Document:

4.7      Form of Stock Purchase Warrant dated April 13, 2000 between the Company
         and Swartz Private Equity, LLC exercisable to purchase an aggregate of
         1,360,000 common shares

THIS WARRANT AND THE SECURITIES ISSUABLE UPON EXERCISE HEREOF HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"),
OR ANY STATE SECURITIES LAW, AND MAY NOT BE SOLD, TRANSFERRED, PLEDGED,
HYPOTHECATED OR OTHERWISE DISPOSED OF OR EXERCISED UNLESS (i) A REGISTRATION
STATEMENT UNDER THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS SHALL
HAVE BECOME EFFECTIVE WITH REGARD THERETO, OR (ii) AN EXEMPTION FROM
REGISTRATION UNDER THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS IS
AVAILABLE IN CONNECTION WITH SUCH OFFER, SALE OR TRANSFER.

AN INVESTMENT IN THESE SECURITIES INVOLVES A HIGH DEGREE OF RISK. HOLDERS MUST
RELY ON THEIR OWN ANALYSIS OF THE INVESTMENT AND ASSESSMENT OF THE RISKS
INVOLVED. SEE THE RISK FACTORS SET FORTH UNDER THAT CERTAIN INVESTMENT AGREEMENT
BY AND BETWEEN THE COMPANY AND HOLDER REFERENCED THEREIN AS EXHIBIT J.

Warrant to Purchase
    "N" shares                                            Warrant Number ____

                        WARRANT TO PURCHASE COMMON STOCK
                                       OF
                            MIRACOR DIAGNOSTICS, INC.

         THIS CERTIFIES that SWARTZ PRIVATE EQUITY, LLC or any subsequent holder
hereof ("Holder"), has the right to purchase from Miracor Diagnostics, Inc., a
Utah corporation (the "Company"), up to "N" fully paid and nonassessable shares,
wherein "N" is defined below, of the Company's common stock, $0.15 par value per
share ("Common Stock"), subject to adjustment as provided herein, at a price
equal to the Exercise Price as defined in Section 3 below, at any time beginning
on the Date of Issuance (defined below) and ending at 5:00 p.m., New York, New
York time the date that is five (5) years after the Date of Issuance (the
"Exercise Period"); provided, that, with respect to each "Put," as that term is
defined in that certain Investment Agreement (the "Investment Agreement") by and
between the initial Holder and Company, dated on or about April 13, 2000, "N"
shall equal ten percent (10%) of the number of shares of Common Stock purchased
by the Holder in that Put.

         Holder agrees with the Company that this Warrant to Purchase Common
Stock of the Company (this "Warrant") is issued and all rights hereunder shall
be held subject to all of the conditions, limitations and provisions set forth
herein.

         1.       Date of Issuance and Term.
                  --------------------------

         This Warrant shall be deemed to be issued on _____________, ______
("Date of Issuance"). The term of this Warrant is five (5) years from the Date
of Issuance.

         2.       Exercise.
                  ---------

         (a) MANNER OF EXERCISE. During the Exercise Period, this Warrant may be
exercised as to all or any lesser number of full shares of Common Stock covered
hereby

                                    EXHIBIT D

(the "Warrant Shares") upon surrender of this Warrant, with the Exercise Form
attached hereto as EXHIBIT A (the "Exercise Form") duly completed and executed,
together with the full Exercise Price (as defined below) for each share of
Common Stock as to which this Warrant is exercised, at the office of the
Company, Attention: Ross S. Seibert, CFO; 9191 Towne Centre Dr., Suite 420; San
Diego, CA 92122 Telephone: (858) 455-7127, ext. 3006, Facsimile: (858) 455-7295,
or at such other office or agency as the Company may designate in writing, by
overnight mail, with an advance copy of the Exercise Form sent to the Company
and its Transfer Agent by facsimile (such surrender and payment of the Exercise
Price hereinafter called the "Exercise of this Warrant").

         (b) DATE OF EXERCISE. The "Date of Exercise" of the Warrant shall be
defined as the date that the advance copy of the completed and executed Exercise
Form is sent by facsimile to the Company, provided that the original Warrant and
Exercise Form are received by the Company as soon as practicable thereafter.
Alternatively, the Date of Exercise shall be defined as the date the original
Exercise Form is received by the Company, if Holder has not sent advance notice
by facsimile. The Company shall not be required to deliver the shares of Common
Stock to the Holder until the requirements of Section 2(a) above are satisfied.

<PAGE>

         (c) CANCELLATION OF WARRANT. This Warrant shall be canceled upon the
Exercise of this Warrant, and, as soon as practical after the Date of Exercise,
Holder shall be entitled to receive Common Stock for the number of shares
purchased upon such Exercise of this Warrant, and if this Warrant is not
exercised in full, Holder shall be entitled to receive a new Warrant (containing
terms identical to this Warrant) representing any unexercised portion of this
Warrant in addition to such Common Stock.

         (d) HOLDER OF RECORD. Each person in whose name any Warrant for shares
of Common Stock is issued shall, for all purposes, be deemed to be the Holder of
record of such shares on the Date of Exercise of this Warrant, irrespective of
the date of delivery of the Common Stock purchased upon the Exercise of this
Warrant. Nothing in this Warrant shall be construed as conferring upon Holder
any rights as a stockholder of the Company.

