BIOCIRCUITS CORP
424B3, 1997-01-30
IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES
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<PAGE>

                                     PROSPECTUS

                                  1,588,677 SHARES

                              BIOCIRCUITS CORPORATION
                                          
                                ___________________
                                          
                                    COMMON STOCK
                                ___________________

     This Prospectus relates to a total of 1,588,677 shares of Common Stock 
(the "Shares"), with a par value of $0.001 (the "Common Stock") of 
Biocircuits Corporation (the "Company") which are being offered and sold by 
certain stockholders of the Company (the "Selling Securityholders").  Of such 
Shares (i) 1,111,727 were issued by the Company in connection with the 
conversion of a secured promissory note (the "Note") into Common Stock of the 
Company on December 13, 1996 (the "Conversion"), (ii) 222,345 are issuable 
pursuant to the exercise of a warrant which was issued in connection with the 
Conversion (the "Beckman Warrant"), (iii) 250,000 are issuable pursuant to 
the exercise of a warrant which was issued in connection with a manufacturing 
arrangement (the "Kollsman Warrant") and (iv) 4,605 are issuable pursuant to 
the exercise of a warrant issued in connection with a standby letter of 
credit issued on August 6, 1996 (the "Credit Warrant"). The Beckman Warrant, 
the Kollsman Warrant and the Credit Warrant are referred to herein 
collectively as the "Warrants".

     The Shares may be offered by the Selling Securityholders from time to 
time in transactions on the Nasdaq National Market System, in privately 
negotiated transactions or a combination of such methods of sale, at fixed 
prices that may be changed, at market prices prevailing at the time of sale, 
at prices related to such prevailing market prices or at negotiated prices.  
The Selling Securityholders may effect such transactions by selling the 
Shares to or through broker-dealers, and such broker-dealers may receive 
compensation in the form of discounts, concessions or commissions from the 
Selling Securityholders or the purchasers of the Shares for whom such  
broker-dealers may act as agent or to whom they sell as principal or both 
(which compensation to a particular broker-dealer might be in excess of 
customary commissions).  See "Selling Securityholders" and "Plan of 
Distribution."

     The Company will not receive any of the proceeds from the sale of the 
Shares by the Selling Securityholders hereof.  See "Plan of Distribution."

     The Selling Securityholders, directly or through agents, dealers or 
underwriters, may sell the Shares offered hereby from time to time on terms 
to be determined at the time of sale.  The Company's Common Stock is traded 
on the Nasdaq National Market System under the symbol BIOC.  The last 
reported sales price on the Company's Common Stock on the Nasdaq National 
Market on January 13, 1996 was $3.31 per share.
                             ____________________

              THE SHARES OFFERED HEREBY INVOLVE A HIGH DEGREE OF RISK.
                           SEE "RISK FACTORS" ON PAGE 7.
                             _____________________

  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE
   SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
    COMMISSION NOR HAS THE SECURITIES AND EXCHANGE COMMISSION
       OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
          ACCURACY OR ADEQUACY OF THIS PROSPECTUS.  ANY
               REPRESENTATION TO THE CONTRARY IS A
                        CRIMINAL OFFENSE.

     No underwriting commissions or discounts will be paid by the Company in 
connection with this offering.  Estimated expenses payable by the Company in 
connection with this offering are $21,565.00.  The aggregate proceeds to 
the Selling Securityholders from the sale of the Shares will be the purchase 
price of the Shares sold less the aggregate agents' commissions and 
underwriters' discounts, if any, and other expenses of issuance and 
distribution not borne by the Company.  See "Plan of Distribution."

     The Selling Securityholders and any broker-dealers, agents or 
underwriters that participate with the Selling Securityholders in the 
distribution of the Shares may be deemed to be "underwriters" within the 
meaning of the Securities Act of 1933, as amended (the "Act"), and any 
commission received by them and any profit on the resale of the Shares 
purchased by them may be deemed to be underwriting commissions or discounts 
under the Act.  The Company has agreed to indemnify the Selling 
Securityholders and certain other persons against certain liabilities, 
including liabilities under the Act.
   
        The date of this Prospectus is January 30, 1997.
    
<PAGE>

    No person is authorized in connection with any offering made hereby to 
give any information or to make any representation not contained or 
incorporated by reference in this Prospectus, and any information or 
representation not contained or incorporated herein must not be relied upon 
as having been authorized by the Company. This Prospectus does not constitute 
an offer to sell, or a solicitation of an offer to buy, by any person in any 
jurisdiction in which it is unlawful for such person to make such offer or 
solicitation. Neither the delivery of this Prospectus at any time nor any 
sale made hereunder shall, under any circumstances, imply that the 
information herein is correct as of any date subsequent to the date hereof.

                       AVAILABLE INFORMATION

    The Company is subject to the informational reporting requirements of the 
Securities Exchange Act of 1934, as amended (the "Exchange Act"), and in 
accordance therewith, files reports, proxy statements and other information 
with the Securities and Exchange Commission (the "Commission"). Such reports, 
proxy statements and other information can be inspected and copied at the 
public reference facilities maintained by the Commission at Room 1024, 450 
Fifth Street, N.W., Judiciary Plaza, Washington, D.C. 20549, and at the 
Commission's following Regional Offices: Chicago Regional Office, Citicorp 
Center, 500 West Madison Street, Suite 1400, Chicago, Illinois 60661-2511; 
and New York Regional Office, 7 World Trade Center, Suite 1300, New York, New 
York 10048. Copies of such material can be obtained at prescribed rates from 
the Public Reference Section of the Commission at 450 Fifth Street, N.W., 
Judiciary Plaza, Washington, D.C. 20549. The Commission maintains a Web site 
that contains reports, proxy and information statements and other information 
regarding registrants that file electronically with the Commission. The 
address of such Web site is http://www.sec.gov. The Company's Common Stock is 
quoted on the Nasdaq National Market System, and such reports, proxy 
statements and other information can also be inspected at the offices of The 
Nasdaq Operations, 1735 K Street, N.W., Washington, D.C. 20006.

    Additional information regarding the Company and the Shares offered 
hereby is contained in the Registration Statement on Form S-3 and the 
exhibits thereto filed with the Commission under the Securities Act of 1933, 
as amended (the "Securities Act"). This Prospectus does not contain all of 
the information contained in such Registration Statement and the exhibits 
thereto. Statements contained in this Prospectus regarding the contents of 
any document or contract may be incomplete and, in each instance, reference 
is made to the copy of such contract or document filed as an exhibit to the 
Registration Statement. For further information pertaining to the Company and 
the Shares, reference is made to the Registration Statement and the exhibits 
thereto, which may be inspected without charge at, and copies thereof may be 
obtained at prescribed rates from, the office of the Commission at 450 Fifth 
Street, N.W., Judiciary Plaza, Washington, D.C. 20549.

          INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

    The following documents filed by the Company with the Commission pursuant 
to the Exchange Act are by this reference incorporated in and made a part of 
this Prospectus:

(1) The Annual Report on Form 10-K for the fiscal year ended December 31, 1995 
    filed on March 31, 1996, including all matters incorporated by reference 
    therein;

(2) The Proxy Statement filed on April 18, 1996, including all matters 
    incorporated by reference therein;

(3) The Quarterly Report on Form 10-Q for the quarterly period ended March 31, 
    1996, filed on May 14, 1996, including all matters incorporated by 
    reference therein;

(4) The Quarterly Report on Form 10-Q for the quarterly period ended June 30, 
    1996, filed on August 13, 1996, including all matters incorporated by 
    reference therein; and

(5) The Quarterly Report on Form 10-Q for the quarterly period ended 
    September 30, 1996, filed on November 14, 1996, including all matters 
    incorporated by reference therein.


