Exhibit 4.6

The Warrant and the securities issuable upon exercise of this Warrant
(COLLECTIVELY, the "Securities") have not been registered under the Securities
Act of 1933, as amended (the "Securities Act"), or under any state securities or
Blue Sky laws ("Blue Sky Laws"). No transfer, sale, assignment, pledge,
hypothecation or other disposition of this Warrant or the Securities or any
interest therein may be made except (a) pursuant to an effective registration
statement under the Securities Act and any applicable Blue Sky Laws or (b) if
the Company has been furnished with both an opinion of counsel for the holder,
which opinion and counsel shall be satisfactory to the Company, to the effect
that no registration is required because of the availability of an exemption
from registration under the Securities Act and applicable Blue Sky Laws, and
assurances that the transfer, sale, assignment, pledge, hypothecation or other
disposition will be made only in compliance with the conditions of any such
registration or exemption.

                       WARRANT FOR SHARES OF COMMON STOCK
                                       OF
                             PROUROCARE MEDICAL INC.

Warrant No.    21A                                           Plymouth, Minnesota
                                                                   July 19, 2004

         FOR VALUE RECEIVED, Artann Laboratories, Inc., or its successors or
assigns (collectively, the "Holder"), is entitled to subscribe for and purchase
from ProUroCare Medical Inc., a Nevada corporation (the "Company"), up to Ninety
Thousand (90,000) fully paid and nonassessable shares (the "Shares") of the
Company's common stock, $.00001 par value (the "Common Stock"), at the exercise
price of Two and No/100 Dollars ($2.00) per Share, subject to adjustment as
herein provided (the "Exercise Price"). This Warrant may be exercised by the
Holder at any time after the date hereof; provided, however, that the Holder
shall in no event have the right to exercise this Warrant or any portion thereof
after July 19, 2009, at which time all of the Holder's rights hereunder shall
expire.

         This Warrant is subject to the following provisions, terms and
conditions:

      1. Exercise of Warrant. The rights represented by this Warrant may be
exercised by the Holder, in whole or in part (but not as to any fractional
shares of Common Stock), by written notice of exercise delivered to the Company
prior to the intended date of exercise and by the surrender of this Warrant
(properly endorsed if required) at the Company's principal office, and upon
payment to it by certified check, bank draft or cash of the purchase price for
such Shares. Such notice shall be substantially in the form of the subscription
appearing at the end of this Warrant as Exhibit A, duly executed by the Holder,
its agent or attorney. The Company agrees that the Shares so purchased shall be
deemed to be issued to the Holder as the record owner of such Shares as of the
close of business on the date on which this Warrant has been exercised by
payment to the Company of the purchase price. The Company shall deliver to the
Holder within a reasonable time, not to exceed thirty (30) days after the
exercise of this Warrant, certificates for the Shares so purchased and, unless
this Warrant has expired, a new Warrant representing the number of shares, if
any, remaining unexercised. The Company may require that any such new Warrant or
any certificate for shares purchased upon the exercise hereof bear a legend
substantially similar to that which is contained on the face of this Warrant.
<PAGE>

      2. Transferability of this Warrant. This Warrant is issued upon the
following terms, to which the Holder consents and agrees:

            (a) Until this Warrant is transferred on the books of the Company,
the Company will treat the Holder of this Warrant, registered as such on the
books of the Company, as the absolute owner hereof for all purposes without
effect given to any notice to the contrary.

            (b) This Warrant may not be exercised, and this Warrant and the
Shares underlying this Warrant shall not be transferable, except in compliance
with all applicable state and federal securities laws, regulations and orders,
and with all other applicable laws, regulations and orders.

            (c) The Warrant may not be transferred, and the Shares purchasable
upon exercise of this Warrant, may not be transferred without the Holder
obtaining an opinion of counsel, which opinion and counsel are satisfactory to
the Company, stating that the proposed transaction will not result in a
prohibited transaction under the Securities Act and applicable Blue Sky Laws. By
accepting this Warrant, the Holder agrees to act in accordance with any
conditions imposed on such transfer by any such opinion of counsel.