         3.       Payment of Warrant Exercise Price.
                  ----------------------------------

         The Exercise Price ("Exercise Price"), shall initially equal $Y per
share ("Initial Exercise Price"), where "Y" shall equal 110% of the Market Price
for the applicable Put (as both are defined in the Investment Agreement) or, if
the Date of Exercise is more than six (6) months after the Date of Issuance, the
lesser of (i) the Initial Exercise Price or (ii) the "Lowest Reset Price," as
that term is defined below. The Company shall calculate a "Reset Price" on each
six-month anniversary date of the Date of Issuance which shall equal one hundred
and ten percent (110%) of the lowest closing bid price of the Common Stock for
the five (5) trading days ending on such six-month anniversary date of the Date
of Issuance. The "Lowest Reset Price" shall equal the lowest Reset Price
determined on any six-month anniversary date of the Date of Issuance preceding
the Date of Exercise, taking into account, as appropriate, any adjustments made
pursuant to Section 5 hereof.

         Payment of the Exercise Price may be made by either of the following,
or a combination thereof, at the election of Holder:

         (i)  CASH EXERCISE: cash, bank or cashiers check or wire transfer; or

         (ii) CASHLESS EXERCISE: subject to the last sentence of this Section 3,
surrender of this Warrant at the principal office of the Company together with
notice of cashless election, in which event the Company shall issue Holder a
number of shares of Common Stock computed using the following formula:

                                  X = Y (A-B)/A

where:   X = the number of shares of Common Stock to be issued to Holder.

         Y = the number of shares of Common Stock for which this Warrant is
             being exercised.

                  A = the Market Price of one (1) share of Common Stock (for
                  purposes of this Section 3(ii), the "Market Price" shall be
                  defined as the average Closing Price of the Common Stock for
                  the five (5) trading days prior to the Date of Exercise of
                  this Warrant (the "Average Closing Price"), as reported by the
                  O.T.C. Bulletin Board, National Association of Securities
                  Dealers Automated Quotation System ("Nasdaq") Small Cap
                  Market, or if the Common Stock is not traded on the Nasdaq
                  Small Cap Market, the Average Closing Price in any other
                  over-the-counter market; provided, however, that if the Common
                  Stock is listed on a stock exchange, the Market Price shall be
                  the Average Closing Price on such exchange for the five (5)
                  trading days prior to the date of exercise of the Warrants. If
                  the Common Stock is/was not traded during the five (5) trading
                  days prior to the Date of Exercise, then the closing price for
                  the last publicly traded day shall be deemed to be the closing
                  price for any and all (if applicable) days during such five
                  (5) trading day period.

                  B = the Exercise Price.

         For purposes hereof, the term "Closing Bid Price" shall mean the
closing bid price on the O.T.C. Bulletin Board, the National Market System
("NMS"), the New York Stock Exchange, the Nasdaq Small Cap Market, or if no
longer traded on the O.T.C. Bulletin Board, the NMS, the New York Stock
Exchange, the Nasdaq Small Cap Market, the "Closing Bid Price" shall equal the
closing price on the principal national securities exchange or the
over-the-counter system on which the Common Stock is so traded and, if not
available, the mean of the high and low prices on the principal national
securities exchange on which the Common Stock is so traded.

<PAGE>

         For purposes of Rule 144 and sub-section (d)(3)(ii) thereof, it is
intended, understood and acknowledged that the Common Stock issuable upon
exercise of this Warrant in a cashless exercise transaction shall be deemed to
have been acquired at the time this Warrant was issued. Moreover, it is
intended, understood and acknowledged that the holding period for the Common
Stock issuable upon exercise of this Warrant in a cashless exercise transaction
shall be deemed to have commenced on the date this Warrant was issued. If
requested by the Company's counsel, in conjunction with a cashless exercise
transaction, the Holder shall present Company with a letter from competent
counsel that the shares issued upon such cashless exercise are freely tradeable
pursuant to Rule 144.

         Notwithstanding anything to the contrary contained herein, this Warrant
may not be exercised in a cashless exercise transaction if, on the Date of
Exercise, the shares of Common Stock to be issued upon exercise of this Warrant
would upon such issuance be then registered pursuant to an effective
registration statement filed pursuant to that certain Registration Rights
Agreement dated on or about April 13, 2000 by and among the Company and certain
investors, or otherwise be registered under the Securities Act of 1933, as
amended.

         4.       Transfer and Registration.
                  --------------------------

         (a) TRANSFER RIGHTS. Subject to the provisions of Section 8 of this
Warrant, this Warrant may be transferred on the books of the Company, in whole
or in part, in person or by attorney, upon surrender of this Warrant properly
completed and endorsed. This Warrant shall be canceled upon such surrender and,
as soon as practicable thereafter, the person to whom such transfer is made
shall be entitled to receive a new Warrant or Warrants as to the portion of this
Warrant transferred, and Holder shall be entitled to receive a new Warrant as to
the portion hereof retained.

         (b) REGISTRABLE SECURITIES. The Common Stock issuable upon the exercise
of this Warrant constitutes "Registrable Securities" under that certain
Registration Rights Agreement dated on or about April 13, 2000 between the
Company and certain investors and, accordingly, has the benefit of the
registration rights pursuant to that agreement.

         5.       Anti-Dilution Adjustments.
                  --------------------------

         (a) STOCK DIVIDEND. If the Company shall at any time declare a dividend
payable in shares of Common Stock, then Holder, upon Exercise of this Warrant
after the record date for the determination of holders of Common Stock entitled
to receive such dividend, shall be entitled to receive upon Exercise of this
Warrant, in addition to the number of shares of Common Stock as to which this
Warrant is exercised, such additional shares of Common Stock as such Holder
would have received had this Warrant been exercised immediately prior to such
record date and the Exercise Price will be proportionately adjusted.