                                         3.


<PAGE>

    All documents filed by the Company pursuant to Section 13(a), 13(c), 14 
or 15(d) of the Exchange Act after the date of this Prospectus and prior to 
the termination of the offering shall be deemed to be incorporated by 
reference herein and to be a part of this Prospectus from the date of filing 
of such documents. Any statement contained in a document incorporated or 
deemed to be incorporated by reference herein shall be deemed to be modified 
or superseded for purposes of this Prospectus to the extent that a statement 
contained herein or in any other subsequently filed document which also is or 
is deemed to be incorporated by reference herein modifies or supersedes such 
statement. Any such statement so modified or superseded shall not be deemed, 
except as so modified or superseded, to constitute a part of this Prospectus.

    Copies of all documents which are incorporated herein by reference (not 
including the exhibits to such documents, unless such exhibits are 
specifically incorporated by reference into such documents or into this 
Prospectus) will be provided without charge to each person, including any 
beneficial owner to whom this Prospectus is delivered, upon a written or oral 
request to Biocircuits Corporation, Attention:  Donald Hawthorne, 1324 
Chesapeake Terrace, Sunnyvale, California, 94089, telephone number (408) 
745-1961.

                           ____________________



                                     4.

<PAGE>

                              THE COMPANY

    THE FOLLOWING SUMMARY IS QUALIFIED IN ITS ENTIRETY BY THE MORE DETAILED 
INFORMATION AND FINANCIAL STATEMENTS INCORPORATED BY REFERENCE IN THIS 
PROSPECTUS

    Biocircuits was founded in 1989 to develop new immunodiagnostic testing 
systems. Immunodiagnostic tests, or "assays," are performed on samples of 
bodily fluids to diagnose a variety of infectious diseases and other 
conditions such as endocrine dysfunctions, and to conduct therapeutic drug 
monitoring. Immunodiagnostic tests utilize biological reagents, such as 
antibodies, and an instrument to detect the presence of a substance of 
interest, or "analyte," such as a virus or hormone.

    The Company's IOS point-of-care immunodiagnostic testing system consists 
of a compact, inexpensive instrument and disposable test cartridges that can 
be operated by a user with no special skills or training. The system enables 
users to perform tests at many locations, including physicians' offices, 
ambulatory clinics and small clinical laboratories. In the first quarter of 
1996, the Company began marketing its IOS system with cartridges capable of 
performing T4 and T Uptake tests, two of the most commonly requested 
immunodiagnostic tests for assessing thyroid function.  In September 
1996, the Company announced clearance from the United States Food and Drug 
Administration (the "FDA") to market a qualitative serum pregnancy assay, a 
test designed to allow physicians to perform this common pregnancy test in 
their offices during the patient visit where they can provide more immediate 
pre-natal care to patients.  In December 1996, the Company announced FDA 
clearance to market a quantitative hCG assay, a test to track the progress of 
early pregnancies.  Also in December 1996, the Company launched its Thyroid 
Stimulating Hormone ("TSH") assay on a second generation cartridge. The TSH 
assay is a test to assess thyroid function. The second generation cartridge 
will be required for the market launch of all new assays.  In addition, 
existing assays will be converted to the new cartridge in the near future.

    Biocircuits is currently developing three additional assays: a prostate 
specific antigen ("PSA") test for management of prostate cancer patients, a 
Digoxin test for monitoring the therapeutic usage of this drug in the 
treatment of heart disease and a Free T4 test for diagnosing true clinical 
thyroid status. The Company plans to continue to develop additional 
immunodiagnostic assays commonly requested by office-based physicians.

    The Company believes that its IOS system is the first low-cost, 
commercially available product which permits a physician to perform 
immunodiagnostic tests at the point of patient care.  Performing tests with 
current immunodiagnostic testing systems is time consuming, expensive and 
requires multiple steps and skilled technicians.  The Company believes that 
the IOS system reduces the cost of immunodiagnostic testing by providing test 
results more rapidly than other current testing procedures.

    Biocircuits is targeting the approximately 41,000 small- to medium-sized 
physician office practices and free-standing alternate site laboratories 
which are licensed under the Clinical Laboratories Improvement Act of 1967 
and Amendments of 1988 ("CLIA") for high or moderate complexity testing.  
Most of these sites do not currently have an immunodiagnostic testing 
capability.  The IOS system is approved for moderately complex testing.

    To perform a test, the operator inserts the test cartridge into the IOS 
instrument, which then reads the relevant assay information contained on the 
cartridge's bar code.  The cartridge is then partially released from the 
instrument, enabling the operator to place the specimen (blood, urine or 
other samples) into one to two wells in the cartridge, depending on the test. 
The sample automatically flows to the test zone, where it produces a signal 
that the instrument uses to determine the test results.  The IOS instrument 
provides a liquid crystal display and a printed output in approximately 20 to 
35 minutes, although the time varies by test. Receiving results within this 
time frame enables the doctor to make a treatment decision before the patient 
leaves the office, facilitating earlier treatment and obviating the need for 
an additional visit or telephone call.

    Biocircuits has developed significant knowledge about lipid/polymer 
biomaterials in the past seven years that the Company believes could be 
useful in other diagnostic system applications. In August 1995, Biocircuits 
entered into an agreement with Beckman Instruments, Inc. ("Beckman") and 
received $3,500,000 in the form of the Note in exchange for granting Beckman 
options for licensing and marketing rights to certain testing applications 
using the Company's lipid-polymer technology.  Pursuant to the terms of the 
agreement, Biocircuits completed a feasibility study in August 1996.  Because 
Beckman subsequently elected not to exercise its development license option, 
Biocircuits regained full rights to the lipid-polymer technology, including 
all improvements made during the feasibility study. In connection with the 
Conversion, Beckman elected to convert the Note into the Company's 
Common Stock and the Beckman Warrant. Biocircuits will continue its internal 
efforts to develop further the lipid-polymer technology and will also look 
for licensing partners.  The Company believes the lipid-polymer technology 
could be used in a next generation IOS system.

                                     5.

<PAGE>

                            THE OFFERING 

Shares offered  . . . . . . . . . . .  Up to 1,588,677 Shares, all of which 
                                       are being offered by the Selling 
                                       Securityholders.(1)
 
Use of Proceeds . . . . . . . . . . .  The Company will not receive any of 
                                       the proceeds from the sale of the 
                                       Shares by the Selling Securityholders. 
                                       The net proceeds from the exercise of 
                                       the Warrants received by the Company 
                                       will be considered uncommitted funds 
                                       that may be used by the Company for 
                                       general corporate purposes, including 
                                       sales and marketing and research and 
                                       development.

Nasdaq Symbol   . . . . . . . . . . .  BIOC.


(1) (i) 1,111,727 were issued by the Company in connection with the 
    Conversion, (ii) 222,345 are issuable pursuant to the exercise of the 
    Beckman Warrant, (iii) 250,000 are issuable pursuant to the exercise 
    of the Kollsman Warrant and (iv) 4,605 are issuable pursuant to the 
    Credit Warrant.  Assumes the exercise of all of the Warrants.
 
Biocircuits Corporation and IOS are registered trademarks of the Company.


