AVECOR CARDIOVASCULAR INC
10-K, 1998-03-30
SURGICAL & MEDICAL INSTRUMENTS & APPARATUS
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                        SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON D.C.  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 December 31, 1997
                                         or

[ ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934
           For the transition period from __________ to __________
                                           
                           Commission File No.:  0-21330
                                          
                             AVECOR CARDIOVASCULAR INC.
               (Exact name of registrant as specified in its charter)

<TABLE>
<S>                                                       <C>    
         MINNESOTA                                            41-1695729
(State or other jurisdiction of                             (I.R.S. Employer
 incorporation or organization)                            Identification No.)

  7611 NORTHLAND DRIVE
 MINNEAPOLIS,  MINNESOTA                                          55428
  (Address of principal                                        (Zip Code)
    executive offices)
</TABLE>
       Registrant's telephone number, including area code:  (612) 391-9000
                                          
         Securities registered pursuant to Section 12(b) of the Act: NONE

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

                            COMMON STOCK, $.01 PAR VALUE
                          PREFERRED STOCK PURCHASE RIGHTS
                                ___________________

     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 (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for 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 registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [   ]

     As of March 13, 1998, 8,020,562 shares of Common Stock of the registrant
were outstanding, and the aggregate market value of the Common Stock of the
registrant as of that date (based upon the last reported sale price of the
Common Stock at that date by the Nasdaq National Market), excluding outstanding
shares owned beneficially by officers and directors, was approximately
$49,400,000.

                        DOCUMENTS INCORPORATED BY REFERENCE
     
     Parts I and II of this Annual Report on Form 10-K incorporate by reference
information (to the extent specific sections are referred to herein) from the
registrant's Annual Report to Shareholders for the year ended December 31, 1997
(the "1997 Annual Report").  Part III of this Annual Report on Form 10-K
incorporates by reference information (to the extent specific sections are
referred to herein) from the registrant's Proxy Statement for its 1998 Annual
Meeting to be held May 7, 1998 (the "1998 Proxy Statement").     
     

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The matters discussed in this Annual Report on Form 10-K contain certain 
forward-looking statements. For this purpose, any statements contained in 
this Report that are not statements of historical fact may be deemed to be 
forward-looking statements.  Without limiting the foregoing, words such as 
"may," "will," "expect," "believe," "anticipate," "estimate" or "continue," 
the negative or other variations thereof, or comparable terminology, are 
intended to identify forward-looking statements.  These statements by their 
nature involve substantial risks and uncertainties, and actual results may 
differ materially depending on a variety of factors, including the progress 
of product development and clinical studies, the timing of and ability to 
obtain regulatory approvals, the extent to which the Company's products gain 
market acceptance, the introduction of competitive products by others, the 
pricing related to competitive products, litigation regarding patent and 
other intellectual property rights, the availability of third-party 
reimbursement and other factors, as well as those set forth below under the 
caption "Important Factors" on page 20.

MYOtherm-Registered Trademark- and OnCourse-Registered Trademark- are registered
trademarks of the Company.  Affinity-TM-, Signature-TM-, Trillium-TM-, Myotherm
XP-TM-, Affinity XP-TM- and XP-TM- are trademarks of the Company. 
Windows-Registered Trademark- is a registered trademark of Microsoft
Corporation.

                                       PART I

ITEM 1.   BUSINESS.

(a)       GENERAL DEVELOPMENT OF BUSINESS.

          AVECOR Cardiovascular Inc. (the "Company") develops, manufactures and
markets specialty medical devices for heart/lung bypass surgery and long-term
respiratory support. The Company's products include the AFFINITY microporous,
hollow fiber membrane oxygenator and related blood reservoirs, a line of solid
silicone membrane oxygenators and related blood reservoirs, the AFFINITY blood
pump, the MYOTHERM cardioplegia delivery system, SIGNATURE custom tubing packs
and the AFFINITY arterial filter.

          The Company was incorporated in Minnesota in December 1990 and 
began operations in 1991 when it purchased the surgical division of SCIMED 
Life Systems, Inc. (the "Predecessor Business"). The assets purchased 
included a line of solid silicone membrane oxygenators.  Since the 
acquisition of the Predecessor Business, the Company has engaged in extensive 
product development, resulting in the introduction and receipt of regulatory 
approval from the U.S. Food and Drug Administration (the "FDA") for the 
following proprietary products:
 
<TABLE>
<CAPTION>
       PRODUCT                                          APPROVAL DATE
- -----------------------------------------------------   --------------
<S>                                                     <C>
MYOTHERM cardioplegia delivery system                   October 1991
SIGNATURE custom tubing packs                           July 1993
AFFINITY oxygenator                                     November 1993
AFFINITY blood reservoirs                               July 1994
AFFINITY arterial filter                                October 1995
MYOTHERM XP (improved cardioplegia delivery system)     July 1997
AFFINITY blood pump                                     August 1997
AFFINITY oxygenator with TRILLIUM bio-passive surface   February 1998
</TABLE>


                                       1


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          In December 1992, the Company acquired Cardio Med Ltd., a 
corporation organized under the laws of England and Wales ("Cardio Med").  
Cardio Med had been a distributor of the Company's disposable membrane 
oxygenators, cardiotomy reservoirs and cardioplegia systems and manufactured 
its own proprietary line of custom tubing packs.  As a result of the 
acquisition, Cardio Med has become a wholly-owned subsidiary of the Company. 
Cardio Med's name has since been changed to AVECOR Cardiovascular Ltd. 
("AVECOR Ltd.").  During 1995, the Company incorporated AVECOR Foreign Sales 
Corporation as a wholly-owned subsidiary of the Company and opened a sales 
office in France, organized as AVECOR Cardiovascular France S.A.R.L., a 
French subsidiary of AVECOR Ltd.
               
          As used herein, the term "Company" refers to AVECOR Cardiovascular 
Inc., AVECOR Ltd., AVECOR Cardiovascular France S.A.R.L. and AVECOR Foreign 
Sales Corporation.  The Company's principal executive offices are located at 
7611 Northland Drive, Minneapolis, Minnesota 55428, and its telephone number 
is (612) 391-9000. 

(b)       FINANCIAL INFORMATION ABOUT INDUSTRY SEGMENTS.

          Since its inception, the Company has operated in the single industry
segment of developing, manufacturing and marketing medical devices.  

(c)       NARRATIVE DESCRIPTION OF BUSINESS.

INDUSTRY BACKGROUND AND MARKETS

          INDUSTRY BACKGROUND.  The Company's products are used in surgical
procedures requiring heart/lung bypass, such as the treatment of coronary artery
disease by coronary artery bypass graft surgery ("CABG" or "coronary bypass
surgery"), heart valve replacement surgery and pediatric and neonatal congenital
heart defect surgery.  There were approximately 850,000 heart/lung bypass
procedures performed worldwide in 1997, including approximately 400,000 of such
procedures performed in the United States, and approximately 265,000 of such
procedures performed in Europe. Certain of the Company's products are also used
in non-surgical applications, such as the long-term cardiopulmonary support of
premature infants, newborns and other patients with life-threatening respiratory
disorders. 

          The primary use of the Company's products is for heart/lung bypass
procedures during the surgical treatment of coronary artery disease. Coronary
artery disease, the leading cause of death in the United States, is the
atherosclerotic narrowing of the coronary arteries that supply blood to the
heart. Atherosclerosis is the accumulation of cholesterol and blood products on
the inner lining of an artery that causes the arterial wall to thicken and lose
elasticity, narrowing the inner diameter of the artery. According to an estimate
by the American Heart Association, approximately 13,490,000 Americans have a
history of heart attack, angina pectoris (chest pain), or both, which are
generally associated with coronary artery disease. The American Heart
Association estimated that, in the United States in 1996, coronary artery
disease would result in 1,500,000 acute myocardial infarctions, or heart
attacks, of which approximately 500,000 would result in death. 

          In the late 1960s, cardiovascular surgeons pioneered coronary bypass
surgery, a surgical treatment for severe cases of coronary artery disease in
which blood vessel grafts are used to bypass the site of the blocked arteries.
Several of these procedures or "grafts" may be performed during a single surgery
in order to bypass atherosclerotic lesions in more than one of the coronary
arteries, which is commonly referred to as "multi-vessel" coronary artery
disease. Coronary bypass surgery generally requires that the patient be put on a
heart/lung bypass circuit to enable the surgeon to operate on a still,
relatively bloodless heart. The 


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heart/lung bypass circuit is a series of interconnected specialty medical 
devices that together function as a patient's heart and lungs by temporarily 
oxygenating and circulating blood while the patient's own heart and lungs are 
rendered inactive. The Company believes coronary bypass surgery accounts for 
approximately 75% of the total heart/lung bypass procedures performed in the 
United States and over 50% of the procedures performed in Europe. 

          Although coronary bypass surgery is a highly invasive procedure, it 
has been shown to be highly effective in treating coronary artery disease, 
and the number of procedures performed annually in the United States has 
grown from approximately 200,000 in 1982 to over 400,000 in 1997 (multiple 
procedures may be performed during a single surgery where multi-vessel 
disease is present). The annual worldwide growth rate in the number of 
coronary bypass procedures has fluctuated from year to year for various 
reasons. 

          Since the development of coronary bypass surgery, a number of 
non-surgical interventional treatments for coronary artery disease have been 
developed which, depending on the extent and nature of the disease as well as 
physician preference, may be used as an alternative to coronary bypass 
surgery. These non-surgical treatments, while generally less costly per 
procedure, have limitations and to date have not resulted in reduced demand 
for coronary bypass surgery. 

          Percutaneous transluminal coronary angioplasty ("PTCA") was 
introduced in the early 1980s as a non-surgical treatment for coronary artery 
disease. PTCA is performed by guiding a balloon-tipped catheter to the site 
of an atherosclerotic lesion, followed by several courses of dilation under 
high balloon pressure. For many patients, PTCA represents a less costly and 
less traumatic alternative to bypass surgery, while for other patients it 
represents a preferred alternative to drug therapy.  While the number of PTCA 
procedures performed grew significantly in the 1980s and early 1990s, the 
number of coronary bypass procedures performed annually also continued to 
grow during this period.  

          Although the average cost of a PTCA procedure is approximately 
one-half of the average cost of coronary bypass surgery, the need for further 
interventions for many patients tends to significantly reduce the long-term 
cost differential between these two types of procedures.   Studies have 
indicated that 30% to 50% of PTCA procedures are complicated by "restenosis," 
a renarrowing, or often reclosure, of the dilated vessel within six months.  
An artery complicated by restenosis often requires repeat procedures, 
reducing the overall cost-effectiveness of PTCA.  For a significant number of 
PTCA patients, coronary bypass surgery is ultimately performed.  In patients 
with multi-vessel coronary artery disease, a randomized study has shown that 
within three years of receiving treatment, only 14% of patients receiving 
coronary bypass surgery required retreatment ("revascularization") while 60% 
of patients receiving PTCA required revascularization.  Additional studies 
have confirmed that approximately 20% of PTCA patients with multi-vessel 
disease will undergo coronary bypass surgery within one year of receiving 
PTCA.  Because of the higher rates of revascularization of patients receiving 
PTCA rather than coronary bypass surgery, several studies have concluded that 
over a three-year period the overall average cost of PTCA procedures exceeds 
75% of the average cost of coronary bypass surgery. 

          In response to the limitations of PTCA, a variety of "second 
generation" interventional devices for coronary artery disease have been 
developed, including atherectomy devices (catheter devices that cut and 
remove atherosclerotic materials from the arterial wall), rotational ablation 
devices (catheter devices which use a rotating burr to remove material), 
laser catheter devices (devices that use laser energy to reduce accumulated 
materials in arteries) and coronary stents (expandable metal frames that are 
positioned within the diseased area in the coronary artery to maintain the 
vessel opening). Of these devices, coronary stents have demonstrated the best 
potential to date to reduce restenosis in a randomized population.  Recent 
studies have concluded that the rate of restenosis in patients receiving 
coronary stents following PTCA is 


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approximately 30% lower than in patients treated only by PTCA.  However, the 
use of stenting in connection with PTCA greatly increases the cost of the 
PTCA procedure.  One study has indicated that the average cost per procedure 
for elective stenting in connection with PTCA was approximately twice the 
cost of PTCA without stenting (or approximately equal to the cost of coronary 
bypass surgery). 

          In addition to the existing non-surgical treatments for coronary 
artery disease, an additional treatment modality has emerged for both 
coronary artery disease and heart valve replacement procedures (discussed 
below), which involves "least" or "minimally" invasive surgical procedures.  
These techniques involve small surgical incisions in the patient's chest in 
lieu of the larger incision used in traditional CABG or valve replacement 
surgeries.  Specialized surgical instruments used in connection with 
endoscopes enable surgeons to perform CABG or valve replacement surgeries via 
these smaller incisions.  In some variations of this type of procedure, only 
a modified form of the heart/lung bypass circuit is required, which includes 
an oxygenator and related disposables.  However, in other variations of this 
type of procedure a heart/lung bypass circuit is not utilized.

          While this modality is in its developmental stages and currently 
requires significant surgical skill and training, the potential benefits to 
patients from this type of surgery are a reduced recovery period and risk of 
infection as a result of the smaller incision.  While some of the patients 
currently eligible for treatment by these types of procedures are not 
candidates for more invasive and less costly procedures, there can be no 
assurance that this type of surgical procedure will not represent a 
significant portion of the CABG or heart valve replacement procedures in the 
future.  Therefore, it cannot be determined at this time what effect, if any, 
the development and acceptance of these procedures may have on the market for 
the Company's disposable heart/lung bypass circuit components.

          A second significant use of the Company's products in conjunction 
with heart/lung bypass procedures is in heart valve replacement surgery.  
Heart valve replacement surgery is also an open heart surgical procedure, 
involving the replacement of valves that regulate the flow of blood between 
chambers in the heart.  Valve replacement may be required where the valve has 
become narrowed or ineffective due to the build-up of calcium or scar tissue, 
or where there is a congenital defect or some other form of physical damage 
to the valve.  Like coronary bypass surgery, valve replacement surgery 
requires that the patient be put on a heart/lung bypass circuit.  The Company 
believes approximately 20% of the heart/lung bypass procedures performed in 
the United States were performed in heart valve replacement surgery and 
approximately 25% of the heart/lung bypass procedures performed in Europe 
were performed in heart valve replacement surgery. 

          Pediatric and neonatal congenital heart defect surgery is another 
heart/lung bypass procedure which uses several of the Company's products.  
These procedures are undertaken to correct developmental defects in the heart 
of a child or infant.  The Company believes approximately 5% of the 
heart/lung bypass procedures performed in the United States and approximately 
10% of those performed in Europe were performed in connection with this type 
of corrective surgery. 

          The primary non-surgical use of the Company's products is in 
connection with a procedure known as extracorporeal membrane oxygenation 
("ECMO").  ECMO is the long-term cardiopulmonary support of premature 
infants, newborns and other patients with life threatening respiratory 
disorders.  The relatively small ECMO market served by the Company is 
comprised of 118 established centers worldwide, in which approximately 1,500 
neonatal ECMO procedures (procedures performed on children younger than one 
year) were performed in 1997.  Neonatal ECMO procedures constitute the vast 
majority of all ECMO procedures performed.  There has been relatively little 
growth in the overall ECMO market in recent years and the Company believes 
growth in this market will remain limited until technology overcomes 
complications that 


                                       4

<PAGE>

are common in long-term respiratory support, such as intracranial bleeding 
due to the associated long-term use of anti-coagulants. Since the Company 
manufactures what it believes to be the only oxygenator that has received 
clearance from the FDA for sale for long-term cardiopulmonary support for 
periods greater than 24 hours, the Company believes it has a competitive 
advantage in this relatively small market. 

          HEART/LUNG BYPASS CIRCUIT.  In procedures requiring cardiopulmonary 
support, the patient is connected to a series of interconnected specialty 
medical devices, collectively called a heart/lung bypass circuit.  The 
heart/lung bypass circuit functions as the patient's heart and lungs by 
temporarily oxygenating and circulating blood while the patient's own heart 
and lungs are rendered inactive.  The devices in the heart/lung bypass 
circuit are operated by a skilled medical professional known as a 
perfusionist, under the direction of a surgeon.  The primary components of a 
heart/lung bypass circuit, including the oxygenator, are single-use, 
disposable products.  Heart/lung bypass circuits are customized for the 
particular practices of individual perfusionists. 

          In a typical heart/lung bypass procedure, blood is removed via 
surgically inserted "cannulae" (hollow tubes with specifically designed tips 
that facilitate the drainage or infusion of blood into or out of a patient's 
body) from the patient's vena cava (the large vessels leading to the heart).  
The blood flows from the patient's vena cava by gravity into a venous blood 
reservoir where it is collected and "de-bubbled" (air is eliminated from the 
blood).  In addition, blood that is suctioned from the patient or drained 
from the heart is filtered and de-bubbled through a cardiotomy reservoir.  
This blood is then also added to the venous blood reservoir.  From the venous 
blood reservoir, the blood is mechanically pumped by a blood pump serving as 
a replacement for the patient's heart through an oxygenator.  The oxygenator 
serves as a replacement for the patient's lungs by removing carbon dioxide 
from and adding oxygen to the blood. The carbon dioxide and oxygen levels in 
the blood are monitored with blood gas monitoring equipment, allowing the 
perfusionist to make the proper adjustments to maintain the correct 
concentrations.  The oxygenator also controls the temperature of the blood by 
means of an integral heat exchanger connected to a heater-cooler console.  
The oxygenated blood is then returned to the patient through a final 
(arterial) filter that removes any potential air or small particles.  This 
artificial heart/lung system is the primary component of the bypass circuit. 

          In addition to the artificial heart/lung system, most bypass 
circuits also include a cardioplegia delivery system.  During most cardiac 
surgical procedures, the heart is stopped (arrested) to provide the surgeon 
with a motionless field for the delicate surgery.  When this occurs, the 
heart muscle receives very little blood supply.  A cardioplegia system 
infuses specially formulated solutions (which often include oxygenated blood) 
directly into the patient's coronary arteries.  In addition to delivering 
nutrients to the heart, these solutions are also used to arrest the heart and 
maintain prescribed temperatures. 

          In order to salvage the patient's own blood during surgery, a 
cell-saver circuit may be used to collect and concentrate the patient's blood 
into washed, packed cells which can be reinfused at a later time to improve 
the patient's red blood cell count without the risks associated with donated 
blood.  Another method of concentrating the patient's red blood cells is with 
the use of a hemoconcentrator.  This device removes excess fluid from the 
patient's blood (concentrating the red blood cells) and also preserves the 
plasma of the blood that is generally discarded with typical blood cell 
salvaging. 

          The heart/lung bypass circuit is completed by connecting all of the 
devices with tubing.  Frequently, this tubing is pre-connected according to 
the instructions of individual perfusionists with all or some of the devices 
in the circuit and marketed as custom tubing packs.  Increasingly, all of the 
components in the heart/lung bypass circuit are assembled and packaged in a 
complete, single container for a single heart/lung bypass procedure. 


                                       5

<PAGE>

          MARKETS.  The Company's products are primarily sold to hospitals 
that perform heart/lung bypass surgery.  There were approximately 1,000 
hospitals in the United States and about 400 hospitals in Europe which 
performed these procedures in 1997.  Over 400,000 heart/lung bypass 
procedures were performed in the United States in 1997, and approximately 
265,000 heart/lung bypass procedures were performed in Europe in 1997.  
Coronary bypass surgeries constitute a significant portion of the total 
number of heart/lung bypass procedures performed each year.  Although the 
number of heart/lung bypass procedures performed may have been less than the 
number of coronary bypass surgeries due to multiple grafts being performed 
during some surgeries, the number of graft procedures performed in the United 
States each year grew from less than 200,000 in 1982 to over 400,000 in 1997.
 
          The current annual worldwide market for disposable products and 
related hardware and accessories for heart/lung bypass surgery is estimated 
by industry analysts to be approximately $800 million, over $600 million of 
which is estimated to be attributable to disposable products.  The two 
largest individual markets for disposable products are the oxygenator market, 
estimated at approximately $200 million in annual sales, and the custom 
tubing pack market, estimated at approximately $100 million in annual sales. 
The Company's current proprietary product offerings participate in an annual 
worldwide market for disposable products estimated to be approximately $480 
million, and the Company anticipates that its proprietary products under 
development, including additional products coated with its new TRILLIUM 
bio-passive surface, should allow the Company to pursue a greater portion of 
the disposable product market. 

PRODUCTS

          The Company currently offers four primary product lines: the 
AFFINITY line; the solid silicone membrane oxygenator line; the MYOTHERM 
cardioplegia delivery system; and SIGNATURE custom tubing packs.  "Other 
products" include products distributed by the Company which do not represent 
any of the Company's primary product lines and, combined or individually, do 
not represent a primary product line within the Company's business.  The 
following table sets forth the amounts and percentages of the Company's 
consolidated net sales attributable to these four product lines for the 
periods shown.

<TABLE>
<CAPTION>
                                                           YEARS ENDED DECEMBER 31,                                  
                                               ---------------------------------------------------
                                                    1997              1996               1995 
                                               -------------     --------------     --------------
                                                             (DOLLARS IN THOUSANDS)
<S>                                            <C>        <C>    <C>         <C>    <C>        <C>
AFFINITY line ..............................   $26,185    56%    $25,488     57%    $18,329     55% 
SIGNATURE custom tubing packs ..............     9,803    21       7,402     17       3,459     10
Silicone membrane oxygenator line ..........     7,081    15       7,517     17       7,793     24
MYOTHERM cardioplegia deliver system .......     3,655     8       3,994      9       3,759     11 
Other products .............................       140     0           -      -           -      -
                                                ------    ---     -------    ---     -------   ---
     TOTAL .................................   $46,864    100%    $44,401    100%    $33,340   100%
                                                ------    ---     -------    ---     -------   ---
</TABLE>

          AFFINITY LINE.  The Company's AFFINITY line is currently comprised 
of the AFFINITY oxygenator, the AFFINITY blood pump, a hardshell cardiotomy 
venous reservoir and a venous reservoir bag.  

          The AFFINITY oxygenator is a microporous, hollow fiber membrane 
oxygenator which exchanges the carbon dioxide in the patient's blood for 
oxygen, returning oxygenated blood to the patient through the heart/lung 
bypass circuit.  This oxygenator incorporates the Company's patented radial 
flow and graduated density fiber bundle, both of which were developed through 
the Company's use of "computational fluid dynamics." Computational fluid 
dynamics helped the Company design the AFFINITY oxygenator with features such 
as a lowered blood phase pressure drop, a more uniform flow of blood through 
the device's fiber 


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bundle, and reduced damage to the blood as it passes through the device's 
blood phase. The key features of the AFFINITY oxygenator include the 
following:

- -    HIGH GAS TRANSFER.  The Company believes that the AFFINITY oxygenator 
     offers superior gas transfer performance.  Studies conducted by 
     independent investigators have demonstrated that the AFFINITY oxygenator 
     has gas transfer performance equal or superior to that of most competing
     oxygenators.  The Company believes that most perfusionists desire
     oxygenators that provide optimum gas transfer performance to assure safety
     for patients requiring greater oxygen transfer capability, such as larger
     patients and patients operated on under lighter anesthesia or at warmer
     temperatures.
               
- -    LOW PRESSURE DROP.  Studies conducted by independent investigators have
     determined the pressure drop across the blood phase of the AFFINITY
     oxygenator to be as low or lower than that of other leading products.  The
     Company believes that perfusionists generally wish to avoid large pressure
     drops during heart/lung bypass procedures due to the risk of line failures
     associated with high pressure drop.
               
- -    LOW PRIMING VOLUME.  The AFFINITY oxygenator has a priming volume 
     which the Company believes to be one of the lowest priming volumes 
     among oxygenators currently available.  Lower priming volume can 
     result in less set-up time for the perfusionist, reduced dilution 
     of the patient's blood with priming solutions and a reduced use of 
     the patient's blood for priming, which lessens the possibility 
     that costly and potentially dangerous donor blood products will 
     need to be introduced during the procedure.
                    
- -    EASE OF USE.  The AFFINITY oxygenator has been designed to be 
     convenient to set up, prime and operate.  The AFFINITY 
     oxygenator's relatively small size and universal adaptability 
     contribute to its ease of handling, and its clear case helps to 
     assure quick, complete priming and ongoing visual checks during 
     the procedure.  The device's unique casing design and a 
     proprietary manufacturing technique result in precise alignment of 
     the uppermost blood port with the top of the fiber bundle, 
     allowing for ease in venting air during the priming procedure.  
     The Company believes that perfusionists have a preference for 
     oxygenators that permit easy removal of air during priming and 
     ease of monitoring for the presence of air during the procedure. 
     
          Although competing oxygenators are generally designed to maximize 
one or more of these key features, the Company believes the performance of 
the AFFINITY oxygenator to be equal or superior to competing products across 
a broad range of performance characteristics:  gas transfer capability, 
pressure drop, priming volume and ease of use. 

          In February 1997, the Company received regulatory clearance from 
the FDA to market its AFFINITY oxygenator with TRILLIUM bio-passive surface.  
By adding the AFFINITY oxygenator with TRILLIUM bio-passive surface, the 
Company will be able to offer a product option that certain competitors now 
promote.

          The TRILLIUM bio-passive surface is produced by coating all 
blood-contact surfaces in the oxygenator with a non-leaching synthetic 
hydrophilic polymer which contains a small amount of heparin, a widely used 
anti-coagulant.  This surface is designed to minimize activation of blood 
constituents which otherwise occurs as a result of contact with conventional 
synthetic surfaces.

          In the heart/lung bypass circuit, the blood reservoir serves as a 
filtering and storage device.  The AFFINITY line offers two blood reservoirs, 
a hardshell cardiotomy venous reservoir and a venous reservoir bag.  
Computational fluid dynamics modeling was also used in the development of 
these reservoirs.  The hardshell reservoir can be used as a stand-alone unit 
or can be integrated with the AFFINITY oxygenator in one unit.  The venous 
reservoir bag maintains simplicity in its design while offering optimum 
priming ease, 

                                       7

<PAGE>

efficient air handling and excellent mixing characteristics.  By offering 
these blood reservoirs in the AFFINITY line, the Company is able to configure 
systems to meet its customers' needs. 

          In July 1993, the Company began international marketing of the 
AFFINITY oxygenator.  The Company began the commercial release of the 
AFFINITY oxygenator in the U.S. market in February 1994, following marketing 
clearance from the FDA. The Company received U.S. marketing clearance from 
the FDA for its AFFINITY blood reservoirs in July 1994 and began marketing 
the devices following clearance. 

          The AFFINITY Blood Pump System incorporates a motor and control 
console, a rotor housing, rotor assembly and a disposable pump chamber.  The 
Company believes that the AFFINITY Blood Pump System offers a number of 
clinical safety advantages over existing centrifugal or standard roller-type 
pumps. In particular, the modified roller-type design of the AFFINITY Blood 
Pump System is designed to (i) prevent significant negative pressure at the 
inlet, which minimizes the potential for cavitation; (ii) not permit the 
draining of the venous reservoir and the resulting introduction of air into 
the bypass circuit; (iii) not create high discharge pressures sufficient to 
disrupt the tubing connections in the bypass circuit; and (iv) not allow 
retrograde flow.  The Company believes that the AFFINITY Blood Pump System is 
the first and only available blood pump to combine these safety features with 
performance comparable to available pumps.

          There can be no assurance that the AFFINITY Blood Pump System will 
be perceived as superior to currently available blood pumps, that competitors 
will not introduce future products with superior performance characteristics, 
or that the AFFINITY Blood Pump System will achieve market acceptance or 
generate material revenues for the Company at any time in the near future, if 
at all. See "Important Factors" on page 20.

          In August 1997, the Company received regulatory clearance from the 
FDA to market the AFFINITY Blood Pump System.  By adding the AFFINITY Blood 
Pump System to its product line, the Company is now able to offer a complete 
line of proprietary devices comprising the major components of the heart/lung 
bypass circuit.

          SIGNATURE CUSTOM TUBING PACKS.  The Company's SIGNATURE custom 
tubing packs include the tubing and other connections used to integrate the 
various components of the heart/lung bypass circuit and ECMO system.  The 
components to be included in each tubing pack and the manner in which they 
are arranged and connected are determined by the specifications provided by 
the Company's individual customers.  The Company has developed computer 
software that allows it to design and fully document custom tubing packs 
according to individual customer specifications and to quote prices based on 
these specifications within hours of a customer request.  The Company 
believes that this service provides it with a significant competitive 
advantage.  While many of the devices included in the Company's SIGNATURE 
custom tubing packs are manufactured by the Company, the Company currently 
does not manufacture all the devices that may be requested by customers.  
Consequently, the Company is currently required to purchase certain 
components of its SIGNATURE custom tubing packs from other medical device 
manufacturers.  The Company received marketing clearance from the FDA for its 
SIGNATURE custom tubing packs in June 1993.

          In October 1995, the Company received FDA clearance to market its 
AFFINITY arterial filter.  The Company began sales of this product to 
customers in late 1995, with full worldwide release in the first quarter of 
1996.  The AFFINITY arterial filter is the final component in the circuit of 
specialized medical devices used in heart/lung bypass surgery, ensuring that 
the oxygenated blood is free of air or particulate emboli before re-entering 
the patient's body.  The Company believes that the AFFINITY arterial filter 
offers low volume priming, high visibility and excellent air handling and 
hemodynamics.  The vast majority of 

                                       8

<PAGE>

AFFINITY arterial filter devices are sold as components of its SIGNATURE 
custom tubing packs.  Previously, the Company had sold filters from other 
manufacturers as part of  its custom tubing packs.

          SILICONE MEMBRANE OXYGENATOR LINE.  The Company's solid silicone 
membrane oxygenator line consists of the Company's solid silicone membrane 
oxygenator and associated cardiotomy reservoirs and the Company's ECMO 
(extracorporeal membrane oxygenation) devices.  This product line was 
purchased by the Company from the Predecessor Business. 

