EXHIBIT 4.3

THE  SECURITIES  REPRESENTED  BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER
THE  SECURITIES  ACT  OF  1933 OR ANY STATE SECURITIES LAWS AND MAY NOT BE SOLD,
OFFERED  FOR  SALE,  PLEDGED  OR  OTHERWISE  DISTRIBUTED  WITHOUT  AN  EFFECTIVE
REGISTRATION  STATEMENT  RELATED  THERETO  OR  AN  OPINION  OF COUNSEL IN A FORM
REASONABLY  SATISFACTORY  TO  THE  ISSUER THAT SUCH REGISTRATION IS NOT REQUIRED
UNDER  SUCH  ACT  AND  LAWS.

                          CORGENIX MEDICAL CORPORATION
                          CONVERTIBLE PROMISSORY NOTE


$500,000                                                   March  12,  2004
                                                           Westminster,  CO

     FOR  VALUE  RECEIVED,  Corgenix  Medical  Corporation, a Nevada corporation
("Borrower"),  promises  to  pay to Genesis Bioventures Inc., with an address at
  --------
1A-3033  King  George  Highway,  Surrey,  BCV,  Canada  V4P  1B8  ("Lender") the
                                                                    ------
principal  sum  of  FIVE  HUNDRED  THOUSAND Dollars ($500,000) together with all
accrued  and  unpaid  interest  thereon  as  set  forth  herein.

     Notwithstanding  any  other provision hereof, interest paid or becoming due
hereunder shall in no event exceed the maximum rate permitted by applicable law.
Both  principal and interest are payable in lawful money of the United States of
America to Lender at the address above indicated.  All payments shall be applied
first  to  costs of collection, if any, then to accrued and unpaid interest, and
thereafter  to  principal.

     Except  as otherwise stated herein, Borrower, for itself and its successors
and  assigns,  hereby  waives presentment, demand, notice, protest and all other
demands  and notices in connection with the delivery, acceptance, performance or
endorsement  of  this  Note.

     This  Note  is  subject  to  the  following  additional  provisions:

     1.     Reference  to  Certain  Merger  Agreement.  For  certain  provisions
            -----------------------------------------
hereof,  reference is made to the terms of an Agreement and Plan of Merger among
Borrower, Lender and GBI Acquisition Corporation dated as of March 12, 2004 (the
"Merger  Agreement").  Capitalized  terms used herein and not defined shall have
the  meanings  set  forth  in  the  Merger  Agreement.

     2.     Payment  of  Principal  and  Interest.
            -------------------------------------

     (a)     Period  of  No  Interest  Accrual.  Except as otherwise provided in
             ---------------------------------
Section 2(b) below, no interest will accrue or be owing on the principal balance
of  this  Note.

     (b)     Period  of  Interest  Accrual.  If  the  Closing  under  the Merger
             -----------------------------
Agreement  does  not  occur  for any reason (other than an unrightful refusal to
close by Borrower), interest will accrue on the unpaid principal balance of this
Note  (commencing  from  the  date of termination of the Merger Agreement) at an
annual  simple interest rate equal to the prime rate as in effect on the date of
termination  of  the  Merger  Agreement  (with prime rate being as listed in the
Money  Rates  section  of  the  Wall  Street  Journal  on  such  date).

     (c)     Period of Demand Payment of Principal. Except as otherwise provided
             -------------------------------------
in  Section  2(d) below, the unpaid principal balance of this Note is payable by
Borrower  upon  written  demand  by  Lender.

     (d)     Period  of  Amortized  Payment  of  Principal and Interest.  If the
             ----------------------------------------------------------


                                     E - 68
<PAGE>

Closing  under  the  Merger  Agreement does not occur for any reason, the unpaid
principal  plus accrued interest thereon will be payable in four fully-amortized
semi-annual  payments,  with the first payment due on October 31, 2004, and each
subsequent  payment  due six-months thereafter, such that the final full payment
of  principal  and  accrued  interest  will  be  made  on  April  30,  2006.

     3.     Conversion  Rights.
            ------------------

     (a)     Conversion  Following  Unrightful Refusal to Close by Borrower.  If
             --------------------------------------------------------------
the  Closing  under  the  Merger  Agreement  does  not  occur  solely due to the
unrightful  refusal to close by Borrower, Lender may elect to convert the unpaid
principal  balance  of  this  Note (plus accrued but unpaid interest thereon, if
any)  into shares of common stock of Borrower, at a conversion price of $.40 per
share  of Borrower common stock received.  Lender will provide written notice to
Borrower  of  Lender's  intent  to  convert  pursuant  to the provisions of this
Section  3(a),  together with the original of this Note.  Borrower will issue to
Lender  a  certificate  reflecting the number of shares of Borrower common stock
receivable  upon such conversion within ten (10) business days of receipt of the
written  election  to  convert  from  Lender.  The certificate for the shares of
common  stock  received  on such conversion will include a restricted securities
legend reflecting the unregistered manner of issuance thereof, such legend to be
substantially  in  the  form  of  the  restrictive legend first appearing above,
together  with  such  other  securities  legends  (if  any) as may be considered
necessary and appropriate by Borrower to comply with applicable securities laws.
The  Note will be marked 'CANCELLED' upon issuance and delivery of the shares of
common  stock  receivable  upon  such  conversion.