                                        6.


<PAGE>


                           RISK FACTORS

     THE FOLLOWING FACTORS SHOULD BE CONSIDERED CAREFULLY WITH THE
INFORMATION PROVIDED ELSEWHERE IN THIS PROSPECTUS IN EVALUATING AN
INVESTMENT IN THE SHARES OFFERED HEREBY.  

       THIS PROSPECTUS CONTAINS FORWARD-LOOKING STATEMENTS WHICH
INVOLVE RISKS AND UNCERTAINTIES.  THE COMPANY'S ACTUAL RESULTS COULD
DIFFER MATERIALLY FROM THOSE ANTICIPATED IN THESE FORWARD-LOOKING
STATEMENTS AS A RESULT OF CERTAIN FACTORS, INCLUDING THOSE SET FORTH IN
THE FOLLOWING RISK FACTORS AND ELSEWHERE IN THIS PROSPECTUS.

DEVELOPMENT STAGE COMPANY; PRODUCTS UNDER DEVELOPMENT.

       Biocircuits was founded in 1989 and is a development stage company.  To 
achieve profitable operations, the Company, alone or with others, must, among 
other things, successfully develop, obtain regulatory approval for, introduce 
and market its current and potential products.  The time frame necessary to 
develop the Company's diagnostic instruments and tests is uncertain.  The 
Company has experienced delays in the scheduled completion of its IOS 
point-of-care instrument and test cartridges, and there can be no assurance 
that further product development delays will not occur in the future. 

       The Company's first sale and shipment of its IOS system, with 
cartridges capable of performing two of the most commonly requested 
immunodiagnostic tests, T4 and T Uptake, occurred in March 1996.  In 
September 1996, the Company received FDA clearance to market a qualitative 
serum pregnancy assay. The Company received clearances from the FDA for a TSH 
assay in November 1996 and a quantitative hCG assay in December 1996.  
Biocircuits is currently developing three additional assays: a PSA test, a 
Digoxin test, and a Free T4 test.  In December 1996, the Company launched its 
TSH assay on a second generation cartridge.  The second generation cartridge 
will be required for the market launch of all new assays.  In addition, 
existing assays will be converted to the new cartridge in the near future.  
The Company does not expect to realize any significant revenue from related 
instrument sales until at least the second quarter of 1997.

       There can be no assurance that the IOS point-of-care system and tests 
will perform in accordance with the Company's specifications, that the 
Company will be able to develop successfully or obtain regulatory clearance 
for additional tests or any other future products, that the second generation 
cartridge will perform as planned, that any of the Company's products can be 
manufactured in sufficient quantity, at acceptable cost and with appropriate 
quality, or that any products, if and when approved, can be successfully 
marketed.  Failure to meet one or more of these challenges could have a 
material adverse effect on the Company.

UNCERTAIN MARKET ACCEPTANCE OF POINT-OF-CARE PRODUCT

      Substantially all immunodiagnostic testing currently is performed at 
large clinical laboratories rather than the point-of-care site.  There can be 
no assurance that the Company will be successful in developing and 
penetrating the point-of-care market for immunodiagnostic testing.  In order 
to be successful, the Company must expand its existing sales force of 6 sales 
representatives to between 12 and 20 sales representatives and further 
develop its relationships with distributors which currently supply a 
substantial portion of medical and test products to physicians. The selling 
process typically requires the Company's sales force to work closely with 
distributors, generate qualified physician leads and perform demonstrations 
for the IOS system in physicians' offices.  The selling process can be 
time-consuming and there can be no assurance that the Company will be 
successful in marketing the IOS system, that the rate of sales growth will 
meet expectations or that the marketing programs of the Company will achieve 
the desired results.  To date, the number of instrument sales to distributors 
and placements in physicians' offices have been significantly less than the 
Company's initial expectations.

                                        7.

<PAGE>


       In general, market acceptance of the Company's initial point-of-care 
system will depend upon the Company's ability to demonstrate the accuracy and 
value of its system and to persuade physicians to perform the Company's 
initial tests in their own facilities rather than send those tests to 
clinical laboratories.  More specifically, in order for the Company to have 
success in penetrating the point-of-care immunodiagnostic market and to 
achieve significant sales of IOS systems and test cartridges, the Company 
believes it will need to expand its menu of tests beyond the T4 and T Uptake 
tests.  The Company believes that a TSH test may be a key element in 
penetrating the physicians' office market.  There can be no assurance that 
the TSH test will have the desired impact in increasing the market acceptance 
of the Company's IOS system.

LACK OF MARKETING EXPERIENCE; INTERNATIONAL SALES

       The Company plans to target the estimated 41,000 physician practices 
and alternate site laboratories that are licensed under the Clinical 
Laboratories Improvement Act of 1967 and Amendments of 1988 (CLIA) for high 
or moderate complexity testing, most of which currently do not have an 
immunodiagnostic testing capability.  The Company plans to market its IOS 
point-of-care system to physicians' offices and alternative site laboratories 
through distributors supported by its own sales force in the United States 
and through distributors and marketing partners outside the United States.  
The Company has entered into agreements with medical supply distributors with 
distribution sites throughout the United States and sales representatives 
with expertise in selling testing and other medical equipment to the 
physicians' office laboratory market. Although the Company's first sale and 
shipment of its IOS system occurred in March 1996, there can be no assurance 
that the Company will be successful in marketing its products, directly or 
through distributors.  In addition, since the Company first established 
relationships with its distributors, some of the distributors of the 
Company's products have consolidated with companies that distribute products 
that may compete with the Company's products.  There can be no assurance that 
such consolidation will not continue, and if it does continue, that such 
consolidation will not have an adverse impact on the Company's operations.  

       In addition to its relationships with distributors, the Company must 
expand its marketing and customer service programs and its sales force in 
order to penetrate successfully the point-of-care market for immunodiagnostic 
testing.  In order to compete successfully, the Company will be required to 
provide prompt service to its customers.  However, there can be no assurance 
that the Company will be able to establish the necessary programs or that 
such programs and service will be consistently reliable.  

       The Company expects that international sales will represent a portion 
of its net sales and that the Company's success will be dependent upon, among 
other things, its ability to form relationships with established 
international marketing partners.  To date, no such relationships have been 
established.  If such relationships are established, the Company will be 
subject to normal risks of international sales, such as currency 
fluctuations, export controls and other regulations.  In addition, the laws 
of certain foreign countries may not protect the Company's intellectual 
property rights to the same extent as do the laws of the United States.

RELATIONSHIP WITH BECKMAN AND OTHER POTENTIAL LICENSEES

       Biocircuits has developed significant knowledge about lipid/polymer 
biomaterials in the past seven years that the Company believes could be 
useful in other diagnostic system applications. In August 1995, Biocircuits 
entered into an agreement with Beckman Instruments, Inc. ("Beckman") and 
received $3,500,000 in the form of the Note in exchange for granting Beckman 
options for licensing and marketing rights to certain testing applications 
using the Company's lipid-polymer technology.  Pursuant to the terms of the 
agreement, Biocircuits completed a feasibility study in August 1996.  Because 
Beckman subsequently elected not to exercise its development license option, 
Biocircuits regained full rights to the lipid-polymer technology, including 
all improvements made during the feasibility study.  In connection with the 
Conversion, Beckman also elected to convert the Note into the Company's 
Common Stock and the Beckman Warrant to purchase the Company's Common Stock.