          The Company's solid silicone membrane oxygenators allow gases to 
pass to and from blood using proprietary silicone membrane technology, as 
opposed to the most widely used oxygenators that use microporous membrane 
technology (including the AFFINITY oxygenator).  The solid silicone membrane 
technology permits, and may be sold for, extended use applications because it 
does not experience the performance deterioration over a longer period of use 
that occurs in a microporous membrane oxygenator.  In addition, some 
perfusionists continue to prefer silicone membrane oxygenators for heart/lung 
bypass procedures.  The Company believes that its solid silicone membrane 
oxygenator is the only oxygenator which is approved for sale for extended use 
of periods greater than 24 hours, providing the Company with a competitive 
advantage in this relatively small market.  The Company markets a full line 
of solid silicone membrane oxygenators in several models and sizes. 

          The Company's solid silicone membrane oxygenator is also part of 
the Company's ECMO system.  ECMO is the long-term cardiopulmonary support of 
premature infants, newborns and other patients with life-threatening 
respiratory disorders.  The ECMO system includes the membrane oxygenator, 
reservoir bladder bags and a heat exchanger. 

          MYOTHERM CARDIOPLEGIA DELIVERY SYSTEM.  The Company's MYOTHERM 
cardioplegia delivery system is used to infuse specially formulated 
solutions, which often include oxygenated blood, directly into the patient's 
coronary arteries while the heart is stopped during heart/lung bypass 
surgery.  In addition to delivering nutrients to the heart, these solutions 
are also used to arrest the heart and maintain prescribed temperatures.  The 
Company believes that the MYOTHERM cardioplegia delivery system provides 
superior levels of heat exchange performance for optimum temperature control 
during both the cooling and warming phases of heart/lung bypass surgery.  The 
MYOTHERM cardioplegia delivery system also offers adaptability and 
convenience for varying cardioplegia techniques used by cardiovascular 
surgeons.  The perfusionist is able to specify mixtures of cardioplegia 
solutions and blood in the MYOTHERM cardioplegia delivery system without 
changing the pump set-up.  The Company released its MYOTHERM cardioplegia 
delivery system worldwide in October 1991.  
               
          In July 1997, the Company received marketing clearance from the FDA 
for an improved MYOTHERM cardioplegia delivery system known as the MYOTHERM 
XP.  The MYOTHERM XP offers lower priming volume, better air handling and a 
new safety valve to prevent an air pressure induced failure of the MYOTHERM 
XP while retaining all the other advantages of the predecessor MYOTHERM 
cardioplegia delivery system. 

          ONCOURSE CONTINUOUS QUALITY CONTROL IMPROVEMENT SOFTWARE.  In 
addition to the Company's medical device products, the Company introduced its 
ONCOURSE continuous quality improvement (CQI) manager in December 1995.  This 
Microsoft Windows-based software program is currently offered free of charge 
to customers who make a major commitment to the Company's products.  ONCOURSE 
CQI Manager guides perfusionists through the necessary steps in establishing 
a CQI program. In addition, it generates a 

                                       9

<PAGE>

variety of useful reports for perfusionists, including the annual American 
Board of Cardiovascular Perfusion clinical activity report and several other 
specialized reports. 

          In March 1997, the Company released ONCOURSE II, an improved 
version of its original ONCOURSE CQI software.  The major improvements for 
ONCOURSE II include upgraded report generation capabilities, user-defined 
study parameters, tracking of blood usage during procedures, and a 
benchmarking utility to compare the host hospital data to aggregate data from 
other hospitals via online communications. Further improvements and upgrades 
are planned for 1998.  Although the Company markets this product for sale to 
other customers, the Company does not expect that this product will 
contribute significantly to its results of operations in the foreseeable 
future.
          
RESEARCH AND DEVELOPMENT

          The Company's research and development strategy encompasses: 
continuing the development of a complete line of products for the heart/lung 
bypass circuit, ensuring that existing products are enhanced or replaced, 
based on changing  on market conditions and developing products which address 
new markets and opportunities outside of the heart/lung bypass market and 
which leverage the Company's core technologies and expertise. 

          As an integral part of both its research and development and sales 
and marketing strategies, the Company strives to involve its customers to a 
large extent in its product development activities.  Under confidentiality 
agreements, the Company consults with selected customers from time to time as 
to market needs and assessments of products under development by the Company. 
 The Company believes that this practice allows it to receive end-user 
assessments of products in development at an early stage and to better assure 
market acceptance. 

          The Company's research and development staff currently consists of 
24 full-time engineers, scientists, designers and technicians.  Research and 
development expenses in 1997 were $3,902,000, as compared with $3,651,000 in 
1996 and $2,773,000 in 1995.  The Company anticipates that 1998 research and 
development costs will increase approximately 10% over 1997 levels, as the 
Company moves to expand and improve its proprietary line of disposable 
medical devices.  This forward-looking projection is dependent on the extent 
and timing of new product development and the impact of the regulatory 
process in obtaining marketing clearance for new products.  The need or 
desire to modify the Company's existing products could also influence the 
level of research and development expenses.  There can be no assurance, 
however, that the Company's research and development efforts will result in 
any commercially successful products. 

MARKETING

          The Company markets its products in the United States and 
internationally, with domestic sales accounting for 59%, 59% and 58% of 
consolidated net sales in 1997, 1996 and 1995, respectively. The majority of 
the Company's international sales are in Europe. 

          To serve the U.S. market, the Company has developed a sales 
organization that markets its products directly to cardiovascular surgeons, 
perfusionists, neonatologists and ECMO specialists.  This organization 
consists of a staff of 18 direct sales employees and is supplemented by seven 
independent sales representative organizations, all with cardiovascular sales 
experience.  This network is managed by four regional sales managers and a 
vice president of marketing and sales.  At its inception, the Company 
marketed its products primarily through distributors and independent sales 
representatives.  Since that time, 


                                       10

<PAGE>

the Company has shifted the composition of its distribution network in the 
United States to its current direct sales organization.  Approximately 93% of 
the Company's U.S. sales in 1997 occurred through direct sales employees and 
independent sales representatives.  The Company believes that this shift to a 
larger direct sales force allows better control of the sales process and 
assists the Company in developing closer relationships with its customers. 

          During 1997, the Company terminated agreements with its last 
remaining United States distributor and its only Canadian distributor.  At 
the time of termination, both distributors had an inventory of the Company's 
products which subsequently were sold to medical institutions and were not 
replenished by purchases from the Company.  Sales to the territories formerly 
served by these distributors decreased approximately $1,400,000 in 1997 when 
compared to 1996. These markets are now being served by the Company's direct 
sales force.  While management believes these revenue declines are temporary 
and caused by the transition to a direct sales force in these territories, 
this forward-looking expectation is primarily dependent on the ability of the 
direct sales personnel to maintain and develop relations and revenue levels 
at the medical institutions previously served by these distributors.

          Internationally, the Company sells its products through 41 
cardiovascular distributors who cover most major foreign markets.  The 
Company's U.K. subsidiary, AVECOR Ltd., is the base of the Company's 
international marketing efforts, and manufactures, assembles and distributes 
the Company's products to the majority of the Company's international 
distribution network.  This international distribution network is managed by 
an international sales director and an export sales manager, both of whom are 
experienced in marketing heart/lung bypass devices in Europe.  The Company's 
international distribution network is supplemented by seven direct sales 
employees, three in the U.K., two in France and two in Canada.  In October 
1995, the Company opened a sales office in France, which is organized as a 
subsidiary of AVECOR Ltd.  Total export sales from the U.S. to unaffiliated 
entities (primarily to Europe and Asia and payable in U.S. dollars) and sales 
made by AVECOR Ltd. were $4,952,000 and $14,230,000, respectively for the 
year ended December 31, 1997; $4,912,000 and $13,111,000, respectively for 
the year ended December 31, 1996; and $3,480,000 and $10,702,000, 
respectively, for the year ended December 31, 1995.

          The Company currently has written agreements with 25 of its 
independent sales representatives and international distributors.  These 
agreements generally impose geographic exclusivity and non-competition 
obligations on the Company's independent sales representatives and 
distributors.  The Company's sales representative agreements typically 
include a provision that requires the Company to pay a commission to the 
sales representative for any sales made directly by the Company to customers 
within such sales representative's or distributor's territory.  Distributor 
agreements generally do not require the Company to pay commission.  The 
Company may typically terminate these agreements upon breach of the agreement 
by the distributor or sales representative, including breach of the quota or 
minimum sales obligations imposed by the agreement, as well as certain 
extraordinary events.

          The Company's products are primarily sold to hospitals that perform 
heart/lung bypass procedures. In the United States, the Company believes 
there are approximately 1,000 hospitals at which heart/lung bypass procedures 
are performed, while in Europe approximately 400 hospitals perform such 
procedures. There are approximately 118 hospitals worldwide where ECMO is 
performed.  The Company's products are used by perfusionists, and the Company 
estimates that there are about 3,000 perfusionists practicing in the United 
States.

          A small portion of the Company's business is subject to longer term 
(longer than one year) commitments with customers.  These commitments involve 
fixed pricing terms and minimum or exclusive 


                                       11

<PAGE>

purchase obligations.  Many of the Company's competitors, which have greater 
financial resources and broader and longer-standing product lines than the 
Company, have experienced relatively greater success in establishing these 
types of customer commitments.  The Company anticipates that there will be 
increased use of these longer term, firm commitment arrangements in its 
markets due to cost concerns and other factors.  

          The Company's sales and marketing strategy includes developing and 
maintaining a close working relationship with its customers in order to 
assess and satisfy their needs for products and services.  The Company meets 
with certain designated customers several times each year, during which ideas 
are shared regarding the marketplace in general, specific products, products 
under development and existing or proposed programs.  In lieu of expensive 
advertising and promotional materials, the Company maintains extensive 
contact with its customers for the purpose of educating them in the Company's 
technologies and manufacturing methods as well as to receive input and 
feedback about the Company's product development and customer service 
functions.  The Company believes these efforts to be cost-effective in 
producing awareness of, and loyalty to, the Company's products.  

          The Company conducts frequent training of its sales force to 
facilitate response to customer needs. The Company also maintains a 
24-hour/day assistance program in order to respond quickly to clinical 
questions and problems encountered by its customers.  The assistance services 
are provided by a former certified clinical perfusionist employed by the 
Company and are supplemented by other certified clinical perfusionists 
employed by the Company as well as a network of perfusionist consultants 
located across the country. 

          No single customer accounted for more than 10% of the Company's 1997 
net sales.

COMPETITION

          The cardiovascular device market in which the Company competes is 
characterized by intense competition.  This market is dominated by 
established manufacturers that have broader product lines, greater 
distribution capabilities, substantially greater capital resources and larger 
marketing, research and development staffs and facilities than the Company.  
Many of these competitors offer broader product lines within the specific 
heart/lung bypass product market and/or in the general field of medical 
devices and supplies. Broader product lines give many of the Company's 
competitors the ability to negotiate exclusive, long-term medical device 
supply contracts and, consequently, the ability to offer comprehensive 
pricing of their competing products.  By offering a broader product line in 
the general field of medical devices and supplies, competitors may also have 
a significant advantage in marketing competing products to group purchasing 
organizations, health maintenance organizations and other managed-care 
organizations that increasingly seek to reduce costs through centralization 
of purchasing functions.  In addition, the Company's competitors continue to  
use price reductions to preserve market share in the oxygenator and other 
product markets.  Therefore, the Company must present competitive product 
pricing when required to protect or improve its market share in certain key 
areas.  There can be no assurance that the Company's competitors will not use 
more significant and more prolonged price competition across the Company's 
product lines in the future.

          During 1995 and 1996, one of the Company's competitors, the Bentley 
Division of Baxter Healthcare Corporation, purchased three companies which 
provide contract perfusion services to hospitals. Although the Company 
believes that it is too early to assess the long-term effect of these 
acquisitions on the Company's business, sales to contract perfusion groups 
controlled by one of the Company's competitor decreased $750,000 to 
$1,100,000 for 1997 from $1,850,000 for 1996.  The Company 


                                       12

<PAGE>


believes that control of contract perfusion groups by its competitors will 
continue to have a negative impact on the Company's ability to market its 
products to such groups or to hospitals or other medical providers that 
contract with competitor-controlled groups for perfusion services, and could 
have a material adverse effect on the Company's business, financial condition 
and results of operation.  This forward-looking statement is subject to the 
degree of control exerted by the Company's competitors with respect to 
purchasing decisions made by controlled groups of perfusionists, the extent 
of future acquisitions of contract perfusion groups by the Company's 
competitors, the breadth of the Company's product offerings relative to those 
competitors controlling contract perfusion groups, and the degree to which 
the Company's research and development and marketing efforts result in the 
successful commercialization of products with enhanced or superior 
performance characteristics.

          The Company's primary competitors within the heart/lung bypass 
market include COBE Cardiovascular Inc. (a subsidiary of Gambro, Inc.), 
Medtronic, Inc., the Bentley Division of Baxter Healthcare Corporation, C.R. 
Bard Inc., Sorin Biomedical, Inc. (a subsidiary of Fiat), Terumo Medical 
Corporation and SARNS Inc. (a subsidiary of 3M Company). 

          The Company believes that the principal competitive factors in the 
market for heart/lung bypass and long-term respiratory support products are 
product performance, quality, price, ease of use, technical innovation, 
cost-effectiveness, field sales support, customer service and breadth of 
product line.  The Company intends to continue to compete on the basis of its 
high performance products, innovative technologies, cost-effective 
manufacturing techniques, close customer relations and support and its 
strategy to increase and enhance, as dictated by market conditions, its 
offerings of products within the heart/lung bypass circuit and other medical 
device technologies. 

MANUFACTURING

          The Company manufactures oxygenators and other products and 
assembles custom tubing packs at its U.S. facility located in Minneapolis, 
Minnesota.  The Company also performs certain final manufacturing processes 
with respect to its oxygenators and blood reservoirs and assembles SIGNATURE 
custom tubing packs at its Bellshill, Scotland facility. 

          The Company's U.K. and U.S. manufacturing facilities have been 
inspected by the British Standards Institute ("BSI") and, as a result, the 
Company has received ISO 9001 certification.  BSI is also the "Notified Body" 
that has verified that the Company's quality certification procedures conform 
with the essential requirements necessary for the Company to prepare a 
Declaration of Conformity and therefore place the "CE" mark on its products.  
See "Governmental Regulation" on page 14. 

          As a part of the development process for new products, the Company 
simultaneously designs and develops manufacturing processes and equipment to 
be used to manufacture the products.  Because of the Company's ability to 
design and produce its manufacturing equipment internally in conjunction with 
new product development, the Company has been able to implement a highly 
automated, cost-efficient manufacturing process for the products in its 
AFFINITY line.  

          The Company manufactures its oxygenators, blood pump, blood 
reservoirs and ancillary products from standard raw materials, components and 
custom manufactured components presently purchased from outside suppliers.  
The Company intends to continue to purchase these raw materials, components 
and custom-manufactured components from outside suppliers in the future.  
While the Company believes that the raw materials, components and custom 
manufactured components used in the manufacture of its products are readily 
available from multiple sources, certain of these items are purchased from 
single 


                                       13

<PAGE>

sources.  Although the Company has qualified, or is in the process of 
investigating, alternate sources of supply for key components and materials, 
any significant interruption in supply of these items could have a material 
adverse effect on the Company's ability to manufacture its products.  The 
Company has not experienced shortages or significant delays in supply of 
these materials and components from its suppliers. 

GOVERNMENTAL REGULATION

          The Company's products, development activities and manufacturing 
processes are subject to regulation by numerous governmental authorities, 
principally the FDA and corresponding foreign agencies. In the United States, 
the FDA administers the Federal Food, Drug and Cosmetics Act and amendments 
thereto, including the Safe Medical Devices Act of 1990.  The Company is 
subject to the standards and procedures with respect to manufacture and 
marketing of medical devices contained in the Federal Food, Drug and 
Cosmetics Act and the regulations promulgated thereunder and is subject to 
inspection by the FDA for compliance with such standards and procedures.  
Noncompliance with applicable requirements can result in, among other things, 
fines, injunctions, civil penalties, recall or seizure of products, total or 
partial suspension of production, failure of the government to grant 
premarket clearance or premarket approval for devices, withdrawal of 
marketing approvals and criminal prosecution.

          In the United States, medical devices are classified into one of 
three classes (class I, II or III), on the basis of the controls deemed 
necessary by the FDA to reasonably assure their safety and effectiveness. 
Under FDA regulations, class I devices are subject to general controls (E.G., 
labeling, premarket notification and adherence to good manufacturing 
practices) and class II devices are subject to general and special controls 
(E.G., performance standards, postmarket surveillance, patient registries and 
FDA guidelines ).  In general, class III devices (E.G., life-sustaining, 
life-supporting and implantable devices, or new devices which have not been 
found substantially equivalent to a legally marketed device), in addition to 
being subject to general and special controls, must receive premarket 
approval ("PMA") by the FDA to ensure their safety and effectiveness.

          Before a new or significantly modified device can be introduced 
into the market, the manufacturer must generally obtain marketing clearance 
through a 510(k) notification or approval of a PMA application. A 510(k) 
clearance will be granted if the proposed device is "substantially 
equivalent" to a predicate device (I.E., a legally marketed class I or class 
II medical device, or a class III medical device for which the FDA has not 
called for the submission of a PMA application).  Commercial distribution of 
a device for which a 510(k) notification is required can begin only after the 
FDA issues a written determination that the device is "substantially 
equivalent" to a predicate device.  The FDA may determine that a proposed 
device is not substantially equivalent to a predicate device, or that 
additional information or data are needed before a substantial equivalence 
determination can be made.  A request for additional data may require that 
clinical studies of the device's safety and efficacy be performed. The 
process of obtaining a 510(k) clearance typically can take several months to 
a year or longer.

          A PMA application must be filed if a proposed device is not 
substantially equivalent to a legally marketed class I or class II device, or 
if it is a class III device for which the FDA has called for a PMA 
application.  Certain class III devices that were on the market before May 
28, 1976 ("preamendments class III devices"), and devices that are 
substantially equivalent to them, can be brought to market through the 510(k) 
process until the FDA calls for the submission of PMA applications for 
preamendments class III devices. The process of obtaining a PMA can be 
expensive, uncertain and lengthy, frequently requiring anywhere from one to 
several years from the date the PMA is submitted to the FDA, if approval is 
obtained at all.  Moreover, a PMA application, if granted, may include 
significant limitations on the indicated uses for which a product may be 
marketed.  FDA enforcement policy strictly limits the marketing of approved 


                                       14

<PAGE>


medical devices for unapproved or "off label" uses.  In addition, product 
approvals can be withdrawn for failure to comply with regulatory standards or 
the occurrence of unforeseen problems following initial marketing. All of the 
Company's current products have been the subject of successful 510(k) 
submissions, and the Company believes that its products currently in 
development will also be eligible for the 510(k) submission process, although 
there can be no assurance that the FDA will agree with this view. 

          Certain of the Company's products are within product categories set 
forth in an FDA order dated August 14, 1995, issued to all manufacturers of 
these devices, which requires all of such manufacturers to submit additional 
data to the FDA regarding the safety and the efficacy of the identified 
devices.  The products affected include the Company's blood oxygenators, 
arterial filters and defoamers, which, by current FDA interpretation, include 
both cardiotomy and venous blood reservoirs.  Each of these devices is 
currently classified by the FDA as a class III medical device which, because 
they were viewed as substantially equivalent to preamendments class III 
devices, were cleared for marketing through the 510(k) premarket notification 
process.  Through its August 14, 1995 order, the FDA has requested data from 
the Company and other manufacturers of these devices in order to make a 
determination as to whether these products should be reclassified as either 
class I or class II medical devices.  If the FDA were to determine that such 
devices should remain classified as class III medical devices, it would 
require manufacturers such as the Company to submit PMA applications 
concerning such devices within 90 days after the final FDA classification 
order.

          The Company has gathered the required data for submission to the 
FDA, and is working with various industry groups and the FDA to seek 
reclassification of these devices.  Although the FDA order requiring the 
submission of data on blood oxygenators and arterial filters has 
characterized these devices as having a high potential for 
down-classification, and the Company believes that the devices will be 
reclassified, there can be no assurance that these devices will be 
reclassified.  Although the FDA order requesting data on defoamers has 
characterized these devices as unlikely to be reclassified, and, therefore, 
likely to require PMA submission, the Company is currently working to seek 
down-classification.  The Company's efforts, in conjunction with those of 
other manufacturers, are based on the belief that the types of blood 
reservoirs currently used in heart/lung bypass circuits are significantly 
different from the defoamers used with older, bubble-type oxygenators, and, 
based on safety and efficacy data, should be reclassified.  While there can 
be no assurance that these efforts will be successful, the Company believes 
that the likelihood of reclassification of blood reservoirs is currently 
greater than indicated in the FDA order.  Reclassification data on all of the 
affected products was submitted to the FDA for review on February 13, 1998.  
In the event that any of the devices are not reclassified, the Company and 
its competitors may be required to submit a PMA application.  During the 
gathering and submission of data for any such PMA application and throughout 
the FDA review of this information, the Company and its competitors would 
most likely be allowed to continue marketing their products.  As discussed 
above, the PMA application process can be expensive, uncertain and lengthy, 
and, if required, could have a material adverse effect on the Company's 
future business, financial condition or results of operations. 

          The Company is also subject to regulation in each of the foreign 
countries in which it sells its products with regard to product standards, 
packaging requirements, labeling requirements, import restrictions, tariff 
regulations, duties and tax requirements.  Many of the regulations applicable 
to the Company's products in such countries are similar to those of the FDA.  
The national health or social security organizations of certain of such 
countries require the Company's products to be qualified before they can be 
marketed in those countries.  The Company relies on its independent 
distributors and Company regulatory personnel, in countries where the Company 
has employed direct sales personnel, to comply with the majority of the 
foreign regulatory requirements. To date, the Company has not experienced 
significant difficulty in complying with these regulations.


                                       15

<PAGE>

          The Company is subject to periodic inspections by the FDA, which is 
charged with auditing the Company's compliance with quality assurance systems 
established by the FDA and other applicable government standards.  The 
Company is also subject to inspections by the United Kingdom's Medical 
Devices Directorate ("MDD") and other European regulatory agencies.  Strict 
regulatory action may be initiated in response to audit deficiencies or to 
product performance problems.  The Company believes that its manufacturing 
and quality control procedures are in compliance with the requirements of the 
FDA and MDD regulations.  The Company's manufacturing facilities and 
processes are also subject to periodic inspection and review by BSI in 
conjunction with the Company's ISO 9001 certification.  ISO certification is 
a series of standards that define the basics of establishing, documenting and 
maintaining an effective production quality management system.  The Company 
believes that ISO certification creates value for the Company both 
internally, by providing an objective criteria for measuring the Company's 
quality assurance efforts, and externally, through customer recognition of, 
and demand for, products manufactured by ISO certified manufacturers. 

          BSI is also the "Notified Body" that has verified that the 
Company's quality certification procedures conform with the "essential 
requirements" set forth by the MDD for the class of products produced by the 
Company.  Conformity with these essential requirements enables the Company to 
prepare a Declaration of Conformity which supports the placement of the "CE" 
mark on the Company's products.  The CE mark enables the Company's products 
to be marketed, sold and used throughout the European Union (the "EU"), 
subject to limited "safeguard" powers of member states.  Presently, the CE 
mark is not required to be affixed to the Company's products (or those of its 
competitors) sold in the EU, but may be affixed during a transition period 
currently in effect and which began January 1, 1995.  This transition period 
will end in June 1998, when all of the Company's products (and those of its 
competitors) will be required to comply with the essential requirements in 
order to be marketed in the EU. 

          The financial arrangements through which the Company markets, sells 
and distributes its products may be subject to certain federal and state laws 
as well as regulations in the United States with respect to the provision of 
services or products to patients who are Medicare or Medicaid beneficiaries. 
The "fraud and abuse" laws and regulations prohibit the knowing and willful 
offer, payment or receipt of anything of value to induce the referral of 
Medicare or Medicaid patients for services or goods.  In addition, the 
physician anti-referral laws prohibit the referral of Medicare or Medicaid 
patients for certain "Designated Health Services" to entities in which the 
referring physician has an ownership or compensation interest.  Violations of 
these laws and regulations may result in civil and criminal penalties, 
including substantial fines and imprisonment.  In a number of states, the 
scope of fraud and abuse or physician anti-referral laws and regulations, or 
both, have been extended to include the provision of services or products to 
all patients, regardless of the source of payment, although there is 
variation from state to state as to the exact provisions of such laws or 
regulations.  In other states, and, on a national level, several health care 
reform initiatives have been proposed which would have a similar impact.  The 
Company believes that its operations and its marketing, sales and 
distribution practices currently comply in all respects with all current 
fraud and abuse and physician anti-referral laws and regulations, to the 
extent they are applicable.  Although the Company does not believe that it 
will need to undertake any significant expense or modification to its 
operations or its marketing, sales and distribution practices to comply with 
federal and state fraud and abuse and physician anti-referral regulations 
currently in effect or proposed, financial arrangements between manufacturers 
of medical devices and other health care providers may be subject to 
increasing regulation in the future.  Compliance with such regulation could 
adversely affect the Company's marketing, sales and distribution practices, 
and may affect the Company in other respects not presently foreseeable, but 
which could have a material adverse impact on the Company's business, 
financial condition and results of operations.  


                                       16

<PAGE>

THIRD-PARTY REIMBURSEMENT AND COST CONTAINMENT

          The Company's products are purchased by hospitals and other users, 
which then bill various third-party payors for the health care products and 
services provided to the patients.  These payors, which include Medicare, 
Medicaid, private insurance companies and managed care organizations, 
reimburse part or all of the costs and fees associated with the procedures 
performed with these devices. 

          Medicare and Medicaid reimbursement for hospitals is based on a 
fixed amount for admitting a patient with a specific diagnosis.  Because of 
this fixed reimbursement method, hospitals have incentives to use less costly 
methods in treating Medicare and Medicaid patients, and will frequently make 
capital expenditures to take advantage of less costly treatment technologies. 
Frequently, reimbursement is reduced to reflect the availability of a new 
procedure or technique and, as a result, hospitals are generally willing to 
implement new cost saving technologies before these downward adjustments take 
effect.  Likewise, because the rate of reimbursement for certain physicians 
who perform certain procedures has been, and may in the future be, reduced in 
the event of further changes in the resource-based relative value scale 
method of payment calculation, physicians may seek greater cost efficiency in 
treatment to minimize any negative impact of reduced reimbursement.  Any 
amendments to existing reimbursement rules and regulations which restrict or 
terminate the reimbursement eligibility (or the extent or amount of coverage) 
of medical procedures using the Company's products or the eligibility (or the 
extent or amount of coverage) of the Company's products could have a material 
adverse impact on the Company's business, financial condition and results of 
operations. 

          In response to the focus of national attention on rising health 
care costs, a number of changes to reduce costs have been proposed or have 
begun to emerge. There have been, and may continue to be, proposals by 
legislators and regulators and third-party payors to curb these costs.  There 
has also been a significant increase in the number of Americans enrolling in 
some form of managed care plan, and over 80% of hospitals participate in or 
have agreements with HMOs.  It has become a typical practice for hospitals to 
affiliate themselves with as many managed care plans as possible.  Higher 
managed care penetration typically drives down the prices of health care 
procedures, which in turn places pressure on medical supply prices.  This 
causes hospitals to implement tighter vendor selection and certification 
processes, by reducing the number of vendors used, purchasing more products 
from fewer vendors and trading discounts on price for guaranteed higher 
volumes to vendors.  Hospitals have also sought to control and reduce costs 
over the last decade by joining group purchasing organizations or purchasing 
alliances. The Company cannot predict what continuing or future impact 
existing or proposed legislation, regulation or such third-party payor 
measures may have on its future business, financial condition or results of 
operations. 

          Because the primary application of the Company's products is in 
coronary bypass procedures, changes in reimbursement policies and practices 
of third-party payors with respect to coronary bypass surgery could have a 
substantial and material adverse impact on sales of the Company's heart/lung 
bypass products.  The development or increased use of more cost-effective 
treatments for coronary artery disease could cause such payors to decrease or 
deny reimbursement for coronary bypass surgery or to favor these other 
treatments. 


                                       17

<PAGE>

PATENTS AND PROPRIETARY RIGHTS

          The Company protects its technology by filing patent applications 
for the patentable technologies that it considers important to the 
development of its business.  The Company also relies upon trade secrets, 
know-how and continuing technological innovations to develop and maintain its 
competitive position. 

          The Company currently holds eight U.S. patents and has three 
pending U.S. patent applications.  In addition, the Company has six pending 
foreign patent applications.  Four of the Company's present U.S. patents 
cover significant design features of the AFFINITY oxygenator, including the 
AFFINITY oxygenator's winding mandrel, graduated density fiber bundle and 
heat exchanger water diverter.  The Company's other issued U.S. Patents cover 
the designs of the AFFINITY venous blood reservoirs and AFFINITY arterial 
filter.  Also, the Company owns a patent relating to the use of its silicone 
membrane for cell culture applications. The Company has pending U.S. Patent 
applications relating to additional features of the AFFINITY venous blood 
reservoir, the AFFINITY arterial filter and its improved MYOTHERM XP 
cardioplegia heat exchanger.  The Company's pending foreign patent 
applications consist of selected overseas filings addressing the same 
intellectual property addressed by the Company's issued and pending U.S. 
Patents.

          The three U.S. patents acquired by the Company from the Predecessor 
Business cover the Company's solid silicone membrane oxygenator product line 
and have expired.  The Company believes that the market for solid silicone 
membrane oxygenators might not be large enough to justify the expenses 
associated with market entry by a competitor, and therefore, the effect of 
the expiration of these patents on the revenues of the Company will not be 
material. 