         (b) RECAPITALIZATION OR RECLASSIFICATION. If the Company shall at any
time effect a recapitalization, reclassification or other similar transaction of
such character that the shares of Common Stock shall be changed into or become
exchangeable for a larger or smaller number of shares, then upon the effective
date thereof, the number of shares of Common Stock which Holder shall be
entitled to purchase upon Exercise of this Warrant shall be increased or
decreased, as the case may be, in direct proportion to the increase or decrease
in the number of shares of Common Stock by reason of such recapitalization,
reclassification or similar transaction, and the Exercise Price shall be, in the
case of an increase in the number of shares, proportionally decreased and, in
the case of decrease in the number of shares, proportionally increased. The
Company shall give Holder the same notice it provides to holders of Common Stock
of any transaction described in this Section 5(b).

<PAGE>

         (c) DISTRIBUTIONS. If the Company shall at any time distribute for no
consideration to holders of Common Stock cash, evidences of indebtedness or
other securities or assets (other than cash dividends or distributions payable
out of earned surplus or net profits for the current or preceding years) then,
in any such case, Holder shall be entitled to receive, upon Exercise of this
Warrant, with respect to each share of Common Stock issuable upon such exercise,
the amount of cash or evidences of indebtedness or other securities or assets
which Holder would have been entitled to receive with respect to each such share
of Common Stock as a result of the happening of such event had this Warrant been
exercised immediately prior to the record date or other date fixing shareholders
to be affected by such event (the "Determination Date") or, in lieu thereof, if
the Board of Directors of the Company should so determine at the time of such
distribution, a reduced Exercise Price determined by multiplying the Exercise
Price on the Determination Date by a fraction, the numerator of which is the
result of such Exercise Price reduced by the value of such distribution
applicable to one share of Common Stock (such value to be determined by the
Board of Directors of the Company in its discretion) and the denominator of
which is such Exercise Price.

         (d) NOTICE OF CONSOLIDATION OR MERGER. In the event of a merger,
consolidation, exchange of shares, recapitalization, reorganization, or other
similar event, as a result of which shares of Common Stock shall be changed into
the same or a different number of shares of the same or another class or classes
of stock or securities or other assets of the Company or another entity or there
is a sale of all or substantially all the Company's assets (a "Corporate
Change"), then this Warrant shall be exerciseable into such class and type of
securities or other assets as Holder would have received had Holder exercised
this Warrant immediately prior to such Corporate Change; provided, however, that
Company may not affect any Corporate Change unless it first shall have given
thirty (30) days notice to Holder hereof of any Corporate Change.

         (e) EXERCISE PRICE ADJUSTED. As used in this Warrant, the term
"Exercise Price" shall mean the purchase price per share specified in Section 3
of this Warrant, until the occurrence of an event stated in subsection (a), (b)
or (c) of this Section 5, and thereafter shall mean said price as adjusted from
time to time in accordance with the provisions of said subsection. No such
adjustment under this Section 5 shall be made unless such adjustment would
change the Exercise Price at the time by $.01 or more; provided, however, that
all adjustments not so made shall be deferred and made when the aggregate
thereof would change the Exercise Price at the time by $.01 or more. No
adjustment made pursuant to any provision of this Section 5 shall have the net
effect of increasing the Exercise Price in relation to the split adjusted and
distribution adjusted price of the Common Stock. The number of shares of Common
Stock subject hereto shall increase proportionately with each decrease in the
Exercise Price.

         (f) ADJUSTMENTS: ADDITIONAL SHARES, SECURITIES OR ASSETS. In the event
that at any time, as a result of an adjustment made pursuant to this Section 5,
Holder shall, upon Exercise of this Warrant, become entitled to receive shares
and/or other securities or assets (other than Common Stock) then, wherever
appropriate, all references herein to shares of Common Stock shall be deemed to
refer to and include such shares and/or other securities or assets; and
thereafter the number of such shares and/or other securities or assets shall be
subject to adjustment from time to time in a manner and upon terms as nearly
equivalent as practicable to the provisions of this Section 5. Notwithstanding
the above, that the terms of this Section 5 shall not apply to a distribution of
restricted Rule 144 shares of common stock issued in conjunction with
acquisition transactions effected by the Company.

<PAGE>

         6.       Fractional Interests.
                  ---------------------

                  No fractional shares or scrip representing fractional shares
shall be issuable upon the Exercise of this Warrant, but on Exercise of this
Warrant, Holder may purchase only a whole number of shares of Common Stock. If,
on Exercise of this Warrant, Holder would be entitled to a fractional share of
Common Stock or a right to acquire a fractional share of Common Stock, such
fractional share shall be disregarded and the number of shares of Common Stock
issuable upon exercise shall be the next higher number of shares.

         7.       Reservation of Shares.
                  ----------------------

                  The Company shall at all times reserve for issuance such
number of authorized and unissued shares of Common Stock (or other securities
substituted therefor as herein above provided) as shall be sufficient for the
Exercise of this Warrant and payment of the Exercise Price. The Company
covenants and agrees that upon the Exercise of this Warrant, all shares of
Common Stock issuable upon such exercise shall be duly and validly issued, fully
paid, nonassessable and not subject to preemptive rights, rights of first
refusal or similar rights of any person or entity.

         8.       Restrictions on Transfer.
                  -------------------------

                  (a) REGISTRATION OR EXEMPTION REQUIRED. This Warrant has been
issued in a transaction exempt from the registration requirements of the Act by
virtue of Regulation D and exempt from state registration under applicable state
laws. The Warrant and the Common Stock issuable upon the Exercise of this
Warrant may not be pledged, transferred, sold or assigned except pursuant to an
effective registration statement or an exemption to the registration
requirements of the Act and applicable state laws.

                  (b) ASSIGNMENT. If Holder can provide the Company with
reasonably satisfactory evidence that the conditions of (a) above regarding
registration or exemption have been satisfied, Holder may sell, transfer,
assign, pledge or otherwise dispose of this Warrant, in whole or in part. Holder
shall deliver a written notice to Company, substantially in the form of the
Assignment attached hereto as EXHIBIT B, indicating the person or persons to
whom the Warrant shall be assigned and the respective number of warrants to be
assigned to each assignee. The Company shall effect the assignment within ten
(10) days, and shall deliver to the assignee(s) designated by Holder a Warrant
or Warrants of like tenor and terms for the appropriate number of shares.

