Document:

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                                                                    Exhibit 10.7

THE REGISTERED HOLDER OF THIS PURCHASE OPTION, BY ITS ACCEPTANCE HEREOF, AGREES
THAT IT WILL NOT SELL, TRANSFER OR ASSIGN THIS PURCHASE OPTION, EXCEPT AS HEREIN
PROVIDED, AND THE REGISTERED HOLDER OF THIS PURCHASE OPTION AGREES THAT IT WILL
NOT SELL, TRANSFER, ASSIGN, PLEDGE OR HYPOTHECATE THIS PURCHASE OPTION FOR A
PERIOD OF ONE YEAR FOLLOWING THE EFFECTIVE DATE (DEFINED BELOW) TO ANYONE OTHER
THAN (I) MAXIM GROUP LLC OR ITS AFFILIATES ("MAXIM") OR AN UNDERWRITER OR A
SELECTED DEALER IN CONNECTION WITH THE OFFERING (DEFINED HEREIN), OR (II) A BONA
FIDE OFFICER, PARTNER OR EMPLOYEE OF MAXIM OR OF ANY SUCH UNDERWRITER OR
SELECTED DEALER.

THIS PURCHASE OPTION IS NOT EXERCISABLE PRIOR TO THE LATER OF (I)
______________, 2006 AND (II) THE CONSUMMATION BY HEALTHCARE ACQUISITION
CORPORATION ("COMPANY") OF A MERGER, CAPITAL STOCK EXCHANGE, ASSET ACQUISITION
OR OTHER SIMILAR BUSINESS COMBINATION ("BUSINESS COMBINATION") (AS DESCRIBED
MORE FULLY IN THE COMPANY'S REGISTRATION STATEMENT (DEFINED HEREIN)). THIS
PURCHASE OPTION SHALL BE VOID AFTER 5:00 P.M, NEW YORK CITY TIME, ON
_____________, 2010.

                              UNIT PURCHASE OPTION

                               FOR THE PURCHASE OF

                                  400,000 UNITS

                                       OF

                          HEALTHCARE ACQUISITION CORP.

        1.  Purchase Option.

              THIS CERTIFIES THAT, in consideration of $100 duly paid by or on
behalf of Maxim Partners LLC (collectively, with its successors and permitted
assigns and/or transferees, the "HOLDER"), as registered owner of this Purchase
Option, to Healthcare Acquisition Corp. (the "COMPANY"), Holder is entitled, at
any time or from time to time upon the later of (i) the consummation of a
Business Combination and (ii) ___________, 2006 ("COMMENCEMENT DATE"), and at or
before 5:00 p.m., Eastern Time, _____________, 2010 ("EXPIRATION DATE"), but not
thereafter, to subscribe for, purchase and receive, in whole or in part, up to
Four Hundred Thousand (400,000) units (the "UNITS") of the Company, each Unit
consisting of one share of common stock of the Company, par value $.0001 per
share (the "COMMON STOCK"), and one warrant (the "WARRANT(S)") expiring four
years from the effective date ("EFFECTIVE DATE") of the registration statement
("REGISTRATION STATEMENT") pursuant to which Units are offered for sale to the
public (the "OFFERING"). Each Warrant is exercisable at $6.00 per share (as
adjusted from time to time) and is the same as the warrants included in the
Units being registered for sale to the public by way of the Registration
Statement, except that the Warrants underlying the Units comprising this
Purchase Option have an exercise price of $7.50 per share. If the Expiration
Date is a day on which banking institutions are authorized by law to close, then
this Purchase Option may be exercised on the next succeeding day which is not
such a day in accordance with the terms herein. During the period ending on the
Expiration Date, the Company agrees not to take any action that would terminate
the Purchase Option. This Purchase Option is initially exercisable at $10.00 per
Unit so purchased; provided, however, that upon the occurrence of any of the
events specified in Section 6 hereof, the rights granted by this Purchase
Option, including the exercise price per Unit and the number of Units (and
shares of Common Stock and Warrants) to be received upon such exercise, shall be
adjusted as therein specified. The term "EXERCISE PRICE" shall mean the initial
exercise price or the adjusted exercise price, depending on the context.

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         2. Exercise.

              2.1 Exercise Form. In order to exercise this Purchase Option, the
exercise form attached hereto must be duly executed and completed and delivered
to the Company, together with this Purchase Option and payment of the Exercise
Price for the Units being purchased payable in cash or by certified check or
official bank check. If the subscription rights represented hereby shall not be
exercised at or before 5:00 p.m., New York City Time, on the Expiration Date
this Purchase Option shall become and be void without further force or effect,
and all rights represented hereby shall cease and expire.

              2.2 Legend. Each certificate for the securities purchased under
this Purchase Option shall bear a legend as follows unless such securities have
been registered under the Securities Act of 1933, as amended (the "ACT"):

                  "The securities represented by this certificate have not been
                  registered under the Securities Act of 1933, as amended
                  ("Act") or applicable state law. The securities may not be
                  offered for sale, sold or otherwise transferred except
                  pursuant to an effective registration statement under the Act,
                  or pursuant to an exemption from registration under the Act
                  and applicable state law."