          The Company, like other firms that engage in the development and 
marketing of medical technology products, must address issues and risks 
relating to patents and trade secrets.  There can be no assurance that any of 
the Company's pending or future U.S. or foreign patent applications will 
result in issued patents, that any current or future U.S. or foreign patents 
of the Company will not be challenged or circumvented by competitors or 
others, or that such patents will be found to be valid or sufficiently broad 
to protect the Company's technology or provide the Company with its desired 
competitive advantage.  The validity and breadth of claims covered in medical 
technology patents involve complex legal and factual questions and therefore 
may be highly uncertain.  The Company may be required to institute litigation 
to enforce patents issued to the Company or to determine the enforceability, 
scope and validity of the proprietary rights of others. 

          The Company also relies on trade secrets and proprietary know-how 
which it seeks to protect, in part, through confidentiality agreements with 
employees, consultants and other parties.  There can be no assurance that 
these agreements will not be breached, that the Company will have adequate 
remedies for any breach, or that the Company's trade secrets will not 
otherwise become known to or independently developed by competitors. 

          Claims by competitors and other third parties that the Company's 
products allegedly infringe the patent rights of others could have a material 
adverse effect on the Company.  The medical device industry is characterized 
by frequent and substantial intellectual property litigation.  Intellectual 
property litigation is complex and expensive, and the outcome of such 
litigation is difficult to predict.  

          In March 1997, the Company filed a suit in U.S. District Court for 
the District of Minnesota, seeking to invalidate a newly issued U.S. patent 
held by Minntech Corporation ("Minntech"), a competing manufacturer of blood 
oxygenators and other medical devices, and requesting a determination that 
the Company's AFFINITY oxygenator does not infringe the Minntech patent.  The 
Company filed the 


                                       18

<PAGE>

suit in response to a December 1996 letter from Minntech, alleging that the 
AFFINITY oxygenator infringes certain claims under Minntech's patent, and 
requesting discussion regarding a possible license agreement.  On October 6, 
1997, the Magistrate Judge of the United States District Court vacated a 
previous order and granted a stay in the proceedings, including the 
suspension of discovery, pending the outcome of Minntech's request for 
re-issuance of the aforementioned patent.  See "Legal Proceedings" on 
page 25.  

          The Company's action against Minntech and any future litigation, 
regardless of outcome, could result in substantial expense to the Company and 
significant diversion of the efforts of the Company's technical and 
management personnel. In addition, if Minntech were successfully to bring an 
infringement counterclaim against the Company, or if the Company were to be 
subject to an adverse determination in any other legal proceeding in the 
future alleging patent infringement, the Company could become subject to an 
injunction preventing the manufacture and sale of the infringing products and 
to monetary damages, or might be forced to seek a license from the party 
alleging patent infringement in order to continue to manufacture and sell any 
infringing products, which it might not be able to obtain.  The outcome of 
any such legal action, including the possibility of entering into such a 
license, could have a material adverse effect on the Company's business, 
financial condition and results of operations. 

          Pursuant to an Asset Purchase Agreement dated June 7, 1991 ("Asset 
Purchase Agreement"), for approximately $1 million in cash and a $2.5 million 
note, the Company acquired the business and assets, and assumed certain 
liabilities, of the Predecessor Business.  In addition, under the terms of a 
Royalty Agreement dated June 7, 1991 ("Royalty Agreement"), the Company is 
obligated to pay to SCIMED Life Systems, Inc. ("SCIMED") specified royalties 
based on a percentage of net sales (as defined) of products previously 
manufactured by the Predecessor Business and future products developed from 
then-existing technology if the Company achieves certain net sales thresholds 
with those products.  The Royalty Agreement also provides for royalty 
payments on certain new generations of developed products, if any, which use 
certain technology embodied in the then-existing models of such products.   
In June 1996, the Royalty Agreement expired with respect to products 
previously manufactured by the Predecessor Business and expires with respect 
to current products under development at the time of the acquisition and 
certain new generation products in June 2001.  The Company has charged 
$95,000 in 1996 and $178,000 in 1995 to operations for royalties due under 
the Royalty Agreement for sales of products previously manufactured by the 
Predecessor Business.  No related royalty amounts accrued in 1997.  The 
Company believes that none of the products in the AFFINITY line nor any of 
the Company's products currently under development (including the products 
with the TRILLIUM coating applied) will require royalty payments under the 
Royalty Agreement.

          In connection with the Asset Purchase Agreement, SCIMED also 
assigned to the Company ten trademarks (one of which is registered) related 
to the Company's current line of products previously manufactured by the 
Predecessor Business.

          The Company entered into a royalty agreement in connection with the 
Company's acquisition of an exclusive license to market the AFFINITY blood 
pump. The agreement requires the Company to make payments based on net sales 
of the pump chamber (the disposable portion of the AFFINITY blood pump 
system) and net profits of the pump console (the equipment portion of the 
AFFINITY blood pump system) through August 2002.  The term of the agreement 
may be extended by the Company until the expiration of the last to expire of 
the patents covered by this agreement or the useful life of the know-how (as 
defined) licensed, whichever is longer.  Under the terms of the agreement, 
the Company is required to pay minimum royalties each year.  The Company 
incurred royalties of $55,000 for the year ended December 31, 1997  exceeded 
the minimum royalty related to the first year of the royalty agreement.


                                       19

<PAGE>


          The Company also has use of an exclusive license allowing it to 
apply its TRILLIUM bio-passive surface to its products.  The agreement 
requires the Company to make quarterly payments based on a percentage of net 
sales of products utilizing the bio-passive surface.  The Company can retain 
exclusivity of the license if it pays minimum annual royalties.  The Company 
incurred royalties of $35,000 for the year ended December 31, 1997 under this 
agreement.

EMPLOYEES

          As of December 31, 1997, the Company employed 339 persons full-time 
including 29 in research and development, 223 in manufacturing, 53 in sales 
and marketing and 34 in general and administrative functions.  The Company's 
employees are not represented by a union, and the Company considers its 
relationship with its employees to be good. 

(D)       FINANCIAL INFORMATION ABOUT FOREIGN AND DOMESTIC OPERATIONS AND 
          EXPORT SALES.

          Financial information about the Company's foreign and domestic 
operations and export sales is contained in Note 6 to the Company's 
Consolidated Financial Statements on page 18 of the Company's 1997 Annual 
Report and is incorporated herein by reference.

ITEM 1A   IMPORTANT FACTORS. 

The following factors are important and should be considered carefully in
connection with any evaluation of the Company's business, financial condition,
results of operations and prospects.  Additionally, the following factors could
cause the Company's actual results to differ materially from those reflected in
any forward-looking statements of the Company.

HIGHLY COMPETITIVE INDUSTRY

          The cardiovascular device market in which the Company competes is 
characterized by intense competition.  This market is dominated by 
established manufacturers that have broader product lines, greater 
distribution capabilities, substantially greater capital resources and larger 
marketing, research and development staffs and facilities than the Company.  
Many of these competitors offer broader product lines than the Company within 
the specific heart/lung bypass product market and/or in the general field of 
medical devices and supplies, giving these competitors advantages in 
marketing and pricing their competing products.  In addition, the Company's 
competitors will continue to use price reductions to preserve market share in 
the oxygenator and other product markets.  There can be no assurance that the 
Company's competitors will not use more significant and more prolonged price 
competition across the Company's product lines in the future.  Although with 
the addition of the Affinity blood pump the Company now offers a complete 
line of proprietary devices comprising the major components of the heart/lung 
bypass circuit, in order to compete more effectively with competitors the 
Company will continue working toward a more complete line of devices for the 
heart/lung bypass circuit with superior product performance at a competitive 
price.  Even if the Company is able to develop or is thought to have 
developed such a line of products, there can be no assurance that the Company 
will be able to compete effectively. 

          During 1995 and 1996, one of the Company's competitors, the Bentley 
Division of Baxter Healthcare Corporation ("Baxter"), purchased three 
companies that provide contract perfusion services to hospitals.  Although 
the Company believes that it is too early to assess the long-term effect of 
these acquisitions on the Company's business, sales to contract perfusion 
groups controlled by one of the 


                                       20

<PAGE>

Company's competitor decreased $750,000 to $1,100,000 for 1997 from 
$1,850,000 for 1996.  The Company believes that control of contract perfusion 
groups by its competitors will continue to have a negative impact on the 
Company's ability to market its products to such groups or to hospitals or 
other medical providers that contract with competitor-controlled groups for 
perfusion services.  These acquisitions, or other acquisitions by the 
Company's competitors of other companies providing contract perfusion 
services, could have a material adverse effect on the Company's future 
business, financial condition and results of operations.

DEPENDENCE ON MARKET ACCEPTANCE

          The Company's products are intended to replace products currently 
being sold by its competitors. The success of the Company will depend, among 
other things, on the acceptance by the market of the Company's current 
products and the products it develops and introduces in the future.  The 
Company believes it has developed and intends to further develop 
cost-competitive products that provide clinical performance advantages and 
convenience benefits to achieve more of a competitive advantage.  Product 
development is expensive, and there can be no assurance that the Company's 
future product development efforts will further result in technologically 
superior products that can be manufactured at a reasonable cost.  In 
addition, there is no assurance that the market will accept the Company's 
product offerings as superior to those currently available or that, if 
accepted as superior, the Company's product offerings will achieve 
significant sales due to the broader product lines, greater distribution 
capabilities, substantially greater capital resources and larger marketing 
staffs of the Company's competitors.  Also, there can be no assurance that 
the Company's competitors will not succeed in developing or marketing 
products that are viewed by the marketplace as providing superior clinical 
performance or are less expensive as compared to the products currently 
marketed or to be developed by the Company.

PATENTS AND PROPRIETARY RIGHTS

          The Company protects its technology through patents and trade 
secrets. There can be no assurance that any pending or future patent 
applications will result in issued patents or that any current or future 
patents will not be challenged, invalidated or circumvented or that the 
rights granted thereunder will provide any competitive advantage to the 
Company.  There can also be no assurance that the Company's trade secrets or 
confidentiality agreements will provide meaningful protection of the 
Company's proprietary information or, in the event of a breach of any 
confidentiality agreement, that the Company will have adequate remedies.  
Furthermore, there can be no assurance that others will not independently 
develop similar technologies or duplicate any technology developed by the 
Company or that the Company's technology will not infringe patents or other 
rights owned by others.

          Claims by competitors and other third parties alleging that the 
Company's products infringe the patent rights of others could have a material 
adverse effect on the Company.  The medical device industry is characterized 
by frequent and substantial intellectual property litigation.  Intellectual 
property litigation is complex and expensive, and the outcome of such 
litigation is difficult to predict.  In March 1997, the Company filed a 
lawsuit seeking to invalidate a newly issued U.S. patent held by Minntech 
Corporation ("Minntech"), a competing manufacturer of blood oxygenators and 
other medical devices, and requesting a determination that the Company's 
AFFINITY oxygenator does not infringe the Minntech patent.  The Company filed 
the suit in response to a December 1996 letter from Minntech, alleging that 
the AFFINITY oxygenator infringes certain claims under Minntech's patent, and 
requesting discussion regarding a possible license agreement.  The Company's 
action against Minntech and any future litigation, regardless of outcome, 
could result in substantial expense to the Company and significant diversion 
of the efforts of the Company's technical and management personnel.  In 
addition, if Minntech 


                                       21

<PAGE>

were successful in bringing an infringement counterclaim against the Company, 
or if the Company were to be subject to an adverse determination in any other 
future legal proceeding alleging patent infringement, the Company could 
become subject to an injunction preventing the manufacture and sale of the 
infringing products and to monetary damages, or might be forced to seek a 
license from the party alleging patent infringement in order to continue to 
manufacture and sell any infringing products, which it might not be able to 
obtain.  The outcome of any such legal action, including the possibility of 
entering into such a license, could have a material adverse effect on the 
Company's business, financial condition and results of operations.  See 
"Legal Proceedings" on page 25.

RISK OF TECHNOLOGICAL OBSOLESCENCE

          The markets for the Company's current and future products are 
highly dependent on the number of surgical procedures performed each year 
requiring heart/lung bypass.  The number of surgical procedures requiring 
heart/lung bypass is dependent on a range of factors, including the incidence 
of coronary artery disease, the effectiveness of alternative treatments for 
coronary artery disease and the availability of third-party reimbursement for 
heart/lung bypass procedures and other treatments.  In addition, new surgical 
and other interventional procedures and/or drugs may be developed and become 
accepted in the future which could reduce the importance of procedures that 
use the Company's products. Accordingly, the Company's success will depend in 
large part on the continued importance of surgical procedures that use the 
Company's products and on the Company's ability to respond quickly to medical 
and technological changes through the development and introduction of new, 
cost-effective products.  There can be no assurance that the Company's 
existing products or products in development will offer the same benefits at 
comparable prices as competing products, or that the Company's competitors 
will not develop new technologies that render the Company's products obsolete 
or not cost-competitive.

DEPENDENCE ON INTERNATIONAL DISTRIBUTOR SALES

          Sales to distributors constitute a significant portion of the 
Company's business in foreign markets.  With the exception of employing 
direct sales forces in the United Kingdom, France and Canada, all other 
international markets are served by distributors.  The Company is dependent 
on these distributors to generate revenues from these foreign markets.  There 
can be no assurance that such distributors will devote adequate resources to 
selling the Company's products. There can also be no assurance that the 
Company will be able to maintain its relationships with significant 
distributors, or, in the event of termination of such relationships, that new 
distributors will be found.  The loss of a significant distributor could 
materially adversely affect the Company's future business, financial 
condition and results of operations if a new distributor or other suitable 
sales organization could not be found on a timely basis in the relevant 
geographic market.

          Changes in international economic conditions, including currency 
exchange rates, could also have a material adverse effect on the Company's 
business, financial condition and results of operations.  Substantially all 
of the international transactions handled by the Company's distributors are 
denominated in U.S. dollars.  Fluctuations in currency exchange rates may 
therefore reduce demand for the Company's products by increasing the price of 
the Company's products in the currency of the countries in which the products 
are sold.  This situation will also reduce the distributors profitability and 
may cause the distributor to seek pricing concessions from the Company thus 
potentially reducing the Company's revenues and gross margins.


                                       22

<PAGE>

GOVERNMENTAL REGULATION

          Company's products, development activities and manufacturing 
processes are subject to extensive and rigorous regulation by the FDA and by 
comparable agencies in foreign countries.  In the United States, the FDA 
regulates the introduction of medical devices as well as manufacturing, 
labeling and recordkeeping procedures for such products.  The process of 
obtaining marketing clearance from the FDA for new products can be time 
consuming and expensive, and there is no assurance that such clearances will 
be granted or that FDA review will not involve delays that would adversely 
affect the Company's ability to commercialize additional products.  Even if 
regulatory approvals to market a product are obtained from the FDA, these 
approvals may entail limitations on the indicated uses of the product.  
Marketing clearances by the FDA can also be withdrawn due to failure to 
comply with regulatory standards or the occurrence of unforeseen problems 
following initial approval.  The FDA could also limit or prevent the 
manufacture or distribution of the Company's products and has the power to 
require the recall of such products.  The FDA, various state agencies and 
foreign regulatory agencies inspect the Company and its facilities from time 
to time to determine whether the Company is in compliance with various 
regulations relating to manufacturing practices, validation, testing, quality 
control and product labeling.  A determination that the Company is in 
violation of such regulations could lead to imposition of civil penalties, 
including fines, product recalls or product seizures and, in extreme cases, 
criminal sanctions. 

          A significant portion of the Company's revenues are dependent upon 
sales of its products outside the United States through indpeendent 
distributors. International regulatory bodies have established varying 
regulations governing product standards, packaging requirements, labeling 
requirements, import restrictions, tariff regulations, duties and tax 
requirements. The Company relies on its independent distributors and Company 
regulatory personnel, in countries where the Company has employed direct 
sales personnel, to comply with the majority of the foreign regulatory 
requirements. The inability or failure of independent distributors to comply 
with the varying regulations or the imposition of new regulations could 
retrict such distributors' ability to sell the Company's products 
internationally and thereby adversely effect the Company's future business, 
financial condition and results of operations.

LIMITATIONS ON THIRD-PARTY REIMBURSEMENT

          The Company's products are purchased by hospitals and other users, 
which bill various third-party payors, such as government health programs, 
private health insurance plans, managed care organizations and other similar 
programs, for the health care goods and services provided to their patients.  
Third-party payors are increasingly challenging the prices charged for 
medical products and services and, in some instances, have put pressure on 
medical suppliers to lower their prices.  The Company is unable to predict 
what changes will be made in the reimbursement methods used by third-party 
health care payors.  There can be no assurance that the treatment of coronary 
artery disease using coronary artery bypass graft surgery will be considered 
cost-effective by third-party payors, that reimbursement for such surgery 
will be available or, if available, that payors' reimbursement levels will 
not adversely affect the Company's ability to sell its products on a 
profitable basis.  In addition, the cost of health care has risen 
significantly over the past decade, and there have been, and may continue to 
be, proposals by legislators and regulators to curb these costs. Legislative 
action limiting reimbursement for certain procedures could have a material 
adverse effect on the Company's future business, financial condition and 
results of operations.


                                       23

<PAGE>

EXPOSURE TO PRODUCT LIABILITY CLAIMS; RISK OF PRODUCT RECALL

          The medical device industry historically has been litigious, and 
the manufacture and sale of the Company's products inherently entails a risk 
of product liability claims.  Although the Company maintains product 
liability insurance in amounts believed to be adequate based upon the nature 
and risks of its business in general and its actual experience to date, there 
can be no assurance that one or more liability claims will not exceed the 
coverage limits of such policies or that such insurance will continue to be 
available on commercially reasonable terms, if at all.  Further, the Company 
does not expect to be able to obtain insurance covering its costs and losses 
as the result of any recall of its products due to alleged defects, whether 
or not such a recall is instituted by the Company or required by a regulatory 
agency. While the Company has not experienced any product liability claims or 
recalls to date, a product liability claim, recall or other claim with 
respect to uninsured liabilities or in excess of insured limits could have a 
material adverse effect on the future business, financial condition and 
results of operations of the Company.

ATTRACTION AND RETENTION OF KEY PERSONNEL

          The Company is dependent in large part upon its ability to attract 
and retain qualified scientific, technical and key management personnel due 
to the specialized scientific nature of the Company's business.  There is 
intense competition for qualified personnel in the Company's industry and 
there can be no assurance that the Company will be able to continue to 
attract and retain qualified personnel for the development of its business.

INTERRUPTION IN SOURCES OF SUPPLY

          The Company currently purchases, and will continue to purchase, raw 
materials and components for its products from outside vendors.  Certain of 
the components used in the Company's products are purchased from single 
sources. Although the Company has qualified, or is in the process of 
investigating, alternate sources of supply for key components, any 
significant interruption in supply could have a material adverse effect on 
the Company's future business, financial condition and results of operations.

ITEM 2.   PROPERTIES.

          The Company's principal executive offices, research and development 
facilities and U.S. manufacturing facilities are located at 7611 Northland 
Drive, Minneapolis, Minnesota, consisting of approximately 100,000 square 
feet.

          The Company's United Kingdom manufacturing facility is located at 
Phoenix Crescent, Strathclyde Business Park, Bellshill, Scotland, U.K. 
ML43NJ, consisting of approximately 15,000 square feet.  The Company leases 
such space through its AVECOR Ltd. subsidiary pursuant to a lease expiring in 
2003.  The lease provides for monthly rent of approximately $10,000 (based on 
current exchange rates) until mid-1998 when the monthly rent is subject to 
adjustment based upon current Scotland rental market rates.  The Company also 
pays a pro rata share of operating expenses and real estate taxes.

          In July 1996, the Minnesota Pollution Control Agency granted the 
Company a five-year air emission facility permit for the Company's 
manufacturing operations at its facility located at 7611 Northland Drive, 
Minneapolis, Minnesota 55428.  The Company believes that it has been in 
compliance with this permit since its issuance and that it is in compliance 
in all material aspects with federal and state


                                       24

<PAGE>

laws relating to environmental matters.  However, expected future changes in 
federal or state regulations relating to air emissions could require the 
Company to install air emission control equipment or modify its manufacturing 
operations, which the Company believes would not have a material adverse 
effect on its business. 

ITEM 3.   LEGAL PROCEEDINGS.

          In March 1997, the Company filed suit in U.S. District Court for 
the District of Minnesota, seeking to invalidate a newly issued U.S. patent 
held by Minntech Corporation ("Minntech"), a competing manufacturer of blood 
oxygenators and other medical devices, and requesting a determination that 
the Company's AFFINITY oxygenator does not infringe the Minntech patent.  The 
Company filed the suit in response to a December 1996 letter from Minntech, 
alleging that the AFFINITY oxygenator infringes certain claims under 
Minntech's patent, and requesting discussion regarding a possible license 
agreement.  The Company reviewed the subject patent and concluded, based on 
an opinion from its patent counsel, that none of the claims in the patent are 
infringed by the AFFINITY oxygenator, and that the patent is, in any event, 
invalid.  On October 6, 1997, the Magistrate Judge of the United States 
District Court vacated a previous order and granted a stay in the 
proceedings, including the suspension of discovery, pending the outcome of 
Minntech's request for re-issuance of the aforementioned patent.  The expense 
and effort potentially required to bring this action, as well as the outcome 
of any counterclaim successfully brought against the Company by Minntech, 
could have a material adverse effect on the Company's business, financial 
condition and results of operations.

ITEM 4.   SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

          No matter was submitted for a vote of security holders during the 
fourth quarter of the fiscal year covered by this report.
               
ITEM 4A.  EXECUTIVE OFFICERS OF THE REGISTRANT.

          The Company's executive officers as of March 13, 1998, are as 
follows:

<TABLE>
<CAPTION>
NAME                 AGE    TITLE
- ----                 ---    -----
<S>                  <C>    <C>
Anthony Badolato     60     Chairman and Chief Executive Officer

Gregory J. Melsen    45     Vice President-Finance, Treasurer and Chief
Financial Officer

Allan R. Seck        52     Vice President-Marketing  and Sales

William S. Haworth   54     Vice President-Engineering
</TABLE>

          ANTHONY BADOLATO.  Mr. Badolato is a founder of the Company and has 
served as a director and Chief Executive Officer of the Company since April 
1991.  In May 1996, Mr. Badolato was named Chairman of the Company's Board of 
Directors. From April 1991 through January 1996, Mr. Badolato also served as 
President of the Company.  From January 1989 through September 1990, Mr. 
Badolato was Vice President - Research and Development and Manufacturing of 
Bio-Medicus, Inc. ("Bio-Medicus"), a specialty cardiovascular products 
company.  From 1969 to December 1988, Mr. Badolato was employed by Johnson & 
Johnson, a global health care company.  While employed by Johnson & Johnson, 
Mr. Badolato 


                                       25

<PAGE>

was employed by the Cardiovascular Division in various research and 
development and manufacturing positions over a period of 12 years, including 
Director of Research and Development from 1979 to 1988.

          GREGORY J. MELSEN.  Mr. Melsen has served as Vice 
President-Finance, Treasurer and Chief Financial Officer of the Company since 
January 1996.  From March 1994 through December 1995, Mr. Melsen was Chief 
Financial Officer of PACE Incorporated ("PACE"), a Minnesota-based 
environmental testing company that provided services through a national 
network of laboratories.  Mr. Melsen served as a consultant from June 1993 
through February 1994.  From September 1984 to June 1993, Mr. Melsen was an 
audit partner with the Minnesota office of Deloitte & Touche.  Mr. Melsen is 
a certified public accountant.

          ALLAN R. SECK.  Mr. Seck is a founder of the Company and has been 
Vice President-Marketing and Sales of the Company since October 1995, and 
Vice President - Marketing from April 1991 to September 1995.  From October 
1988 to September 1990, Mr. Seck was Vice President-Marketing of Bio-Medicus. 
From 1968 to 1988, he was employed by Johnson & Johnson, primarily in its 
Cardiovascular Division (and, after September 1987 by Medtronic Inc., its 
successor by acquisition), in various marketing positions, including Group 
Product Director and Director of Sales.

          WILLIAM S. HAWORTH.  Mr. Haworth has served as Vice President - 
Engineering since March 1997, Vice President-Research and Development of the 
Company from August 1993 to February 1997, and Director of Research and 
Development from August 1991 to July 1993.  From September 1983 to August 
1991, Mr. Haworth was employed by 3M Company in various research and 
development positions, including Technical Manager, Biosciences Laboratory 
from June 1988 to August 1991.  From August 1982 to August 1983, Mr. Haworth 
worked as an independent consultant to manufacturers in the medical device 
industry.  Prior to August 1982, Mr. Haworth was a College Lecturer in 
Engineering Science at Magdalen College, Oxford, working in a 
multidisciplinary team to develop heart valves, blood pumps, oxygenators and 
artificial kidneys.  Mr. Haworth is the author of numerous publications in 
scientific and technical journals.


                                       26

<PAGE>

                                      PART II

ITEM 5.   MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS.

          The information under the caption "Common Stock Information" in the 
Company's 1997 Annual Report is incorporated herein by reference.

          On July 31, 1997, the Company sold 4,500 shares of its Common Stock 
pursuant to the exercise of underwriter's warrants issued in March 1992 in 
connection with the Company's initial public offering.  All of such shares 
were sold to an individual formerly associated with the underwriter of that 
offering, and were sold at a price of $6.60 per share for a total 
consideration of $29,700.  This sale was conducted without a registration 
under the Securities Act of 1933, as amended, in reliance on the exemptions 
provided by Section 4(2) and Regulation D.

ITEM 6.   SELECTED FINANCIAL DATA.

          The financial information in the table under the caption "Financial 
Highlights" in the Company's 1997 Annual Report is incorporated herein by 
reference.
  
ITEM 7.   MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
          RESULTS OF OPERATIONS.

          The information under the caption "Management's Discussion and 
Analysis of Results of Operations and Financial Condition" in the Company's 
1997 Annual Report is incorporated herein by reference.

ITEM 7A.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.

          Not Applicable.

ITEM 8.   FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.

          The Company's Consolidated Financial Statements and related notes 
thereto and the Report of Independent Accountants in the Company's 1997 
Annual Report are incorporated herein by reference, as is the unaudited 
information set forth under the caption "Quarterly Operating Data" in the 
Company's 1997 Annual Report.

ITEM 9.   CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
          FINANCIAL DISCLOSURE.

          Not Applicable.


                                       27

<PAGE>

                                      PART III

ITEM 10.  DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT.

          (a)  DIRECTORS OF THE REGISTRANT.

          The information under the captions "Election of Directors - 
Information About Nominees" and "Election of Directors - Other Information 
About Nominees" in the Company's 1998 Proxy Statement is incorporated herein 
by reference.

          (b)  EXECUTIVE OFFICERS OF THE REGISTRANT.

          Information concerning Executive Officers of the Company is 
included in this Annual Report on Form 10-K under Item 4a, "Executive 
Officers of the Registrant."

          (c)  COMPLIANCE WITH SECTION 16(A) OF THE EXCHANGE ACT.

          The information under the caption "Section 16(a) Beneficial 
Ownership Reporting Compliance" in the Company's 1998 Proxy Statement is 
incorporated herein by reference.

ITEM 11.  EXECUTIVE COMPENSATION.

          The information under the captions "Election of Directors - 
Director Compensation" and "Executive Compensation" in the Company's 1998 
Proxy Statement is incorporated herein by reference.

ITEM 12.  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT.

          The information under the caption "Security Ownership of Certain 
Beneficial Owners and Management" in the Company's 1998 Proxy Statement is 
incorporated herein by reference.

ITEM 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS.

          None.


                                      28

<PAGE>


ITEM 14.  EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K

(a)  1.   Financial Statements, Related Notes, and Report of
          Independent Accountants:
                         
          The following items are incorporated herein by reference from the 
          pages indicated in the Company's 1997 Annual Report:

<TABLE>
<CAPTION>
                                                                                  PAGE(S) 
                                                                                ---------
                <S>                                                             <C>  
                Consolidated Balance Sheets as of December 31, 1997 and 1996 ..       10
                                                                                 
                Consolidated Statements of Operations for the years ended        
                December 31, 1997, 1996 and 1995 ..............................       11
                                                                                     
                Consolidated Statements of Changes in Shareholders' Equity for       
                the years ended December 31, 1997, 1996 and 1995 ..............       12 
                                                                                     
                Consolidated Statements of Cash Flows for the years ended            
                December 31, 1997, 1996 and 1995 ..............................       13
                                                                                     
                Notes to Consolidated Financial Statements .................... 14 to 19
                           
                Report of Independent Accountants .............................       20 
</TABLE>

     2.   Financial Statement Schedules:

          The unaudited selected quarterly financial data
          included under the caption Quarterly Operating Data on page 20 of
          the Company's 1997 Annual Report is incorporated herein by
          reference.
          
          The following financial statement schedule and report
          of independent accountants thereon are included herein and should
          be read in conjunction with the financial statements referred to
          above (page numbers refer to pages in this Annual Report on
          Form 10-K):

<TABLE>
               <S>                                                             <C>    
                Report of Independent Accountants on Financial 
                Statement Schedule ...........................................        32 

               Financial Statement Schedule:
                         

               II - Valuation and Qualifying Accounts ........................        33 
</TABLE>

          All other schedules are omitted as the required information is
          inapplicable or the information is presented in the financial
          statements or related notes.

     3.   Exhibits:

          The exhibits to this Annual Report on Form 10-K are listed in the
          Exhibit Index on pages E-1 to E-4 of this Report.


                                       29

<PAGE>

          A copy of any of the exhibits listed or referred to above will be
          furnished at $5.00 per exhibit  to any person who was a
          shareholder of the Company as of March 13, 1998, upon receipt
          from any such person of a written request for any such exhibit. 
          Such request should be sent to AVECOR Cardiovascular Inc., 7611
          Northland Drive, Minneapolis, Minnesota 55428, Attention: Chief
          Financial Officer.
 

