant
<TABLE>
<CAPTION>
<S>                                                                  <C>                   <C>

      As of February 23, 2000, Thermo Cardiosystems Inc. owned the following companies:

                                                                        STATE OR           REGISTRANT'S
                                                                     JURISDICTION OF        PERCENT OF
                          NAME                                        INCORPORATION          OWNERSHIP
- -----------------------------------------------------------------------------------------------------------

International Technidyne Corporation                                    Delaware                100
  International Technidyne Corporation Limited                           England                100
Nimbus Inc.                                                           Massachusetts             100
TCA Securities Corporation                                            Massachusetts             100
</TABLE>


                                                                Exhibit 23

                    Consent of Independent Public Accountants

      As independent public accountants, we hereby consent to the incorporation
by reference of our reports dated February 10, 2000, included in or incorporated
by reference into Thermo Cardiosystems Inc.'s Annual Report on Form 10-K for the
year ended January 1, 2000, into the Company's previously filed Registration
Statement No. 33-45283 on Form S-8, Registration Statement No. 33-45255 on Form
S-8, Registration Statement No. 33-52822 on Form S-8, Registration Statement No.
33-75654 on Form S-3, Registration Statement No. 33-78732 on Form S-8,
Registration Statement No. 33-78730 on Form S-8, Registration Statement No.
33-78734 on Form S-8, Registration Statement No. 33-78736 on Form S-8,
Registration Statement No. 33-78728 on Form S-8, Registration Statement No.
033-65271 on Form S-8, Registration Statement No. 333-5671 on Form S-3,
Registration Statement No. 333-29287 on Form S-3, Registration Statement No.
333-08809 on Form S-8, and Registration Statement No. 333-83043 on Form S-8.



                                                     Arthur Andersen LLP



Boston, Massachusetts
March 15, 2000

<TABLE> <S> <C>

<ARTICLE>           5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THERMO
CARDIOSYSTEMS INC.'S ANNUAL REPORT ON FORM 10-K FOR THE PERIOD ENDED JANUARY
1,2000 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<MULTIPLIER>        1,000

<S>                              <C>
<PERIOD-TYPE>                                 YEAR
<FISCAL-YEAR-END>                             JAN-01-2000
<PERIOD-END>                                  JAN-01-2000
<CASH>                                                    418
<SECURITIES>                                           82,559
<RECEIVABLES>                                          15,377
<ALLOWANCES>                                            1,009
<INVENTORY>                                            14,945
<CURRENT-ASSETS>                                      130,448
<PP&E>                                                 21,420
<DEPRECIATION>                                         14,061
<TOTAL-ASSETS>                                        169,928
<CURRENT-LIABILITIES>                                  14,977
<BONDS>                                                58,011
                                       0
                                                 0
<COMMON>                                                4,053
<OTHER-SE>                                             92,887
<TOTAL-LIABILITY-AND-EQUITY>                          169,928
<SALES>                                                79,090
<TOTAL-REVENUES>                                       79,090
<CGS>                                                  33,739
<TOTAL-COSTS>                                          33,739
<OTHER-EXPENSES>                                       15,631
<LOSS-PROVISION>                                          120
<INTEREST-EXPENSE>                                      3,551
<INCOME-PRETAX>                                        11,237
<INCOME-TAX>                                            2,865
<INCOME-CONTINUING>                                     8,372
<DISCONTINUED>                                              0
<EXTRAORDINARY>                                         1,212
<CHANGES>                                                   0
<NET-INCOME>                                            9,584
<EPS-BASIC>                                            0.25
<EPS-DILUTED>                                            0.25


</TABLE>


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