                                      -2-
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              2.3 Cashless Exercise. In lieu of the payment of the Exercise
Price multiplied by the number of Units for which this Purchase Option is
exercisable (and in lieu of being entitled to receive Common Stock and Warrants)
in the manner required by Section 2.1, the Holder shall have the right (but not
the obligation) to convert any exercisable but unexercised portion of this
Purchase Option into Units (the "CONVERSION RIGHT") as follows: upon exercise of
the Conversion Right, the Company shall deliver to the Holder (without payment
by the Holder of any of the Exercise Price in cash) that number of shares of
Common Stock and Warrants comprising that number of Units equal to the quotient
obtained by dividing (x) the "Value" (as defined below) of the portion of the
Purchase Option being converted by (y) the Current Market Value (as defined
below). The "VALUE" of the portion of the Purchase Option being converted shall
equal the remainder derived from subtracting (a) (i) the Exercise Price
multiplied by (ii) the number of Units underlying the portion of this Purchase
Option being converted from (b) the Current Market Value of a Unit multiplied by
the number of Units underlying the portion of the Purchase Option being
converted. As used herein, the term "CURRENT MARKET VALUE" per Unit at any date
means: (A) in the event that neither the Units nor Warrants are still trading,
the remainder derived from subtracting (x) the exercise price of the Warrants
multiplied by the number of shares of Common Stock issuable upon exercise of the
Warrants underlying one Unit from (y) (i) the Current Market Price of the Common
Stock multiplied by (ii) the number of shares of Common Stock underlying one
Unit, which shall include the shares of Common Stock underlying the Warrants
included in such Unit; (B) in the event that the Units, Common Stock and
Warrants are still trading, (i) if the Units are listed on a national securities
exchange or quoted on the Nasdaq National Market, Nasdaq SmallCap Market or NASD
OTC Bulletin Board (or successor such as the Bulletin Board Exchange), the last
sale price of the Units in the principal trading market for the Units as
reported by the exchange, Nasdaq or the NASD, as the case may be, on the last
trading day preceding the date in question; or (ii) if the Units are not listed
on a national securities exchange or quoted on the Nasdaq National Market,
Nasdaq SmallCap Market or the NASD OTC Bulletin Board (or successor exchange),
but is traded in the residual over-the-counter market, the closing bid price for
Units on the last trading day preceding the date in question for which such
quotations are reported by the Pink Sheets, LLC or similar publisher of such
quotations; and (C) in the event that the Units are not still trading but the
Common Stock and Warrants underlying the Units are still trading, the Current
Market Price of the Common Stock plus the product of (x) the Current Market
Price of the Warrants and (y) the number of shares of Common Stock underlying
the Warrants included in one Unit. The "CURRENT MARKET PRICE" shall mean (i) if
the Common Stock (or Warrants, as the case may be) is listed on a national
securities exchange or quoted on the Nasdaq National Market, Nasdaq SmallCap
Market or NASD OTC Bulletin Board (or successor such as the Bulletin Board
Exchange), the last sale price of the Common Stock (or Warrants) in the
principal trading market for the Common Stock as reported by the exchange,
Nasdaq or the NASD, as the case may be, on the last trading day preceding the
date in question; (ii) if the Common Stock (or Warrants, as the case may be) is
not listed on a national securities exchange or quoted on the Nasdaq National
Market, Nasdaq SmallCap Market or the NASD OTC Bulletin Board (or successor
exchange), but is traded in the residual over-the-counter market, the closing
bid price for the Common Stock (or Warrants) on the last trading day preceding
the date in question for which such quotations are reported by the Pink Sheets,
LLC or similar publisher of such quotations; and (iii) if the fair market value
of the Common Stock cannot be determined pursuant to clause (i) or (ii) above,
such price as the Board of Directors of the Company shall determine, in good
faith.

              2.4 Mechanics of Cashless Exercise. The Cashless Exercise Right
may be exercised by the Holder on any business day on or after the Commencement
Date and not later than the Expiration Date by delivering the Purchase Option
with the duly executed exercise form attached hereto with the cashless exercise
section completed to the Company, exercising the Cashless Exercise Right and
specifying the total number of Units the Holder will purchase pursuant to such
Cashless Exercise Right.

                                      -3-
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         3. Transfer.

              3.1 General Restrictions. The registered Holder of this Purchase
Option, by its acceptance hereof, agrees that it will not sell, transfer,
assign, pledge or hypothecate this Purchase Option for a period of one year
following the Effective Date to anyone other than (i) Maxim or an underwriter or
a selected dealer in connection with the Offering, or (ii) a bona fide officer
or partner of Maxim or of any such underwriter or selected dealer. On and after
the first anniversary of the Effective Date, transfers to others may be made
subject to compliance with or exemptions from applicable securities laws. In
order to make any permitted assignment, the Holder must deliver to the Company
the assignment form attached hereto duly executed and completed, together with
the Purchase Option and payment of all transfer taxes, if any, payable in
connection therewith. The Company shall within five business days transfer this
Purchase Option on the books of the Company and shall execute and deliver a new
Purchase Option or Purchase Options of like tenor to the appropriate assignee(s)
expressly evidencing the right to purchase the aggregate number of Units
purchasable hereunder or such portion of such number as shall be contemplated by
any such assignment.

              3.2 Restrictions Imposed by the Act. The securities evidenced by
this Purchase Option shall not be transferred unless and until (i) the Company
has received the opinion of counsel for the Holder that the securities may be
transferred pursuant to an exemption from registration under the Act and
applicable state securities laws, the availability of which is established to
the reasonable satisfaction of the Company (the Company hereby agreeing that the
opinion of Lowenstein Sandler PC shall be deemed satisfactory evidence of the
availability of an exemption), or (ii) a registration statement or a
post-effective amendment to the Registration Statement relating to such
securities has been filed by the Company and declared effective by the
Securities and Exchange Commission and compliance with applicable state
securities law has been established.

         4. New Purchase Options to be Issued.

              4.1 Partial Exercise or Transfer. Subject to the restrictions in
Section 3 hereof, this Purchase Option may be exercised or assigned in whole or
in part. In the event of the exercise or assignment hereof in part only, upon
surrender of this Purchase Option for cancellation, together with the duly
executed exercise or assignment form and, except in the case of an exercise of
this Purchase Option contemplated by Section 2.3 hereof, funds sufficient to pay
any Exercise Price and/or transfer tax, the Company shall cause to be delivered
to the Holder without charge a new Purchase Option of like tenor to this
Purchase Option in the name of the Holder evidencing the right of the Holder to
purchase the number of Units purchasable hereunder as to which this Purchase
Option has not been exercised or assigned.