          The following is a list of each management contract or
          compensatory plan or arrangement required to be filed as an
          exhibit to this Annual Report on Form 10-K pursuant to
          Item 14(c):
                     
              A.   1991 Stock Incentive Plan, as amended (Incorporated by
              reference to Exhibit 10.3 to the Company's Annual Report on Form
              10-K for the year ended December 31, 1996 (File No.0-21330)).
              
              B.   AVECOR Cardiovascular Inc. Employee Stock Purchase Plan
              (Incorporated by reference to Exhibit 28.1 to the Company's
              Registration Statement on Form S-8 (File No.0-21330)).
              
              C.   1995 Non-Employee Director Option Plan (Incorporated by
              reference to Exhibit 10.5 to the Company's Annual Report on Form
              10-K for the year ended December 31, 1996 (File No.0-21330)).
              
              D.   Confidentiality Agreement dated November 13, 1991 between
              the Company and Anthony Badolato (Incorporated by reference to
              Exhibit 10.7 to the Company's Registration Statement on Form S-1
              (File No. 33-45731)).
              
              E.   Confidentiality Agreement dated November 13, 1991 between
              the Company and Allan R. Seck (Incorporated by reference to
              Exhibit 10.10 to the Company's Registration Statement on Form S-1
              (File No. 33-45731)).
              
              F.   Form of Change in Control Agreement between the Company and
              each of Anthony Badolato, Gregory J. Melsen, Allan R. Seck and
              William S. Haworth (Incorporated by reference to Exhibit 10.10 to
              the Company's Annual Report on Form 10-K for the year ended
              December 31, 1996 (File No.0-21330)).
              
              G.   Form of Confidentiality Agreement between the Company and
              each of Gregory J. Melsen and William S. Haworth (Incorporated by
              reference to Exhibit 10.11 to the Company's Annual Report on Form
              10-K for the year ended December 31, 1996 (File No.0-21330)).
              

     (b)  Reports on Form 8-K:
 
          None.

     (c)  Exhibits:
 
          The response to this portion of Item 14 is included as a separate
          section of this Annual Report on Form 10-K.


                                       30

<PAGE>


 
     (d)  Financial Statement Schedules:
              The response to this portion of Item 14 is included as a 
              separate section of this Annual Report on Form 10-K.



                                       31

<PAGE>


                         REPORT OF INDEPENDENT ACCOUNTANTS
                          ON FINANCIAL STATEMENT SCHEDULE

To the Shareholders and Board of Directors of AVECOR Cardiovascular Inc.

          Our report on the consolidated financial statements of AVECOR 
Cardiovascular Inc. has been incorporated by reference in this Form 10-K from 
the 1997 Annual Report to Shareholders of AVECOR Cardiovascular Inc.  In 
connection with our audits of such financial statements, we have also audited 
the related financial statement schedule referred to in Item 14(a)(2) of this 
Form 10-K.

          In our opinion, the financial statement schedule referred to above, 
when considered in relation to the basic financial statements taken as a 
whole, presents fairly, in all material respects, the information required to 
be included therein.

                                       /s/ COOPERS & LYBRAND L.L.P.

                                       COOPERS & LYBRAND L.L.P.

Minneapolis, Minnesota
March 16, 1998



                                       32

<PAGE>


                              AVECOR CARDIOVASCULAR INC.

                   SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS
               
<TABLE>
<CAPTION>
        COLUMN A                   COLUMN B               COLUMN C          COLUMN D      COLUMN E
        --------                   ----------     ----------------------    --------      --------
                                   BALANCE AT     CHARGED TO     CHARGED                  BALANCE
                                   BEGINNING      COSTS AND      TO OTHER                  AT END
       DESCRIPTION                 OF PERIOD       EXPENSES      ACCOUNTS   DEDUCTIONS    OF PERIOD
       -----------                 ----------     ----------     --------   ----------    ---------
<S>                                <C>            <C>            <C>        <C>           <C>
Allowance for doubtful accounts
    deducted from accounts
    receivable:
For the year ended:
    December 31, 1997              $120,000        $240,000          -      $ 26,000(1)    $334,000
                                   --------        --------      ---------  --------       --------
                                   --------        --------      ---------  --------       --------

    December 31, 1996              $ 93,000        $104,000          -      $ 77,000(1)    $120,000
                                   --------        --------      ---------  --------       --------
                                   --------        --------      ---------  --------       --------

    December 31, 1995              $ 50,000        $ 43,000          -          -          $ 93,000
                                   --------        --------      ---------  --------       --------
                                   --------        --------      ---------  --------       --------

Valuation allowance deducted
    from inventories:
For the year ended:
    December 31, 1997              $100,000        $167,000           -     $140,000(2)    $127,000 
                                   --------        --------      ---------  --------       --------
                                   --------        --------      ---------  --------       --------

    December 31, 1996              $ 50,000        $ 50,000           -         -          $100,000 
                                   --------        --------      ---------  --------       --------
                                   --------        --------      ---------  --------       --------

    December 31, 1995              $100,000            -              -     $ 50,000(2)    $ 50,000
                                   --------        --------      ---------  --------       --------
                                   --------        --------      ---------  --------       --------
</TABLE>
(1)   Deductions from allowance resulting from write-off of bad debts.

(2)   Deductions from allowance resulting from disposal of inventories and other
      deductions to better estimate inventory reserve exposure.


                                       33

<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.

Dated:   March 27, 1998                AVECOR CARDIOVASCULAR INC.

                                       By /s/ ANTHONY BADOLATO
                                          ------------------------------------- 
                                          Anthony Badolato
                                          CHIEF EXECUTIVE OFFICER

          Pursuant to the requirements of the Securities Exchange Act of 
1934, this report has been signed below on March 27, 1998 by the following 
persons on behalf of the registrant and in the capacities indicated. 


<TABLE>
<CAPTION>

           SIGNATURE                    TITLE
           ---------                    -----
<S>                                     <C>


/s/ ANTHONY BADOLATO                    Director and Chief Executive Officer
- --------------------------------        (Principal Executive Officer) 
Anthony Badolato                        


/s/ GREGORY J. MELSEN                   Vice President -- Finance, Treasurer 
- --------------------------------        and Chief Financial Officer (Principal 
Gregory J. Melsen                       Financial and Accounting Officer)


/s/ EDWARD E. STRICKLAND              
- --------------------------------        Director
Edward E. Strickland


/s/ DAVID W. STASSEN
- --------------------------------         Director
David W. Stassen


/s/ J. GORDON WRIGHT    
- --------------------------------         Director
J. Gordon Wright
</TABLE>

                                       34


<PAGE>


                             AVECOR CARDIOVASCULAR INC.

                           EXHIBIT INDEX TO ANNUAL REPORT
                                    ON FORM 10-K
                    For the Fiscal Year Ended December 31, 1997
                                          
<TABLE>
<CAPTION>
ITEM NO.                                                       METHOD OF FILING
- --------                                                       ----------------
<S>                                                            <C>
3.1   Second Restated Articles of Incorporation of 
      the Company, as amended July 3, 1996 ..................  Incorporated by reference to Exhibit 3.1 to the 
                                                               Company's Quarterly Report on Form 10-Q for the 
                                                               quarter ended June 30, 1996 (File No. 0-21330).

3.2   Bylaws of the Company, as amended May 3, 1996 .........  Incorporated by reference to Exhibit 3.1 to the  
                                                               Company's Quarterly Report on Form 10-Q for the  
                                                               quarter ended March 31, 1996 (File No. 0-21330). 

4.1   Specimen form of the Company's Common 
      Stock Certificate ....................................   Incorporated by reference to Exhibit 4.1 to the      
                                                               Company's Quarterly Report on Form 10-Q for the      
                                                               quarter ended September 30, 1996 (File No. 0-21330). 

4.2   Second Restated Articles of Incorporation of 
      the Company, as amended July 3, 1996 .................   See Exhibit 3.1.

4.3   Bylaws of the Company, as amended May 3, 1996 ........   See Exhibit 3.2.

4.4   Certificate of Designation, Preferences and Rights 
      of the Company's Series A Junior Preferred Stock .....   Included in Exhibit 3.1

4.5   Rights Agreement dated June 26, 1996 between 
      the Company and Norwest Bank Minnesota, N.A., 
      which includes the form of Rights Certificate as 
      Exhibit B ............................................   Incorporated by reference to Exhibit 4.1 to the      
                                                               Company's Current Report on Form 8-K dated June 26,  
                                                               1996 (File No. 0-21330).

4.6   Amendment to Rights Agreement between the 
      Company and Norwest Bank Minnesota, N.A., dated 
      July 22, 1997 ........................................   Incorporated by reference to Exhibit 4.1 to the 
                                                               Company's Quarterly Report on Form 10-Q for the 
                                                               quarter ended June 30, 1997 (File No. 0-21330). 


                                      E-1

<PAGE>


10.1  1991 Stock Incentive Plan, as amended ................   Incorporated by reference to Exhibit 10.3 to the   
                                                               Company's Annual Report on Form 10-K for the year  
                                                               ended December 31, 1996 (File No. 0-21330).        

10.2  AVECOR Cardiovascular Inc. Employee Stock 
      Purchase Plan ........................................   Incorporated by reference to Exhibit 28.1 to the   
                                                               Company's Registration Statement on Form S-8 (File 
                                                               No. 33-55184).                                     

10.3  1995 Non-Employee Director 
      Option Plan ..........................................   Incorporated by reference to Exhibit 10.5 to the 
                                                               Company's Annual Report on Form 10-K for the year
                                                               ended December 31, 1996 (File No. 0-21330).      
 
10.4  Confidentiality Agreement dated November 13, 1991 
      between the Company and Anthony  Badolato..............  Incorporated by reference to Exhibit 10.7 to the      
                                                               Company's Registration Statement on Form S-1 (File    
                                                               No. 33-45731).                                        

10.5  Confidentiality Agreement dated November 13, 1991 
      between the Company and Allan Seck ....................  Incorporated by reference to Exhibit 10.10 to the 
                                                               Company's Registration Statement on Form S-1 (File
                                                               No. 33-45731).                                    

10.6  Form of Change in Control Agreement between the 
      Company and each of Anthony Badolato, Gregory J. 
      Melsen, Allan R. Seck and William S. Haworth...........  Incorporated by reference to Exhibit 10.10 to the 
                                                               Company's Annual Report on Form 10-K for the year 
                                                               ended December 31, 1996 (File No. 0-21330).       

10.7  Form of Confidentiality Agreement between 
      the Company and each of Gregory J. Melsen and 
      William S. Haworth ....................................  Incorporated by reference to Exhibit 10.11 to the 
                                                               Company's Annual Report on Form 10-K for the year 
                                                               ended December 31, 1996 (File No. 0-21330).       

10.8  Missives of Let dated October 4, 7 and 8, 1993 
      and Lease Agreement between AVECOR Cardiovascular, 
      Ltd. and Euromed Business Park Limited ................  Incorporated by reference to Exhibit 10.17 to the
                                                               Company's Annual Report on Form 10-K for the year
                                                               ended December 31, 1994 (File No. 0-21330).      


                                      E-2

<PAGE>


10.9   Settlement Agreement between Cobe Laboratories Inc. 
       and the Company dated June 30, 1996....................  Incorporated by reference to Exhibit 10.1 to the
                                                                Company's Quarterly Report on Form 10-Q for the 
                                                                quarter ended June 30, 1996 (File No. 0-21330). 

10.10  Cobe Patent License To Avecor between Cobe 
       Laboratories Inc. and the Company dated June 30, 1996..  Incorporated by reference to Exhibit 10.2 to the 
                                                                Company's Quarterly Report on Form 10-Q for the  
                                                                quarter ended June 30, 1996 (File No. 0-21330).  

10.11  Avecor Patent License To Cobe between Cobe 
       Laboratories Inc. and the Company dated June 30, 1996..  Incorporated by reference to Exhibit 10.3 to the
                                                                Company's Quarterly Report on Form 10-Q for the 
                                                                quarter ended June 30, 1996 (File No. 0-21330). 

10.12  Loan Agreement dated January 30, 1997 between the 
       Company and First Bank National Association............  Incorporated by reference to Exhibit 10.25 to the
                                                                Company's Annual Report on Form 10-K for the year
                                                                ended December 31, 1996 (File No. 0-21330).      
 
10.13  Note dated January 30, 1997 between the Company 
       and First Bank National Association....................  Incorporated by reference to Exhibit 10.26 to the
                                                                Company's Annual Report on Form 10-K for the year
                                                                ended December 31, 1996 (File No. 0-21330).      

10.14  Mortgage, Security Agreement, Assignment of Leases 
       and Rents and Fixture Financing Statement dated 
       January 30, 1997 between the Company and First Bank 
       National Association...................................  Incorporated by reference to Exhibit 10.27 to the
                                                                Company's Annual Report on Form 10-K for the year
                                                                ended December 31, 1996 (File No. 0-21330).      


                                       E-3


<PAGE>


10.15  Tax Increment Revenue Note dated February 1, 1997 
       issued to the Company by the Brooklyn Park Economic 
       Development Authority..................................  Incorporated by reference to Exhibit 10.27 to the
                                                                Company's Annual Report on Form 10-K for the year
                                                                ended December 31, 1996 (File No. 0-21330).      
 
10.16  Distribution Agreement dated April 2, 1997 between 
       the Company and Cardiovascular Diagnostics, Inc.......   Incorporated by reference to Exhibit 10.1 to the
                                                                Company's Quarterly Report on Form 10-Q for the 
                                                                quarter ended March 31, 1997 (File No.0-21330). 

10.17  License Agreement dated January 16, 1995 between 
       the Company and Michigan Critical Care Consultants, 
       Inc. including Amendment dated November 7, 1997........  Filed herewith electronically.*

13.1   Portions of the Company's 1997 Annual Report to 
       Shareholders incorporated herein by reference .........  Filed herewith electronically.

21.1   List of Subsidiaries of the Company ...................  Incorporated by reference to Exhibit 21.1 to the 
                                                                Company's Annual Report on Form 10-K for the year
                                                                ended December 31, 1995 (File No. 0-21330).      

23.1   Consent of Coopers & Lybrand L.L.P.....................  Filed herewith electronically.

27.1   Financial Data Schedule ...............................  Filed herewith electronically.
</TABLE>

* Portions of this exhibit have been omitted pursuant to a request for
  confidential treatment filed with the Securities and Exchange Commission.


                                      E-4


<PAGE>


                               LICENSE AGREEMENT

NOTE:  PORTIONS OF THIS EXHIBIT MARKED WITH "*'S" HAVE BEEN OMITTED PURSUANT TO
       A REQUEST FOR CONFIDENTIAL TREATMENT UNDER RULE 24b-2 OF THE 
       SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.  A COPY OF THIS EXHIBIT 
       IN ITS ENTIRETY HAS BEEN FILED SEPARATELY WITH THE SECURITIES AND 
       EXCHANGE COMMISSION.

     THIS AGREEMENT, entered into this 16th day of January, 1995, by and

between Michigan Critical Care Consultants, Inc., a Michigan corporation with

its principal place of business at 245 Jackson Industrial Drive, Suite J, Ann

Arbor, Michigan 48103 (hereinafter "MC3") and AVECOR Cardiovascular Inc., a

Minnesota corporation with its principal place of business at 13010 County Road

6, Plymouth, Minnesota 55441 (hereinafter "AVECOR").

     WHEREAS, the Regents of the University of Michigan, a constitutional

corporation of the State of Michigan (hereinafter "Michigan"), owns, controls

or has rights with respect to certain technology relating to the design of

passively filling blood pumps for use in connection with respiratory and/or

circulatory support;

     WHEREAS, MC3 and Michigan have entered into a license agreement dated as

of August 8, 1991 (hereinafter, the "Michigan License Agreement"), a copy of

which is attached hereto as Exhibit I, under which Michigan has granted MC3 an

exclusive license to such technology, including the right to sublicense such

technology;

     WHEREAS, MC3 has developed and owns certain technology which is or may be

useful in connection with AVECOR's manufacture, use, or sale of passively

filling blood pumps;

     WHEREAS, MC3 is willing to grant to AVECOR a license to the Michigan

technology and certain of MC3's technology, and AVECOR is willing to accept

such license upon and subject to the terms and conditions hereinafter set

forth;

     NOW, THEREFORE, in consideration of the premises and the mutual covenants

set forth below, the parties mutually agree as follows:

<PAGE>

                                    ARTICLE
                                       1.
                                  DEFINITIONS
                                  
     The parties agree that the following words, terms and phrases where

written with an initial capital letter shall, unless the context otherwise

indicates, have the following meanings for purposes of this Agreement:

     (a)  "Michigan Technology" shall mean Patents and Know-how licensed to MC3

under the Michigan License Agreement and relating to passively filling blood

pumps for use in connection with respiratory and/or circulatory support,

including specifically technology covered by U.S. Patents 5,222,880, 5,281,112

and 5,342,182 together with any reissues, continuations, extensions,

divisionals, foreign patents and patent applications based thereon and more

fully described in Michigan's Intellectual Property Office File Numbers 584 and

585.

     (b)  "MC3 Technology" shall mean Patents and Know-how developed, owned or

otherwise licensable by MC3 which are or may be useful in connection with the

manufacture, use or sale of passively filling blood pumps and more specifically

described in Exhibit II hereto, as such Exhibit may be amended form time to

time by the parties in writing.

     (c)  "Technology" shall mean the Michigan Technology and the MC3

Technology.

     (d)  "Product" shall mean that certain blood pump for use in connection

with respiratory and/or circulatory support (exclusive of applications relating

to pumping breathable liquids) and more specifically described in Exhibit III

attached hereto, including Improvements as defined below, and specifically

encompassing both Disposables and Hardware, as such terms are defined below.

     (e)  "Patents" shall mean all patents or applications therefor or

reissues, continuations or extensions thereof relating to Products and which

are owned, controlled, acquired or otherwise licensable by a party hereto

during the term of this Agreement, including specifically the Licensed Patents

as defined in the Michigan License Agreement.

     (f)  "Know-how" shall mean all trade secrets and non-patented information,

such as confidential information, inventions, intellectual property,

discoveries, improvements, modifications, and enhancements, techniques,

concepts, data, technical information and specifications (including

engineering, testing and manufacturing specifications), diagrams, 

                                       2

<PAGE>

schematics, charts and lists relating to Products or the Technology and 

owned, controlled, acquired or otherwise licensable by a party hereto during 

the term of this Agreement.

     (g)  "Improvements" shall mean Know-How or Patents relating to

modifications of or enhancements to Products developed by either party during

the term of this Agreement which serve to improve, correct, update, adjust or

change the design, performance characteristics, specifications or manufacturing

processes of Products.

     (h)  "Documentation" shall mean those elements of Know-how and other items

of relevant information which are in writing or other tangible form including,

without limitation, drawings, diagrams, blueprints, computer programs,

technical publications, manuals, designs and artwork which relate to the

manufacture, inspection, quality control, installation, maintenance, testing,

operation and/or repair of Products.

     (i)  "Subsidiary" shall mean any corporation more than fifty percent (50%)

of whose securities having ordinary voting power for the election of directors

are owned or controlled directly or indirectly by either party hereto.

     (j)  "Unit" shall mean any individual Disposable or Hardware unit.

     (k)  "Disposables" shall mean, with respect to Products, the disposable

pump chamber.

     (l)  "Hardware" shall mean, with respect to Products, the control console

together with the pump rotor, rollers, motor, chamber supports, tensioning

mechanism and related parts and equipment.

     (m)  "Net Sales Price" shall mean the price received by AVECOR or its

sublicensees from customers for the sale of Products only, expressly excluding

revenue derived from other value added products or treatments, and less

freight, duties, taxes, royalties paid to other licensors on treatment

technologies applied to Products, discounts, returns and refunds; provided,

such deductions are separately identified in customer invoices or specifically

documented in the books and records of AVECOR kept pursuant to Article 4.7

hereof and set forth in the reports provided by AVECOR to MC3 pursuant to

Article 4.6 hereof.  Provided however that when the Disposable Products are

packaged as a system and sold with other disposable medical devices and at a

discounted sales price, then the net sales price assignable to 

                                       3

<PAGE>

the Disposable Products shall be discounted at a rate not to exceed the 

discount rate applied to the other disposable medical devices included in the 

packaged system.

     (n)  "Effective Date" shall mean the date set forth on the first page of

this Agreement, being the date as of which the parties have duly executed this

Agreement.


                                    ARTICLE
                                      2.
                                LICENSE GRANTS

2.1   MC3'S  GRANT.  MC3 hereby grants to AVECOR, subject to all the  terms  of

this  Agreement, an exclusive, non-transferable, royalty-bearing and  worldwide

right  and  license  under Technology, Patents and Know-how owned,  controlled,

acquired  or  otherwise licensable by MC3 during the term of this Agreement  to

make,  have  made,  use,  lease, sell or otherwise  transfer  the  Products  in

connection  with  respiratory and/or circulatory support applications,  subject

to:


          (a)  those rights reserved to Michigan, the United States Government

     and/or third parties under Articles 3.3 and 3.4 of the Michigan License

     Agreement;
          
          (b)  the right of MC3 to utilize the Technology in connection with

     applications relating to breathable fluids or to make, have made, use,

     lease and sell products relating to breathable fluids;

          (c)  the right of MC3 to utilize the Technology in connection with

     applications other than respiratory and/or circulatory support and to

     make, have made, use, lease and sell products other than products in

     connection with respiratory and/or circulatory support applications; and
          
          (d)  the right of MC3 to utilize the Technology in connection with

     its continued internal research, development and testing of the Products.
          
          
2.2   AVECOR'S GRANT.  In the event AVECOR develops any Improvements to the

Technology or Products during the term of this Agreement, AVECOR shall and

hereby does grant to MC3, subject to all the terms of this Agreement, a non-

exclusive, non-transferable, and worldwide right and license under Patents and

Know-how owned, controlled, acquired or 

                                       4

<PAGE>

otherwise licensable by AVECOR during the term of this Agreement to make, 

have made, use, lease, sell or otherwise transfer the Products incorporating 

any or all such Improvements for all purposes (including specifically for 

applications to breathable fluids) other than in connection with respiratory 

and/or circulatory support applications. The license granted by AVECOR under 

this Article 2.2 shall include the right to grant sublicenses to third 

parties; provided, that AVECOR shall receive the benefit of any Improvements 

developed by MC3's sublicensees with respect to Products, and AVECOR shall 

further receive a proportionate and commercially reasonable royalty to be 

mutually agreed upon by MC3 and AVECOR payable out of royalties received by 

MC3 from its sublicensees related to such Improvements.


2.3  SUBLICENSES.  AVECOR shall not grant sublicenses under rights obtained

hereunder from MC3 without the prior written consent of both MC3 and Michigan;

provided, that MC3 hereby agrees that AVECOR may grant sublicenses under rights

received pursuant to Article 2.1 above to any of its Subsidiaries for so long

as they shall remain Subsidiaries of AVECOR, and AVECOR shall be entitled to

sublicense third party contractors for the limited purpose of manufacturing

parts and components of Products for sale by AVECOR, provided such third party

contractors agree in writing to maintain the confidentiality of MC3's Know-how

in accordance with the terms of Article 5 hereof and to promptly return all

Documentation provided to them upon termination of their contracts with AVECOR.


2.4  SCOPE OF GRANT.  No license is granted by either party to the other,

either directly or by implication, estoppel or otherwise, under any Patents or

Know-how other than specifically granted in Articles 2.1, 2.2 and 2.3 above.

Nothing herein shall require either party to disclose to the other proprietary

or confidential information received by such party from third parties which

confidential information such party is precluded from disclosing to others.  No

right, license or privilege is granted hereunder by either party to the other

to use such party's names, logos, trademarks or service marks, whether

registered or not.

                                    ARTICLE
                                      3.
                      KNOW-HOW AND DOCUMENTATION TRANSFER

                                       5

<PAGE>

3.1  INITIAL DOCUMENTATION. Within thirty (30) days of the written request by

AVECOR, MC3 shall provide AVECOR with all Documentation within the scope of the

license grant contained in Article 2.1 above in reproducible form.


3.2  SUBSEQUENT DOCUMENTATION.  In addition to the Documentation to be

delivered pursuant to Article 3.1 above and within a reasonable time after it

becomes available, each party shall deliver to the other party all

Documentation within the scope of the license grants contained in Articles 2.1

and 2.2 above relating to Improvements to the Products developed by the

delivering party during the term of this Agreement.  Such Documentation shall

likewise be in reproducible form.


3.3  STANDARDS OF MEASUREMENT.  All Documentation provided by one party to the

other in accordance with this Agreement shall be in the English language and

shall conform to the standards of measurement then in use by the party

delivering the Documentation.


3.4  TECHNICAL ASSISTANCE.  In partial consideration for the technical

assistance and license fee set forth in Article 4.1 below and at the request of

AVECOR, MC3 shall provide AVECOR at AVECOR's facilities with up to  eighty (80)

hours of technical assistance through salaried employees of MC3 during a period

of twelve (12) months from the date of this Agreement.  All travel time of such

MC3 employees to and from AVECOR's facilities shall count against the above

eighty (80) hours of technical assistance.  All requests for such technical

assistance by AVECOR at its facilities must require no less than six (6) hours

of scheduled services per request.  Thereafter, each party shall provide the

other party with a reasonable amount of technical assistance as requested by

the other party in order to enable such other party to reduce to practical

application Know-how transferred to it hereunder.  The party receiving such

technical assistance shall pay the party providing assistance at the providing

party's then current rates for such services billed in one-half hour

increments, plus reasonable travel and living expenses actually incurred in the

course of providing such technical assistance.  The party receiving technical

assistance shall have the right to approve the individual or individuals

providing such technical assistance prior to the initial rendering of such

services.

                                       6

<PAGE>

3.5  GOVERNMENT LICENSES AND APPROVALS.  MC3 shall assist AVECOR in obtaining

any governmental licenses or approvals which may be required for the

manufacture, use and/or sale of the Products as contemplated by this Agreement.

All such assistance provided by MC3 shall count against the eighty (80) hours

of technical assistance to be provided by MC3 under Article 3.4 above.  MC3

acknowledges and agrees that AVECOR shall have the right to make all filings

and obtain all licenses and approvals in AVECOR's name from the Food and Drug

Administration (the "FDA") under the Federal Food, Drug and Cosmetic Act (the

"Act") and regulations promulgated thereunder, and all other U.S. and foreign

governmental determinations which are necessary to permit the commercial

distribution of the Products within the United States and abroad.  The cost of

obtaining any requisite U.S. or foreign governmental approvals, licenses or

permits shall be borne by AVECOR.


                                    ARTICLE
                                       4.
                                 CONSIDERATION

4.1  TECHNICAL ASSISTANCE AND LICENSE FEE. In consideration for the

Documentation delivered under Article 3.1 above, AVECOR shall pay to MC3 a

technical assistance and license fee of ********************************.  Such

fee shall be payable by certified or cashier's check in two (2) equal

installments.  One-half of such fee shall be due within ten (10) days of the

execution of this Agreement, and one-half shall be due upon submission by

AVECOR to the FDA of a request for approval under Section 510(K) of the Act and

the regulations thereunder.


4.2  ROYALTIES.  In consideration for the rights and licenses granted to AVECOR

by MC3 under Article 2.1 hereof, AVECOR shall pay to MC3 royalties as follows:


          (a)  ****************************************************************

     **************************************************************************

     **************************************************************************

     **************************************************************************

     **************************************************************************

     **************************************************************************

                                       7

<PAGE>

     **************************************************************************

     ******************************************.
     
          (b)  ****************************************************************

     **************************************************************************

     ******************************************.
     

4.3  MINIMUM ROYALTIES.  AVECOR agrees to pay to MC3 a minimum annual royalty

as set forth below.  AVECOR's obligation to pay minimum annual royalties shall

commence when AVECOR receives FDA approval with respect to a submission by

AVECOR under Section 510(K) of the Act for U.S. marketing clearance of a

Product developed under the Technology.  Annual minimum royalties for each year

commencing with FDA approval under this Article 4.3 shall be as follows:


               *****                                    ********

               *****                                    ********

               *****                                    ********

               *****                                    ********
     
     
     In the event AVECOR exercises its option pursuant to Article 9.1 to extend

     the term of this Agreement in accordance with such Article 9.1, the

     minimum annual royalty for the ********************** during the term of

     this Agreement shall be **************************************************

     **************************************************************************

     ***************.
     
     
4.4  PAYMENTS.  Royalties on Disposables shall become due and payable upon the

delivery of the Disposables by AVECOR or its sublicensees to the customer, and

AVECOR shall pay all such royalties due and payable to MC3 within thirty (30)

days of the close of the calendar quarter during the term of this Agreement in

which the Products are delivered.  Royalties on Hardware shall become due and

payable from and after the first calendar year in which AVECOR realizes 

                                       8

<PAGE>

a net profit from the sale of Hardware.  Such royalties shall be due and 

payable within sixty (60) days after the close of such year and every 

calendar year thereafter during the term of this agreement in which AVECOR 

realizes a net profit on the sale of Hardware during such year.  All payments 

for technical assistance provided by one party to the other pursuant to 

Article 3.4 hereof shall be payable within thirty (30) days of the date of 

the providing party's invoice therefor.  All payments shall be made by bank 

transfer to the bank or banks designated in writing by MC3 or AVECOR as 

applicable from time to time during the term of this Agreement.  All payments 

shall be made in United States dollars.  All amounts not paid when due and 

payable hereunder shall bear interest from the date such amounts are due and 

payable at a rate of two (2) points above the prime lending rate as 

established by the Chase Manhattan Bank, N.A. in New York City, New York, or 

at such lower rate as may be required by law.  Any royalties due hereunder 

based on sales in currencies other than United States dollars shall be 

determined by converting such foreign currencies into their equivalent in 

United States dollars at the exchange rate of such currency as reported in 

the WALL STREET JOURNAL on the last business day of the quarter during which

such payments accrue.