         9.       Benefits of this Warrant.
                  -------------------------

                  Nothing in this Warrant shall be construed to confer upon any
person other than the Company and Holder any legal or equitable right, remedy or
claim under this Warrant and this Warrant shall be for the sole and exclusive
benefit of the Company and Holder.

<PAGE>

         10.      Applicable Law.
                  ---------------

                  This Warrant is issued under and shall for all purposes be
governed by and construed in accordance with the laws of the state of Utah,
without giving effect to conflict of law provisions thereof.

         11.      Loss of Warrant.
                  ----------------

                  Upon receipt by the Company of evidence of the loss, theft,
destruction or mutilation of this Warrant, and (in the case of loss, theft or
destruction) of indemnity or security reasonably satisfactory to the Company,
and upon surrender and cancellation of this Warrant, if mutilated, the Company
shall execute and deliver a new Warrant of like tenor and date.

         12.      Notice or Demands.
                  ------------------

                  Notices or demands pursuant to this Warrant to be given or
made by Holder to or on the Company shall be sufficiently given or made if sent
by certified or registered mail, return receipt requested, postage prepaid, and
addressed, until another address is designated in writing by the Company, to the
address set forth in Section 2(a) above. Notices or demands pursuant to this
Warrant to be given or made by the Company to or on Holder shall be sufficiently
given or made if sent by certified or registered mail, return receipt requested,
postage prepaid, and addressed, to the address of Holder set forth in the
Company's records, until another address is designated in writing by Holder.

         IN WITNESS WHEREOF, the undersigned has executed this Warrant as of the
_____ day of _______________, _____.

                                      Miracor Diagnostics, Inc.

                                      By4.8      Registration Rights Agreement dated April 13, 2000 between the Company
         and Swartz Private Equity, LLC related to the registration of shares

                          REGISTRATION RIGHTS AGREEMENT

         THIS REGISTRATION RIGHTS AGREEMENT (this "Agreement") is entered into
as of April 13, 2000, by and among Miracor Diagnostics, Inc., a corporation duly
incorporated and existing under the laws of the State of Utah (the "Company"),
and the subscriber as named on the signature page hereto (hereinafter referred
to as "Subscriber").

                                    RECITALS:

         WHEREAS, pursuant to the Company's offering ("Offering") of up to
Fifteen Million Dollars ($15,000,000), excluding any funds paid upon exercise of
the Warrants, of Common Stock of the Company pursuant to that certain Investment
Agreement of even date herewith (the "Investment Agreement") between the Company
and the Subscriber, the Company has agreed to sell and the Subscriber has agreed
to purchase, from time to time as provided in the Investment Agreement, shares
of the Company's Common Stock for a maximum aggregate offering amount of Fifteen
Million Dollars ($15,000,000);

         WHEREAS, pursuant to the terms of the Investment Agreement, the Company
has agreed to issue to the Subscriber the Commitment Warrants and, from time to
time, the Purchase Warrants, each as defined in the Investment Agreement, to
purchase a number of shares of Common Stock, exercisable for five (5) years from
their respective dates of issuance (collectively, the "Warrants"); and

         WHEREAS, pursuant to the terms of the Investment Agreement, the Company
has agreed to provide the Subscriber with certain registration rights with
respect to the Common Stock to be issued in the Offering and the Common Stock
issuable upon exercise of the Warrants as set forth in this Agreement.

                                     TERMS:

         NOW, THEREFORE, in consideration of the mutual promises,
representations, warranties, covenants and conditions set forth in this
Agreement and for other good and valuable consideration, the receipt and
sufficiency of which is hereby acknowledged, the parties hereto agree as
follows:

         1. CERTAIN DEFINITIONS. As used in this Agreement (including the
Recitals above), the following terms shall have the following meanings (such
meanings to be equally applicable to both singular and plural forms of the terms
defined):

            "Additional Registration Statement" shall have the meaning set forth
in Section 3(b).

            "Amended Registration Statement" shall have the meaning set forth in
Section 3(b).

            "Business Day" shall have the meaning set forth in the Investment
Agreement.

            "Closing Bid Price" shall have the meaning set forth in the
Investment Agreement.

            "Common Stock" shall mean the common stock, par value $0.15, of the
Company.

<PAGE>

            "Due Date" shall mean the date that is one hundred twenty (120) days
after the date of this Agreement.

            "Effective Date" shall have the meaning set forth in Section 2.4.

            "Exchange Act" shall mean the Securities Exchange Act of 1934, as
amended, together with the rules and regulations promulgated thereunder.

            "Filing Deadline" shall mean the date that is forty-five (45) days
after the date of this Agreement.

            "Investment Agreement" shall have the meaning set forth in the
Recitals hereto.

            "Holder" shall mean Subscriber, and any other person or entity
owning or having the right to acquire Registrable Securities or any permitted
assignee;

            "Piggyback Registration" and "Piggyback Registration Statement"
shall have the meaning set forth in Section 4.

            "Put" shall have the meaning as set forth in the Investment
Agreement.

            "Register," "Registered," and "Registration" shall mean and refer to
a registration effected by preparing and filing a registration statement or
similar document in compliance with the Securities Act and pursuant to Rule 415
under the Securities Act or any successor rule, and the declaration or ordering
of effectiveness of such registration statement or document.

            "Registrable Securities" shall have the meaning set forth in Section
2.1.

            "Registration Statement" shall have the meaning set forth in Section
2.2.

            "Rule 144" shall mean Rule 144, as amended, promulgated under the
Securities Act.