       Biocircuits will continue its internal efforts to develop further the 
lipid-polymer technology and will also look for licensing partners.  The 
Company believes the lipid-polymer technology could be used in a next 
generation IOS system.  There can be no assurance, however, that the Company 
will be able to enter into any licensing 

                                        8.

<PAGE>


partnerships, that any such partnerships would be successful, or that the 
lipid-polymer technology can be developed successfully for use in future 
products.

LACK OF MANUFACTURING EXPERIENCE; RELIANCE ON CONTRACT MANUFACTURERS

       Biocircuits has developed a proprietary manufacturing process for 
producing the test cartridges for its IOS point-of-care system.  The Company 
has established its initial manufacturing capability for the single-use 
cartridges. Various plastic components and other materials for the cartridges 
are and will be obtained from contract manufacturers.  The Company's near 
term cartridge manufacturing milestones include improving manufacturing 
efficiencies, expanding mold and cartridge manufacturing capacity as both the 
test menu and test manufacturing volume expand, initiating manufacturing 
automation efforts and manufacturing the cartridge at the Company's targeted 
cost.  There can be no assurance that the Company will be successful in 
achieving these milestones or that these milestones will be achieved on a 
timely basis.  This automation effort will be critical to meeting the 
Company's longer-term cartridge manufacturing demands and cost targets.  The 
cartridge manufacturing scale-up process will require the Company to develop 
advanced manufacturing techniques and rigorous process controls.  There can 
be no assurance that the Company will be successful in these efforts or that 
such efforts will result in the Company meeting expected cartridge demand or 
achieving the Company's longer-term cartridge manufacturing cost targets.  

       The Company has registered its manufacturing facility with the FDA and 
with the Department of Health Services of the State of California, and will 
be subject to state and federal inspections confirming the Company's 
compliance with good manufacturing practice ("GMP") guidelines.  Prior to the 
first sale and shipment of its IOS point-of-care system in March 1996, the 
Company believes it completed setting up this initial manufacturing capability
in compliance with GMP requirements.  No assurance can be given as to the 
ability of the Company to produce commercial quantities of cartridges in 
compliance with applicable regulations at an acceptable cost.  

       In August and December 1995, the Company entered into agreements with 
NalgeNunc International, Inc. ("Nunc") to manufacture the plastic components 
of its disposable test cartridges. Under the terms of the agreement, Nunc has 
the exclusive right to supply the plastic components for the test cartridges 
for all sales in North America.  The Company will be entirely dependent on 
Nunc as the sole source for the plastic components and the molding thereof.  
There can be no assurance that Nunc will be able to deliver the required 
quantities of test cartridge components on schedule or at costs acceptable to 
the Company.

       In December 1992, the Company entered into an agreement with KMC 
Systems, Inc. ("Kollsman") pursuant to which Kollsman was appointed the 
exclusive North American supplier of the IOS instrument.  The agreement with 
Kollsman contained certain minimum purchase requirements and expired three 
years from the date of first commercial production, subject to certain rights 
of earlier termination.  In April 1996, the Company and Kollsman executed a 
letter agreement to amend the 1992 agreement (the "Letter Agreement"), 
pursuant to which Kollsman will be the exclusive supplier of the IOS 
instrument through 1997, the minimum purchase requirements were eliminated 
and the Company and Kollsman agreed to an acceptable fixed transfer price to 
be paid through 1997, the revised term of the agreement.  Also pursuant to 
the Letter Agreement, the Company agreed to issue Kollsman a warrant to 
purchase 250,000 shares of Common Stock at an exercise price of $7.00 per 
share, subject to an increase of 50,000 shares under certain circumstances.  
The warrant was to expire at year end 1997, subject to certain extension 
rights.  In November 1996, the Company and Kollsman amended the Letter 
Agreement to extend the expiration date of the warrant to June 1998, subject 
to certain extension rights.  In order to secure an adequate supply of IOS 
instruments, the Company has established a standby letter of credit for the 
benefit of Kollsman.  The Company is entirely dependent on Kollsman as the 
sole source of production of its IOS instruments.  Kollsman, in turn, relies 
upon sole-source suppliers for certain components.  Failure of Kollsman's 
suppliers to deliver the required quantities on a timely basis and at 
commercially reasonable prices, or Kollsman's failure to deliver the IOS 
instruments to the Company on a timely basis or at commercially reasonable 
costs could materially adversely affect the Company.  

                                        9.

<PAGE>


       The Company has experienced delays from Kollsman in the past, 
resulting in delays in the development of the TSH, qualitative serum 
pregnancy and quantitative hCG assays and delays in the introduction of the 
IOS system and initial assays.  There can be no assurance that similar delays 
will not be encountered in the future.  In the event that shipments are 
delayed and orders for the IOS point-of-care system become significantly 
backlogged, the delay could have a material adverse impact on the Company.

HISTORY OF LOSSES; EXPECTATION OF FUTURE LOSSES

       At September 30, 1996, the Company's accumulated deficit was 
approximately $48.0 million. Biocircuits expects to incur additional losses 
over the next several years.  The Company expects that currently available 
funds will be used primarily for the continued launch of the IOS 
point-of-care system and development of additional tests for the IOS 
point-of-care system.  The losses may vary from period to period, including 
from quarter to quarter, and are generally expected to increase, due to the 
recent launch of the Company's IOS point-of-care system.  Accordingly, the 
Company believes that quarter-to-quarter results are not a useful indicator 
of the Company's performance.  There can be no assurance that any products 
will be manufactured or marketed successfully, or that profitability will 
ever be achieved.

FUTURE CAPITAL NEEDS; UNCERTAINTY OF ADDITIONAL FUNDING; MAINTENANCE OF 
NASDAQ LISTING

       Additional funds will be required in 1997 to carry the Company beyond 
the initial sales of the IOS system and to enable the Company to develop and 
obtain regulatory approval for additional tests.  The Company believes that 
its existing capital resources will be adequate to satisfy its requirements 
into the second quarter of 1997, assuming no exercise of outstanding 
warrants.  If the remaining warrants issued by the Company in June 1995, 
which expire on February 14, 1997, are exercised in full for cash, the 
Company would receive an aggregate amount of $2.1 million, which the Company 
estimates would satisfy the Company's cash requirements until late second 
quarter 1997. If the warrants issued by the Company in an October 1996 
private financing (the "Financing Warrants") are exercised prior to the end 
of second quarter 1997, the Company believes its cash resources will be 
adequate to satisfy its requirements through late in the third quarter of 
1997.  However, since the Financing Warrants expire in October 1997, there 
can be no assurance that they will be exercised prior to the end of second 
quarter 1997.  The Company has the right to call the Financing Warrants in 
the second half of their one year life if the Common Stock price equals or 
exceeds $5.25 per share. The Company's ability to continue its planned 
operations will be dependent upon its ability to obtain additional funds from 
existing investors, new investors or corporate partners.  The Company intends 
to pursue all of these financing options, but there can be no assurance that 
the Company will be successful.  If not successful in obtaining financing, 
the Company's business will be materially and adversely affected.

       The Company believes that maintaining its listing on the Nasdaq 
National Market System ("Nasdaq") is central to its ability to raise 
additional funds as well as to provide liquidity to investors. The Company 
believes that the Conversion of the Note will result in the Company 
meeting Nasdaq listing requirements until the end of first quarter 1997.  If 
approximately one-third of the warrants which expire in February 1997 are 
exercised for cash, the Company believes it will meet Nasdaq listing 
requirements until the end of second quarter 1997.  If the Financing Warrants 
are exercised before June 30, 1997, the Company believes it will meet Nasdaq 
listing requirements until the end of third quarter 1997.  Thereafter, the 
Company will be required to generate sufficient revenues or raise additional 
capital to maintain Nasdaq listing requirements.  