     (b)     Other  Conversion  by  Borrower.  If  the  Closing under the Merger
             -------------------------------
Agreement  does  not  occur  for any reason (other than an unrightful refusal to
close  by Borrower), Lender may elect to convert the unpaid principal balance of
this  Note  (plus  accrued  but  unpaid interest thereon, if any) into shares of
common  stock  of Borrower, at a conversion price of $.568 per share of Borrower
common  stock  received.  Lender  will  provide  written  notice  to Borrower of
Lender's  intent  to  convert  pursuant  to the provisions of this Section 3(a),
together  with  the  original  of  this  Note.  Borrower  will issue to Lender a
certificate  reflecting the number of shares of Borrower common stock receivable
upon  such  conversion  within  ten (10) business days of receipt of the written
election to convert from Lender.  The certificate for the shares of common stock
received  on  such  conversion  will  include  a  restricted  securities  legend
reflecting  the  unregistered  manner  of  issuance  thereof,  such legend to be
substantially  in  the  form  of  the  restrictive legend first appearing above,
together  with  such  other  securities  legends  (if  any) as may be considered
necessary and appropriate by Borrower to comply with applicable securities laws.
The  Note will be marked 'CANCELLED' upon issuance and delivery of the shares of
common  stock  receivable  upon  such  conversion.

     (c)     Surrender  of  Note.  As  promptly  as  practicable  after the
             -------------------
conversion  of  this  Note  pursuant  to  Section  3(a)  or Section 3(b) hereof,
Borrower  at its expense will issue and deliver to Lender, upon surrender of the
Note  to  Borrower  in  the  manner  and  at  the  place designated by Lender, a
certificate  or  certificates for the number of full shares of equity securities
issuable  upon  such  conversion.

     4.     Borrower  Prepayment Right.  Borrower may prepay this Note, in whole
            --------------------------
or  in  part,  at  any  time  prior to the due date for payment of principal and
interest  (if  any)  provided  hereunder.

     5.     Default.  This  Note  will  be in default if not paid by Borrower as
            -------
and  when  provided  hereunder.

     6.     Non-Waiver and Other Remedies.  No course of dealing or delay on the
            -----------------------------
part  of  Lender  in  exercising  any  right will operate as a waiver thereof or
otherwise  prejudice  the  right  of  Lender. No remedy conferred hereby will be
exclusive  of  any other remedy referred to herein or now or hereafter available
at  law,  in  equity,  by statute or otherwise. In case of any Default, Borrower
will  reimburse Lender for its reasonable attorneys' fees incurred in connection
with  the  enforcement  of  its  rights  hereunder.


                                     E - 69
<PAGE>

     7.     Notices.  Any  notices  required or permitted hereunder will be sent
            -------
and deemed to have been received if sent in the manner set forth in Section 15.1
of  the  Merger  Agreement.

     8.     Facsimile  Delivery.  This  Note  may  be  executed  by Borrower  in
            -------------------
facsimile  form  and  upon receipt by Lender of such faxed executed copy of this
Note,  this  Note will be binding upon and enforceable by Borrower and Lender in
accordance  with its terms. Borrower will promptly forward to Lender an original
of  the  facsimile  signed  copy  of  this Note that was so delivered to Lender.

     9.     GOVERNING  LAW.  THIS  NOTE  SHALL  BE  GOVERNED BY AND CONSTRUED IN
            --------------
ACCORDANCE  WITH  THE  LAWS  OF  THE  STATE  OF  COLORADO, WITHOUT REGARD TO THE
CONFLICT  OF  LAWS  PRINCIPLES  THEREOF.

     10.     Headings.  The  headings  of the sections of this Note are inserted
             --------
for  convenience  only  and  are  to  not be deemed to constitute a part hereof.

     11.     Successors  and  Assigns.  All  of  the  stipulations, promises and
             ------------------------
agreements in this Note contained by or on behalf of Borrower are binding on the
successors  and  assigns  of Borrower, whether so expressed or not, and inure to
the  benefit  of  the  permitted  successors and assigns of Borrower and Lender.

     12.     Severability.  In  the  event  any  one  or  more of the provisions
             ------------
contained  in  this  Note  is  for  any  reason  held  to be invalid, illegal or
unenforceable  in  any  respect, such invalidity, illegality or unenforceability
will  not  affect any other provision hereof, and this Note will be construed as
if  such  invalid,  illegal  or unenforceable provision had never been contained
herein.



     IN  WITNESS  WHEREOF,  Borrower has executed this Note as of the date first
above  written.

                                                  CORGENIX MEDICAL CORPORATION,
                                                  a  Nevada  corporation



                                                  By: /s/  Douglass  T.  Simpson
                                                  Name:  Douglass  T.  Simpson
                                                  Title:  President


                                     E - 70
<PAGE>