              4.2 Lost Certificate. Upon receipt by the Company of evidence
satisfactory to it of the loss, theft, destruction or mutilation of this
Purchase Option and of reasonably satisfactory indemnification or the posting of
a bond, the Company shall execute and deliver a new Purchase Option of like
tenor and date. Any such new Purchase Option executed and delivered as a result
of such loss, theft, mutilation or destruction shall constitute a substitute
contractual obligation on the part of the Company.

                                      -4-
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      5.  Registration Rights.

          5.1   Demand Registration.

                5.1.1 Grant of Right. The Company, upon written demand (an
"INITIAL DEMAND NOTICE") of the Holder(s) of at least 51% of the Purchase
Options and/or the underlying Units and/or the underlying securities (the
"MAJORITY HOLDERS"), agrees to register on one occasion, all or any portion of
the Purchase Options requested by the Majority Holders in the Initial Demand
Notice and all of the securities underlying such Purchase Options, including the
Units, Common Stock, the Warrants and the Common Stock underlying the Warrants
(collectively, the "REGISTRABLE SECURITIES"). On such occasion, the Company will
file a registration statement or a post-effective amendment to the Registration
Statement covering the Registrable Securities within sixty days after receipt of
the Initial Demand Notice and use its best efforts to have such registration
statement or post-effective amendment declared effective as soon as possible
thereafter. The demand for registration may be made at any time during a period
of five years beginning on the Effective Date. The Company covenants and agrees
to give written notice of its receipt of any Initial Demand Notice by any
Holder(s) to all other registered Holders of the Purchase Options and/or the
Registrable Securities within ten days from the date of the receipt of any such
Initial Demand Notice.

                5.1.2 Terms. The Company shall bear all fees and expenses
attendant to registering the Registrable Securities, including the expenses of
any legal counsel selected by the Holders to represent them in connection with
the sale of the Registrable Securities, but the Holders shall pay any and all
underwriting commissions. The Company agrees to use its reasonable best efforts
to qualify or register the Registrable Securities in such States as are
reasonably requested by the Majority Holder(s); provided, however, that in no
event shall the Company be required to register the Registrable Securities in a
State in which such registration would cause (i) the Company to be obligated to
qualify to do business in such State, or would subject the Company to taxation
as a foreign corporation doing business in such jurisdiction or (ii) the
principal stockholders of the Company to be obligated to escrow their shares of
capital stock of the Company. The Company shall cause any registration statement
or post-effective amendment filed pursuant to the demand rights granted under
Section 5.1.1 to remain effective for a period of nine consecutive months from
the effective date of such registration statement or post-effective amendment.

         5.2   "Piggy-Back" Registration.

                5.2.1 Grant of Right. In addition to the demand right of
registration, the Holders of the Purchase Options shall have the right for a
period of seven years commencing on the Effective Date, to include the
Registrable Securities as part of any other registration of securities filed by
the Company (other than in connection with a transaction contemplated by Rule
145(a) promulgated under the Act or pursuant to Form S-8); provided, however,
that if, in the written opinion of the Company's managing underwriter or
underwriters, if any, for such offering, the inclusion of the Registrable
Securities, when added to the securities being registered by the Company or the
selling stockholder(s), will exceed the maximum amount of the Company's
securities (the "MAXIMUM NUMBER OF SHARES") which can be marketed (i) at a price
reasonably related to their then current market value, and (ii) without
materially and adversely affecting the entire offering, then the Company shall
include in any such registration:

                                      -5-
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                (i) If the registration is undertaken for the Company's account:
(A) first, the shares of Common Stock or other securities that the Company
desires to sell that can be sold without exceeding the Maximum Number of Shares;
(B) second, to the extent that the Maximum Number of Shares has not been reached
under the foregoing clause (A), the shares of Common Stock, if any, including
the Registrable Securities, as to which registration has been requested pursuant
to written contractual piggy-back registration rights of security holders (pro
rata in accordance with the number of shares of Common Stock which each such
person has actually requested to be included in such registration, regardless of
the number of shares of Common Stock with respect to which such persons have the
right to request such inclusion) that can be sold without exceeding the Maximum
Number of Shares; and

                (ii) If the registration is a "demand" registration undertaken
at the demand of persons other than the holders of Registrable Securities
pursuant to written contractual arrangements with such persons, (A) first, the
shares of Common Stock for the account of the demanding persons that can be sold
without exceeding the Maximum Number of Shares; (B) second, to the extent that
the Maximum Number of Shares has not been reached under the foregoing clause
(A), the shares of Common Stock or other securities that the Company desires to
sell that can be sold without exceeding the Maximum Number of Shares; and (C)
third, to the extent that the Maximum Number of Shares has not been reached
under the foregoing clauses (A) and (B), the Registrable Securities as to which
registration has been requested under this Section 5.2 (pro rata in accordance
with the number of shares of Registrable Securities held by each such holder);
and (D) fourth, to the extent that the Maximum Number of Shares has not been
reached under the foregoing clauses (A), (B) and (C), the shares of Common
Stock, if any, as to which registration has been requested pursuant to written
contractual piggy-back registration rights which other shareholders desire to
sell that can be sold without exceeding the Maximum Number of Shares.