       The Company expects its cash requirements to increase significantly in 
future periods due to higher expenses.  The Company expects to incur 
substantial additional costs, including costs related to ongoing research and 
development activities, either alone or in collaboration with strategic 
partners, clinical trials, expansion of manufacturing, research and 
development and administrative facilities, development of manufacturing 
capabilities, obtaining regulatory approvals and establishing sales, 
marketing and distribution capabilities.  The Company's long-term capital 
requirements will depend on numerous factors, including the progress of the 
Company's research and product development, the timing and cost of obtaining 
regulatory approvals, the costs associated with patents and other 
intellectual property rights, the levels of resources devoted to the 
development of manufacturing and 

                                       10.

<PAGE>

marketing capabilities and potential collaborative partnerships.  The Company 
intends to seek additional funding through collaborative relationships and 
public or private financings.  Other methods of financing the acquisition of 
capital equipment, including lease financing, may be utilized if available on 
attractive terms.  Raising additional funds from public or private financings 
may result in further dilution to then-existing shareholders.  The Company 
also may attempt to obtain funds through arrangements with strategic partners 
or others that may require the Company to relinquish rights to certain of its 
technologies, products or marketing territories in exchange for funding.  If 
adequate funds are not available from these sources, the Company will be 
required to curtail its operations significantly.  No assurance can be given 
that any additional financing will be available, or, if available, that it 
will be available on acceptable terms.

COMPETITION

       Human immunodiagnostics is an intensely competitive field in which 
there are a number of well-established companies. Many of the Company's 
competitors have substantially greater financial resources and larger, more 
established sales, marketing, and service organizations. The primary bases of 
competition in the immunodiagnostic testing market are throughput, 
ease-of-use, price, breadth of test menu, quality of results and service. 
There can be no assurance that the Company will be able to compete 
successfully on any of these bases.  

       The Company believes that its principal competitors will be large 
companies with a diagnostic division such as Abbott Laboratories, Becton, 
Dickinson and Company, Boehringer Mannheim, GmbH, Chiron/Ciba-Corning 
Diagnostics Corporation and Johnson & Johnson. Each of these companies has an 
established position in the clinical laboratory test market with systems 
based on traditional immunoassay technology. No assurance can be given that 
the Company's products will compete successfully with existing or future 
products of such competitors or that new competitors will not enter the 
market with competing technologies. The Company expects that in the future, 
one or more of these companies or others will develop and introduce new 
systems for the point-of-care market. If any such company is able to develop 
or acquire rights to a better immunodiagnostic testing system, the Company's 
business would be materially adversely affected.

UNCERTAINTY OF PROTECTION OF PATENTS AND PROPRIETARY TECHNOLOGY

       The Company has aggressively pursued the development of a patent 
portfolio to protect its technology.  However, the patent positions of any 
medical device manufacturer, including Biocircuits, are uncertain and involve 
complex legal and factual questions for which important legal principles are 
largely unresolved. In addition, the coverage claimed in a patent application 
can be significantly reduced before a patent is issued. Consequently, there 
can be no assurance that any patent applications will result in the issuance 
of patents or, with respect to issued patents, whether they will provide 
significant proprietary protection or will be circumvented or invalidated. 
Since patent applications in the United States are maintained in secrecy 
until patents issue, and since publication of discoveries in the scientific 
or patent literature often lag behind actual discoveries, the Company cannot 
be certain that it or any licensor was the first to file a patent application 
for such invention. Moreover, the Company might have to participate in 
interference proceedings declared by the United States Patent and Trademark 
Office to eventually determine priority of invention, which could result in 
substantial costs to the Company, even if the patents, if issued, would be 
held valid by a court or if a competitor's technology or product would be 
found to infringe such patents.  

       The Company also relies upon trade secret protection for its 
confidential and proprietary information. There can be no assurance that 
others will not independently develop substantially equivalent proprietary 
information and techniques or otherwise gain access to the Company's trade 
secrets or disclose such technology, or that the Company can meaningfully 
protect its trade secrets.

       Biocircuits requires its employees, consultants and advisors to 
execute confidentiality agreements upon the commencement of an employment or 
consulting relationship with the Company. Each agreement provides that all 
confidential information developed or made known to the individual during the 
course of the relationship will be kept confidential and not disclosed to 
third parties except in specified circumstances. In the case of employees, 
the 

                                       11.


<PAGE>


agreements provide that all inventions conceived by an individual shall be 
the exclusive property of the Company, other than inventions unrelated to the 
Company's business and developed entirely on the employee's own time. There 
can be no assurance, however, that these agreements will provide meaningful 
protection or adequate remedies for the Company's trade secrets in the event 
of unauthorized use or disclosure of such information.

GOVERNMENT REGULATION

       The Biocircuits IOS point-of-care system is regulated in the United 
States as a medical device by the FDA and as such, requires regulatory 
clearance or approval prior to commercialization. Pursuant to the Federal 
Food, Drug and Cosmetic Act (the "FDC Act"), and the regulations promulgated 
thereunder, the FDA regulates, among other things, the clinical testing, 
manufacture, labeling, promotion, distribution, sale and use of medical 
devices in the United States. Failure of the Company to comply with 
applicable regulatory requirements can result in, among other things, warning 
letters, fines, injunctions, civil penalties, recall or seizure of products, 
total or partial suspension of production, the government's refusal to grant 
premarket clearance or premarket approval of 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, based on the controls necessary to reasonably 
ensure their safety and effectiveness. Class I devices are those devices 
whose safety and effectiveness can reasonably be ensured through general 
controls, such as adequate labeling, pre-market notification, and adherence 
to GMP regulations. Class II devices are those devices whose safety and 
effectiveness can reasonably be ensured through the use of general special 
controls, such as performance standards, post-market surveillance, patient 
registries, and FDA guidelines. Class III devices are devices which must 
receive pre-market approval by the FDA to ensure their safety and 
effectiveness. Generally, Class III devices are life-sustaining, 
life-supporting or implantable devices, or new devices which have been found 
not to be substantially equivalent to legally marketed devices.  

       Before a new medical device may be introduced into the market in the 
United States, the manufacturer or distributor generally must obtain either 
FDA clearance of a section 510(k) premarket notification or FDA approval of a 
premarket approval ("PMA") application.  