            "Securities Act" shall mean the Securities Act of 1933, as amended,
together with the rules and regulations promulgated thereunder.

            "Subscriber" shall have the meaning set forth in the preamble to
this Agreement. "Supplemental Registration Statement" shall have the meaning set
forth in Section 3(b).

            "Warrants" shall have the meaning set forth in the above Recitals.

            "Warrant Shares" shall mean shares of Common Stock issuable upon
exercise of any Warrant.

<PAGE>

         2.       REQUIRED REGISTRATION.

                  2.1 REGISTRABLE SECURITIES. "Registrable Securities" shall
mean those shares of the Common Stock of the Company together with any capital
stock issued in replacement of, in exchange for or otherwise in respect of such
Common Stock, that are: (i) issuable or issued to the Subscriber pursuant to the
Investment Agreement, and (ii) issuable or issued upon exercise of the Warrants;
provided, however, that notwithstanding the above, the following shall not be
considered Registrable Securities:

                      (a) any Common Stock which would otherwise be deemed to be
Registrable Securities, if and to the extent that those shares of Common Stock
may be resold in a public transaction without volume limitations or other
material restrictions without registration under the Securities Act, including
without limitation, pursuant to Rule 144 under the Securities Act; and

                      (b) any shares of Common Stock which have been sold in a
private transaction in which the transferor's rights under this Agreement are
not assigned.

                  2.2 FILING OF INITIAL REGISTRATION STATEMENT. The Company
shall, by the Filing Deadline, file a registration statement ("Registration
Statement") on Form SB-2 (or other suitable form, at the Company's discretion,
but subject to the reasonable approval of Subscriber), covering the resale of a
number of shares of Common Stock as Registrable Securities equal to at least
Twenty Million (20,000,000) shares of Common Stock and shall cover, to the
extent allowed by applicable law, such indeterminate number of additional shares
of Common Stock that may be issued or become issuable as Registrable Securities
by the Company pursuant to Rule 416 of the Securities Act. In the event that the
Company has not filed the Registration Statement by the Filing Deadline, then
the Company shall pay to Subscriber an amount equal to $500, in cash, for each
Business Day after the Filing Deadline until such Registration Statement is
filed, payable within ten (10) Business Days following the end of each calendar
month in which such payments accrue.

                  2.3      [INTENTIONALLY LEFT BLANK].

                  2.4 REGISTRATION EFFECTIVE DATE. The Company shall use its
best efforts to have the Registration Statement declared effective by the SEC
(the date of such effectiveness is referred to herein as the "Effective Date")
by the Due Date.

                  2.5      [INTENTIONALLY LEFT BLANK].

                  2.6      [INTENTIONALLY LEFT BLANK].
<PAGE>

                  2.7 SHELF REGISTRATION. The Registration Statement shall be
prepared as a "shelf" registration statement under Rule 415, and shall be
maintained effective until all Registrable Securities are resold pursuant to the
Registration Statement.

                  2.8 SUPPLEMENTAL REGISTRATION STATEMENT. Anytime the
Registration Statement does not cover a sufficient number of shares of Common
Stock to cover all outstanding Registrable Securities, the Company shall
promptly prepare and file with the SEC such Supplemental Registration Statement
and the prospectus used in connection with such registration statement as may be
necessary to comply with the provisions of the Securities Act with respect to
the disposition of all such Registrable Securities and shall use its best
efforts to cause such Supplemental Registration Statement to be declared
effective as soon as possible.

         3.       OBLIGATIONS OF THE COMPANY. Whenever required under this
Agreement to effect the registration of any Registrable Securities, the Company
shall, as expeditiously and reasonably possible:

                  (a) Prepare and file with the Securities and Exchange
Commission ("SEC") a Registration Statement with respect to such Registrable
Securities and use its best efforts to cause such Registration Statement to
become effective and to remain effective until all Registrable Securities are
resold pursuant to such Registration Statement, notwithstanding any Termination
or Automatic Termination (as each is defined in the Investment Agreement) of the
Investment Agreement.

                  (b) Prepare and file with the SEC such amendments and
supplements to such Registration Statement and the prospectus used in connection
with such Registration Statement ("Amended Registration Statement") or prepare
and file any additional registration statement ("Additional Registration
Statement," together with the Amended Registration Statement, "Supplemental
Registration Statements") as may be necessary to comply with the provisions of
the Securities Act with respect to the disposition of all securities covered by
such Supplemental Registration Statements or such prior registration statement
and to cover the resale of all Registrable Securities.

                  (c) Furnish to the Holders such numbers of copies of a
prospectus, including a preliminary prospectus, in conformity with the
requirements of the Securities Act, and such other documents as they may
reasonably request in order to facilitate the disposition of Registrable
Securities owned by them.

                  (d) Use its best efforts to register and qualify the
securities covered by such Registration Statement under such other securities or
Blue Sky laws of the jurisdictions in which the Holders are located, of such
other jurisdictions as shall be reasonably requested by the Holders of the
Registrable Securities covered by such Registration Statement and of all other
jurisdictions where legally required, provided that the Company shall not be
required in connection therewith or as a condition thereto to qualify to do
business or to file a general consent to service of process in any such states
or jurisdictions.

                  (e)      [INTENTIONALLY OMITTED].
<PAGE>

                  (f) As promptly as practicable after becoming aware of such
event, notify each Holder of Registrable Securities of the happening of any
event of which the Company has knowledge, as a result of which the prospectus
included in the Registration Statement, as then in effect, includes an untrue
statement of a material fact or omits to state a material fact required to be
stated therein or necessary to make the statements therein, in light of the
circumstances under which they were made, not misleading, use its best efforts
promptly to prepare a supplement or amendment to the Registration Statement to
correct such untrue statement or omission, and deliver a number of copies of
such supplement or amendment to each Holder as such Holder may reasonably
request.