                5.2.2 Terms. The Company shall bear all fees and expenses
attendant to registering the Registrable Securities, including the expenses of
any legal counsel selected by the Holders to represent them in connection with
the sale of the Registrable Securities but the Holders shall pay any and all
underwriting commissions related to the Registrable Securities. In the event of
such a proposed registration, the Company shall furnish the then Holders of
outstanding Registrable Securities with not less than fifteen days written
notice prior to the proposed date of filing of such registration statement. Such
notice to the Holders shall continue to be given for each applicable
registration statement filed (during the period in which the Purchase Option is
exercisable) by the Company until such time as all of the Registrable Securities
have been registered and sold. The holders of the Registrable Securities shall
exercise the "piggy-back" rights provided for herein by giving written notice,
within ten days of the receipt of the Company's notice of its intention to file
a registration statement. The Company shall cause any registration statement
filed pursuant to the above "piggyback" rights to remain effective for at least
nine months from the date that the Holders of the Registrable Securities are
first given the opportunity to sell all of such securities. The Company agrees,
at its sole expenses, to use its reasonable best efforts to qualify or register
the Registrable Securities in such States as are reasonably requested by the
Majority Holder(s); provided, however, that in no event shall the Company be
required to register the Registrable Securities in a State in which such
registration would cause (i) the Company to be obligated to qualify to do
business in such State, or would subject the Company to taxation as a foreign
corporation doing business in such jurisdiction or (ii) the principal
stockholders of the Company to be obligated to escrow their shares of capital
stock of the Company.

                                      -6-
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            5.3 Damages. Should the registration or the effectiveness thereof
required by Sections 5.1 and 5.2 hereof be delayed by the Company or the Company
otherwise materially fails to comply with such provisions, the Company shall, in
addition to any other equitable or other relief available to the Holder(s), be
liable for any and all incidental, special and consequential damages sustained
by the Holder(s), including, but not limited to, the loss of any profits that
might have been received by the holder upon the sale of shares of Common Stock
or Warrants (and shares of Common Stock underlying the Warrants) underlying this
Purchase Option.

            5.4 General Terms.

                5.4.1 Indemnification. The Company shall indemnify the Holder(s)
of the Registrable Securities to be sold pursuant to any registration statement
hereunder and each person, if any, who controls such Holders within the meaning
of Section 15 of the Act or Section 20(a) of the Securities Exchange Act of
1934, as amended (the "EXCHANGE ACt"), and any of their respective heirs,
successors, permitted assigns and transfers, and agents and representatives,
against all loss, claim, damage, expense or liability (including all reasonable
attorneys' fees and other expenses reasonably incurred in investigating,
preparing or defending against litigation, commenced or threatened, or any claim
whatsoever whether arising out of any action between the underwriter and the
Company or between the underwriter and any third party or otherwise) to which
any of them may become subject under the Act, the Exchange Act or otherwise,
arising from such registration statement but only to the same extent and with
the same effect as the provisions pursuant to which the Company has agreed to
indemnify the underwriters contained in Section 6 of the Underwriting Agreement
between the Company, Maxim and the other underwriters named therein dated the
Effective Date. The Holder(s) of the Registrable Securities to be sold pursuant
to such registration statement, and their successors and assigns, shall
severally, and not jointly, indemnify the Company, its officers and directors
and each person, if any, who controls the Company within the meaning of Section
15 of the Act or Section 20(a) of the Exchange Act, against all loss, claim,
damage, expense or liability (including all reasonable attorneys' fees and other
expenses reasonably incurred in investigating, preparing or defending against
any claim whatsoever) to which they may become subject under the Act, the
Exchange Act or otherwise, arising from information furnished by or on behalf of
such Holders, or their successors or assigns, in writing, for specific inclusion
in such registration statement to the same extent and with the same effect as
the provisions contained in Section 5 of the Underwriting Agreement pursuant to
which the underwriters have agreed to indemnify the Company.

                                      -7-
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                5.4.2 Exercise of Purchase Options. Nothing contained in this
Purchase Option shall be construed as requiring the Holder(s) to exercise their
Purchase Options or Warrants underlying such Purchase Options prior to or after
the initial filing of any registration statement or the effectiveness thereof.

                5.4.3 Documents Delivered to Holders. The Company shall furnish
Maxim, as representative of the Holders participating in any of the foregoing
offerings, a signed counterpart, addressed to the participating Holders, of (i)
an opinion of counsel to the Company, dated the effective date of such
registration statement (and, if such registration includes an underwritten
public offering, an opinion dated the date of the closing under any underwriting
agreement related thereto), and (ii) a "cold comfort" letter dated the effective
date of such registration statement (and, if such registration includes an
underwritten public offering, a letter dated the date of the closing under the
underwriting agreement) signed by the independent public accountants who have
issued a report on the Company's financial statements included in such
registration statement, in each case covering substantially the same matters
with respect to such registration statement (and the prospectus included
therein) and, in the case of such accountants' letter, with respect to events
subsequent to the date of such financial statements, as are customarily covered
in opinions of issuer's counsel and in accountants' letters delivered to
underwriters in underwritten public offerings of securities. The Company shall
also deliver promptly to Maxim, as representative of the Holders participating
in the offering, the correspondence and memoranda described below and copies of
all correspondence between the Commission and the Company, its counsel or
auditors and all memoranda relating to discussions with the Commission or its
staff with respect to the registration statement and permit Maxim, as
representative of the Holders, to do such investigation, upon reasonable advance
notice, with respect to information contained in or omitted from the
registration statement as it deems reasonably necessary to comply with
applicable securities laws or rules of the National Association of Securities
Dealers, Inc. (the "NASD"). Such investigation shall include access to books,
records and properties and opportunities to discuss the business of the Company
with its officers and independent auditors, all to such reasonable extent and at
such reasonable times and as often as Maxim, as representative of the Holders,
shall reasonably request. The Company shall not be required to disclose any
confidential information or other records to Maxim, as representative of the
Holders, or to any other person, until and unless such persons shall have
entered into reasonable confidentiality agreements (in form and substance
reasonably satisfactory to the Company), with the Company with respect thereto.