       If the manufacturer or distributor can establish that the device is 
"substantially equivalent" to a legally marketed Class I or Class II medical 
device or to a Class III medical device for which the FDA has not required a 
PMA (the "predicated device"), the manufacturer or distributor may seek FDA 
marketing clearance for the device by filing a 510(k) notification. In a 
510(k) filing, the manufacturer or distributor is required to demonstrate 
that the device has the same intended use and the same technological 
characteristics as the predicate device or has different technological 
characteristics that do not raise different questions of safety and efficacy 
than the predicate device. A 510(k) notification must contain information to 
support the claim of substantial equivalence, which may include laboratory 
test results or the results of clinical studies.  Following submission of a 
510(k) notification, the manufacturer or distributor may not place the device 
into commercial distribution until an order of substantial equivalence is 
issued by the FDA. The Company understands that the FDA has been requiring a 
more rigorous demonstration of substantial equivalence in connection with 
510(k) notifications. Although it generally takes from four to twelve months 
from the date of submission to obtain a 510(k) clearance, it may take longer. 
FDA regulations do not specify the time in which it must respond to a 510(k) 
submission. The FDA may determine that the proposed device is not 
substantially equivalent to a legally marketed device, or may require further 
information, such as additional test data, before the FDA is able to make a 
substantial equivalence determination. Such determination or request for 
additional information could delay the Company's market introduction of its 
future products and could have a materially adverse effect on the Company's 
continued operations. Further, for any of the Company's devices cleared 
through the 510(k) process, modifications or enhancements that could 
significantly change safety or effectiveness or constitute a major change in 
the intended use of the device will require a new 510(k) submission. The 
Company's IOS point-of-care instrument tests currently are regulated as Class 
II medical devices.  The Company has received 510(k) clearances for the 
instrument and the T4 and T Uptake tests, the T4-only test, the qualitative 
serum pregnancy test, the TSH test and the quantitative hCG test in 1995 and 
1996.  

       If a manufacturer or distributor cannot establish that a proposed 
device is substantially equivalent to another legally marketed predicate 


                                       12.

<PAGE>

device, the manufacturer or distributor must seek pre-market approval of the 
proposed device through submission of a PMA application. A PMA application 
must be supported by extensive data, including pre-clinical and clinical 
trial data to prove the safety and efficacy of the device, as well as 
extensive manufacturing information. If human clinical trials are required 
and the device presents "a significant risk," the sponsor of the trial 
(usually the manufacturer or distributor) is required to file an 
investigational device exemption ("IDE") application with the FDA before 
commencing human clinical trials. The IDE application must be supported by 
data, typically including the results of laboratory and animal testing. If 
the IDE application is approved by the FDA and one or more appropriate 
institutional review boards ("IRBs"), human clinical trials may begin at a 
specific number of investigational sites with a specific number of subjects, 
as approved by FDA. If the device presents a "nonsignificant risk" to 
subjects, a sponsor may begin the clinical trial after obtaining approval of 
one or more appropriate IRBs without the need for FDA approval. An IDE 
supplement must be submitted to and approved by the FDA before a sponsor or 
investigator may make a change to the investigational plan that may affect 
its scientific soundness or the rights, safety or welfare of human subjects.  
A PMA application must contain the results of clinical trials, the results of 
any relevant bench tests, laboratory and animal studies, a complete 
description of the device and its components, and a detailed description of 
the methods, facilities and controls used to manufacture the device. The 
submission also must include the proposed labeling, advertising and training 
methods, if required. Upon receipt, the FDA conducts a preliminary review of 
the PMA application to determine whether the submission is sufficiently 
complete to permit a substantive review. If sufficiently complete, the 
submission is declared fileable by the FDA. By statute, the FDA has 180 days 
to review a PMA application, although the review time often is extended 
significantly by the FDA asking for more information or clarification of 
information already provided in the submission.  While the FDA has responded 
to PMA applications within the allotted time period, PMA reviews more often 
occur over a significantly protracted time period and generally take 
approximately 12 to 24 months or more from the date of filing to approval. 
The FDA also will inspect the manufacturing facilities to ensure compliance 
with the FDA's GMP requirements prior to approval of a PMA. This is a lengthy 
and expensive process, and there can be no assurance that such approval will 
be obtained for any future product the Company may develop which may be 
determined to be subject to such requirements. A number of devices for which 
PMA marketing clearance has been sought by others have never been cleared for 
marketing. Modifications to a device that is subject of an approved PMA, its 
labeling or manufacturing process may require FDA approval of new PMAs or PMA 
supplements, which often require submission of the same type of information 
required for the initial PMA. There can be no assurance that any of the 
Company's future products will ever obtain the necessary FDA regulatory 
clearance for commercial distribution.

       Any products distributed by Biocircuits pursuant to the above 
described clearances are subject to pervasive and continuing regulation by 
the FDA. The Company also will be required to manufacture its products in 
registered establishments and in accordance with GMP regulations. There can 
be no assurance that the Company or its OEM suppliers' facilities will meet 
GMP requirements. Failure to meet such requirements could result in certain 
actions by the FDA, including the possible shutdown of the Company's 
manufacturing facilities.  In addition, the FDA has enacted changes to the 
GMP regulations that may increase the cost of compliance with GMPs. The 
Company's facility will be subject to periodic inspections by the FDA for 
compliance with GMP and other applicable requirements.  Labeling and 
promotional activities are subject to scrutiny by the FDA and, in certain 
instances, by the Federal Trade Commission. Current FDA enforcement policy 
strictly prohibits marketing of medical devices for unapproved uses. The 
export of medical devices also is subject to regulation in certain instances. 
In addition, the use of the Company's products may be regulated by various 
state agencies. For example, the Company was required to obtain a license 
from the State of California to manufacture its proposed products. There can 
be no assurance that the Company's proposed products will be able to comply 
successfully with any such requirements or regulations.

       The potential market for the Company's products may be affected by the 
CLIA. The CLIA establishes requirements for any facility that performs 
laboratory testing on human specimens for the purpose of providing 
information for diagnosis or treatment of human beings. The CLIA covers such 
testing in virtually all settings, including physicians' offices.

                                       13.

<PAGE>


Regulations implementing CLIA establish requirements for laboratories in such 
areas as administration, participation in proficiency testing, patient test 
management, quality control, personnel, quality assurance and inspection. 
Under these regulations, the specific requirements that a laboratory must 
meet depend upon the complexity of the tests performed by the laboratory. 
Laboratory tests are categorized as either waived tests, tests of moderate 
complexity or tests of high complexity. Laboratories that perform either 
moderate or high complexity tests must meet standards in all areas, with the 
major difference in requirements between moderate and high complexity testing 
concerning quality control and personnel standards. Quality control standards 
for moderate complexity testing are being implemented in stages. Laboratories 
performing high complexity testing must meet all the quality control 
requirements by the effective date of the regulations. Personnel standards 
for high complexity testing are more rigorous than those for moderate 
complexity testing. In general, personnel conducting high complexity testing 
will need more education and experience than those doing moderate complexity 
testing. Under the CLIA regulations, all laboratories performing moderately 
complex or highly complex tests will be required to obtain either a 
registration certificate or certification of accreditation from the Health 
Care Financing Administration ("HCFA").

       The Company's IOS system has been classified as testing of moderate 
complexity, and thus any laboratory using such products would have to meet 
the regulatory requirements for testing of moderate complexity. However, it 
is possible that the Company's products could be categorized as tests of high 
complexity in the future, in which case the Company's penetration of the 
point-of-care market would be reduced since not all laboratories would meet 
the standards required to conduct such tests. The Company understands that 
laboratories, including physician office laboratories, will be evaluating the 
requirements of the CLIA in determining whether to perform certain types of 
moderate and high complexity diagnostic tests. The Company believes that the 
sale of its proposed products will not be adversely affected by the CLIA. 
However, no assurances can be given that the statute and its implementing 
regulations will not have a materially adverse impact on the Company and its 
ability to market and sell its IOS system or any future products that the 
Company may develop.