4.5  TAXES.  Except as provided in the definition of Net Sales Price, all fees

and royalty payments due to MC3 under Articles 4.1, 4.2 and 4.3 above shall be

without deduction for sales, use, excise, personal property or other similar

taxes or other duties imposed on such payments by the government of any country

or any political subdivision thereof and any and all such taxes shall be

assumed by and paid by AVECOR.


4.6  REPORTS.  No later than forty-five (45) days after the close of each

calendar quarter during each year of this Agreement, AVECOR shall provide MC3

with a report relating to the prior calendar quarter setting forth the gross

sales and total Net Sales Price of Products sold, the number of Units shipped,

the amounts payable as royalties for the calendar quarter just ended, and the

various calculations used to arrive at all such amounts, including the

quantity, description (nomenclature and type designation), country of

manufacture and, to the extent reasonably available, country of sale of

Products.  In case no royalties are due for any calendar quarter, AVECOR shall

so report.  The reports provided for hereunder shall be certified by an

                                       9

<PAGE>

authorized representative of AVECOR to be correct to the best of AVECOR's

knowledge and information.


4.7  BOOKS AND RECORDS.  AVECOR shall keep at its expense full and accurate

books and records as may be necessary for the purpose of determining the

amounts of royalties payable to MC3 pursuant to Articles 4.2 and 4.3 above.

AVECOR shall make such books and records available to MC3 or its accountants or

other representatives upon written request by MC3 during normal business hours

throughout the term of this Agreement and for a period of six (6) years after

the date of origination of any such books or records for the limited purpose of

verifying AVECOR's payments of royalties.  The rights and obligations of this

Article 4.7 shall survive termination of this Agreement.


4.8  BEST EFFORTS OBLIGATION.  During the term of this Agreement, AVECOR agrees

to use its best efforts to develop, test, manufacture, market, sell and

technically support the Products and further agrees to use its best efforts to

obtain all necessary approvals from the FDA and all other governmental agencies

whose approval is necessary to manufacture, market or sell the Products.

AVECOR agrees that its best efforts shall include, at a minimum, the obligation

to use at least the same level of effort in connection with the Products as it

uses in connection with its other products.  In the event of an assignment by

AVECOR of this Agreement pursuant to Article 11.2(i) hereof to any successor in

interest to the business of AVECOR, in addition to the requirements of Article

11.2 with respect to minimum royalties, AVECOR agrees to secure, as a condition

of such assignment, that the assignee shall expressly agree in writing to the

fulfillment of the terms of this Article 4.8.


                                    ARTICLE
                                       5.
                                CONFIDENTIALITY

5.1  PROTECTION OF KNOW-HOW.  Each party shall, and shall require its

employees, agents and sublicensees to, protect all Know-how, and other

proprietary information, delivered or disclosed to it pursuant to this

Agreement against unauthorized disclosure to third parties during the term of

this Agreement and for three (3) years thereafter by maintaining all such Know-

how in confidence with at least the same degree of care as it uses to maintain

the confidentiality of its 

                                       10

<PAGE>

own information of a confidential nature.  Each party shall not divulge and 

shall cause its employees, agents and sublicensees not to divulge, in whole 

or in part, such Know-how to any third party or to any of its own personnel 

not having a need to know during the term of this Agreement and for a period 

of three (3) years thereafter; provided, that neither party shall be liable 

for the use or disclosure of Know-how which:


          (a)  was in the possession of the receiving party prior to its

     receipt from the disclosing party;
     
     
          (b)  is or becomes part of the public knowledge or literature through

     no fault of the receiving party;
     
     
          (c)  is or becomes available to the receiving party from a source

     other than the disclosing party and having no obligation to the disclosing

     party in respect thereof; or
     
     
          (d)  is made available by the disclosing party to a third party

     unaffiliated with the disclosing party on an unrestricted basis.
     
     
5.2  SURVIVING OBLIGATION.  The obligation of each party to protect against the

unauthorized use or disclosure of Know-how or other proprietary information

shall survive any termination of this Agreement.


5.3  MARKETING DISCLOSURES.  Notwithstanding Article 5.1 above, AVECOR shall be

entitled to make such limited and reasonable disclosures of information

concerning the Products as are customary and necessary to market the Products

to its customers.


                                    ARTICLE
                                       6.
                            WARRANTY AND LIABILITY

6.1  WARRANTY.  Each party warrants and represents that it has the legal power

to extend and receive the rights granted hereunder with respect to its Patents

and Know-how.  EXCEPT AS PROVIDED ABOVE, MC3, INCLUDING ITS OFFICERS AND

EMPLOYEES, MAKES NO REPRESENTATIONS AND EXTENDS NO WARRANTIES OF ANY KIND,

EITHER 

                                       11

<PAGE>

EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF 

MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, AND ASSUMES NO 

RESPONSIBILITIES WHATEVER WITH RESPECT TO THE DESIGN, DEVELOPMENT, 

MANUFACTURE, USE, SALE OR OTHER DISPOSITION BY AVECOR OR ITS SUBLICENSEES OF 

THE PRODUCTS.


6.2  QUALITY CONTROL.  AVECOR warrants and covenants that it will follow the

same quality control standards which AVECOR has adopted or shall in the future

adopt for itself, provided they are reasonably required to maintain Product

quality.


6.3  AVECOR'S INDEMNITY.  AVECOR hereby agrees to indemnify and hold harmless

MC3 and Michigan, and their respective officers, employees and agents, from and

against any claim, demand, liability, damages, loss or costs arising out of any

claims of third parties against MC3 or Michigan which arise out of the

manufacture, sale, use or operation of any Products sold or otherwise

transferred by AVECOR, or the use by AVECOR of any invention related to the

Technology.  MC3 or Michigan, as appropriate, shall promptly notify AVECOR in

writing of any such claim and shall permit AVECOR through its counsel to defend

the same and shall give AVECOR all available information, assistance and

authority (at AVECOR's expense) to assume such defense.  AVECOR shall have

control of the defense of any such claim, including appeals from any judgment

and any negotiations for settlement or compromise of such claim with full

authority to enter into a binding settlement or compromise.  MC3 shall be

entitled to participate at its option and expense through counsel of its own

selection, and may join in any legal actions related to any such claims,

demands, damages, losses and expenses.


6.4  INDIRECT OR CONSEQUENTIAL DAMAGES.  THE ENTIRE RISK AS TO PERFORMANCE OF

THE PRODUCTS IS ASSUMED BY AVECOR AND ITS SUBLICENSEES.  In no event shall MC3,

including its officers and employees, be responsible or liable for any

indirect, special, incidental, or consequential damages or lost profits of

AVECOR or its sublicensees, users or any other individual or entity regardless

or legal theory.  The above limitations on liability apply even though MC3, its

officers or employees may have been advised of the possibility thereof.

                                       12

<PAGE>

6.5  PRODUCT LIABILITY INSURANCE.  AVECOR shall purchase and maintain in effect

during the term of this Agreement a policy of product liability insurance which

adequately covers claims that may reasonably arise with respect to any Products

manufactured, sold, licensed or otherwise distributed by AVECOR and which

specifies MC3 and Michigan, including their officers and employees, as

additional insured parties.


6.6  NO REPRESENTATIONS.  AVECOR shall not, and shall require that its

sublicensees do not, make any statements, representations or warranties or

accept any liabilities or responsibilities whatsoever to or with regard to any

person or entity which are inconsistent with any disclaimer or limitation

included in this Article 6, except for normal and customary warranties with

respect to the Products for which AVECOR and its sublicensees will be fully and

solely liable.


6.7  MICHIGAN DISCLAIMERS.  AVECOR acknowledges the terms of Article 12,

Disclaimer of Warranty and Limitations on Liability, contained in the Michigan

License Agreement and expressly agrees to the disclaimers of warranty made

therein by Michigan, to the limitations on liability set forth therein for the

benefit of Michigan and that the risk of performance of the Products

manufactured by AVECOR hereunder rests solely with AVECOR and not with MC3, all

as more specifically set forth in such Article 12.


                                    ARTICLE
                                       7.
                         INTELLECTUAL PROPERTY RIGHTS

7.1  NO WARRANTY.  Neither party, including its respective officers and

employees, makes any representations or warranties that any Patent is or will

be held valid, or that the manufacture, use, sale or other distribution of any

Products will not infringe upon any patent or other rights not vested in either

party.


7.2  PATENT PROSECUTION, MAINTENANCE.  Each party shall control all aspects of

filing, prosecuting, and maintaining its Patents, including foreign filings and

Patent Cooperation Treaty filings.  Each Party shall notify the other party of

all information received by it relating to the filing, prosecution and

maintenance of Patents, including any lapse, revocation, surrender,

invalidation or abandonment of any of its Patents.  AVECOR shall, at its own

expense, perform all actions 

                                       13

<PAGE>

and execute or cause to be executed all documents necessary to support such 

filing, prosecution, or maintenance of both the MC3 and AVECOR Patents..


7.3  SUBSTITUTION RIGHTS.  Either party may in its sole discretion decide to

refrain from or to cease prosecuting or maintaining any of its Patents,

including any foreign filing or any Patent Cooperation Treaty filing.  In the

event that a party makes such decision with respect to a U.S. patent or patent

application, or with respect to a foreign filing or Patent Cooperation Treaty

filing which has been requested in writing by the other party, such party shall

notify the other party promptly and in sufficient time to permit the other

party at its sole discretion to continue such prosecution or maintenance at the

other party's expense.  If the other party elects to continue such prosecution

or maintenance, the party who has elected to cease prosecuting or maintaining

the Patent shall execute such documents and perform such acts at the other

party's expense as may be reasonably necessary for the other party to so

continue such prosecution or maintenance.


                                    ARTICLE
                                       8.
                             ADDITIONAL COVENANTS

8.1  COMPLIANCE WITH LAWS.  AVECOR shall comply with all provisions of any

applicable laws, regulations, rules and orders relating to the licenses granted

hereunder and to the testing, production, transportation, export, packaging,

labeling, sale or use of Products, or otherwise applicable to AVECOR's

activities hereunder.  AVECOR shall obtain such written assurances regarding

export and re-export of technical data contained in the Technology as may be

required by U.S. Office of Export Administration regulations, and AVECOR hereby

gives such written assurances to MC3 as may be required under those

regulations.


8.2  PUBLICITY.  AVECOR agrees to refrain from using the name of Michigan in

publicity or advertising without the prior written approval of Michigan's

Director of the Intellectual Properties Office.  Reports in scientific

literature and presentations of joint research and development work are not

considered publicity.

                                       14

<PAGE>

8.3  PRODUCT MARKING.  AVECOR agrees to mark Products with appropriate patent

notices if and when applicable, as approved by MC3, which approval will not be

unreasonably withheld.


8.4  MANUFACTURE IN THE UNITED STATES.  AVECOR agrees to substantially

manufacture all Products in the United States.


8.5  GOVERNMENT APPROVALS.  It is understood that AVECOR has the responsibility

to do all that is reasonably necessary to obtain any governmental approvals to

manufacture and/or sell the Products.


8.6  REGISTRATION OR RECORDATION.  If the terms of this Agreement, or any

assignment or license under this Agreement, are or become such as to require

that this Agreement or license or any part hereof be registered with or

reported to a national or supranational agency in any country or area in which

AVECOR or its sublicensees do business, AVECOR will, at its expense, undertake

such registration or report.  Prompt notice and appropriate verification of the

act of registration or report of any agency ruling resulting from such filing

or notice will be supplied by AVECOR to MC3.  Any formal recordation of this

Agreement or any license herein granted which is required by the law of any

country as a prerequisite to enforceability of this Agreement or license in the

courts of any such country or for any other reason shall also be carried out by

AVECOR at its expense, and appropriately verified proof of recordation shall be

promptly furnished to MC3.


                                    ARTICLE
                                       9.
                                  TERMINATION

9.1  TERM.  This Agreement shall enter into force upon the date first above

written and shall continue in force for an initial term of five (5) years from

the date on which AVECOR receives approval from the FDA with respect to the

submission of a request for the Products under Section 510(K) of the Act and

its regulations.  Upon the expiration of such initial term, AVECOR may, at its

sole option, upon written notice to MC3, extend the term of this Agreement

until the expiration of the last to expire of the Patents then covered by this

Agreement or the useful life of the Know-how licensed hereunder, whichever is

longer.

                                       15

<PAGE>

9.2  TERMINATION.  Notwithstanding the provisions of Article 9.1 above, this

Agreement may be terminated in accordance with the following provisions:

          (a)  By either party immediately upon written notice in the event:
     
     
                    (i)  the other party is adjudicated bankrupt, files for

          bankruptcy, goes into liquidation, makes an assignment for the

          benefit of creditors or otherwise loses control of its business; or
          
          
                    (ii) the other party breaches any material term, condition

          or obligation of this Agreement and fails to cure such breach within

          sixty (60) days of receiving written notice thereof from the non-

          breaching party.
          
          
          (b)  By AVECOR immediately upon written notice in the event that any

     of the Technology is adjudicated by a court of competent jurisdiction to

     be invalid and such adjudication is final and unappealable; provided that

     such Technology is material to the Products and provided further that, in

     the event such Technology is adjudicated invalid by a lower court and MC3

     appeals from such judgment, MC3 shall indemnify and hold harmless AVECOR

     from and against all costs, damages and liabilities incurred by AVECOR and

     arising out of the continued use of the Technology and the manufacture,

     use, sale and/or lease of Products between the date of the judgment of the

     lower court and the final, unappealable adjudication referred to above.
     
     
          (c)  By the party whose performance is not prevented by an event of

     Force Majeure on written notice to the other party should an event of

     Force Majeure continue for more than six (6) months as provided in Article

     10.3 below.
     
     
          (d)  Automatically upon the expiration of sixty (60) days after the

     termination of the Michigan License Agreement, subject to AVECOR's rights

     pursuant to Article 9.3(e) below.
     
     
9.3  CONSEQUENCES OF TERMINATION. The rights and obligations of the parties in

the event of termination shall be as follows:

                                       16

<PAGE>

          (a)   event of termination by either party under Article 9.2(a)(i)

     above, all licenses granted hereunder shall continue and all obligations

     of AVECOR to make payments hereunder in accordance with the terms of this

     Agreement shall likewise continue.  In addition, in the event of the

     commencement of an insolvency or bankruptcy proceeding or reorganization

     involving MC3 or if MC3 makes an assignment for the benefit of creditors,

     AVECOR shall be entitled to complete access to all Patents, Know-how and

     Documentation of MC3 and all embodiments thereof and any Documentation or

     Know-how not in AVECOR's possession will promptly be delivered to AVECOR

     upon AVECOR's request.  In the event of the commencement of an insolvency

     or bankruptcy proceeding or reorganization involving AVECOR, MC3 shall

     have all of the remedies available to it at law in the event AVECOR is

     unable to carry out its obligations under this Agreement.  The

     representations, warranties and covenants set forth in this Article 9.3(a)

     shall survive the execution, delivery, termination or expiration of this

     Agreement.
     
     
          (b)  In the event of termination of this Agreement by MC3 under

     Article 9.2(a)(ii) or Article 9.2(c) above, the license granted by MC3 to

     AVECOR pursuant to Article 2.1 hereof shall terminate.   AVECOR shall

     cease using all Technology licensed to it hereunder by MC3 for any

     purpose, including specifically the manufacture and sale of Products, and

     shall return to MC3 all Documentation transferred to AVECOR and shall

     destroy all other copies of such Documentation; provided, however, that

     AVECOR shall not be so obligated to the extent that such Documentation and

     Know-how pertains to the maintenance or repair of Products for which

     royalties have been paid and which AVECOR normally provides to its

     customers in the ordinary course of business for the purpose of permitting

     adequate technical support of the Products.  In the event of such

     termination, the license granted to MC3 by AVECOR pursuant to Article 2.2

     hereof shall survive termination of this Agreement and continue in full

     force and effect.
     
     
          (c)  In the event of termination of this Agreement by AVECOR under

     Article 9.2(a)(ii) above and in the event AVECOR secures a judgment of a

     court of competent jurisdiction which judgment is final and unappealable

     and which holds that MC3 is in material breach of this Agreement, the

     license granted by MC3 to AVECOR pursuant to

                                       17

<PAGE>

     Article 2.1 hereof shall continue for a period of five years from the 

     date such final judgment is issued; provided, that, in such case, AVECOR 

     shall have no further obligation to pay royalties to MC3 pursuant to 

     Articles 4.2 and 4.3 hereof.  Further, in the event of such termination, 

     the license granted by AVECOR to MC3 pursuant to Article 2.2 hereof 

     shall terminate forthwith, and MC3 shall cease using any AVECOR Patents 

     and Know-How relating to improvements for any purpose.  Additionally, 

     notwithstanding anything else in this section, termination by AVECOR 

     does not affect any sublicenses of AVECOR technology that may have been 

     lawfully granted by MC3.  MC3 shall promptly return all Documentation 

     provided to it by AVECOR, and shall destroy all copies of such 

     Documentation.  Notwithstanding the termination of this Agreement by 

     AVECOR pursuant to Article 9.2(a)(ii) above, until such time as AVECOR 

     shall have secured the final and unappealable judgment referred to 

     above, the license grants contained in Articles 2.1 and 2.2 hereof shall 

     continue and AVECOR shall be obligated to continue paying royalties to 

     MC3 pursuant to Articles 4.2 and 4.3 hereof and to otherwise observe and 

     comply with its obligations contained herein.

     
     
          (d)  In the event of termination of this Agreement by AVECOR pursuant

     to Article 9.2(b) above, all licenses granted hereunder shall terminate

     forthwith, and each party shall cease using any of the other party's

     Patents and Know-How for any purpose.  Each party shall promptly return to

     the other party all Documentation provided to it by the other party, and

     shall destroy all copies of such Documentation.
     
     
          (e)  In the event of the termination of this Agreement pursuant to

     Article 9.2(d) above, MC3 shall be obligated to immediately notify AVECOR

     in writing of the termination of the Michigan License Agreement.  Within

     sixty (60) days of receipt of such notice of termination of the Michigan

     License Agreement, AVECOR may by written notice to Michigan elect to

     continue in force this Agreement on and subject to the terms and

     conditions set forth herein and, for all purposes of this Agreement,

     Michigan shall be substituted for MC3 and shall assume all obligations and

     acquire all rights of MC3 hereunder.
     
                                       18

<PAGE>

                                    ARTICLE
                                      10.
                                 FORCE MAJEURE

10.1 DEFINITION AND NOTICE.  Force Majeure shall mean any event, not existing

as of the date of this Agreement and not reasonably foreseeable or within the

control of the parties as of such date, which prevents in whole or part the

performance by one of the parties of its obligations hereunder, including,

without limitation the following: acts of State or governmental action,

(including, without limitation, failure to grant any license or approval

required for performance hereunder), crisis, war, strikes, natural catastrophe,

and prolonged shortage of energy supplies. Any party affected by an event of

Force Majeure shall promptly provide the other party with written notice

describing such event, its cause and possible consequences.  Upon giving such

notice, the party whose performance is prevented by the event of Force Majeure

shall be relieved of any liability hereunder, except for the obligation to pay

amounts due and owing, but only to the extent and only for so long as its

performance is prevented by the event of Force Majeure.


10.2 SUSPENSION OF PERFORMANCE.  During the period the performance of one of

the parties has been suspended by reason of Force Majeure, the other party may

likewise suspend performance of all or part of its obligations, except for the

obligation to pay amounts due and owing, to the extent commercially reasonable.


10.3 TERMINATION.  If the event of Force Majeure preventing performance shall

continue for more than six (6) consecutive months, the party whose performance

is not prevented by such event of Force Majeure may terminate this Agreement on

written notice to the other party without any liability hereunder, except the

obligation to make payments due to such date.


                                    ARTICLE
                                      11.
                              GENERAL PROVISIONS

11.1 COMPLETE AGREEMENT.  This Agreement, including the Recitals and the

Exhibits attached hereto, constitutes the complete agreement of the parties

with respect to the subject matter hereof and there are no representations,

agreements, or conditions not expressly set forth herein.

                                       19

<PAGE>

11.2 ASSIGNMENT.  This Agreement may not be assigned by either party without

the prior written consent of the other party and, in the absence of such

consent, any attempted assignment will be null and void; provided, however,

that (i) subject to the terms set forth below in this Article 11.2, either

party may assign its rights and obligations under this Agreement to any

successor in interest of all or substantially all of the business of such party

by merger, purchase or operation of law; and (ii) MC3 may assign its rights and

obligations hereunder to Michigan.  In the event of an assignment by AVECOR

pursuant to Article 11.2(i) above to any successor in interest to the business

of AVECOR, whether by way of merger, purchase or operation of law, the minimum

annual royalty payable by AVECOR under Article 4.3 hereof shall, for the three

(3) years immediately following the year of such assignment, be an amount equal

to the minimum royalty otherwise provided for each of such three (3) years

pursuant to Article 4.3  or the amount of royalties actually paid by AVECOR

under Article 4.2 in the complete calendar year immediately prior to such

assignment, whichever is greater.  All terms and conditions of this Agreement

will be binding on and inure to the benefit of the successors and permitted

assigns of the parties.


11.3 GOVERNING LAW.  This Agreement shall be governed by and construed in

accordance with the laws of the State of Michigan.


11.4 AMENDMENT.  Any change, extension, revision, or waiver of or under this

Agreement will be valid and binding only if in writing and duly executed by the

party agreeing to be bound thereby.


11.5 SECRECY.  The parties hereto expressly agree that the financial terms of

this Agreement are strictly confidential.  Each party shall, and shall cause

its employees, agents and sublicensees to, maintain in absolute secrecy the

financial terms of this Agreement, and shall not disclose any of such

information to any third party or to any of its own personnel not having a need

to know without the prior written authorization of the other party; provided,

that neither party shall be liable for the disclosure of the above information

to the extent such disclosure is required to comply with any state or federal

securities laws.

                                       20

<PAGE>

11.6 INVALIDITY.  In the event that any term, provision, or covenant of this

Agreement shall be determined by a court of competent jurisdiction to be

invalid, illegal, or unenforceable, that term will be curtailed, limited, or

deleted, but only to the extent necessary to remove such invalidity,

illegality, or unenforceability, and the remaining terms, provisions, and

covenants shall not in any way be affected or impaired thereby.  In the event

that the time period of any covenant shall be held unenforceable as a matter of

law, said covenant will be interpreted to be effective for an enforceable time

period.


11.7 NOTICES.  Any notice, demand, or request given to, made, or required to be

made hereunder shall be deemed sufficiently made if given in writing, and sent

by registered mail, return receipt requested, to the parties at the following

addresses:

     If to AVECOR:  AVECOR Cardiovascular, Inc.
                         13010 County Road 6
                         Plymouth, MN  55441

                         Attention:  Mr. Allan R. Seck

     If to MC3:     Michigan Critical Care Consultants, Inc.
                         245 Jackson Industrial Drive, Suite J
                         Ann Arbor, MI  48105

                         Attention:  Mr. Patrick Montoya

     or to such other addresses as the parties may from time to time specify by

     written notice in compliance with this Article 11.6.  Any such notice

     shall be deemed to have been served on the fifth (5th) day after the day

     on which the letter was posted.
     
     
11.8 AVECOR agrees that all terms of the Michigan License Agreement, attached

as Exhibit I, which, by their nature, apply to MC3 sublicensees, shall apply to

AVECOR, whether such terms are expressly restated in this Agreement.


11.9 INTERPRETATION.  AVECOR agrees that the terms of the Michigan License

Agreement, which by their nature apply to MC3 sublicensees, shall apply to

AVECOR, whether or not such terms are expressly restated in this Agreement.

                                       21

<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be

duly executed as of the date first above written.

Michigan Critical Care                  AVECOR Cardiovascular Inc.
Consultants, Inc. (MC3)                 (AVECOR)


By: /S/  Patrick Montoya                By: /S/ Norman C. McGibbon
   ----------------------------------       -----------------------------------
Its: President                          Its:Treasurer
   ----------------------------------       ----------------------------------

                                       22

<PAGE>

                                  EXHIBIT II
                                       
                                   PRODUCTS

                                       23

<PAGE>


                        AMENDMENT TO LICENSE AGREEMENT
                                       
     This Amendment to License Agreement (this "Amendment"), effective as of
November 7, 1997, is made by and between Michigan Critical Care Consultants,
Inc. ("MC3") and AVECOR Cardiovascular Inc. ("AVECOR").

            A. AVECOR and MC3 have entered into a License Agreement, dated as
of January 16, 1995 (the "License Agreement").

            B. Section 4.2(b) of the License Agreement requires AVECOR to pay
royalties to MC3 out of AVECOR's "net profit" for Hardware from and after the
first calendar year in which AVECOR generates a net profit on the sale of
Hardware.

            C. The term "net profit" is presently not defined in the License
Agreement and the parties wish to define such term for the purposes of Section
4.2(b) of the License Agreement.

     In consideration of the foregoing premises and intending to be legally
bound, AVECOR and MC3 agree as follows:


    1.       AMENDMENT OF SECTION 4.2(b).  Section 4.2(b) of the license 
agreement is amended by adding the following to the end of such section:

     For the purposes of this Section 4.2(b), the definition of "net profit"
     with respect to Hardware sold during a given period ("NET PROFIT") will be
     defined as the Net Sales Price of such Hardware, less its Cost, which is
     defined as the sum of the Material, Labor and Overhead used to produce the
     Hardware.  For this purpose:
     
          (i) "Material" is defined as the sum of the standard cost of the
          parts used to produce the Hardware, as determined by AVECOR's
          standard bill of materials for the Hardware (as the same may be
          changed from time to time) and accumulated by AVECOR's manufacturing
          software for the Hardware produced.
          
          (ii) "Labor" is defined as the sum of the standard cost of the direct
          labor hours used to produce the Hardware, as determined by AVECOR's
          standard parts' routings (as the same may be changed from time to
          time) and accumulated by AVECOR's manufacturing software for the
          Hardware produced.
          
          (iii) "Overhead" is defined as the sum of the actual manufacturing
          and quality expenses used to produce the Hardware, excluding Material
          and Labor, as currently assigned by AVECOR's monthly product costing
          system in the course of its normal financial reporting.  Subject to
          the foregoing sentence, "actual manufacturing and quality expenses"
          include department expenses, manufacturing labor variances, material
          purchase price variances, warranty expenses and other material
          adjustments, where "department expenses" include production supplies
          and other indirect expenses, production administration, 

<PAGE>

          warehousing, production engineering, quality administration, raw 
          material receiving inspection, sterilization, quality engineering, 
          product testing and other necessary departmental expenses as 
          required by AVECOR's quality processes.
          
     Provided, however, that all of the above calculations will be determined
     in accordance with Generally Accepted Accounting Principles at the time of
     calculation, applied on a consistent basis.  AVECOR's calculation of Cost
     and Net Profit will be included in each report required by Section 4.6
     below for each period in which royalties are due under Section 4.2(b).
     AVECOR will keep and maintain records of its calculations of Cost and Net
     Profit on Hardware pursuant to Section 4.7 below, and MC3 will have the
     right to inspect such records as provided in such Section.
     
    2.  DEFINED TERMS.  Unless otherwise defined herein, capitalized terms 
used in this Amendment will have the meanings given in the License Agreement.

    3.  EFFECTIVE DATE.  Notwithstanding the later execution of this 
Addendum, the parties hereby agree that this Addendum will be deemed to be 
effective as of the effective date of the License Agreement.

    4.  PRIORITY.  In the event of any conflict or inconsistency between the 
terms of this Amendment and the License Agreement, the terms of this 
Amendment will be controlling.

    5.  NO OTHER CHANGES.  Except as specifically amended by this Amendment, all
other provisions of the License Agreement remain in full force and effect.

     AVECOR and MC3 have caused this Amendment to be duly executed on their
behalf by their respective duly authorized representatives as of the date first
written above.

MICHIGAN CRITICAL CARE                         AVECOR CARDIOVASCULAR INC.
CONSULTANTS, INC. 

By:   /s/  Patrick Montoya                     By:  /s/  Gregory J. Melsen
   ----------------------------------------       ----------------------------
Its:  President                                Its: Treasurer
    ---------------------------------------        ---------------------------

                                       2


<PAGE>

AVECOR-TM-
CARDIOVASCULAR

ANNUAL REPORT 1997

<PAGE>

                               ABOUT THE COMPANY

    AVECOR Cardiovascular Inc. is a worldwide leader in the development,
  manufacture and marketing of specialty medical devices for heart/lung bypass
   surgery and long-term respiratory support. The Company's product line
     includes hollow fiber and silicone membrane oxygenators, a blood pump,
   blood reservoirs, cardioplegia systems, arterial filters, custom tubing packs
                      and blood monitoring devices.



                                 ON THE COVER

            AVECOR's revolutionary new blood pump is shown at the right
             in a typical perfusion set-up with the AFFINITY oxygenator
                 and hardshell cardiotomy reservoir at the left.



Except for the historical financial information contained herein, the matters 
discussed in this annual report contain certain forward-looking statements. 
For this purpose, any statements contained in this annual report that are not 
statements of historical fact may be deemed to be forward-looking statements. 
Without limiting the foregoing, words such as "may," "will," "expect," 
"believe," "anticipate," "estimate" or "continue," the negative or other 
variations thereof, or comparable terminology, are intended to identify 
forward-looking statements. These statements by their nature involve 
substantial risks and uncertainties, and actual results may differ materially 
depending on a variety of factors, including the progress of product 
development and clinical studies, the timing of and ability to obtain 
regulatory approvals, the extent to which the Company's products gain market 
acceptance, the introduction of competitive products by others, the pricing 
related to competitive products, litigation regarding patent and other 
intellectual property rights, the availability of third-party reimbursement 
and other factors, as well as those set forth from time to time in the 
Company's filings with the Securities and Exchange Commission, including the 
Company's Annual Report on Form 10-K for the year ended December 31, 1997.

MYOtherm-Registered Trademark- and OnCourse-Registered Trademark- are 
registered trademarks of the Company. Affinity-TM-, Signature-TM-, 
Trillium-TM-, Myotherm XP-TM-, Affinity XP-TM- and XP-TM- are trademarks of 
the Company. Windows-Registered Trademark- is a registered trademark of 
Microsoft Corporation.