                                      -8-
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                5.4.4 Underwriting Agreement. The Company shall enter into an
underwriting agreement with the managing underwriter(s), if any, selected by any
Holders whose Registrable Securities are being registered pursuant to this
Section 5, which managing underwriter shall be reasonably acceptable to the
Company. Such agreement shall be reasonably satisfactory in form and substance
to the Company, each Holder and such managing underwriters, and shall contain
such representations, warranties and covenants by the Company and such other
terms as are customarily contained in agreements of that type used by the
managing underwriter. The Holders shall be parties to any underwriting agreement
relating to an underwritten sale of their Registrable Securities and may, at
their option, require that any or all the representations, warranties and
covenants of the Company to or for the benefit of such underwriters shall also
be made to and for the benefit of such Holders. Such Holders shall not be
required to make any representations or warranties to or agreements with the
Company or the underwriters except as they may relate to such Holders and their
intended methods of distribution. Such Holders, however, shall agree to such
covenants and indemnification and contribution obligations for selling
stockholders as are customarily contained in agreements of that type used by the
managing underwriter. Further, such Holders shall execute appropriate custody
agreements and otherwise cooperate fully in the preparation of the registration
statement and other documents relating to any offering in which they include
securities pursuant to this Section 5. Each Holder shall also furnish to the
Company such information regarding itself, the Registrable Securities held by
it, and the intended method of disposition of such securities as shall be
reasonably required to effect the registration of the Registrable Securities.

                5.4.5 Rule 144 Sale. Notwithstanding anything contained in this
Section 5 to the contrary, the Company shall have no obligation pursuant to
Sections 5.1 or 5.2 for the registration of Registrable Securities held by any
Holder (i) where such Holder would then be entitled to sell under Rule 144
within any three month period (or such other period prescribed under Rule 144 as
may be provided by amendment thereof) all of the Registrable Securities held by
such Holder, and (ii) where the number of Registrable Securities held by such
Holder is within the volume limitations under paragraph (e) of Rule 144
(calculated as if such Holder were an affiliate within the meaning of Rule 144).

                5.4.6 Supplemental Prospectus. Each Holder agrees, that upon
receipt of any notice from the Company of the happening of any event 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 not misleading in light of the circumstances then existing, such Holder
will immediately discontinue disposition of Registrable Securities pursuant to
the Registration Statement covering such Registrable Securities until such
Holder's receipt of the copies of a supplemental or amended prospectus, and, if
so desired by the Company, such Holder shall deliver to the Company (at the
expense of the Company) or destroy (and deliver to the Company a certificate of
such destruction) all copies, other than permanent file copies then in such
Holder's possession, of the prospectus covering such Registrable Securities
current at the time of receipt of such notice.

        6. Adjustments.

            6.1 Adjustments to Exercise Price and Number of Securities. The
Exercise Price and the number of Units underlying the Purchase Option shall be
subject to adjustment from time to time as hereinafter set forth:

                                      -9-
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                6.1.1 Stock Dividends - Split-Ups. If after the date hereof, and
subject to the provisions of Section 6.4 below, the number of outstanding shares
of Common Stock is increased by a stock dividend payable in shares of Common
Stock or by a split-up of shares of Common Stock or other similar event, then,
on the effective date thereof, the number of shares of Common Stock underlying
each of the Units purchasable hereunder shall be increased in proportion to such
increase in outstanding shares. In such case, the number of shares of Common
Stock, and the exercise price applicable thereto, underlying the Warrants
underlying each of the Units purchasable hereunder shall be adjusted in
accordance with the terms of the Warrants. For example, if the Company declares
a two-for-one stock dividend and at the time of such dividend this Purchase
Option is for the purchase of one Unit at $10.00 per whole Unit (each Warrant
underlying the Units is exercisable for $7.50 per share), upon effectiveness of
the dividend, this Purchase Option will be adjusted to allow for the purchase of
one Unit at $10.00 per Unit, each Unit entitling the holder to receive two
shares of Common Stock and two Warrants (each Warrant exercisable for $3.75 per
share).

                6.1.2 Aggregation of Shares. If after the date hereof, and
subject to the provisions of Section 6.4, the number of outstanding shares of
Common Stock is decreased by a consolidation, combination or reclassification of
shares of Common Stock or other similar event, then, on the effective date
thereof, the number of shares of Common Stock underlying each of the Units
purchasable hereunder shall be decreased in proportion to such decrease in
outstanding shares. In such case, the number of shares of Common Stock, and the
exercise price applicable thereto, underlying the Warrants underlying each of
the Units purchasable hereunder shall be adjusted in accordance with the terms
of the Warrants.

                6.1.3 Replacement of Securities upon Reorganization, etc. In
case of any reclassification or reorganization of the outstanding shares of
Common Stock other than a change covered by Section 6.1.1 or 6.1.2 hereof or
that solely affects the par value of such shares of Common Stock, or in the case
of any merger or consolidation of the Company with or into another corporation
(other than a consolidation or merger in which the Company is the continuing
corporation and that does not result in any reclassification or reorganization
of the outstanding shares of Common Stock), or in the case of any sale or
conveyance to another corporation or entity of the property of the Company as an
entirety or substantially as an entirety in connection with which the Company is
dissolved, the Holder of this Purchase Option shall have the right thereafter
(until the expiration of the right of exercise of this Purchase Option) to
receive upon the exercise hereof, for the same aggregate Exercise Price payable
hereunder immediately prior to such event, the kind and amount of shares of
stock or other securities or property (including cash) receivable upon such
reclassification, reorganization, merger or consolidation, or upon a dissolution
following any such sale or transfer, by a Holder of the number of shares of
Common Stock of the Company obtainable upon exercise of this Purchase Option and
the underlying Warrants immediately prior to such event; and if any
reclassification also results in a change in shares of Common Stock covered by
Section 6.1.1 or 6.1.2, then such adjustment shall be made pursuant to Sections
6.1.1, 6.1.2 and this Section 6.1.3. The provisions of this Section 6.1.3 shall
similarly apply to successive reclassifications, reorganizations, mergers or
consolidations, sales or other transfers.