       Although Biocircuits believes that it will be able to comply with all 
applicable regulations regarding the manufacture and sale of diagnostic 
devices, such regulations are always subject to change and depend heavily 
upon administrative interpretations. There can be no assurance that future 
changes in regulations or interpretations made by the U.S. Department of 
Health and Human Services, FDA, HCFA or other regulatory bodies, with 
possible retroactive effect, will not adversely affect the Company. In 
addition to the foregoing, Biocircuits is subject to numerous federal, state 
and local laws and regulations relating to such matters as safe working 
conditions, laboratory and manufacturing practices, environmental, fire 
hazard control, and disposal of hazardous or potentially hazardous 
substances. To date,compliance with these laws and regulations has not had a 
material effect on the Company's financial results, capital requirements or 
competitive position, and the Company has no plans for material capital 
expenditures relating to such matters. However, there can be no assurance 
that it will not be required to incur significant costs to comply with such 
laws and regulations in the future, or that such laws or regulations will not 
have a materially adverse effect upon the Company's ability to do business.

       Sales of medical devices outside the United States are subject to 
foreign regulatory requirements that vary widely from country to country. The 
time required to obtain registrations or approvals required by foreign 
countries may be longer or shorter than that required for FDA clearance or 
approval, and requirements for licensing may differ significantly from FDA 
requirements.  Some countries historically have permitted human studies 
earlier in the product development cycle than regulations in the United 
States permit. Other countries have requirements similar to those of the 
United States. This disparity in the regulation of medical devices may result 
in slower product clearance in certain countries than in others. Furthermore, 
the introduction of the Company's IOS system or any future products in 
foreign markets might require obtaining foreign regulatory clearances. There 
can be no assurance that the Company will be able to obtain regulatory 
clearances for its current or any future products in the United States or in 
foreign markets.

                                       14.

<PAGE>


NEED TO RETAIN AND ATTRACT KEY EMPLOYEES

       The Company is highly dependent upon the principal members of its 
management and scientific staff, the loss of whose services might impede the 
achievement of the Company's business objectives. Furthermore, recruiting and 
retaining additional qualified scientific, manufacturing, marketing and sales 
personnel also will be critical to the Company's success.  The Company faces 
competition for qualified individuals from numerous manufacturers of medical 
products and other high technology products, as well as universities and 
academic institutions.  There can be no assurance that the Company will be 
able to attract and retain qualified personnel on acceptable terms.

POTENTIAL ADVERSE IMPACT OF REIMBURSEMENT POLICIES

       Political, economic and regulatory influences are subjecting the 
healthcare industry in the United States to fundamental change. Although 
Congress has failed to pass comprehensive health care reform legislation to 
date, the Company anticipates that Congress, state legislatures and the 
private sector will continue to review and assess alternative benefits, 
controls on health care spending through limitations on the growth of private 
health insurance premiums and Medicare and Medicaid spending, the creation of 
large insurance purchasing groups, price controls on pharmaceuticals and 
other fundamental changes to the health care delivery system. Any such 
proposed or actual changes could cause any potential partners of the Company 
to limit or eliminate spending on collaborative development projects. 
Legislative debate is expected to continue in the future, market forces are 
expected to demand reduced costs and Biocircuits cannot predict what impact 
the adoption of any federal or state health care reform measures or future 
private sector reforms may have on its business. 

       In both domestic and foreign markets, sales of the Company's IOS 
point-of-care system and other potential products, if any, will depend in 
part on the availability of reimbursement from third-party payors such as 
government health administration authorities, private health insurers and 
other organizations. Third-party payors are increasingly challenging the 
price and cost effectiveness of medical products and services. Significant 
uncertainty exists as to the reimbursement status of newly approved health 
care products.  There can be no assurance that the Company's products will be 
considered cost effective or that adequate third-party reimbursement will be 
available to enable Biocircuits to maintain price levels sufficient to 
realize an appropriate return on its investment in product development. 
Legislation and regulations affecting the pricing of health care services may 
change, which could affect the Company's products and could further limit 
reimbursement for medical products and services.

RISK OF PRODUCT LIABILITY; POSSIBLE UNAVAILABILITY OF INSURANCE

       Testing, manufacturing and marketing of the Company's potential 
products will entail risk of product liability.  The Company currently has 
product liability insurance.  However, there can be no assurance that the 
Company will be able to maintain such insurance at a reasonable cost or in 
sufficient amounts to protect the Company against losses due to product 
liability.  An inability to maintain insurance at an acceptable cost or to 
otherwise protect against potential product liability could prevent or 
inhibit the commercialization of the Company's products.  In addition, a 
product liability claim or recall could have a material adverse effect on the 
business or financial condition of Biocircuits.

HAZARDOUS MATERIALS

       The Company's research and development involves the controlled use of 
hazardous materials and chemicals.  Although the Company believes that its 
safety procedures for handling and disposing of such materials comply with 
the standards prescribed by state and federal regulations, the risk of 
accidental contamination or injury from these materials cannot be completely 
eliminated. In the event of such an accident, the Company could be held 
liable for any damages that result and any such liability could exceed the 
resources of the Company.  The Company may incur substantial costs to comply 
with environmental regulations.

                                       15.

<PAGE>

ANTI-TAKEOVER EFFECT OF DELAWARE LAW AND CERTAIN CHARTER PROVISIONS

       The Board of Directors has authority to issue up to 10,000,000 shares 
of Preferred Stock, in addition to the 30,000,000 designated shares of Series 
A Preferred Stock, and to fix the rights, preferences, privileges and 
restrictions, including voting rights, of those shares without any further 
vote or action by the stockholders.  The rights of the holders of the Common 
Stock will be subject to, and may be adversely affected by, the rights of the 
holders of the outstanding Series A Preferred Stock and any other Preferred 
Stock that may be issued in the future.  The outstanding Series A Preferred 
Stock could have the effect of making it more difficult for a third party to 
acquire a majority of the outstanding voting stock of the Company. 
Furthermore, certain provisions of the Company's Amended and Restated 
Certificate of Incorporation, such as a classified Board of Directors, its 
Amended and Restated Bylaws and of Delaware law could delay or make more 
difficult a merger, tender offer or proxy contest involving the Company.

VOLATILITY OF STOCK PRICE

       The market price of the Company's Common Stock, like that of the 
common stock of many other medical device and other high technology 
companies, has been highly volatile.  Factors such as delays in obtaining FDA 
approval for the IOS point-of-care system, fluctuations in the Company's 
actual or anticipated operating results, announcements of technological 
innovations or new commercial products by the Company or its competitors, 
governmental regulation, changes in the current structure of the health care 
financing and payment systems in the United States, developments in or 
disputes regarding patent or other proprietary rights, economic and other 
external factors and general market conditions may have a significant effect 
on the market price of the Common Stock.

CONCENTRATION OF SHARE OWNERSHIP

       Based upon the shares outstanding as of September 30, 1996, the 
Company's officers, directors and their affiliates as a group beneficially 
owned approximately 52.54% of the Company's outstanding Common Stock and 
Series A Preferred Stock (on an as-converted basis).  As a result, these 
stockholders will be able to exercise significant influence over all matters 
requiring stockholder approval, including the election of directors and 
approval of significant corporate transactions.

                                       16.

<PAGE>


                          THE COMPANY

       Biocircuits Corporation was incorporated in Delaware in March 1989.  
The Company's executive offices are located at 1324 Chesapeake Terrace, 
Sunnyvale, California 94089, and its telephone number is (408) 745-1961.  

                         USE OF PROCEEDS

       The Company will not receive any of the proceeds from the sale of the 
Shares by the Selling Securityholders.  The net proceeds from the exercise of 
the Warrants received by the Company will be considered uncommitted funds 
that may be used by the Company for general corporate purposes, including 
sales and marketing and research and development.