<PAGE>
<TABLE>
<CAPTION>
FINANCIAL HIGHLIGHTS                                                                                 AVECOR CARDIOVASCULAR, INC.

                                                                       AVECOR CARDIOVASCULAR INC.
                                                                    FOR THE YEARS ENDED DECEMBER 31,
                                             ------------------------------------------------------------------------------------
                                               1997                1996               1995             1994               1993
- ---------------------------------------------------------------------------------------------------------------------------------
<S>                                          <C>                 <C>               <C>               <C>               <C>
OPERATING DATA:
   Net sales                                 $46,864,000         $44,401,000       $33,340,000       $21,486,000       $14,125,000
   Cost of sales                              27,574,000          25,986,000        18,180,000        12,556,000         9,067,000
                                             -------------------------------------------------------------------------------------
      Gross profit                            19,290,000          18,415,000        15,160,000         8,930,000         5,058,000
   Operating Expenses:
      Selling, general and administrative     13,428,000          11,885,000         8,727,000         6,779,000         5,044,000
      Litigation expense                              --           4,205,000           170,000                --                --
      Research and development                 3,902,000           3,651,000         2,773,000         2,309,000         1,891,000
                                             -------------------------------------------------------------------------------------
         Operating income (loss)               1,960,000          (1,326,000)        3,490,000          (158,000)       (1,877,000)
   Interest income                               495,000             725,000           586,000           143,000           204,000
   Interest expense                              383,000                  --                --                --                --
                                             -------------------------------------------------------------------------------------
   Income (loss) before income taxes           2,072,000            (601,000)        4,076,000           (15,000)       (1,673,000)
   Income tax provision (benefit)                745,000             (34,000)          780,000            24,000           (23,000)
                                             -------------------------------------------------------------------------------------
   Net income (loss)                         $ 1,327,000         $  (567,000)      $ 3,296,000       $   (39,000)      $(1,650,000)
                                             -------------------------------------------------------------------------------------
                                             -------------------------------------------------------------------------------------
   Diluted earnings (loss) per share         $       .17         $      (.07)      $       .45       $      (.01)      $      (.26)
                                             -------------------------------------------------------------------------------------
                                             -------------------------------------------------------------------------------------
   Weighted average common and common
      equivalent shares outstanding(1)         7,990,000           7,767,000         7,353,000         6,390,000         6,361,000
                                             -------------------------------------------------------------------------------------
                                             -------------------------------------------------------------------------------------

BALANCE SHEET DATA:
   Working capital                           $20,204,000         $20,563,000       $26,247,000       $10,150,000       $ 9,725,000
   Total assets                               42,759,000          37,161,000        33,519,000        15,877,000        15,031,000
   Long-term debt                              4,694,000                  --                --                --                --
   Shareholders' equity                       32,618,000          29,938,000        29,322,000        13,145,000        12,970,000
</TABLE>

(1) WEIGHTED AVERAGE COMMON AND COMMON EQUIVALENT SHARES OUTSTANDING ARE
CALCULATED ACCORDING TO THE DEFINITION OF "DILUTED EARNINGS PER SHARE" AS
DEFINED BY THE FINANCIAL ACCOUNTING STANDARDS BOARD (FASB) IN STATEMENT ON
FINANCIAL ACCOUNTING STANDARDS NO. 128, EARNINGS PER SHARE. ALL PERIODS
PRESENTED WERE PREPARED UNDER THIS NEW STANDARD FOR COMPUTING EARNINGS PER
SHARE.

                                      1
<PAGE>

  TO OUR SHAREHOLDERS:


            A little over six years ago, we set out to build a major medical
device company -- one that would be a leader in the cardiopulmonary market. Our
strategy emphasized the creation of innovative products that could be
manufactured cost-effectively. Building on the base of an aging $9 million
product line acquired from another manufacturer, we have launched a steady
stream of new products that have enabled AVECOR Cardiovascular to grow at a
compounded 35% annual rate over the last five years.

            A MARKET LEADER. Today, AVECOR Cardiovascular is a $47 million
company. After only three years on the market, our AFFINITY oxygenator has set
new records for rapid growth, achieving a 15% market share to rank third in
industry sales. Our arterial filter has a 10% market share after two years.

            THE TECHNOLOGY LEADER. The AFFINITY oxygenator is recognized as the
technology leader in its field and has become the standard against which new
products are judged. Our AFFINITY pump system provides patients, surgeons and
perfusionists with unprecedented safety and high performance. Products under
development will help us maintain our position on the leading edge of
technology.

            MANUFACTURING STRENGTH. Our state-of-the-art manufacturing facility
uses a completely paperless process for the documentation required by
regulators. Our products are designed for manufacturing ease, and we believe
that our manufacturing costs on leading product lines are the lowest in the
industry.

            STRONG DISTRIBUTION. In 1997, we completed our transition to a
direct sales force in North America. With 24 direct sales personnel and seven
manufacturers representatives, we have built strong distribution capabilities
that we plan to leverage with the acquisition of complementary technologies and
products. We have an extensive international distributor network, augmented by a
new agreement with St. Jude Medical to handle sales of AVECOR products in
Central America, South America and Mexico.

            OUR RESULTS FOR 1997 reflected continued growth, with net sales
increasing to $46,864,000, up 6% from 1996. Net income was $1,327,000, equal to
17 cents per share. In the previous year, the Company reported a loss of
$567,000, or 7 cents per share, after non-recurring charges for litigation
expense that amounted to $2.6 million after taxes.

            Sales growth was led by SIGNATURE custom tubing packs, up 32%, and
the AFFINITY oxygenator line, which increased 3%. These gains were offset by
declines in the Company's older silicone membrane oxygenator line, down 6%, and
the MYOtherm cardioplegia system, which was down 8%.

            Results in the second half of the year were held down by three
factors -- the strength of the U.S. dollar, which reduced international sales;
inventory reduction by two former distributors who were replaced by the direct
sales force; and lower gross margin resulting from both lower average selling
prices and higher product costs due to reduced production volumes.

            We continued to invest in research and development during 1997,
spending $3.9 million to pursue a number of new product opportunities. R&D
spending rose 7% over 1996 and is anticipated to increase approximately 10% in
1998 as we continue to expand and improve our product line. Selling, general and
administrative expenses also increased in 1997, mainly reflecting costs of
developing the direct sales force and introducing new products.

            NEW PRODUCTS.  We are excited by the reception given our new 
AFFINITY PUMP SYSTEM by perfusionists and surgeons. Early users have praised 
the pump's safety features and performance, and we are on plan in terms of the 
number of hospitals that have ordered the pump or are evaluating the system. 
The pump is the safest on the market. It will not drain the

                                      2
<PAGE>

blood reservoir, cannot overpressurize the perfusion circuit, and prevents
hazardous retrograde flow. We began selling the pump in Europe during the second
quarter of 1997 and began U.S. introduction late in the third quarter after
receiving clearance from the Food and Drug Administration in August.

            Our new MYOTHERM-Registered Trademark- XP CARDIOPLEGIA SYSTEM was
also introduced late in the year and has been enthusiastically received by
customers. It employs second-generation technology for superior heat exchange
and ease of use.

            We received marketing clearance from the FDA in late February of
1998 for the AFFINITY oxygenator with TRILLIUM-TM- BIO-PASSIVE SURFACE. All
blood-contact surfaces in the oxygenator are coated with a non-leaching
synthetic hydrophilic polymer which contains a small amount of heparin. The
special surface is designed to minimize activation of blood constituents which
otherwise occurs as a result of contact with conventional synthetic surfaces.

            Many of our customers prefer circuit components which have been
coated to enhance bio-compatibility. We will offer the coating as an option on
the AFFINITY oxygenator and plan to file additional 510(k) applications during
1998 for coated versions of other components in the heart-lung bypass circuit.

            RESEARCH AND DEVELOPMENT activities during 1998 will focus heavily
on additional applications of the blood pump, including a vacuum-assisted
version for the small but growing segment of the market that uses
vacuum-assisted venous drainage. This potential product could also become a key
component in a simplified circuit used to support minimally invasive surgery,
and could be used as a ventricular assist pump -- a high-profile market which
could stimulate further interest in the AFFINITY pump for cardiac surgery.

            We anticipate filing a 510(k) application with the FDA in the second
quarter of 1998 for our SATURATION/HEMATOCRIT monitoring device. We are
completing work on this innovative product, which uses a spectrometer for
improved accuracy and can read oxygen saturation in the patient's blood through
the walls of tubing used in the perfusion circuit. Because there is no
disposable component, it reduces costs for the hospital. We believe the
technology will serve as a platform for the development of additional monitoring
applications in cardiac surgery and in intensive care units.

            Another focus of our research will be to conduct studies intended to
demonstrate improved patient care through the use of our technology. This will
both help us compete and also command premium pricing for our products. Early
animal and in vitro studies, for example, indicate that our bio-passive surface
preserves platelet numbers and function and maintains bleeding time at base-line
levels during two- or three-hour perfusions. This could reduce blood loss and
the need for a transfusion during and after surgery.

            We are continuing to diversify our product offerings, and believe
that our newest products will advance our multiple goals of improving patient
care, lowering costs and fueling revenue growth. All of us at AVECOR are excited
about what we have accomplished in a very short period of time. We appreciate
the continued support and encouragement of our shareholders.


Sincerely,

/s/ ANTHONY BADOLATO

ANTHONY BADOLATO
CHIEF EXECUTIVE OFFICER
MARCH 12, 1998

                                     3

<PAGE>

PRODUCT REVIEW


The products of AVECOR Cardiovascular Inc. are used primarily in heart/lung
bypass surgery and for long-term respiratory support. The annual worldwide
market for specialty medical devices used in bypass surgery is estimated at $800
million, of which more than $600 million is attributable to disposable products.

            The Company's current products include:

            THE AFFINITY-TM- OXYGENATOR. The AFFINITY is a microporous, hollow
fiber membrane oxygenator that quickly became one of the market leaders
nationally following its U.S. introduction in 1994. During a bypass procedure,
the oxygenator takes the place of the patient's lungs, removing carbon dioxide
and adding oxygen to the blood. The AFFINITY is a state-of-the-art device that
studies have shown to be one of the most efficient oxygenators on the market. It
combines high gas transfer with low pressure drop. Its compact size provides low
priming volumes; its clear polycarbonate case permits high visibility of all
phases of the unit's operation. The AFFINITY oxygenator was estimated to be the
third best-selling oxygenator in the U.S. for 1997, with a market share of
approximately 15%.

                SOLID SILICONE MEMBRANE OXYGENATORS. The Company markets a
complete line of these oxygenators in several models and sizes. This technology
permits extended use of the oxygenator for certain applications without the
deterioration of performance that microporous membrane oxygenators may
experience. This is particularly important for procedures that entail long-term
support.

                 AFFINITY-TM- BLOOD PUMP SYSTEM. The AFFINITY blood pump
incorporates an innovative design that offers superior blood-handling
characteristics and cost advantages over the centrifugal pumps and roller pumps
that are widely used in heart/lung bypass surgery today. AVECOR introduced the
pump in the U.S. late in the third quarter of 1997 following clearance from the
FDA in August. European distribution began late in the second quarter following
clinical trials at multiple sites. A study* published in THE JOURNAL OF
EXTRA-CORPOREAL TECHNOLOGY reported that the inherent physical characteristics
of the design used in the AFFINITY pump make it impossible for the pump to
produce dangerous positive or negative pressures, and that the design "possesses
important safety advantages over roller and centrifugal pumps for
cardiopulmonary bypass applications."

            BLOOD RESERVOIRS. The Company produces a hardshell cardiotomy
reservoir and venous reservoir bags. These devices are used to filter and store
blood during bypass surgery. The Company began marketing two new reservoirs in
mid-1994.

            MYOTHERM-TM- XP CARDIOPLEGIA DELIVERY SYSTEM.  AVECOR introduced 
this new generation of the MYOtherm product line following FDA clearance in 
July 1997. The system is


                                      4
<PAGE>

used to infuse specially formulated solutions, which often include oxygenated
blood, directly into the patient's coronary arteries while the heart is stopped
during bypass surgery. In addition to delivering nutrients to the heart, these
solutions are also used to arrest the heart and maintain prescribed
temperatures. The MYOtherm XP cardioplegia system was designed for superior
performance and ease of use while incorporating improved manufacturing
efficiencies.

            ECMO SYSTEM. The Company produces a system for extracorporeal
membrane oxygenation (ECMO), which is the long-term cardiopulmonary support of
premature infants, newborns and other patients with life-threatening respiratory
disorders. The system includes reservoir bags, heat exchangers and a range of
different-sized membrane oxygenators.

            SIGNATURE-TM- CUSTOM TUBING PACKS. All or some of the devices used
in a heart/lung bypass procedure can be pre-connected and sold in a custom
tubing pack. The components to be included in the pack and the exact way they
are arranged and connected are determined by the specifications provided by our
customer. The Company has developed computer software that allows it to design
custom tubing packs according to these individual specifications and to quote
prices within hours of a customer request. AVECOR began assembling and selling
custom tubing packs in Europe in 1992 and in the United States in mid-1993.

            AFFINITY-TM- ARTERIAL FILTER. The AFFINITY filter is the final 
safety component in the circuit of specialized medical devices used in 
heart/lung bypass surgery, ensuring that the oxygenated blood is free of air 
or particulate emboli before reentering the patient's body. The filter offers 
low-volume priming, high visibility, excellent air handling and excellent 
hemodynamics. The Company introduced this product for evaluation by customers 
late in 1995, with full release worldwide in the first quarter of 1996. The 
Company previously sold filters from other manufacturers as part of its 
custom tubing packs.

            ONCOURSE-TM- CONTINUOUS QUALITY CONTROL (CQI) MANAGER. OnCourse 
CQI Manager is a Windows-Registered Trademark--based software program that 
guides perfusionists through the necessary steps in establishing a CQI 
program. In addition, it generates a variety of useful reports for 
perfusionists, including the annual American Board of Cardiovascular 
Perfusion clinical activity report and several custom reports which address 
non-compliance, standards of perfusion and equipment preventative 
maintenance. Introduced in late 1995, the software is currently offered to 
AVECOR customers who make a major commitment to AVECOR products -- another 
important product line differentiation for AVECOR in the marketplace.

*J. Patrick Montoya, Ph.D., Scott I. Merz, Ph.D., and Robert H. Bartlett, M.D., 
"Significant Safety Advantages Gained with an Improved Pressure Regulated Blood 
Pump," THE JOURNAL OF EXTRA-CORPOREAL TECHNOLOGY, June 1996, pp. 71-78.

                                      5
<PAGE>

MANAGEMENT'S DISCUSSION AND ANALYSIS OF RESULTS OF OPERATIONS 
AND FINANCIAL CONDITION

The following discussion of the Company's results of operations and financial
condition should be read in conjunction with the Company's Consolidated
Financial Statements and Notes thereto.

OVERVIEW

AVECOR Cardiovascular Inc. (the "Company") develops, manufactures and markets 
specialty medical devices for heart/lung bypass surgery and long-term 
respiratory support. The Company was incorporated on December 13, 1990, and 
in June 1991, acquired the business and assets and assumed certain 
liabilities of the surgical division of SCIMED Life Systems, Inc. (the 
"Predecessor Business"). On December 1, 1992, the Company acquired AVECOR 
Cardiovascular Ltd. (formerly Cardio Med Ltd.) pursuant to which AVECOR 
Cardiovascular Ltd. became a wholly-owned subsidiary of the Company. AVECOR 
Cardiovascular Ltd. had formerly been a distributor for the Company in the 
United Kingdom. In October 1995, the Company opened a sales office in France 
which is organized as a wholly-owned subsidiary of AVECOR Cardiovascular Ltd.

      The assets acquired by the Company from the Predecessor Business included
the Company's line of solid silicone membrane oxygenators. Since that time, the
Company has engaged in extensive product development, resulting in the
introduction and receipt of regulatory approval from the U.S. Food and Drug
Administration (the "FDA") for the following proprietary products:


<TABLE>
<CAPTION>

PRODUCT                                                        APPROVAL DATE
- -------------------------------------------------------------------------------
<S>                                                            <C>
MYOtherm cardioplegia delivery system                          October 1991

Signature custom tubing packs                                  July 1993

Affinity oxygenator                                            November 1993

Affinity blood reservoirs                                      July 1994

Affinity arterial filter                                       October 1995

MYOtherm XP
  (improved cardioplegia delivery system)                      July 1997

Affinity blood pump                                            August 1997

Affinity oxygenator with
  Trillium bio-passive surface                                 February 1998

</TABLE>

RESULTS OF OPERATIONS

COMPARISON OF THE YEAR ENDED DECEMBER 31, 1997 WITH THE YEAR ENDED 
DECEMBER 31, 1996

      NET SALES. Net sales increased 6% to $46,864,000 for 1997 from $44,401,000
for 1996. This increase was principally the result of a higher volume of product
shipments of the Company's Signature custom tubing packs and Affinity product
line. Overall, average prices of product shipments declined slightly when
compared to 1996.

      Signature custom tubing pack and the Affinity product line net sales
increased $2,401,000 and $697,000 from 1996, respectively. A significant portion
of the Affinity revenue increase was attributed to the Affinity blood pump which
the Company began marketing internationally in June 1997. The Company received
FDA marketing approval for this product in August 1997. These increases were
partially offset by decreases in the silicone membrane oxygenator line which
decreased by $436,000 and the Myotherm cardioplegia line which decreased by
$339,000. Management believes the decline in net sales of the Myotherm
cardioplegia line to be temporary as customers delayed their purchasing
decisions in anticipation of the Company's launch of its new version of the
Myotherm cardioplegia system (Myotherm XP) which received marketing clearance
from the FDA in July 1997. The Myotherm XP was launched both in the United
States and internationally in early 1998.

      Sales to customers located outside of the United States were approximately
41% of consolidated net sales for 1997 and 1996.

      During the third quarter of 1997, the Company terminated agreements with
its last remaining United States distributor and its only Canadian distributor.
Sales in the territories formerly represented by these distributors decreased
approximately $1,400,000 in 1997 when compared to 1996. These markets are now
being served by the Company's direct sales force. While management believes
these revenue declines are temporary and caused by the transition to a direct
sales force in these territories and the depletion of product inventories of the
former distributors, this forward-looking expectation is primarily dependent on
the ability of the direct sales personnel to maintain and develop relations and
revenue levels at the medical institutions previously served by these
distributors.

      Although revenues from distributors in the continental European countries
and Asia increased about $800,000 during the twelve months ended December 31,
1997 when compared to the corresponding period in 1996, these distributors'
sales for the six-month period ended December 31, 1997 decreased approximately
$690,000 when compared to the six-month period ended December 31, 1996 and
decreased about $983,000 when compared to the six-month period ended June 30,
1997. During the latter half of 1997, currencies in Europe and Asia
substantially weakened relative to the U.S. dollar and the U.K. pound sterling.
The Company believes that these types of fluctuations in currency exchange rates
reduce demand for the Company's products by increasing the price of the
Company's products in the currency of the countries in which the product is
sold. Given the inherent uncertainty of exchange rates, the Company cannot
predict if these exchange rate variances will remain constant, reverse or
worsen.

      Sales to the Company's formerly exclusive Mexican distributor declined
about $340,000 in 1997 when compared to 1996. On October 9, 1997, the Company
entered into an agreement with St. Jude Medical to distribute the Company's
products in Mexico and in Central and South America. Previous sales in these
countries have not been significant to the Company. The formerly exclusive
Mexican distributor will continue to market the Company's silicone membrane
product line in Mexico.

      The aforementioned factors impacted sales within all of the Company's
product lines. The revenue declines discussed above were exceeded by revenue
growth in the Company's other domestic and foreign markets.

      The Company has continued to experience decreased sales to contract
perfusion groups controlled by certain of its competitors. Sales to contract
perfusion groups controlled by one of the Company's competitors decreased
$750,000 to $1,100,000 for 1997 from $1,850,000 for 1996. The Company believes
that control of contract perfusion groups by its competitors will continue to
have a negative impact on the Company's ability to market its products to such
groups or to


                                      6
<PAGE>

hospitals or other medical providers that contract with competitor-controlled
groups for perfusion services, and could have a material adverse effect on the
Company's business, financial condition and results of operation. This
forward-looking statement is subject to the degree of control exerted by the
Company's competitors with respect to purchasing decisions made by controlled
groups of perfusionists, the extent of future acquisitions of contract perfusion
groups by the Company's competitors, the breadth of the Company's product
offerings relative to those competitors controlling contract perfusion groups,
and the degree to which the Company's research and development and marketing
efforts result in the successful commercialization of products with enhanced or
superior performance characteristics.

      COST OF SALES/GROSS PROFIT. Gross profit as a percentage of net sales
decreased to 41.2% for 1997 from 41.5% for 1996. The cost of sales percentage
for 1997 was unfavorably impacted by significant increases in sales of the
Company's lower-margin Signature custom tubing pack line, as well as competitive
pricing pressures in the marketplace. The mix of products sold in any period
will influence the cost of sales and gross profit for the period.

      Affinity oxygenator costs continued to improve due to material cost and
efficiency improvements, although these improvements were largely offset by an
ongoing decrease in average selling prices and reduced production volume,
primarily in the fourth quarter, due to lower-than-expected sales volume. The
Company believes the gross profits in early 1998 will continue to be negatively
influenced because of these reduced production levels.

      The Company's future gross profit margin percentages will be influenced by
the ongoing pressures of the competitive pricing environment, changes in the
sales mix, the required levels of production, new product introductions and the
extent of further manufacturing efficiencies or improved material costs, if any.
Given the uncertainty associated with new product introductions, the ultimate
realization of any such manufacturing efficiencies or material cost
improvements, and the continuing price pressures characteristic in the Company's
markets, the Company cannot be certain if its gross profit margin will be
maintained, improve or decline.

      SELLING, GENERAL AND ADMINISTRATIVE AND LITIGATION EXPENSE. Selling,
general and administrative expenses increased 13% to $13,428,000 for 1997 from
$11,885,000 for 1996. This increase is primarily attributed to costs associated
with the continuing development of a direct sales force in certain of the
Company's territories formerly served by distributors and independent sales
representatives and costs incurred for the introduction of new products,
including the Affinity blood pump. As a percent of sales, selling, general and
administrative expenses increased to 28.7% for 1997 from 26.8% for 1996.

      Management anticipates that selling, general and administrative expenses
for the year ended December 31, 1998 will be higher than the year ended December
31, 1997 and will approximate 1997 as a percentage of sales dollars. This
forward-looking statement will be influenced by revenue levels achieved by the
Company, its ability to attract and retain qualified sales personnel as the
Company continues to develop its direct sales force, and the timing and extent
of promotional activities associated with the introduction of the MYOtherm XP,
Affinity oxygenator with Trillium bio-passive surface and other new product
introductions, if any.

      On July 17, 1996, the Company reached an agreement with COBE Laboratories
Inc. (COBE) to settle COBE's patent suit against the Company. The terms of the
settlement with COBE provided for the Company to make net payments totaling
$2,200,000. Two net payments of $1,100,000 were made in August 1996 and August
1997, respectively. The Company recorded settlement costs and professional
expenses of approximately $4,205,000 in 1996 in connection with the COBE suit.
No related expenses were incurred for the COBE matter in 1997.

      RESEARCH AND DEVELOPMENT EXPENSES. Research and development expenses
increased 7% to $3,902,000 for 1997 from $3,651,000 for 1996. This increased
research and development spending is a result of the Company's ongoing efforts
to pursue a number of potential and realized product opportunities including the
Myotherm XP, Affinity blood pump, the Affinity oxygenator with Trillium
bio-passive surface and new oxygen saturation/hematocrit technology. The Company
received the appropriate marketing clearances from the FDA for the Myotherm XP,
Affinity blood pump and Affinity oxygenator with Trillium bio-passive surface in
July 1997, August 1997 and February 1998, respectively. There can be no
assurance that the Myotherm XP, Affinity blood pump or Affinity oxygenator with
Trillium bio-passive surface will become commercially successful.

      The Company anticipates that research and development expenses for 1998
will increase approximately 10% over 1997 levels, as the Company moves to expand
and improve its proprietary line of disposable medical devices. This
forward-looking projection is dependent upon the extent and timing of new
product development and the impact of the regulatory process in obtaining
marketing clearance for new products, including a new oxygen
saturation/hematocrit device which is expected to be submitted to the FDA in the
second quarter of 1998. The need or desire to modify the Company's existing
products could also influence the level of research and development expenses.
There can be no assurance, however, that the Company's research and development
efforts will result in regulatory submissions to the FDA as set forth above, if
at all, or will result in any commercially successful products. The
forward-looking statements regarding anticipated regulatory submissions
contained in this paragraph will be impacted by the results of the Company's
development efforts, the availability of any required clinical data, any changes
in the regulatory scheme for such products, and the Company's assessment of the
cost and anticipated benefit of such submissions.

      INTEREST. Interest income decreased to $495,000 for 1997 from $725,000 for
1996. This decrease in interest income is primarily due to the use of cash and
cash equivalents and investments for the Company's new facility, the purchase of
manufacturing molds and equipment, additional inventories needed to support the
Company's new product lines and revenue growth, and the costs associated with
the COBE matter. Interest income during 1997 and 1996 was earned primarily from
the investment of the remaining net proceeds from the Company's June 1995 stock
offering. At December 31, 1997, the majority of these remaining net proceeds
were invested with two investment portfolio managers who invested in bank
certificates of deposit, U.S. government securities, agency paper, money
markets, commercial paper and corporate obligations.

      Interest expense for 1997 was $383,000 and exclusively due to the mortgage
on the new facility. The closing on the facility purchase occurred in late
January 1997.


                                      7
<PAGE>

      INCOME TAX PROVISION. For 1997, a tax provision of $745,000 was recorded
as compared to a tax benefit of $34,000 for 1996. The 1997 and 1996 effective
tax rates differ from the normal U.S. statutory tax rate primarily due to losses
incurred by the Company's French subsidiary for which no tax benefit has been
recognized because of uncertainty of realization, offset by the generation of
research and experimentation credits.

      NET INCOME (LOSS). Net income was $1,327,000 or $.17 per share, on a
diluted basis, for 1997 compared to a net loss of $567,000 or $.07 per share, on
a diluted basis, for 1996. The 1996 loss is primarily due to litigation and
settlement expense incurred during 1996 in connection with the COBE lawsuit,
which resulted in a charge to operations of $4,205,000.


COMPARISON OF THE YEAR ENDED DECEMBER 31, 1996 WITH THE YEAR ENDED 
DECEMBER 31, 1995

      NET SALES. Net sales increased 33% to $44,401,000 for 1996 from
$33,340,000 for 1995. This increase was principally the result of a higher
volume of product shipments of the Company's Affinity product line and Signature
custom tubing packs. Overall, average prices associated with 1996 product
shipments declined slightly from those of 1995 in response to competitive
pricing in the market place. Selective price increases were implemented in the
last half of 1996.

      Sales from the Affinity product line and Signature custom tubing packs
increased $7,159,000 and $3,943,000 from 1995, respectively. The favorable
impact of increased net sales of these product lines was partially offset by a
decrease of $276,000 in net sales of the Company's older solid silicone membrane
oxygenator product line.

      COST OF SALES/GROSS PROFIT. Gross profit as a percentage of net sales
decreased to 41.5% for 1996 from 45.5% for 1995. The cost of sales percentage
for 1996 was unfavorably impacted by significant increases in sales of the
Company's lower-margin Signature custom tubing pack line, as well as competitive
pricing pressures in the marketplace.

      Higher production volumes continued to improve Affinity oxygenator product
costs, although these improvements were offset, primarily by an ongoing decrease
in average selling prices due to the Company being in a competitive pricing
environment. Also, optimal volume-related manufacturing efficiencies were not
achieved throughout 1996 for production of the Company's Affinity arterial
filter. Production of the Affinity arterial filter began on or about December
31, 1995.

      SELLING, GENERAL AND ADMINISTRATIVE AND LITIGATION EXPENSE.  Selling, 
general and administrative expenses increased 36% to $11,885,000 for 1996 
from $8,727,000 for 1995. This increase is attributed to costs associated 
with the continuing development of a direct sales force in certain of the 
Company's territories formerly served by distributors and independent sales 
representatives and the overall increase in support needed to achieve the 
Company's sales levels. In connection with the Company's development of a 
direct sales force, in October 1995, the Company opened a sales office in 
France from which it fields a direct sales force to serve the French market. 
The Company recorded non-recurring charges in the fourth quarter of 1996 
associated with relocation and lease abandonment expenses in connection with 
the consolidation of the Company's U.S. operations from four leased 
facilities into one owned property and the addition and subsequent 
resignation of a Chief Operating Officer.

      Additionally, the Company recorded settlement costs and professional fees
of $4,205,000 in 1996, in connection with the COBE suit, compared to $170,000 in
1995 (see Note 9).

      RESEARCH AND DEVELOPMENT EXPENSES. Research and development expenses
increased 32% to $3,651,000 for 1996 from $2,773,000 for 1995. This increased
research and development spending was a result of the Company's efforts to
pursue a number of potential product opportunities, including the Affinity blood
pump.

      INTEREST INCOME. Interest income increased to $725,000 for 1996 from
$586,000 for 1995. Interest income during 1996 and 1995 was earned primarily
from the investment of the remaining net proceeds from the Company's June 1995
stock offering. At December 31, 1996, the majority of these remaining net
proceeds were invested with two investment portfolio managers who invested in
U.S. government securities, agency paper, money markets, commercial paper and
corporate obligations.

      INCOME TAX PROVISION. For 1996, a tax benefit of $34,000 was recorded as
compared to a tax provision of $780,000 for 1995. The 1996 effective tax rate
differs from the normal statutory tax rate primarily due to losses incurred by
the Company's French subsidiary for which no tax benefit has been recognized
because of uncertainty of realization, offset by the generation of research and
experimentation credits. The 1995 tax provision reflects an effective rate which
benefited from use of previously generated net operating loss carryforwards and
research and experimentation credits.