                6.1.4 Changes in Form of Purchase Option. This form of Purchase
Option need not be changed because of any change pursuant to this Section, and
Purchase Options issued after such change may state the same Exercise Price and
the same number of Units as are stated in the Purchase Options initially issued
pursuant to this Agreement. The acceptance by any Holder of the issuance of new
Purchase Options reflecting a required or permissive change shall not be deemed
to waive any rights to an adjustment occurring after the Commencement Date or
the computation thereof.

                                      -10-
<PAGE>

                6.2 Substitute Purchase Option. In case of any consolidation of
the Company with, or merger of the Company with, or merger of the Company into,
another corporation (other than a consolidation or merger which does not result
in any reclassification or change of the outstanding Common Stock), the
corporation formed by such consolidation or merger shall execute and deliver to
the Holder a supplemental Purchase Option providing that the holder of each
Purchase Option then outstanding or to be outstanding shall have the right
thereafter (until the stated expiration of such Purchase Option) to receive,
upon exercise of such Purchase Option, the kind and amount of shares of stock
and other securities and property receivable upon such consolidation or merger,
by a holder of the number of shares of Common Stock of the Company for which
such Purchase Option might have been exercised immediately prior to such
consolidation, merger, sale or transfer. Such supplemental Purchase Option shall
provide for adjustments which shall be identical to the adjustments provided in
Section 6. The above provision of this Section shall similarly apply to
successive consolidations or mergers.

                6.3 Elimination of Fractional Interests. The Company shall not
be required to issue certificates representing fractions of shares of Common
Stock or Warrants upon the exercise of the Purchase Option, nor shall it be
required to issue scrip or pay cash in lieu of any fractional interests, it
being the intent of the parties that all fractional interests shall be
eliminated by rounding any fraction up or down to the nearest whole number of
Warrants, shares of Common Stock or other securities, properties or rights.

         7. Reservation and Listing. The Company shall at all times reserve and
keep available out of its authorized shares of Common Stock, solely for the
purpose of issuance upon exercise of the Purchase Options or the Warrants
underlying the Purchase Option, such number of shares of Common Stock or other
securities, properties or rights as shall be issuable upon the exercise thereof.
The Company covenants and agrees that, upon exercise of the Purchase Options and
payment of the Exercise Price therefor, all shares of Common Stock and other
securities issuable upon such exercise shall be duly and validly issued, fully
paid and non-assessable and not subject to preemptive rights of any stockholder.
The Company further covenants and agrees that upon exercise of the Warrants
underlying the Purchase Options and payment of the respective Warrant exercise
price therefor, all shares of Common Stock and other securities issuable upon
such exercise shall be duly and validly issued, fully paid and non-assessable
and not subject to preemptive rights of any stockholder. As long as the Purchase
Options shall be outstanding, the Company shall use its best efforts to cause
all (i) Units and shares of Common Stock issuable upon exercise of the Purchase
Options, (ii) Warrants issuable upon exercise of the Purchase Options and (iii)
shares of Common Stock issuable upon exercise of the Warrants included in the
Units issuable upon exercise of the Purchase Option to be listed (subject to
official notice of issuance) on all securities exchanges (or, if applicable on
the Nasdaq National Market, SmallCap Market, OTC Bulletin Board or any successor
trading market) on which the Units, the Common Stock or the Warrants may then be
listed and/or quoted.

        8. Certain Notice Requirements.

                                      -11-
<PAGE>

            8.1 Holder's Right to Receive Notice. Nothing herein shall be
construed as conferring upon the Holders the right to vote or consent as a
stockholder for the election of directors or any other matter, or as having any
rights whatsoever as a stockholder of the Company. If, however, at any time
prior to the expiration of the Purchase Options and their exercise, any of the
events described in Section 8.2 shall occur, then, in one or more of said
events, the Company shall give written notice of such event at least fifteen
days prior to the date fixed as a record date or the date of closing the
transfer books for the determination of the stockholders entitled to such
dividend, distribution, conversion or exchange of securities or subscription
rights, or entitled to vote on such proposed dissolution, liquidation, winding
up or sale. Such notice shall specify such record date or the date of the
closing of the transfer books, as the case may be. Notwithstanding the
foregoing, the Company shall deliver to each Holder a copy of each notice given
to the other stockholders of the Company at the same time and in the same manner
that such notice is given to the stockholders.

            8.2 Events Requiring Notice. The Company shall be required to give
the notice described in this Section 8 upon one or more of the following events:
(i) if the Company shall take a record of the holders of its shares of Common
Stock for the purpose of entitling them to receive a dividend or distribution
payable otherwise than in cash, or a cash dividend or distribution payable
otherwise than out of retained earnings, as indicated by the accounting
treatment of such dividend or distribution on the books of the Company, or (ii)
the Company shall offer to all the holders of its Common Stock any additional
shares of capital stock of the Company or securities convertible into or
exchangeable for shares of capital stock of the Company, or any option, right or
warrant to subscribe therefor, or (iii) a dissolution, liquidation or winding up
of the Company (other than in connection with a consolidation or merger) or a
sale of all or substantially all of its property, assets and business or a
merger of the Company wherein the separate existence of the Company shall cease
shall be proposed.

            8.3 Notice of Change in Exercise Price. The Company shall, promptly
after an event requiring a change in the Exercise Price pursuant to Section 6
hereof, send notice to the Holders of such event and change (a "PRICE NOTICE").
The Price Notice shall describe the event causing the change and the method of
calculating same and shall be certified as being true and accurate by the
Company's President and Chief Financial Officer.