                  (g) Provide Holders with notice of the date that a
Registration Statement or any Supplemental Registration Statement registering
the resale of the Registrable Securities is declared effective by the SEC, and
the date or dates when the Registration Statement is no longer effective.

                  (h) Provide Holders and their representatives the opportunity
and a reasonable amount of time, based upon reasonable notice delivered by the
Company, to conduct a reasonable due diligence inquiry of Company's pertinent
financial and other records and make available its officers and directors for
questions regarding such information as it relates to information contained in
the Registration Statement.

                  (i) Provide Holders and their representatives the opportunity
to review the Registration Statement and all amendments or supplements thereto
prior to their filing with the SEC by giving the Holder at least ten (10)
business days advance written prior to such filing.

                  (j) Provide each Holder with prompt notice of the issuance by
the SEC or any state securities commission or agency of any stop order
suspending the effectiveness of the Registration Statement or the initiation of
any proceeding for such purpose. The Company shall use its best efforts to
prevent the issuance of any stop order and, if any is issued, to obtain the
removal thereof at the earliest possible date.

                  (k) Use its best efforts to list the Registrable Securities
covered by the Registration Statement with all securities exchanges or markets
on which the Common Stock is then listed and prepare and file any required
filing with the NASD, American Stock Exchange, NYSE and any other exchange or
market on which the Common Stock is listed.

         4.       PIGGYBACK REGISTRATION. If anytime prior to the date that the
Registration Statement is declared effective or during any Ineffective Period
(as defined in the Investment Agreement) the Company proposes to register
(including for this purpose a registration effected by the Company for
shareholders other than the Holders) any of its Common Stock under the
Securities Act in connection with the public offering of such securities solely
for cash (other than a registration relating solely for the sale of securities
to participants in a Company stock plan or a registration on Form S-4 or Form
S-8 promulgated under the Securities Act or any successor or similar form
registering stock issuable upon a reclassification, upon a business combination
involving an exchange of securities or upon an exchange offer for securities of
the issuer or another entity), the Company shall, at such time, promptly give
each Holder written notice of such registration (a "Piggyback Registration
Statement"). Upon the written request of each Holder given by fax within ten
(10) days after mailing of such notice by the Company, the Company shall cause
to be included in such registration statement under the Securities Act all of
the Registrable Securities that each such Holder has requested to be registered
("Piggyback Registration") to the extent such inclusion does not violate the
registration rights of any other security holder of the company granted prior to
the date hereof; provided, however, that nothing herein shall prevent the
Company from withdrawing or abandoning such registration statement prior to its
effectiveness.

<PAGE>

         5.       LIMITATION ON OBLIGATIONS TO REGISTER UNDER A PIGGYBACK
REGISTRATION. In the case of a Piggyback Registration pursuant to an
underwritten public offering by the Company, if the managing underwriter
determines and advises in writing that the inclusion in the related Piggyback
Registration Statement of all Registrable Securities proposed to be included
would interfere with the successful marketing of the securities proposed to be
registered by the Company, then the number of such Registrable Securities to be
included in such Piggyback Registration Statement, to the extent any such
Registrable Securities may be included in such Piggyback Registration Statement,
shall be allocated among all Holders who had requested Piggyback Registration
pursuant to the terms hereof, in the proportion that the number of Registrable
Securities which each such Holder seeks to register bears to the total number of
Registrable Securities sought to be included by all Holders. If required by the
managing underwriter of such an underwritten public offering, the Holders shall
enter into an agreement limiting the number of Registrable Securities to be
included in such Piggyback Registration Statement and the terms, if any,
regarding the future sale of such Registrable Securities.

         6.       DISPUTE AS TO REGISTRABLE SECURITIES. In the event the Company
believes that shares sought to be registered under Section 2 or Section 4 by
Holders do not constitute "Registrable Securities" by virtue of Section 2.1 of
this Agreement, and the status of those shares as Registrable Securities is
disputed, the Company shall provide, at its expense, an Opinion of Counsel,
reasonably acceptable to the Holders of the Securities at issue (and
satisfactory to the Company's transfer agent to permit the sale and transfer),
that those securities may be sold immediately, without volume limitation or
other material restrictions, without registration under the Securities Act, by
virtue of Rule 144 or similar provisions.

         7.       FURNISH INFORMATION. At the Company's request, each Holder
shall furnish to the Company such information regarding Holder, the Registrable
Securities held by it, and the intended method of disposition of such securities
to the extent required to effect the registration of its Registrable Securities
or to determine that registration is not required pursuant to Rule 144 or other
applicable provision of the Securities Act. The Company shall include all
information provided by such Holder pursuant hereto in the Registration
Statement, substantially in the form supplied, except to the extent such
information is not permitted by law.

         8.       EXPENSES. All expenses, other than commissions and fees
and expenses of counsel to the selling Holders, incurred in connection with
registrations, filings or qualifications pursuant hereto, including (without
limitation) all registration, filing and qualification fees, printers' and
accounting fees, fees and disbursements of counsel for the Company, shall be
borne by the Company.