      NET INCOME (LOSS). Net loss was $567,000 or $.07 per share, on a diluted
basis, for 1996 compared to net income of $3,296,000 or $.45 per share, on a
diluted basis, for 1995. The 1996 loss was primarily due to litigation and
settlement expense incurred during 1996 in connection with the COBE lawsuit,
which resulted in a charge to operations of $4,205,000.

LIQUIDITY AND CAPITAL RESOURCES

For 1997, the Company used $891,000 in operating activities compared to
$2,470,000 used for operating activities in 1996. The net change of $1,579,000
is primarily the result of $3,100,000 of cash usages during 1996 related to the
COBE litigation compared to $1,100,000 of cash usages during 1997, smaller
increases in levels of inventories and reduced prepaid expenses. These operating
provisions for cash were partially offset by a smaller increase in accrued
expenses in 1997 when compared to 1996, reduced accounts payable and increased
accounts receivable balances in 1997 when compared to 1996. The Company's
inventories have continued to increase as a result of inventories needed to
support the Company's new product lines, revenue growth and, in part, as a
result of lower than anticipated shipments of the Affinity product line
primarily in the third and fourth quarters of 1997.

      The Company believes that its existing cash and cash equivalents and
short-term investments, as well as anticipated cash generated from operations,
will be sufficient to satisfy the Company's cash requirements for the
foreseeable future.

      Cash expenditures for capital additions, other than the purchase of the
new facility and related furniture, fixtures and equipment, totaled $4,628,000
in 1997 compared to $1,979,000 in 1996. These expenditures were primarily
related to equipment, molds and tooling necessary to begin the production and
marketing of the Affinity blood pump and MYOtherm XP, and to increase production
efficiencies and reduce raw material


                                      8
<PAGE>

costs of the Affinity oxygenator and related blood reservoirs. The 1997
investment in equipment includes $1,494,000 related to the Affinity blood pump.
This pump equipment is placed with customers in exchange for a long-term
commitment to purchase disposable products from the Company. During 1997, the
expenditures for furniture, fixtures and equipment additions related to the
Company's new U.S. manufacturing, research and development and administrative
facility were approximately $760,000.

      Leases for the Company's U.S. manufacturing, research and development and
administrative facilities expired on December 31, 1996. In January 1997, the
Company consolidated its four separate facilities into a newly constructed
facility, which the Company has purchased. The cost of this facility and related
additions was approximately $9,650,000. To finance the total cost of this
project, the Company entered into a $5,167,000 bank note payable agreement in
January 1997 and, in addition, expended $4,483,000 out of corporate funds,
including $650,000 paid in 1996.

      The note payable agreement bears interest at 8.11% and requires monthly
principal payments of $21,531, plus interest, through January 2002 with the
remaining principal and interest due February 2002. The note payable is
collateralized by the new corporate headquarters and manufacturing facility and,
among other things, requires the Company to meet certain ratios related to
leverage, debt service and cash flow. Additionally, the bank note payable
agreement prohibits the Company from distributing dividends to its shareholders.

      At December 31, 1997, the Company had no restricted cash or investments.
Of the $4,450,000 which was restricted at December 31, 1996 for purchase of the
new facility, $1,000,000 was used in payment of the facility and $3,450,000
became unrestricted, was reinvested and is being used for general corporate
purposes, research and development and working capital.

      The Company's capital expenditures for 1998 are expected to approximate
those of 1997, excluding the amounts paid in 1997 for the new facility and
related additions. This estimate includes additional equipment, molds and
tooling for new oxygen saturation/hematocrit technology, the Affinity blood
pump, the MYOtherm XP and for furthering the production of the Affinity
oxygenator line.

      The foregoing forward-looking statements relating to the amount of capital
expenditures and ultimate cash usage are dependent on the progress of the
Company's product development efforts, the outcome of certain patent matters
(see Note 9), the timing of the receipt of FDA marketing clearances for any
future products and the investment in opportunities to further existing
products' production related to improved production efficiencies and quality,
and reduced cost.

FOREIGN CURRENCY TRANSACTIONS

Transactions by the Company's international subsidiaries are negotiated,
invoiced and paid in various foreign currencies, primarily pounds sterling and
U.S. dollars. Accordingly, the Company is currently subject to risks associated
with fluctuations in exchange rates between the various currencies.

      Substantially all of the Company's other international transactions are
denominated in U.S. dollars. Fluctuations in currency exchange rates in other
countries may therefore reduce the demand for the Company's products by
increasing the price of the Company's products in the currency of the countries
in which the products are sold.

YEAR 2000 ISSUES

Computer programs have historically been written to abbreviate dates by using
two digits instead of four digits to identify a particular year. The so-called
"Year 2000" problem or "millennium bug" is the inability of computer software or
hardware to recognize or properly process dates ending in "00." As the year 2000
approaches, significant attention is being focused on updating or replacing such
software and hardware in order to avoid system failures, miscalculations or
business interruptions that might otherwise result.

      The Company has reviewed its internal information systems and believes
that the costs and effort to address the Year 2000 problem will not be material
to its business, financial condition or results of operations, and, to the
extent necessary, may be resolved through replacement and upgrades to the
software it licenses from third parties. The Company has also reviewed its
OnCourse software product, the software embedded in its Affinity blood pump
console and the software for its saturation/hematocrit monitor under development
and believes them to be Year 2000 compliant. However, the Year 2000 problem may
also adversely impact the Company by affecting the business and operations of
parties with which the Company transacts business. The Company has not initiated
any formal communication with such parties regarding the Year 2000 problem, and
is unable to determine the likelihood or potential impact of any such event.
There can be no assurance that the Company will be able to effectively address
Year 2000 issues internally in a cost-efficient manner and without interruption
to its business, or that Year 2000 difficulties encountered by its suppliers,
customers or other parties will not have a material impact on the Company's
business, financial condition and results of operations.

NEW ACCOUNTING PRONOUNCEMENTS

In June 1997, the Financial Accounting Standards Board issued Statement 131,
"Disclosures About Segments of an Enterprise and Related Information," a new
standard of reporting information about operating or business segments in
financial statements. The new standard will be effective for the Company's
annual financial statements in 1998. Although the Company has not specifically
evaluated what impact, if any, this new standard will have on the Company's
current reporting of operating and business segments, the Company believes it
will continue reporting as one operating and business segment.

      In June 1997, the Financial Accounting Standards Board issued Statement
130, "Reporting Comprehensive Income," a new standard requiring the reporting
and display of "comprehensive income" (defined as the change in equity of a
business enterprise during a period from sources other than those resulting from
investments by owners and distributors to owners) and its components in a full
set of general purpose financial statements. The new standard will be effective
for the Company's annual financial statements in 1998. The Company's cumulative
translation adjustment is considered a component of "comprehensive income,"
however the Company has not evaluated what other components of its changes in
equity would be components of "comprehensive income."


                                      9
<PAGE>
<TABLE>
<CAPTION>
CONSOLIDATED BALANCE SHEETS                                                         AVECOR CARDIOVASCULAR, INC.

                                                                                      AS OF DECEMBER 31,
                                                                                1997                    1996
- ---------------------------------------------------------------------------------------------------------------
<S>                                                                             <C>                <C>
ASSETS

Current assets:
      Cash and cash equivalents                                                  $ 1,215,000       $ 6,114,000
      Short-term investments                                                       3,727,000         2,638,000
      Accounts receivable, net                                                     8,277,000         7,298,000
      Inventories                                                                 10,634,000         9,476,000
      Deferred taxes                                                               1,315,000         1,274,000
      Other current assets                                                           330,000           744,000
                                                                                 -----------------------------
         Total current assets                                                     25,498,000        27,544,000
Restricted cash and investments                                                           --         4,450,000
Property, plant and equipment, net                                                16,689,000         4,808,000
Other assets                                                                         572,000           359,000
                                                                                 -----------------------------
      Total assets                                                               $42,759,000       $37,161,000
                                                                                 -----------------------------
                                                                                 -----------------------------

LIABILITIES AND SHAREHOLDERS' EQUITY

Current liabilities:
      Accounts payable                                                           $ 1,978,000       $ 2,790,000
      Accrued expenses                                                             3,058,000         3,091,000
      Current maturities of long-term debt                                           258,000                --
      Accrued litigation settlement                                                       --         1,100,000
                                                                                 -----------------------------
         Total current liabilities                                                 5,294,000         6,981,000

Deferred grant                                                                       153,000           205,000
Deferred taxes                                                                            --            37,000
Long-term debt                                                                     4,694,000                --

Commitments and contingencies (Notes 5 and 9)

Shareholders' equity:
      Serial preferred stock, par value $.01 per share;
         authorized 2,000,000 shares; none issued
      Common stock, par value $.01 per share; authorized 20,000,000 shares;  
         issued and outstanding shares 8,021,000 and 7,812,000 shares at
         December 31, 1997 and 1996, respectively                                     80,000            78,000
      Additional paid-in capital                                                  30,482,000        29,024,000
      Retained earnings                                                            1,936,000           609,000
      Cumulative translation adjustments                                             120,000           227,000
                                                                                 -----------------------------
         Total shareholders' equity                                               32,618,000        29,938,000
                                                                                 -----------------------------
            Total liabilities and shareholders' equity                           $42,759,000       $37,161,000
                                                                                 -----------------------------
                                                                                 -----------------------------
</TABLE>
                  THE ACCOMPANYING NOTES ARE AN INTEGRAL PART 
                  OF THE CONSOLIDATED FINANCIAL STATEMENTS.

                                      10
<PAGE>
<TABLE>
<CAPTION>
CONSOLIDATED STATEMENTS OF OPERATIONS                                          AVECOR CARDIOVASCULAR, INC.

                                                                   FOR THE YEARS ENDED DECEMBER 31,
                                                              1997              1996              1995
- ----------------------------------------------------------------------------------------------------------
<S>                                                        <C>               <C>               <C>

Net sales                                                  $46,864,000       $44,401,000       $33,340,000
Cost of sales                                               27,574,000        25,986,000        18,180,000
                                                           -----------------------------------------------
            Gross profit                                    19,290,000        18,415,000        15,160,000

Operating expenses:
      Selling, general and administrative                   13,428,000        11,885,000         8,727,000
      Litigation expense                                            --         4,205,000           170,000
      Research and development                               3,902,000         3,651,000         2,773,000
                                                           -----------------------------------------------
            Operating income (loss)                          1,960,000        (1,326,000)        3,490,000

      Interest income                                          495,000           725,000           586,000
      Interest expense                                         383,000                --                --
                                                           -----------------------------------------------

Income (loss) before income taxes                            2,072,000          (601,000)        4,076,000
Income tax provision (benefit)                                 745,000           (34,000)          780,000
                                                           -----------------------------------------------

            Net income (loss)                              $ 1,327,000      $   (567,000)      $ 3,296,000
                                                           -----------------------------------------------
                                                           -----------------------------------------------

Earnings per share:
      Basic                                                $      0.17      $      (0.07)      $      0.47
                                                           -----------------------------------------------
                                                           -----------------------------------------------
      Diluted                                              $      0.17            $(0.07)      $      0.45
                                                           -----------------------------------------------
                                                           -----------------------------------------------
</TABLE>

                  THE ACCOMPANYING NOTES ARE AN INTEGRAL PART 
                  OF THE CONSOLIDATED FINANCIAL STATEMENTS.

                                      11
<PAGE>
<TABLE>
<CAPTION>
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY                                               AVECOR CARDIOVASCULAR, INC.

                                                             FOR THE YEARS ENDED DECEMBER 31, 1997, 1996 AND 1995
                                                    COMMON STOCK        ADDITIONAL                     CUMULATIVE
                                                    ------------          PAID-IN        RETAINED      TRANSLATION
                                               SHARES    PAR VALUE       CAPITAL         EARNINGS      ADJUSTMENTS       TOTAL
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                           <C>          <C>         <C>             <C>            <C>            <C>
Balances at December 31, 1994                 6,414,000    $64,000     $15,205,000     $(2,120,000)   $  (4,000)     13,145,000

Sale of share pursuant to
      public stock offering, net of
      expenses of $1,283,000                  1,161,000     12,000      12,641,000              --           --      12,653,000

Sale of shares for cash
      pursuant to Employee
      Stock Purchase Plan                        18,000         --         178,000              --           --         178,000

Exercise of stock options                        71,000      1,000        (155,000)             --           --        (154,000)

Tax benefit realized upon exercise
      of stock options                               --         --         255,000              --           --         255,000

Net income for 1995                                  --         --              --       3,296,000           --       3,296,000

Cumulative translation adjustments                   --         --              --              --      (51,000)        (51,000)
                                              ---------------------------------------------------------------------------------

Balances at December 31, 1995                 7,664,000     77,000      28,124,000       1,176,000      (55,000)     29,322,000

Exercise of stock warrants,
      net of expenses of $35,000                 85,000      1,000         528,000              --           --         529,000

Sale of shares for cash
      pursuant to Employee 
      Stock Purchase Plan                        23,000         --         250,000              --           --         250,000

Exercise of stock options                        40,000         --         (70,000)             --           --         (70,000)
 
Tax benefit realized upon exercise
      of stock options                               --         --         192,000              --           --         192,000

Net loss for 1996                                    --         --              --        (567,000)          --        (567,000)

Cumulative translation adjustments                   --         --              --              --      282,000         282,000
                                              ---------------------------------------------------------------------------------

Balances at December 31, 1996                 7,812,000     78,000      29,024,000         609,000     227,000       29,938,000

Exercise of stock warrants                        5,000         --          28,000              --          --           28,000

Sale of shares for cash
      pursuant to Employee
      Stock Purchase Plan                        34,000         --         283,000              --          --          283,000

Exercise of stock options                       168,000      2,000         975,000              --          --          977,000

Shares issued pursuant to Medical
      Advisory Board agreement                    2,000         --          29,000              --          --           29,000

Tax benefit realized upon exercise
      of stock options                               --         --         143,000              --          --          143,000

Net income for 1997                                  --         --              --       1,327,000          --        1,327,000

Cumulative translation adjustments                   --         --              --              --    (107,000)        (107,000)
                                              ---------------------------------------------------------------------------------

Balances at December 31, 1997                 8,021,000     $80,000    $30,482,000     $ 1,936,000   $ 120,000      $32,618,000
                                              ---------------------------------------------------------------------------------
                                              ---------------------------------------------------------------------------------
</TABLE>
                  THE ACCOMPANYING NOTES ARE AN INTEGRAL PART 
                  OF THE CONSOLIDATED FINANCIAL STATEMENTS.

                                      12
<PAGE>
<TABLE>
<CAPTION>
  CONSOLIDATED STATEMENTS OF CASH FLOWS                                                             AVECOR CARDIOVASCULAR, INC.

                                                                                       FOR THE YEARS ENDED DECEMBER 31,
                                                                               1997                 1996             1995
- -------------------------------------------------------------------------------------------------------------------------------
<S>                                                                        <C>                 <C>                <C>
Cash flows from operating activities:
      Net income (loss)                                                    $  1,327,000        $  (567,000)       $ 3,296,000
      Adjustments to reconcile net income (loss) to
            net cash (used in) provided by operating activities:
         Depreciation and amortization                                        1,748,000          1,375,000          1,063,000
         Accretion of discount on investments                                  (280,000)          (508,000)          (189,000)
         Provision for bad debts                                                214,000            104,000             42,000
         Deferred income taxes                                                  (78,000)          (867,000)          (370,000)
         Stock compensation                                                      29,000                 --                 --
         Deferred grant                                                         (52,000)           (67,000)           (19,000)
         Changes in operating assets and liabilities:
            Accounts receivable                                              (1,292,000)          (958,000)        (2,088,000)
            Inventories                                                      (1,185,000)        (3,547,000)        (1,696,000)
            Other current assets                                                401,000           (199,000)          (127,000)
            Accounts payable                                                   (762,000)           122,000            946,000
            Accrued expenses                                                    139,000          1,542,000            623,000
            Accrued litigation settlement                                    (1,100,000)         1,100,000                 --
                                                                           ---------------------------------------------------
               Net cash (used in) provided by operating activities             (891,000)        (2,470,000)         1,481,000
                                                                           ---------------------------------------------------

Cash flows from investing activities:
      Purchase of property, plant and equipment                             (12,628,000)        (2,629,000)        (1,146,000)
      Purchase of short-term investments                                     (6,891,000)        (6,183,000)        (7,666,000)
      Proceeds upon sale or maturity of short-term investments                6,082,000         11,810,000          2,000,000
      Restricted cash and investments                                         3,450,000         (4,450,000)                --
      Increase in other assets                                                 (222,000)           (53,000)          (162,000)
                                                                           ---------------------------------------------------
               Net cash used in investing activities                        (10,209,000)        (1,505,000)        (6,974,000)
                                                                           ---------------------------------------------------

Cash flows from financing activities:
      Net proceeds from sales of common stock                                   283,000            250,000         12,831,000
      Net proceeds from options exercised                                       977,000            (70,000)          (154,000)
      Net proceeds from warrants exercised                                       28,000            529,000                 --
      Borrowings on long-term debt                                            5,167,000                 --                 --
      Principal payments on long-term debt                                     (215,000)                --                 --
      Grant proceeds                                                                 --            102,000                 --
                                                                           ---------------------------------------------------
               Net cash provided by financing activities                      6,240,000            811,000         12,677,000
                                                                           ---------------------------------------------------

Effect of exchange rates on cash                                                (39,000)           100,000            (41,000)
                                                                           ---------------------------------------------------

Net (decrease) increase in cash and cash equivalents                         (4,899,000)        (3,064,000)         7,143,000
                                                                           ---------------------------------------------------
Cash and cash equivalents at beginning of year                                6,114,000          9,178,000          2,035,000
                                                                           ---------------------------------------------------

Cash and cash equivalents at end of year                                   $  1,215,000        $ 6,114,000        $ 9,178,000
                                                                           ---------------------------------------------------
                                                                           ---------------------------------------------------

Supplemental disclosure:
      Significant non-cash investing and financing transaction:
         Use of restricted funds for purchase of the U.S. facility         $  1,000,000                 --                 --
         Accounts payable recorded for the purchase of property,
            plant and equipment                                                      --        $   387,000                 --

      Cash paid for income taxes                                           $    235,000        $    57,000        $   654,000
      Cash paid for interest                                               $    348,000                 --                 --
</TABLE>
                  THE ACCOMPANYING NOTES ARE AN INTEGRAL PART 
                  OF THE CONSOLIDATED FINANCIAL STATEMENTS.

                                      13
<PAGE>

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


1. BUSINESS DESCRIPTION AND SIGNIFICANT ACCOUNTING POLICIES:

BUSINESS DESCRIPTION:  AVECOR Cardiovascular Inc. (the "Company") was 
incorporated on December 13, 1990. The Company develops, manufactures and 
markets specialty medical devices for heart/lung bypass surgery and long-term 
respiratory support.

      PRINCIPLES OF CONSOLIDATION:  The consolidated financial statements 
include the accounts of AVECOR Cardiovascular Inc. and its wholly-owned 
subsidiaries, AVECOR Cardiovascular Ltd. and AVECOR Foreign Sales 
Corporation, after elimination of all significant intercompany transactions 
and accounts.

      CASH AND CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS: For financial
reporting purposes, the Company considers all highly liquid investments
purchased with an original maturity of three months or less to be cash
equivalents. The Company's cash and cash equivalent balances are concentrated
primarily with two investment managers, the majority of which is invested in
daily money market funds.

      Short-term investments consist of bank certificates of deposit, U.S.
government securities, agency paper, commercial paper and other corporate
obligations, and money market instruments and are classified as short-term in
the balance sheet based on their maturity date. All of the Company's short-term
investments mature in 1998 and are considered by management to be "available for
sale." At December 31, 1997 and 1996, the estimated fair value of the short-term
investments approximated their cost. Unrealized gains and losses were not
significant.

      At December 31, 1997, the Company had no restricted cash or investments.
At December 31, 1996, cash and short-term investements totaling $4,450,000 were
restricted as to their use.

      CONCENTRATIONS OF CREDIT RISK: The Company's accounts receivable are
primarily due from hospitals and independent foreign distributors located mainly
in the U.S. and Western Europe. Although the Company does not require collateral
from its customers, concentrations of credit risk in the U.S. are somewhat
mitigated by a large number of geographically dispersed customers. The Company
does not presently anticipate credit risk associated with foreign trade
receivables (see Note 6), although collection could be impacted by the
underlying economies of the respective countries.

      INVENTORIES:  Inventories are stated at the lower of cost or market, 
with cost determined on the first-in, first-out method.

      PROPERTY, PLANT AND EQUIPMENT: Property, plant and equipment are carried
at cost less accumulated depreciation and amortization. Depreciation and
amortization are generally recorded using the straight-line method over
estimated useful asset lives. The Company's new U.S. facility carries asset
lives of forty, fifteen and seven years for the building and shell,
improvements, and equipment and furniture, respectively. The cost of molds,
tooling and dies is capitalized and depreciated generally over periods of three
to five years using straight-line or units of production methods. Other
equipment and leasehold improvements are generally carry estimated useful lives
of five years or less (shorter of asset life or lease term for leasehold
improvements). See "REVENUE RECOGNITION" below for the Company's policy with
regards to its blood pump equipment placed with customers.

      Maintenance, repairs and minor improvements are charged to expense as
incurred while major betterments and renewals are capitalized. When assets are
sold or retired, the cost and related accumulated depreciation and amortization
are removed from the accounts and the resulting gain or loss is included in
operations.

      LONG-LIVED ASSETS: The recoverability of long-lived assets is assessed
annually or whenever adverse events or changes in circumstances or business
climate indicate that the expected cash flows previously anticipated warrant
reassessment. When such reassessments indicate the potential of impairment, all
business factors are considered and, if the carrying values of long-lived assets
are not likely to be recovered from future net operating cash flows, they will
be written down for financial reporting purposes.

      REVENUE RECOGNITION: For all products, other than when the equipment
portion of the Affinity blood pump system is shipped to the customer but title
remains with the Company, the Company recognizes sales upon product shipment.

      During 1997, the Company began marketing the Affinity blood pump system.
This blood pump system has both equipment and disposable products which are
manufactured and marketed by the Company. Typically, when the equipment portion
of the system is shipped, title to the equipment remains with the Company.
Subsequently, the total cost of this equipment is realized through ongoing sales
of disposable products to the customer, and accordingly is amortized and
recorded as a charge to operations over the life of the equipment, generally
using an asset life of three to five years.

      RESEARCH AND DEVELOPMENT:  Research and development costs are expensed 
as incurred.

      INCOME TAXES: The Company accounts for income taxes using the liability
method. The liability method provides that deferred tax assets and liabilities
are recorded based on the differences between the tax bases of assets and
liabilities and their carrying amounts for financial reporting purposes
("temporary differences") using enacted tax rates in effect in the years in
which the differences are expected to reverse. Temporary differences relate
primarily to the allowance for doubtful accounts, obsolete inventory allowances,
and accruals for vacation, product liability and warranty costs.

                                      14
<PAGE>

      NET INCOME (LOSS) PER SHARE: In February 1997, the Financial Accounting
Standards Board issued Statement No. 128, a new standard for computing and
presenting earnings per share. As required, the Company adopted this new
standard in the fourth quarter of 1997. Net income (loss) per share for all
periods presented have been computed by dividing net income (loss) by the
weighted average number of common shares outstanding ("basic EPS") and by the
weighted average number of common and common equivalent shares outstanding
("diluted EPS"). Common equivalent shares relate to stock options and stock
warrants when their effect is not antidilutive.

      For all periods presented, the weighted average common and common
equivalent shares outstanding are as follows:

<TABLE>
<CAPTION>
                                              FOR THE YEARS ENDED DECEMBER 31,
                                           1997             1996            1995
- -----------------------------------------------------------------------------------
<S>                                       <C>            <C>              <C>
Weighted average
  common shares
  outstanding                             7,921,000      7,767,000        7,046,000
Common equivalent
  shares outstanding:
   Option equivalents                        68,000             --          262,000
   Warrant equivalents                        1,000             --           45,000
                                          -----------------------------------------
Weighted average common
  and common equivalent
  shares outstanding                      7,990,000      7,767,000        7,353,000
                                          -----------------------------------------
                                          -----------------------------------------
</TABLE>

      FOREIGN CURRENCY TRANSLATION: All assets and liabilities of the Company's
international subsidiaries are translated to U.S. dollars at year-end exchange
rates, while elements of the statement of operations are translated at average
exchange rates in effect during the year. Translation adjustments arising from
the use of differing exchange rates are included in cumulative translation
adjustments in shareholders' equity.

      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 and 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.
The most significant areas which require the use of management's estimates
relate to the determination of the allowances for doubtful accounts receivable
and obsolete inventories, the need for a valuation allowance on deferred tax
assets and the determination related to the probability of the patent
contingency matter.


2. BALANCE SHEET INFORMATION:

The following provides additional information concerning selected balance sheet
accounts as of December 31, 1997 and 1996:

<TABLE>
<CAPTION>
                                                     1997           1996
- ----------------------------------------------------------------------------
<S>                                              <C>             <C>
Accounts receivable, net:
   Accounts receivable                           $ 8,611,000     $ 7,418,000
   Allowance for doubtful accounts                  (334,000)       (120,000)
                                                 ---------------------------
                                                 $ 8,277,000     $ 7,298,000
                                                 ---------------------------
                                                 ---------------------------
Inventories:
   Raw materials                                 $ 3,758,000     $ 3,424,000
   Work-in-progress                                2,189,000       2,343,000
   Finished goods                                  4,687,000       3,709,000
                                                 ---------------------------
                                                 $10,634,000     $ 9,476,000
                                                 ---------------------------
                                                 ---------------------------
Property, plant and equipment, net:
   Land                                          $ 1,409,000     $        --
   Building                                        7,413,000         557,000
   Machinery and equipment                         5,181,000       3,324,000
   Office and laboratory equipment                 3,448,000       2,430,000
   Molds, tooling and dies                         3,011,000       2,183,000
   Leasehold improvements                            829,000         786,000
   Equipment placed with customers                 1,494,000              --
                                                 ---------------------------
                                                  22,785,000       9,280,000
   Accumulated depreciation
      and amortization                            (6,096,000)     (4,472,000)
                                                 ---------------------------
                                                 $16,689,000     $ 4,808,000
                                                 ---------------------------
                                                 ---------------------------
Accrued expenses:
   Payroll                                       $   150,000     $   472,000
   Vacation                                          319,000         288,000
   Commissions                                       290,000         447,000
   Income taxes                                      709,000         616,000
   Real estate taxes                                 355,000              --
   Other                                           1,235,000       1,268,000
                                                 ---------------------------
                                                 $ 3,058,000     $ 3,091,000
                                                 ---------------------------
                                                 ---------------------------
</TABLE>

3. SHAREHOLDERS' EQUITY:

SERIAL PREFERRED STOCK: The Company's Second Restated Articles of Incorporation,
as amended, provide for 2,000,000 shares of preferred stock, par value $.01 per
share, issuable in series ("Serial Preferred Stock"). The Board of Directors is
empowered to authorize the issuance and establish the terms of any shares of the
Serial Preferred Stock without shareholder approval. In 1996, the Board of
Directors authorized 200,000 shares for issuance as Series A Junior Preferred
Stock under the Shareholder Rights Plan.

      STOCK INCENTIVE PLAN: The Company's 1991 Stock Incentive Plan ("Plan")
provides for granting to eligible employees and certain other individuals
nonqualified and incentive options. The Company has reserved 1,050,000 shares of
common stock for issuance under the Plan. At December 31, 1997 there were 20,000
shares remaining for grant under the Plan. In December 1997, the Company's Board
of Directors authorized, subject to shareholder approval, an additional 450,000
shares of common stock to be reserved for issuance under the Plan. Also, in
December 1997, the Company's Board of Directors authorized 50,000 stock option
grants under the Plan, subject to shareholder approval of the increase in shares
reserved under the Plan. Options granted under the Plan are generally
exercisable beginning one year from the date of grant in cumulative yearly
amounts of 25% of the shares under option and expire, if not exercised, five to
ten years after the date of grant.

      Pursuant to the terms of the Plan, optionees may use cash, tender
previously owned shares, or be credited for a portion of the shares exercised to
reimburse the Company for the cost of excercising the options and the taxes due
on

                                      15
<PAGE>

the recognized gain. The shares tendered from the optionee or credited at time
of exercise are at the fair market value of the stock on the transaction date.
No common shares were credited to optionees to satisfy such obligations in 1997.
In 1996, 19,000 common shares valued at $278,000 and, in 1995, 33,000 shares
valued at $486,000 were credited the optionees at the exercise date to satisfy
such obligations.

      Upon the occurrence of a change of control (as defined), all outstanding
options become immediately exercisable in full and all restrictions with respect
to outstanding restricted stock awards immediately lapse.

      The Plan also provides for stock bonuses and awards of restricted shares
of the Company's common stock to eligible recipients. Restricted shares awarded
may not be sold, assigned, or otherwise transferred by the recipient until the
shares awarded become free of restrictions on transferability. All shares still
subject to restrictions will be forfeited and returned to the Plan if
affiliation with the Company terminates. Plan administrators may waive or
accelerate the lapsing of restrictions.

      There were no stock bonuses and no restricted shares issued under the Plan
for the years ended December 31, 1997, 1996 and 1995.