            8.4 Transmittal of Notices. All notices, requests, consents and
other communications under this Purchase Option shall be in writing and shall be
deemed to have been duly made when hand delivered, mailed by express mail or
private courier service, or sent by facsimile transmission, with confirmation of
receipt: (i) If to the registered Holder of the Purchase Option, to the address
and/or fax number of such Holder as shown on the books of the Company, or (ii)
if to the Company, to the following address or fax number or to such other
address or and fax number as the Company may designate by notice to the Holders:

            Healthcare Acquisition Corp.
            2116 Financial Center
            666 Walnut Street
            Des Moines, Iowa 50309
            Attn: Matthew P. Kinley

                                      -12-
<PAGE>

         9. Miscellaneous.

            9.1 Amendments. The Company and Maxim may from time to time
supplement or amend this Purchase Option without the approval of any of the
Holders in order to cure any ambiguity, to correct or supplement any provision
contained herein that may be defective or inconsistent with any other provisions
herein, or to make any other provisions in regard to matters or questions
arising hereunder that the Company and Maxim may deem necessary or desirable and
that the Company and Maxim deem shall not adversely affect the interest of the
Holders. All other modifications or amendments shall require the written consent
of and be signed by the party against whom enforcement of the modification or
amendment is sought.

            9.2 Headings. The headings contained herein are for the sole purpose
of convenience of reference, and shall not in any way limit or affect the
meaning or interpretation of any of the terms or provisions of this Purchase
Option.

        10. Entire Agreement. This Purchase Option (together with the other
agreements and documents being delivered pursuant to or in connection with this
Purchase Option) constitutes the entire agreement of the parties hereto with
respect to the subject matter hereof, and supersedes all prior agreements and
understandings of the parties, oral and written, with respect to the subject
matter hereof.

            10.1 Binding Effect. This Purchase Option shall inure solely to the
benefit of and shall be binding upon, the Holder and the Company and their
permitted assignees, respective successors, legal representative and assigns,
and no other person shall have or be construed to have any legal or equitable
right, remedy or claim under or in respect of or by virtue of this Purchase
Option or any provisions herein contained.

            10.2 Governing Law; Submission to Jurisdiction. This Purchase Option
shall be governed by and construed and enforced in accordance with the laws of
the State of New York, without giving effect to conflict of laws. Each of the
Company and Maxim agree that any action, proceeding or claim against it arising
out of, or relating in any way to this Purchase Option shall be brought and
enforced in the courts of the State of New York located in New York County or of
the United States of America for the Southern District of New York, and
irrevocably submits to such jurisdiction, which jurisdiction shall be exclusive.
Each of the Company and Maxim hereby waives any objection to such exclusive
jurisdiction and that such courts represent an inconvenient forum. Any process
or summons to be served upon the Company may be served by transmitting a copy
thereof by registered or certified mail, return receipt requested, postage
prepaid, addressed to it at the address set forth in Section 8 hereof. Such
mailing shall be deemed personal service and shall be legal and binding upon the
Company in any action, proceeding or claim. The Company and the Holder agree
that the prevailing party(ies) in any such action shall be entitled to recover
from the other party(ies) all of its reasonable attorneys' fees and expenses
relating to such action or proceeding and/or incurred in connection with the
preparation therefor.

                                      -13-
<PAGE>

            10.3 Waiver, Etc. The failure of the Company or the Holder to at any
time enforce any of the provisions of this Purchase Option shall not be deemed
or construed to be a waiver of any such provision, nor to in any way affect the
validity of this Purchase Option or any provision hereof or the right of the
Company or any Holder to thereafter enforce each and every provision of this
Purchase Option. No waiver of any breach, non-compliance or non-fulfillment of
any of the provisions of this Purchase Option shall be effective unless set
forth in a written instrument executed by the party or parties against whom or
which enforcement of such waiver is sought; and no waiver of any such breach,
non-compliance or non-fulfillment shall be construed or deemed to be a waiver of
any other or subsequent breach, non-compliance or non-fulfillment.

            10.4 Execution in Counterparts. This Purchase Option may be executed
in one or more counterparts, and by the different parties hereto in separate
counterparts, each of which shall be deemed to be an original, but all of which
taken together shall constitute one and the same agreement, and shall become
effective when one or more counterparts has been signed by each of the parties
hereto and delivered to each of the other parties hereto.

            10.5 Exchange Agreement. As a condition of the Holder's receipt and
acceptance of this Purchase Option, Holder agrees that, at any time prior to the
complete exercise of this Purchase Option by Holder, if the Company and Maxim
enter into an agreement (an "EXCHANGE AGREEMENT") pursuant to which they agree
that all outstanding Purchase Options will be exchanged for securities or cash
or a combination of both, then Holder shall agree to such exchange and become a
party to the Exchange Agreement.

            10.6 Underlying Warrants. At any time after exercise by the Holder
of this Purchase Option, the Holder may exchange his Warrants (with a $7.50
exercise price) for Public Warrants (with a $6.00 exercise price) upon payment
to the Company of the difference between the exercise price of his Warrant and
the exercise price of the Public Warrants.

                  [Remainder of Page Intentionally Left Blank]

                                      -14-
<PAGE>

         IN WITNESS WHEREOF, the Company has caused this Purchase Option to be
signed by its duly authorized officer as of the ____ day of __________, 2005.

                                               HEALTHCARE ACQUISITION CORP

                                               By:______________________________
                                               Name: Matthew P. Kinley
                                               Title: President

                                      -15-
<PAGE>

Form to be used to exercise Purchase Option

Healthcare Acquisition Corp.

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

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

Date:_________________, 200__

         The undersigned hereby elects irrevocably to exercise all or a portion
of the within Purchase Option and to purchase ____ Units of Healthcare
Acquisition Corp. and hereby makes payment of $____________ (at the rate of
$_________ per Unit) in payment of the Exercise Price pursuant thereto. Please
issue the Common Stock and Warrants as to which this Purchase Option is
exercised in accordance with the instructions given below.

                                    or

         The undersigned hereby elects irrevocably to convert its right to
purchase _________ Units purchasable under the within Purchase Option by
surrender of the unexercised portion of the attached Purchase Option (with a
"Value" based of $_______ based on a "Market Price" of $_______). Please issue
the securities comprising the Units as to which this Purchase Option is
exercised in accordance with the instructions given below.