<PAGE>

         9.       INDEMNIFICATION. In the event any Registrable Securities
are included in a Registration Statement under this Agreement:

                  (a) To the extent permitted by law, the Company will indemnify
and hold harmless each Holder, the officers, directors, partners, legal counsel,
and accountants of each Holder, any underwriter (as defined in the Securities
Act, or as deemed by the Securities Exchange Commission, or as indicated in a
registration statement) for such Holder and each person, if any, who controls
such Holder or underwriter within the meaning of Section 15 of the Securities
Act or the Exchange Act, against any losses, claims, damages, or liabilities
(joint or several) to which they may become subject under the Securities Act,
the Exchange Act or other federal or state law, insofar as such losses, claims,
damages, or liabilities (or actions in respect thereof) arise out of or are
based upon any of the following statements or omissions: (i) any untrue
statement or alleged untrue statement of a material fact contained in such
registration statement, including any preliminary prospectus or final prospectus
contained therein or any amendments or supplements thereto, or (ii) the omission
or alleged omission to state therein a material fact required to be stated
therein, or necessary to make the statements therein not misleading, and the
Company will reimburse each such Holder, officer or director, underwriter or
controlling person for any legal or other expenses reasonably incurred by them
in connection with investigating or defending any such loss, claim, damage,
liability, or action; provided, however, that the indemnity agreement contained
in this subsection 9(a) shall not apply to amounts paid in settlement of any
such loss, claim, damage, liability, or action if such settlement is effected
without the consent of the Company (which consent shall not be unreasonably
withheld), nor shall the Company be liable in any such case for any such loss,
claim, damage, liability, or action to the extent that it arises out of or is
based upon a violation which occurs in reliance upon and in conformity with
written information furnished expressly for use in connection with such
registration by any such Holder, officer, director, underwriter or controlling
person; provided however, that the above shall not relieve the Company from any
other liabilities which it might otherwise have.

                  (b) Each Holder of any securities included in such
registration being effected shall indemnify and hold harmless the Company, the
officers, directors, partners, legal counsel, and accountants of the Company,
each underwriter and each other person, if any, who controls (within the meaning
of the Securities Act) the Company or such other indemnified party, against any
liability, joint or several, to which any such indemnified party may become
subject under the Securities Act or any other statute or at common law, insofar
as such liability (or actions in respect thereof) arises out of or is based upon
(i) any untrue statement or alleged untrue statement of any material fact
contained, on the effective date thereof, in any registration statement under
which securities were registered under the Securities Act at the request of such
Holder, any preliminary prospectus or final prospectus contained therein, or any
amendment or supplement thereto, or (ii) any omission or alleged omission by
such Holder to state therein a material fact required to be stated therein or
necessary to make the statements therein not misleading, to the extent, but only
to the extent, that such untrue statement or alleged untrue statement or
omission or alleged omission was made in such registration statement,
preliminary or final prospectus, amendment or supplement thereto in reliance
upon and in conformity with information furnished in writing to the Company by
such Holder specifically for use therein. Such Holder shall reimburse any
indemnified party for any legal fees incurred in investigating or defending any
such liability; PROVIDED, HOWEVER, that such Holder's obligations hereunder
shall be limited to an amount equal to the proceeds to such Holder of the
securities sold in any such registration; and PROVIDED FURTHER, that no Holder
shall be required to indemnify any party against any liability arising from any
untrue or misleading statement or omission contained in any preliminary
prospectus if such deficiency is corrected in the final prospectus or for any
liability which arises out of the failure of such party to deliver a prospectus
as required by the Securities Act.

<PAGE>

                  (c) Promptly after receipt by an indemnified party under this
Section 9 of notice of the commencement of any action (including any
governmental action), such indemnified party will, if a claim in respect thereof
is to be made against any indemnifying party under this Section 9, deliver to
the indemnifying party a written notice of the commencement thereof and the
indemnifying party shall have the right to participate in, and, to the extent
the indemnifying party so desires, jointly with any other indemnifying party
similarly noticed, to assume, the defense thereof with counsel mutually
satisfactory to the parties; provided, however, that an indemnified party shall
have the right to retain its own counsel, with the reasonably incurred fees and
expenses of one such counsel to be paid by the indemnifying party, if
representation of such indemnified party by the counsel retained by the
indemnifying party would be inappropriate due to actual or potential conflicting
interests between such indemnified party and any other party represented by such
counsel in such proceeding. The failure to deliver written notice to the
indemnifying party within a reasonable time of the commencement of any such
action, if materially prejudicial to its ability to defend such action, shall
relieve such indemnifying party of any liability to the indemnified party under
this Section 9, but the omission so to deliver written notice to the
indemnifying party will not relieve it of any liability that it may have to any
indemnified party otherwise than under this Section 9.

                  (d) In the event that the indemnity provided in paragraphs (a)
and/or (b) of this Section 9 is unavailable to or insufficient to hold harmless
an indemnified party for any reason, the Company and each Holder agree to
contribute to the aggregate claims, losses, damages and liabilities (including
legal or other expenses reasonably incurred in connection with investigating or
defending same) (collectively "Losses") to which the Company and one or more of
the Holders may be subject in such proportion as is appropriate to reflect the
relative fault of the Company and the Holders in connection with the statements
or omissions which resulted in such Losses. Relative fault shall be determined
by reference to whether any alleged untrue statement or omission relates to
information provided by the Company or by the Holders. The Company and the
Holders agree that it would not be just and equitable if contribution were
determined by pro rata allocation or any other method of allocation that does
not take account of the equitable considerations referred to above.
Notwithstanding the provisions of this paragraph (d), no person guilty of
fraudulent misrepresentation (within the meaning of Section 11(f) of the
Securities Act) shall be entitled to contribution from any person who was not
guilty of such fraudulent misrepresentation. For purposes of this Section 9,
each person who controls a Holder of Registrable Securities within the meaning
of either the Securities Act or the Exchange Act and each director, officer,
partner, employee and agent of a Holder shall have the same rights to
contribution as such holder, and each person who controls the Company within the
meaning of either the Securities Act or the Exchange Act and each director and
officer of the Company shall have the same rights to contribution as the
Company, subject in each case to the applicable terms and conditions of this
paragraph (d).

                  (e) The obligations of the Company and Holders under this
Section 9 shall survive the resale, if any, of the Common Stock, the completion
of any offering of Registrable Securities in a Registration Statement under this
Agreement, and otherwise.