                         DIVIDEND POLICY

       The Company has never paid cash dividends.  The Company's Board of 
Directors currently intends to retain any earnings for use in the Company's 
business and does not anticipate paying any cash dividends in the foreseeable 
future.


                                       17.


<PAGE>

                           SELLING SECURITYHOLDERS

     The following table sets forth the names of the Selling Securityholders, 
the number of shares of Common Stock owned by each Selling Securityholder 
prior to this offering, the number of shares of Common Stock being offered 
for the account of each Selling Securityholder and the number of shares of 
Common Stock to be owned by each Selling Securityholder after completion of 
this offering.  This information is based upon information provided by the 
Selling Securityholders. Because the Selling Securityholders may offer all, 
some or none of their Common Stock, no definitive estimate as to the number 
of Shares thereof that will be held by the Selling Securityholders after such 
offering can be provided.

<TABLE>
<CAPTION>
                                       SHARES BENEFICIALLY          SHARES BEING      SHARES BENEFICIALLY
SELLING SECURITYHOLDER             OWNED PRIOR TO OFFERING (1)(2)    OFFERED(2)    OWNED AFTER OFFERING(1)(3)
- ----------------------             ------------------------------   ------------   --------------------------
<S>                                <C>                              <C>            <C> 

Beckman Instruments, Inc.                  1,334,072                  1,334,072                 0

KMC Systems, Inc.                            250,000                    250,000                 0

Venture Lending, a division of
  Cupertino National Bank & Trust
  Company                                     12,233(4)                   4,605             7,628

Total:                                                                1,588,677
</TABLE>













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

(1)  Unless otherwise indicated below, the persons named in the table have or 
     will have sole voting and investment power with respect to all shares 
     beneficially owned by them, subject to community property laws where 
     applicable.

(2)  Assumes exercise of the Warrants.

(3)  Assumes the sale of all Shares offered hereby.  The Company has agreed 
     to pay all reasonable fees and expenses incident to the filing of this 
     offering. See "Plan of Distribution."

(4)  Includes 7,628 shares of Common Stock issuable upon the exercise of
     Warrants issued in previous financings.

                                      18.
<PAGE>

                             PLAN OF DISTRIBUTION

     The Shares may be offered by the Selling Securityholders from time to 
time in transactions on the Nasdaq National Market System, in privately 
negotiated transactions or a combination of such methods of sale, at fixed 
prices that may be changed, at market prices prevailing at the time of sale, 
at prices related to such prevailing market prices or at negotiated prices.  
The Selling Securityholders may effect such transactions by selling the 
Shares directly or by or through agents or broker-dealers who may receive 
compensation in the form of discounts, concessions or commissions from the 
Selling Securityholders or the purchasers of the Shares for whom such 
broker-dealers may act as agent or to whom they sell as principal or both 
(which compensation to a particular broker-dealer might be in excess of 
customary commissions).

     The Selling Securityholders and any underwriters, dealers or agents that 
participate in the distribution of the Shares may be deemed to be 
"underwriters" within the meaning of the Securities Act, and any discounts, 
commissions or concessions received by them and any provided pursuant to the 
sale of the Shares by them might be deemed to be underwriting discounts and 
commissions under the Securities Act.   In order to comply with the 
securities laws of certain states, if applicable, the Shares will be sold in 
such jurisdictions only through registered or licensed brokers or dealers.  
In addition, in certain states the Shares may not be sold unless it has been 
registered or qualified for sale in the applicable state or an exemption from 
the registration or qualification requirement is available and is complied 
with.

     Under applicable rules and regulations under the Exchange Act, any 
person engaged in the distribution of the Shares may not simultaneously 
engage in market making activities with respect to such Shares for a period 
of nine business days prior to the commencement of such distribution.  In 
addition and without limiting the foregoing, each Selling Securityholder will 
be subject to applicable provisions of the Exchange Act and the rules and 
regulations thereunder, including, without limitation, Rules 10b-2, 10b-6 and 
10b-7, which may limit the timing of purchases and sales of the Shares by the 
Selling Securityholders.

     The Company entered into agreements with the Selling Securityholders to 
register their Shares under applicable federal and state securities laws.  
The Company will pay substantially all of the expenses incident to the 
offering and sale of the Shares to the public, other than commissions, 
concessions and discounts of underwriters, dealers or agents.  Such expenses 
(excluding such commissions and discounts) are estimated to be $21,565.00.  
Such agreements provide for cross-indemnification of the Selling 
Securityholders and the Company to the extent permitted by law, for losses, 
claims, damages, liabilities and expenses arising, under certain 
circumstances, out of any registration of the Shares.


                                      19.
<PAGE>

                                LEGAL MATTERS

     The validity of the securities offered hereby will be passed upon for 
the Company by Cooley Godward LLP, Palo Alto, California.

                                   EXPERTS

     The financial statements of Biocircuits Corporation appearing in 
Biocircuits Corporation's Annual Report (Form 10-K) for the year ended 
December 31, 1995 have been audited by Ernst & Young LLP, independent 
auditors, as set forth in their report thereon (which contains an explanatory 
paragraph with respect to the Company's ability to continue as a going 
concern) included therein and incorporated herein by reference.  Such 
financial statements are, and audited financial statements to be included in 
subsequently filed documents will be, incorporated herein in reliance upon 
the reports of Ernst & Young LLP pertaining to such financial statements (to 
the extent covered by consents filed with the Securities and Exchange 
Commission) given upon the authority of such firm as experts in accounting 
and auditing.

                                      20.
<PAGE>

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NO DEALER, SALESPERSON OR OTHER PERSON HAS BEEN AUTHORIZED TO GIVE ANY 
INFORMATION OR TO MAKE ANY REPRESENTATIONS NOT CONTAINED IN THIS PROSPECTUS 
AND, IF GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED 
UPON AS HAVING BEEN AUTHORIZED BY THE COMPANY. THIS PROSPECTUS DOES NOT 
CONSTITUTE AN OFFER OF ANY SECURITIES OTHER THAN THOSE TO WHICH IT RELATES OR 
AN OFFER TO SELL, OR A SOLICITATION OF AN OFFER TO BUY, TO ANY PERSON IN ANY 
JURISDICTION WHERE SUCH OFFER OR SOLICITATION WOULD BE UNLAWFUL. NEITHER THE 
DELIVERY OF THIS PROSPECTUS NOR ANY SALE MADE HEREUNDER SHALL, UNDER ANY 
CIRCUMSTANCES, CREATE ANY IMPLICATION THAT THE INFORMATION CONTAINED HEREIN 
IS CORRECT AS OF ANY TIME SUBSEQUENT TO THE DATE HEREOF.

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

                                 TABLE OF CONTENTS

                                                                        Page
                                                                        ----
Available Information.....................................................3
Incorporation of Certain Documents by Reference...........................3
Summary Information.......................................................5
The Offering..............................................................6
Risk Factors..............................................................7
The Company...............................................................17
Use of Proceeds...........................................................17
Dividend Policy...........................................................17
Selling Securityholders...................................................18
Plan of Distribution......................................................19
Legal Matters.............................................................20
Experts...................................................................20


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                               1,588,677 SHARES



                            BIOCIRCUITS CORPORATION


                                 COMMON STOCK



                                  ----------
                                  PROSPECTUS
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                                JANUARY 15, 1997



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