                                                     ------------------------
                                                     Signature

                                                     ------------------------
                                                     Signature Guaranteed

                   INSTRUCTIONS FOR REGISTRATION OF SECURITIES

Name_____________________________________________________________
         Print in Block Letters)

Address__________________________________________________________

NOTICE: THE SIGNATURE TO THIS FORM MUST CORRESPOND WITH THE NAME AS WRITTEN UPON
THE FACE OF THE WITHIN PURCHASE OPTION IN EVERY PARTICULAR WITHOUT ALTERATION OR
ENLARGEMENT OR ANY CHANGE WHATSOEVER, AND MUST BE GUARANTEED BY A BANK, OTHER
THAN A SAVINGS BANK, OR BY A TRUST COMPANY OR BY A FIRM HAVING MEMBERSHIP ON A
REGISTERED NATIONAL SECURITIES EXCHANGE.

                                      -16-
<PAGE>

Form to be used to assign Purchase Option

                                   ASSIGNMENT

         (To be executed by the registered Holder to effect a transfer of the
within Purchase Option):

         FOR VALUE RECEIVED,___________________________________________ does
hereby sell, assign and transfer unto______________________________________ the
right to purchase __________ Units of Healthcare Acquisition Corp. (the
"COMPANY") evidenced by the within Purchase Option and does hereby authorize the
Company to transfer such right on the books of the Company.

Dated:___________________, 200_

                                                     ----------------------
                                                     Signature

                                                     ----------------------
                                                     Signature Guaranteed

NOTICE: THE SIGNATURE TO THIS FORM MUST CORRESPOND WITH THE NAME AS WRITTEN UPON
THE FACE OF THE WITHIN PURCHASE OPTION IN EVERY PARTICULAR WITHOUT ALTERATION OR
ENLARGEMENT OR ANY CHANGE WHATSOEVER, AND MUST BE GUARANTEED BY A BANK, OTHER
THAN A SAVINGS BANK, OR BY A TRUST COMPANY OR BY A FIRM HAVING MEMBERSHIP ON A
REGISTERED NATIONAL SECURITIES EXCHANGE.

                                      -17-AMENDMENT NO. 1
                                       TO
                               PURCHASE AGREEMENT

      This Amendment No. 1 (this  "Amendment")  to the Purchase  Agreement dated
June 7,  2005  (the  "Purchase  Agreement")  among  IPEX,  Inc.,  a  corporation
organized and existing under the laws of the State of Nevada (the  "Purchaser"),
B Tech Ltd., a corporation  organized and existing under the laws of the British
Virgin Islands ("B Tech"),  Massimo  Ballerini  ("Ballerini")  and Emanuele Boni
("Boni"), is entered into this 29th day of June 2005. B Tech, Ballerini and Boni
are collectively referred to in this Amendment as the "Sellers").

                                   WITNESSETH:

      WHEREAS,  on June 7, 2005, the Purchaser and the Sellers  entered into the
Purchase Agreement, a copy of which is annexed hereto as Exhibit A; and

      WHEREAS,  the  parties  now  desire to amend  the  Purchase  Agreement  as
hereinafter set forth to revise the calculation of the Valuation Price per Share
as calculated in Section 2.2 of the Purchase Agreement.

      NOW,  THEREFORE,  in  consideration  of and for the  mutual  promises  and
covenants contained herein, and for other good and valuable  consideration,  the
receipt  of which is  hereby  acknowledged,  the  Purchase  Agreement  is hereby
amended as follows:

      1. All capitalized terms not defined herein shall have the meanings of the
ascribed to such terms in the Purchase Agreement.

      2. Section 2.2 of the Purchase  Agreement is hereby amended to be and read
as follows:

            "2.2 Purchase Price  Adjustment.  On the date ninety (90) days after
      the Closing Date (the "Valuation  Date"),  the Purchaser shall compute the
      price per share as the average of the closing bid and asked  prices of the
      Common Stock quoted in the Over-The-Counter  Market Summary for the twenty
      (20) trading days prior to the Valuation  Date (the  "Valuation  Price per
      Share").  The  number  of  shares  of  Common  Stock to be  issued  on the
      Valuation  Date  shall  be  adjusted  by  dividing  six  million   dollars
      ($6,000,000) by the Valuation Price per Share."

      3. (A) This  Amendment  shall be construed and  interpreted  in accordance
with the laws of the State of California  without  giving effect to the conflict
of laws rules thereof or the actual domiciles of the parties.

      (B) Except as amended  hereby,  the terms and  provisions  of the Purchase
Agreement shall remain in full force and effect,  and the Purchase  Agreement is
in all respects ratified and confirmed. On and after the date of this Amendment,

                                       1
<PAGE>

each  reference in the Purchase  Agreement  to the  "Agreement,"  "hereinafter,"
"herein,"  "hereinafter,"  "hereunder,"  "hereof," or words of like import shall
mean and be a reference to the Purchase Agreement as amended by this Amendment.

      (C) This  Amendment may be executed in one or more  counterparts,  each of
which  shall be  deemed  an  original  and all of  which  taken  together  shall
constitute a single Amendment.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

                                       2
<PAGE>

      IN WITNESS WHEREOF,  the parties hereto have executed this Amendment No. 1
to the Purchase Agreement as of the date first stated above.

                                   PURCHASER
                                   IPEX, Inc.

                                   By: /s/ Milton Ault
                                       ---------------------------------
                                       Milton "Todd" Ault, III
                                       Chief Executive Officer

                                   SELLER
                                   B Tech Ltd.

                                   By: /s/ Massimo Ballerini
                                       ---------------------------------
                                       Massimo Ballerini
                                       Director

                                   BALLERINI

                                   /s/ Massimo Ballerini
                                   -------------------------------------
                                   Massimo Ballerini

                                   BONI

                                   /s/ Emanuele Boni
                                   -------------------------------------
                                   Emanuele Boni

                                       3
<PAGE>

                                    Exhibit A
                               Purchase Agreement

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