<PAGE>

         10.      REPORTS UNDER EXCHANGE ACT. With a view to making
available to the Holders the benefits of Rule 144 promulgated under the
Securities Act and any other rule or regulation of the SEC that may at any time
permit a Holder to sell securities of the Company to the public without
registration, the Company agrees to:

                  (a) make and keep public information available, as those terms
are understood and defined in Rule 144; and

                  (b) use its best efforts to file with the SEC in a timely
manner all reports and other documents required of the Company under the
Securities Act and the Exchange Act.

         11.      AMENDMENT OF REGISTRATION RIGHTS. Any provision of this
Agreement may be amended and the observance thereof may be waived (either
generally or in a particular instance and either retroactively or
prospectively), only with the written consent of the Company and the written
consent of each Holder affected thereby. Any amendment or waiver effected in
accordance with this paragraph shall be binding upon each Holder, each future
Holder, and the Company.

         12.      NOTICES. All notices required or permitted under this
Agreement shall be made in writing signed by the party making the same, shall
specify the section under this Agreement pursuant to which it is given, and
shall be addressed if to (i) the Company at: Miracor Diagnostics, Inc.; Attn:
Ross S. Seibert, CFO; 9191 Towne Centre Dr., Suite 420; San Diego, CA 92122;
Telephone: (858) 455-7127, Facsimile: (858) 455-7295 (or at such other location
as directed by the Company in writing) and (ii) the Holders at their respective
last address as the party as shown on the records of the Company. Any notice,
except as otherwise provided in this Agreement, shall be made by fax and shall
be deemed given at the time of transmission of the fax.

         13.      TERMINATION. This Agreement shall terminate on the date
all Registrable Securities cease to exist (as that term is defined in Section
2.1 hereof); but without prejudice to (i) the parties' rights and obligations
arising from breaches of this Agreement occurring prior to such termination (ii)
other indemnification obligations under this Agreement.

         14.      ASSIGNMENT. No assignment, transfer or delegation, whether
by operation of law or otherwise, of any rights or obligations under this
Agreement by the Company or any Holder, respectively, shall be made without the
prior written consent of the majority in interest of the Holders or the Company,
respectively; provided that the rights of a Holder may be transferred to a
subsequent holder of the Holder's Registrable Securities (provided such
transferee shall provide to the Company, together with or prior to such
transferee's request to have such Registrable Securities included in a
Registration, a writing executed by such transferee agreeing to be bound as a
Holder by the terms of this Agreement), and the Company hereby agrees to file an
amended registration statement including such transferee or a selling security
holder thereunder; and provided further that the Company may transfer its rights
and obligations under this Agreement to a purchaser of all or a substantial
portion of its business if the obligations of the Company under this Agreement
are assumed in connection with such transfer, either by merger or other
operation of law (which may include without limitation a transaction whereby the
Registrable Securities are converted into securities of the successor in
interest) or by specific assumption executed by the transferee.

<PAGE>

         15.      GOVERNING LAW. This Agreement shall be governed by and
construed in accordance with the laws of the State of Georgia applicable to
agreements made in and wholly to be performed in that jurisdiction, except for
matters arising under the Securities Act or the Exchange Act, which matters
shall be construed and interpreted in accordance with such laws. Any dispute
arising out of or relating to this Agreement or the breach, termination or
validity hereof shall be finally settled by the federal or state courts located
in FULTON COUNTY, GEORGIA.

         16.      EXECUTION IN COUNTERPARTS PERMITTED. This Agreement may be
executed in any number of counterparts, each of which shall be enforceable
against the parties actually executing such counterparts, and all of which
together shall constitute one (1) instrument.

         17.      SPECIFIC PERFORMANCE. The Holder shall be entitled to the
remedy of specific performance in the event of the Company's breach of this
Agreement, the parties agreeing that a remedy at law would be inadequate.

         18.      INDEMNITY. Each party shall indemnify each other party
against any
and all claims, damages (including reasonable attorney's fees), and expenses
arising out of the first party's breach of any of the terms of this Agreement.

         19.      ENTIRE AGREEMENT; WRITTEN AMENDMENTS REQUIRED. This
Agreement, including the Exhibits attached hereto, the Investment Agreement, the
Common Stock certificates, and the other documents delivered pursuant hereto
constitute the full and entire understanding and agreement between the parties
with regard to the subjects hereof and thereof, and no party shall be liable or
bound to any other party in any manner by any warranties, representations or
covenants except as specifically set forth herein or therein. Except as
expressly provided herein, neither this Agreement nor any term hereof may be
amended, waived, discharged or terminated other than by a written instrument
signed by the party against whom enforcement of any such amendment, waiver,
discharge or termination is sought.

         IN WITNESS WHEREOF, the undersigned have executed this Agreement as of
this 13th day of April, 2000.

                                  MIRACOR DIAGNOSTICS, INC.

                                  By:  /S/ M. Lee Hulsebus
                                     -------------------------------------------
                                           M. Lee Hulsebus, Chairman & CEO

                         Address:
                                  9191 Towne Centre Dr., Suite 420
                                  San Diego, CA 92122
                                  Telephone: (858) 455-7127, x3006
                                  Facsimile: (858) 455-7295

                                  SUBSCRIBER:
                                  SWARTZ PRIVATE EQUITY, LLC.

                                  By:  /S/ Eric S. Swartz
                                     -------------------------------------------
                                          Eric S. Swartz, Manager

                         Address:
                                  1080 Holcomb Bridge Road
                                  Bldg. 200, Suite 285
                                  Roswell, GA  30076
                                  Telephone: (770) 640-8130
                                  Facsimile: (770) 640-7150

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00010-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00010-of-00352.parquet"}]]