      A summary of option transactions under the Plan for 1997, 1996 and 1995
follows:

<TABLE>
<CAPTION>
                                                  WEIGHTED AVERAGE       OPTION
                                                      EXERCISE         PRICE RANGE
                                        SHARES     PRICE PER SHARE      PER SHARE
- ------------------------------------------------------------------------------------
<S>                                    <C>        <C>                 <C>
Balances, December 31, 1994              570,000       $6.65          $1.00 - $9.94
   Options granted                        42,000      $10.63          $8.38 - $12.63
   Options exercised                    (104,000)      $3.20          $1.00 - $9.88
   Options cancelled                      (3,000)      $9.88              $9.88
                                        --------
Balances, December 31, 1995              505,000       $7.67          $1.00 - $12.63
   Options granted                       309,000      $12.32         $10.88 - $14.75
   Options exercised                     (58,000)      $3.58          $1.00 - $12.00
   Options cancelled                    (113,000)     $11.99          $9.88 - $12.00
                                        --------
Balances, December 31, 1996              643,000      $9.51           $2.00 - $14.75
   Options granted                       286,000      $8.28           $7.00 - $12.00
   Options exercised                    (168,000)     $5.81           $2.00 - $9.94
   Options cancelled                     (77,000)    $11.16           $6.38 - $14.00
                                        --------
   Balances, December 31, 1997           684,000      $9.72           $5.13 - $14.75
                                        --------
                                        --------
</TABLE>

      The following table summarizes information about stock options outstanding
and exercisable at December 31, 1997:

<TABLE>
<CAPTION>
                           OPTIONS OUTSTANDING                 OPTIONS EXERCISABLE
- -----------------------------------------------------------------------------------
                                  WEIGHTED-
                                    AVG.       WEIGHTED-                 WEIGHTED-
    RANGE OF                      REMAINING      AVG.                       AVG.
    EXERCISE         NUMBER      CONTRACTUAL   EXERCISE       NUMBER      EXERCISE
     PRICES        OUTSTANDING      LIFE         PRICE      EXERCISABLE     PRICE
- -----------------------------------------------------------------------------------
<S>                <C>           <C>           <C>          <C>          <C>
  $5.13 - $7.00       29,000      2.0 years      $6.72         19,000       $6.57
      $7.13          182,000      9.9 years      $7.13          --           --
 $7.63 - $10.00      222,000      3.1 years      $9.74        114,000       $9.70
 $10.13 - $14.75     251,000      3.4 years     $11.94         56,000      $12.00
                     -------                                  -------
                     684,000      5.0 years      $9.72        189,000      $10.08
                     -------                                  -------
                     -------                                  -------
</TABLE>

      1995 NON-EMPLOYEE DIRECTOR PLAN: In 1995, the Company's Board of Directors
authorized, and in 1996, the Company's shareholders approved, a reserve of
250,000 shares of the Company's common stock for issuance to Non-Employee
Directors of the Company, pursuant to the 1995 Non-Employee Director Plan (the
"1995 Director Plan"). Options granted under the 1995 Director Plan vest on a
cumulative basis, with one third exercisable as of the date of grant and the
remainder becoming exercisable in equal installments on each of the first and
second anniversaries of the date of grant. Each option expires and is no longer
exercisable on the date ten years from its date of grant. Options to purchase
42,000 shares at $13.38 and 10,500 shares at $12.25 per share were granted
during 1995 and 1996, respectively. At December 31, 1997, there were 197,500
options available for grant under the 1995 Director Plan.

      The following table summarizes information about stock options outstanding
and exercisable at December 31, 1997:

<TABLE>
<CAPTION>
                             OPTIONS OUTSTANDING                OPTIONS EXERCISABLE
- -----------------------------------------------------------------------------------
                                  WEIGHTED-
                                    AVG.       WEIGHTED-                  WEIGHTED-
    RANGE OF                      REMAINING      AVG.                       AVG.
    EXERCISE         NUMBER      CONTRACTUAL   EXERCISE       NUMBER      EXERCISE
     PRICES        OUTSTANDING      LIFE         PRICE      EXERCISABLE     PRICE
- -----------------------------------------------------------------------------------
<S>                <C>           <C>           <C>          <C>           <C>
  $12.25-$13.38      52,500       7.7 years     $13.15        49,000       $13.21
</TABLE>

      ACCOUNTING FOR STOCK-BASED COMPENSATION: The Company adopted Financial
Accounting Standards Board Statement No. 123, "Accounting for Stock-Based
Compensation", in 1996. The Company has continued to measure compensation cost
for its stock-based compensation plans using the intrinsic value-based method of
accounting and, therefore, the new standard has had no effect on the Company's
operating results.

      Had the Company used the fair value-based method of accounting for its
1991 Stock Incentive Plan and 1995 Non-Employee Director Plan beginning with
options granted in 1995 and charged this compensation cost along with the value
of the shares granted through the Employee Stock Purchase Plan against income,
over the plans' vesting periods, based on the fair value of options at the date
of grant, net income (loss) and diluted earnings (loss) per share for 1997, 1996
and 1995 would have been as follows:

<TABLE>
<CAPTION>
                                        1997             1996            1995
- ----------------------------------------------------------------------------------
<S>                                    <C>             <C>              <C>
Net income (loss)
   As reported                         $1,327,000      $(567,000)       $3,296,000
   Pro forma                           $1,011,000      $(845,000)       $3,117,000

Diluted earnings (loss)
 per share
   As reported                         $     0.17      $   (0.07)       $     0.45
   Pro forma                           $     0.13      $   (0.11)       $     0.42
</TABLE>

      The pro forma information above includes stock options granted and stock
purchased under the Employee Stock Purchase Plan in 1995, 1996 and 1997.

      The fair value of each option grant was estimated on the date of grant
using the Black-Scholes option-pricing model for the 1991 Stock Incentive Plan
and the 1995 Non-Employee Director Plan. The assumptions for 1997, 1996 and 1995
were as follows:

                                      16
<PAGE>

<TABLE>
<CAPTION>
                        1997                    1996                    1995
- ------------------------------------------------------------------------------------
                    1991       1995        1991        1995        1991       1995
                  INCENTIVE  DIRECTOR    INCENTIVE   DIRECTOR    INCENTIVE  DIRECTOR
                    PLAN       PLAN        PLAN        PLAN        PLAN       PLAN
- ------------------------------------------------------------------------------------
<S>              <C>         <C>         <C>         <C>        <C>         <C>
Risk-free
  interest
  rates           5.8%-6.6%    6.2%      5.2%-6.8%     6.2%      6.2%-7.8%    6.6%
Expected life    4.3-8 years  8 years    4.3 years    8 years    4.3 years   8 years
Expected
  volatility         50%        50%         50%         50%         50%        50%
Expected
  dividends          0%         0%          0%          0%          0%         0%
</TABLE>

      WARRANTS: In connection with the completion of its initial public offering
of common shares in 1992, the Company granted to the representatives of the
underwriters warrants for 90,000 shares of common stock at an exercise price of
$6.60 per share. During 1997 and 1996, the Company issued 5,000 and 85,000
shares of common stock, respectively, pursuant to the exercise of these
warrants. At December 31, 1997, there are no outstanding warrants.

      EMPLOYEE STOCK PURCHASE PLAN: The AVECOR Cardiovascular Inc. Employee
Stock Purchase Plan ("Stock Purchase Plan"), which is available to substantially
all employees, enables eligible employees to contribute up to 10% of their wages
toward quarterly purchases of the Company's common stock at 85% of market value
on the first or last day of each calendar quarter, whichever had the lower stock
price. The Company has reserved 100,000 shares of common stock for issuance
under the Stock Purchase Plan. Employees purchased 34,000 shares at an average
price of $7.72 per share in 1997, 23,000 shares at an average price of $11.00
per share in 1996, and 18,000 shares at an average price of $10.17 per share in
1995. In 1997, the Company's Board of Directors authorized, subject to
shareholder approval, an additional 125,000 shares of common stock to be
reserved for issuance under the Stock Purchase Plan. At December 31, 1997, there
were no shares of common stock available for purchase under this plan.

      SHAREHOLDER RIGHTS PLAN: In June 1996, the Company adopted a shareholder
rights plan, pursuant to which the Company declared a dividend distribution of
one Preferred Share Purchase Right on each share of the Company's Common Stock
outstanding on August 2, 1996. Each Right entitles the holder to buy
one-thousandth of a share of the Company's Series A Junior Preferred Stock, or a
combination of securities and assets of equivalent value, at an exercise price
of $80.00, subject to adjustment. The description and terms of the Rights are
set forth in a Rights Agreement dated June 26, 1996, between the Company and
Norwest Bank Minnesota, N.A., as Rights Agent.


4. LONG-TERM DEBT:

In January 1997, the Company purchased a new corporate headquarters and
manufacturing facility for $9,650,000 and consolidated its former four separate
U.S. facilities. In connection with this purchase, the Company entered into a
$5,167,000 bank note payable agreement in January 1997 and, in addition,
utilizing restricted cash and investments, funded the remaining cost of the new
building.

      The bank note payable agreement bears interest at 8.11% and requires
monthly principal payments of $21,531, plus interest, through January 2002 with
the remaining principal and interest due February 2002. The bank note payable is
collateralized by the new corporate headquarters and manufacturing facility and,
among other things, requires the Company to meet certain ratios related to
leverage, debt service and cash flow. Additionally, the bank note payable
agreement prohibits the Company from distributing dividends to its shareholders.
The Company believes the fair value of this debt approximates its carrying value
at December 31, 1997.

      At December 31, 1997, remaining principal payments on the bank note
payable are as follows:

<TABLE>
<CAPTION>
          YEAR ENDING DECEMBER 31
- -------------------------------------------------------------------------
          <S>                                            <C>
            1998                                         $  258,000
            1999                                            258,000
            2000                                            258,000
            2001                                            258,000
            2002                                          3,920,000
                                                         ----------
                                                         $4,952,000
                                                         ----------
                                                         ----------
</TABLE>

5. COMMITMENTS

LEASES: In 1996 and years prior, the Company leased all of its facilities and
certain equipment pursuant to operating leases. The leases for the Company's
United States operating facilities expired in December 1996, at which time the
Company occupied its new corporate headquarters. The Company's facility near
Glasgow, Scotland is leased for a period of ten years ending in October 2003.
This lease agreement provides for adjustment of minimum rentals based upon
market rates in 1998 and requires minimum monthly rental payments plus real
estate taxes and applicable common facility operating expenses.

      Rent expense, including allocated real estate taxes and operating
expenses, under all rental agreements was $325,000, $725,000 and $596,000 for
the years ended December 31, 1997, 1996 and 1995, respectively.

      The following is a schedule of future minimum lease payments pursuant to
the terms of the non-cancellable leases for the Glasgow, Scotland facility
described above:

<TABLE>
<CAPTION>
          YEAR ENDING DECEMBER 31
- -------------------------------------------------------------------------
          <S>                                            <C>
            1998                                         $147,000
            1999                                          147,000
            2000                                          147,000
            2001                                          147,000
            2002                                          147,000
            2003                                          112,000
                                                         --------
                                                         $847,000
                                                         --------
                                                         --------
</TABLE>

      ROYALTY AGREEMENTS: SILICONE PRODUCTS -- In connection with the Company's
June 1991 acquisition of the Surgical Division of SCIMED Life Systems, Inc. (the
Predecessor Business), the Company entered into a royalty agreement with SCIMED.
The agreement required the Company to make payments to SCIMED primarily based on
net sales (as defined), through June 1996, of products previously manufactured
by the Predecessor Business as of the acquisition date. The Company incurred
royalties of $95,000 and $178,000 for the years ended December 31, 1996 and
1995, respectively, under this agreement.


                                      17
<PAGE>

      The agreement also provides for royalty payments should the Company
develop and sell new products (new generation products) using certain technology
embodied in product models developed by the Predecessor Business. This element
of the agreement expires in June 2001. The Company has not paid or incurred any
such royalties through December 31, 1997.

      AFFINITY BLOOD PUMP -- The Company also entered into a royalty agreement
in connection with the Company's acquisition of an exclusive license to market
the Affinity blood pump. This agreement requires the Company to make payments
based on net sales of the pump chamber (the disposable portion of the Affinity
blood pump system) and net profits of the pump console (the equipment portion of
the Affinity blood pump system) through August 2002. The term of the agreement
may be extended by the Company until the expiration of the last-to-expire of the
patents covered by this agreement or the useful life of the know-how (as
defined) licensed, whichever is longer. Under the terms of the royalty
agreement, the Company must pay minimum royalties each year. The Company's
royalties incurred of $55,000 for the year ended December 31, 1997 exceeded the
minimum royalty related to the first year of the royalty agreement.

      BIO-PASSIVE SURFACE -- The Company also has use of an exclusive license
allowing it to apply a bio-passive surface to its products. The agreement
requires the Company to make quarterly payments based on a percentage of net
sales of products utilizing the bio-passive surface. The Company can retain
exclusivity of the license if it pays minimum annual royalties. The Company
incurred royalties of $35,000 for the year ended December 31, 1997 under this
agreement.

      PRODUCT LIABILITY: The Company is self-insured on product liability claims
below a certain dollar limitation and maintains product liability insurance
above this limitation per claim and in the aggregate.

      CONFIDENTIALITY AND NON-COMPETE AGREEMENTS: The Company has entered into
confidentiality and non-compete agreements with certain employees. If any of
these employees are terminated, the Company is conditionally required to pay the
employee 75% of his or her base salary, as defined, during the non-compete
period (one to two years) if the employee remains unemployed during this period.


6. INDUSTRY SEGMENT INFORMATION:

Since its inception, the Company has operated in the single industry segment of
developing, manufacturing and marketing medical devices.

      The Company distributes its products through its direct sales force and
independent sales representatives in the United States, Canada, the United
Kingdom and France. Additionally, the Company distributes its products through
foreign independent distributors, primarily in Europe and Asia, who then market
the products directly to medical institutions. During 1997, the Company
terminated agreements with its last remaining domestic distributor and its only
Canadian distributor. A direct sales force now serves the markets formerly
assigned to these distributors. Management does not believe the Company is
significantly dependent upon any one distributor for the ultimate sale of
products to medical institutions. Sales to distributors accounting for 10% or
more of the Company's net sales were as follows:

<TABLE>
<CAPTION>
                                  1997                1996             1995
- --------------------------------------------------------------------------------
<S>                               <C>                 <C>             <C>
Distributor #1                     (1)                 (1)            $3,503,000
</TABLE>

(1) Accounted for less than 10% of the Company's net sales.

      Total export sales from the U.S. to unaffiliated entities (primarily to
Europe and payable in U.S. dollars) were $4,952,000, $4,912,000 and $3,480,000,
respectively, for the years ended December 31, 1997, 1996 and 1995.

      At December 31, 1997 and 1996, consolidated accounts receivable include
$4,366,000 and $3,738,000, respectively, due from customers located outside of
the U.S.

<TABLE>
<CAPTION>
                                            YEAR ENDED DECEMBER 31
- ----------------------------------------------------------------------------------
                                   AVECOR              AVECOR
                               CARDIOVASCULAR      CARDIOVASCULAR
                                    INC.                LTD.         CONSOLIDATED
- -----------------------------------------------------------------------------------
<S>                            <C>                 <C>               <C>
1997
Sales to unaffiliated
     customers                   $32,634,000          $14,230,000      $46,864,000
Operating income                   1,640,000              320,000        1,960,000
Identifiable assets               36,705,000            6,054,000       42,759,000

1996
Sales to unaffiliated
     customers                    31,290,000           13,111,000       44,401,000
Operating income (loss)           (1,738,000)             412,000       (1,326,000)
Identifiable assets               30,699,000            6,462,000       37,161,000

1995
Sales to unaffiliated
     customers                    22,638,000           10,702,000       33,340,000
Operating income                   2,806,000              684,000        3,490,000
Identifiable assets               27,902,000            5,617,000       33,519,000
</TABLE>

      During the years ended December 31, 1997, 1996, and 1995, AVECOR
Cardiovascular Ltd. made capital expenditures of approximately $393,000,
$146,000 and $57,000, respectively.

      In June 1997, the Financial Accounting Standards Board issued Statement
131, "Disclosures About Segments of an Enterprise and Related Information," a
new standard of reporting information about operating or business segments in
financial statements. The new standard will be effective for the Company's
annual financial statements in 1998. Although the Company has not specifically
evaluated what impact, if any, this new standard will have on the Company's
current reporting of operating and business segments, the Company believes it
will continue reporting as one operating and business segment.


7. RETIREMENT SAVINGS PLAN:

The AVECOR Cardiovascular Inc. Retirement Savings Plan (the "Savings Plan") is a
profit sharing plan which provides for voluntary pre-tax employee contributions
and discretionary employer matching and profit sharing contributions and is
intended to satisfy the requirements of Section 401(k) of the Internal Revenue
Code. Generally, all employees of the Company who are over 21 years of age and
who have completed one year of service with the Company are eligible to
participate in the Savings Plan. The Company did not make any contributions to 
the Savings Plan in 1997, and 


                                      18
<PAGE>

made contributions of $23,000 and $10,000 to the Savings Plan related to 1996 
and 1995, respectively.

8. INCOME TAXES:

The components of the Company's income tax provision (benefit) are as follows:

<TABLE>
<CAPTION>

                                              YEAR ENDED DECEMBER 31
                                     1997                1996            1995
- ---------------------------------------------------------------------------------
<S>                                 <C>                <C>               <C>
Current
  U.S. federal                      $585,000            $484,000         $875,000
  U.S. state                          15,000              57,000            5,000
  International                      223,000             292,000          270,000
Deferred                             (78,000)           (867,000)        (370,000)
                                    ---------------------------------------------
                                    $745,000           $ (34,000)        $780,000
                                    ---------------------------------------------
                                    ---------------------------------------------
</TABLE>

      The variance of the 1997 and 1996 effective tax rate from the U.S.
statutory tax rate was primarily due to losses incurred by the Company's French
subsidiary for which no tax benefit has been recorded because of the uncertainty
of their realization, offset by the generation of research and experimentation
credits. The variance of the 1995 effective tax rate from the U.S. statutory tax
rate was primarily due to utilization of $1,730,000 of net operating loss
carryforwards ("NOLs") and $26,000 of state research and experimentation
credits.

      Components of the Company's deferred tax assets and liabilities are as
follows:

<TABLE>
<CAPTION>
                                                          DECEMBER 31
                                                      1997           1996
- ---------------------------------------------------------------------------
<S>                                               <C>            <C>
   Deferred tax assets:
      Patent settlement                           $       --     $  418,000
      Research and experimentation
         credits                                     881,000        560,000
      French subsidiary NOL
         carryforwards                               226,000        119,000
      AMT carryforwards                              195,000             --
      Other, primarily certain
         accrued expenses                            239,000        296,000
      Valuation allowance                           (226,000)      (119,000)
                                                  -------------------------
                                                   1,315,000      1,274,000
   Deferred tax liabilities:
      Depreciation                                        --        (37,000)
                                                  -------------------------
   Net deferred tax assets                        $1,315,000     $1,237,000
                                                  -------------------------
                                                  -------------------------
</TABLE>

      The Company has established a valuation allowance to offset its deferred
tax asset related to its French subsidiary's NOL carryforwards due to the
uncertainty of their realization. The NOL carryforwards expire from 2000 to
2002. The Company expects its future taxable income will be sufficient to
realize its other deferred tax assets, therefore there is no valuation allowance
offsetting them.

      Available research and experimentation credits at December 31, 1997,
represent federal and state amounts of approximately $632,000 and $249,000,
respectively, with expiration dates ranging from 2007 to 2012. The Company's AMT
credit carryforwards do not expire.

      Domestic and international components of income (loss) before income taxes
are as follows:

<TABLE>
<CAPTION>

                                               YEAR ENDED DECEMBER 31
                                      1997              1996              1995
- ----------------------------------------------------------------------------------
<S>                                 <C>              <C>                <C>
AVECOR Cardiovascular Inc.          $1,663,000       $(1,088,000)       $3,351,000
AVECOR Cardiovascular Ltd.             409,000           487,000           725,000
                                    ----------------------------------------------
                                    $2,072,000       $  (601,000)       $4,076,000
                                    ----------------------------------------------
                                    ----------------------------------------------
</TABLE>

      Undistributed earnings of the Company's foreign subsidiary are
indefinitely reinvested in foreign operations. Accordingly, no provision has
been made for income taxes that might be payable upon remittance.


9. PATENT MATTERS:

      In March 1997, the Company filed suit in U.S. District Court for the
District of Minnesota, seeking to invalidate a newly issued U.S. patent held by
a competing manufacturer of blood oxygenators and other medical devices, and
requesting a determination that the Company's Affinity oxygenator does not
infringe the competitor's patent. The Company filed suit in response to a
December 1996 letter from the competitor, alleging that the Affinity oxygenator
infringes certain claims under the competitor's patent, and requesting
discussion regarding a possible license agreement. The Company reviewed the
subject patent and concluded, based on an opinion from its patent counsel, that
none of the claims in the patent are infringed by the Affinity oxygenator, and
that the patent is, in any event, invalid. On October 6, 1997, the Magistrate
Judge of the United States District Court vacated a previous order and granted a
stay in the proceedings, including the suspension of discovery, pending the
outcome of the competitor's request for re-issuance of the aforementioned
patent. The expense and effort potentially required to bring this action, as
well as the outcome of any counterclaim successfully brought against the Company
by the competitor, could have a material adverse effect on the Company's
business, financial condition and results of operations.

      In 1996, the Company reached an agreement with COBE Laboratories Inc.
(COBE) to settle COBE's patent suit against the Company. The terms of the
settlement with COBE provided for the Company to make net payments totaling
$2,200,000. Two net payments of $1,100,000 were made in August 1996 and August
1997, respectively. The net settlement costs of $2,200,000 and the associated
legal costs were recognized as a charge to operations in 1996.


10. QUARTERLY DATA (UNAUDITED):

Quarterly net sales, gross profit, net income (loss) and net income (loss) per
share data are presented on page 20.


11. NEW ACCOUNTING STANDARD:

In June 1997, the Financial Accounting Standards Board issued Statement 130,
"Reporting Comprehensive Income," a new standard requiring the reporting and
display of "comprehensive income" (defined as the change in equity of a business
enterprise during a period from sources other than those resulting from
investments by owners and distributors to owners) and its components in a full
set of general purpose financial statements. The new standard will be effective
for the Company's annual financial statements in 1998. The Company's cumulative
translation adjustment is considered a component of "comprehensive income,"
however the Company has not evaluated what other components of its changes in
equity would be components of "comprehensive income."


                                      19
<PAGE>

REPORT OF INDEPENDENT ACCOUNTANTS 
To the Shareholders and Board of Directors of
AVECOR Cardiovascular Inc.:

We have audited the accompanying consolidated balance sheets of AVECOR
Cardiovascular Inc. as of December 31, 1997 and 1996, and the related
consolidated statements of operations, changes in shareholders' equity and cash
flows for each of the three years in the period ended December 31, 1997. These
financial statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these 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 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 financial statements referred to above present fairly,
in all material respects, the consolidated financial position of AVECOR
Cardiovascular Inc. as of December 31, 1997 and 1996, and the consolidated
results of their operations and their cash flows for each of the three years in
the period ended December 31, 1997, in conformity with generally accepted
accounting principles.


/s/ Coopers & Lybrand L.L.P

MINNEAPOLIS, MINNESOTA
MARCH 16, 1998


QUARTERLY OPERATING DATA
The following table sets forth certain unaudited operating data for the four
quarters in 1997 and 1996. In the opinion of management, the data include all
adjustments, consisting of only normal recurring adjustments, necessary to
present fairly the information set forth therein.

<TABLE>
<CAPTION>
                                       FIRST        SECOND     THIRD        FOURTH
(UNAUDITED)                           QUARTER      QUARTER    QUARTER       QUARTER
- ------------------------------------------------------------------------------------
(IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                   <C>          <C>        <C>         <C>
1997
Net sales                             $12,043      $11,961     $11,273    $11,587
Gross profit                            4,983        5,061       4,785      4,461
Net income                                387          403         365        172
Diluted earnings per share               $.05         $.05        $.05       $.02

1996
Net sales                             $10,293      $11,145     $11,315    $11,648
Gross profit                            4,342        4,702       4,534      4,837
Net income (loss)                         211       (1,876)        628        470
Diluted earnings (loss)
  per share                              $.03        $(.24)       $.08       $.06
</TABLE>

The summation of quarterly diluted earnings (loss) per share may not equate to
the calculation for the year as quarterly calculations are prepared on a
discrete basis. All earnings per share calculations are presented per the
definition of "diluted earnings per share" from FASB Statement No. 128.


COMMON STOCK INFORMATION
The Company's Common Stock is currently traded on the Nasdaq National Market
under the symbol AVEC. The quotations set forth below reflect the high and low
closing prices for the Company's Common Stock on the Nasdaq National Market for
each of the identified periods, excluding adjustments for retail mark-ups,
mark-downs or commissions.

<TABLE>
<CAPTION>

1997                                                          HIGH           LOW
- -----------------------------------------------------------------------------------
<S>                                                          <C>           <C>
First Quarter                                                $13 3/8        $10 3/4
Second Quarter                                                12 1/4          8 3/4
Third Quarter                                                 12 3/8          9 7/8
Fourth Quarter                                                12              6

1996                                                          HIGH           LOW
- ------------------------------------------------------------------------------------
First Quarter                                                $17 1/4        $10 1/2
Second Quarter                                                14 1/8         12
Third Quarter                                                 15 7/8         11 5/8
Fourth Quarter                                                14 7/8         10 7/8
</TABLE>

SHAREHOLDERS.  As of March 1, 1998, there were approximately 300 holders of 
record and approximately 3,800 beneficial shareholders of the Company's 
Common Stock.

DIVIDENDS. The Company has not declared or paid any cash dividends on its Common
Stock since its inception, and the Board of Directors currently intends to
retain all earnings for use in the business for the foreseeable future. Under
terms of the note payable used to finance the Company's U.S. manufacturing
facility in January 1997, no dividends may be paid to shareholders while the
note payable is outstanding. The bank note payable will fully mature in February
2002.


                                      20
<PAGE>

<TABLE>
<CAPTION>
<S>                                                                                                     <C>
CORPORATE INFORMATION                                                                                   AVECOR CARDIOVASCULAR, INC.


CORPORATE HEADQUARTERS
AVECOR Cardiovascular Inc.
7611 Northland Drive
Minneapolis, Minnesota 55428
(612) 391-9000


FORM 10-K
Shareholders may receive a copy of the Company's Annual Report on Form 10-K, as
filed with the Securities and Exchange Commission, without charge by writing to:
Investor Relations
AVECOR Cardiovascular Inc.
7611 Northland Drive
Minneapolis, Minnesota 55428


STOCK TRANSFER AGENT
For change of name, address, or to replace lost stock certificates, contact:
Norwest Bank Minnesota, N.A.
P.O. Box 738
161 N. Concord Exchange
South St. Paul, Minnesota 55075-0738
(612) 450-4064


INDEPENDENT ACCOUNTANTS
Coopers & Lybrand L.L.P.
Minneapolis, Minnesota


GENERAL COUNSEL
Oppenheimer Wolff & Donnelly LLP
Minneapolis, Minnesota


INVESTOR RELATIONS COUNSEL
Swenson NHB Investor Relations
Minneapolis, Minnesota
(612) 371-0000


ANNUAL MEETING
The Annual Meeting of Shareholders will be held on Thursday, May 7, 1998, at
3:30 p.m. at the Minneapolis Marriott City Center Hotel, 30 South Seventh
Street, Minneapolis, Minnesota.


DIRECTORS

ANTHONY BADOLATO
Chairman of the Board and
Chief Executive Officer

EDWARD E. STRICKLAND
Independent Financial Consultant

DAVID W. STASSEN
President
Sulzer Spine-Tech, Inc.

J. GORDON WRIGHT
Founder and Managing Director
Caledonian Medical Limited


OFFICERS

ANTHONY BADOLATO
Chairman of the Board and
Chief Executive Officer

WILLIAM S. HAWORTH
Vice President - Engineering

GREGORY J. MELSEN
Vice President - Finance, Treasurer and
Chief Financial Officer

ALLAN R. SECK
Vice President - Marketing and Sales

</TABLE>

<PAGE>












                           AVECOR CARDIOVASCULAR INC.
                               7611 NORTHLAND DRIVE
                           MINNEAPOLIS, MINNESOTA 55428
                                  (612) 391-9000



<PAGE>
                                                                  EXHIBIT 23.1


CONSENT OF INDEPENDENT ACCOUNTANTS

We consent to the incorporation by reference in the registration statements of
AVECOR Cardiovascular Inc. on Form S-8 (File Nos. 33-55184, 33-55166, 33-90460,
333-29143 and 333-29145) of our reports dated March 16, 1998, or our audits of
the consolidated financial statements and financial statement schedule of AVECOR
Cardiovascular Inc. as of December 31, 1997 and 1996, and for the years ended
December 31, 1997, 1996 and 1995, which reports are included or incorporated by
reference in this Annual Report on Form 10-K.  We also consent to the reference
to our firm as "experts" in the above-mentioned registration statements on Form
S-8.


                          /s/ COOPERS & LYBRAND L.L.P.

                          COOPERS & LYBRAND L.L.P.


Minneapolis, Minnesota
March 30, 1998


<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                       1,215,000
<SECURITIES>                                 3,727,000
<RECEIVABLES>                                8,611,000
<ALLOWANCES>                                 (334,000)
<INVENTORY>                                 10,634,000
<CURRENT-ASSETS>                            25,498,000
<PP&E>                                      22,785,000
<DEPRECIATION>                             (6,096,000)
<TOTAL-ASSETS>                              42,759,000
<CURRENT-LIABILITIES>                        5,294,000
<BONDS>                                      4,694,000
                           80,000
                                          0
<COMMON>                                             0
<OTHER-SE>                                  32,538,000
<TOTAL-LIABILITY-AND-EQUITY>                42,759,000
<SALES>                                     46,864,000
<TOTAL-REVENUES>                            46,864,000
<CGS>                                       27,574,000
<TOTAL-COSTS>                               27,574,000
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             383,000
<INCOME-PRETAX>                              2,072,000
<INCOME-TAX>                                   745,000
<INCOME-CONTINUING>                          1,327,000
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 1,327,000
<EPS-PRIMARY>                                      .17
<EPS-DILUTED>                                      .17
        

</TABLE>


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