            (d) Any transfer of this Warrant shall be made by delivering written
notice of the transfer to the Company together with an assignment substantially
in the form of assignment appearing at the end of this Warrant as Exhibit B,
duly executed by the Holder, its agent or attorney.

            (e) Neither the issuance of this Warrant nor the issuance of the
Shares purchasable upon exercise of this Warrant have been registered under the
Securities Act.

      3. Certain Covenants of the Company. The Company hereby covenants and
agrees that all Shares which may be issued upon the exercise of the rights
represented by this Warrant shall, upon their issuance, be duly authorized and
issued, fully paid and nonassessable shares of Common Stock, free from all
taxes, liens and charges with respect to the issue hereof, except those that may
be created by or imposed upon the Holder or its property; and, without limiting
the generality of the foregoing, the Company covenants and agrees that it will
from time to time take all such actions as may be required to ensure that the
par value per share of the Common Stock is at all times equal to or less than
the Exercise Price per share issuable pursuant to this Warrant. The Company
further covenants and agrees that during the period within which the rights
represented by this Warrant may be exercised, the Company shall at all times
have authorized and reserved, free of preemptive or other rights, a sufficient
number of shares of its Common Stock to provide for the full exercise of the
purchase rights evidenced by this Warrant.

      4. Adjustment of Exercise Price and Number of Shares. The Exercise Price
and number of Shares are subject to the following adjustments:
<PAGE>

            (a) Stock Dividend, Stock Split or Stock Combination. If (i) the
Company pays any dividends on any class of the Company's capital stock payable
in Common Stock or securities convertible into or exercisable for Common Stock,
(ii) the Company divides its then-outstanding shares of Common Stock into a
greater number of shares, or (iii) the Company combines its outstanding shares
of Common Stock, by reclassification or otherwise, then in any such event, the
Exercise Price in effect immediately prior to such event shall be adjusted to a
price (calculated to the nearest full cent) obtained by multiplying the number
of shares of Common Stock outstanding immediately prior to such event by the
Exercise Price in effect immediately prior to such event, and dividing by the
total number of shares of Common Stock outstanding immediately after such event
(the "Adjusted Exercise Price"). No adjustment of the Exercise Price shall be
made if the amount of such adjustment shall be less than $.05 per Share;
provided, however that any such adjustment not required to be made shall be
carried forward and made at the time, and together with, any subsequent
adjustment(s) which shall amount to not less than $.05 per share.

            (b) Number of Shares Purchasable on Exercise of Warrants. Upon each
adjustment of the Exercise Price, the Holder shall thereafter (until another
such adjustment) be entitled to purchase, at the Adjusted Exercise Price, the
number of shares of Common Stock (calculated to the nearest full share) obtained
by multiplying the Shares purchasable under this Warrant immediately prior to
such adjustment by the Exercise Price in effect immediately prior to such
adjustment, and dividing by the Adjusted Exercise Price.

            (c) Notice of Adjustment. Upon any adjustment of the Exercise Price,
the Company shall give written notice thereof by first-class mail, postage
prepaid, addressed to each Holder as shown on the books of the Company within 30
days of the adjustment. Any such notice shall state the Adjusted Exercise Price
and adjusted number of shares purchasable upon the exercise of the Warrant, and
shall set forth in reasonable detail the methods of calculation of such
adjustments and the facts upon which such calculations were based.

            (d) Effect of Reorganization, Reclassification or Merger. If at any
time while this Warrant is outstanding there should be (i) any reorganization of
the Company's capital stock (other than splits or combinations of Common Stock
contemplated by and provided for in Section y4y(a)), (ii) any consolidation or
merger of the Company with another corporation, limited liability company,
partnership or other business entity, or any sale, conveyance, lease or other
transfer by the Company of all or substantially all of its property to any other
corporation, limited liability company, partnership or other business entity,
which is effected in such a manner that the holders of Common Stock shall be
entitled to receive cash, stock, securities or assets with respect to or in
exchange for Common Stock, or (iii) any dividend or any other distribution upon
any class of the Company's capital stock payable in capital stock of a different
class, other securities of the Company, or other Company property (other than
cash), then, as a part of such transaction, lawful provision shall be made so
that the Holder shall have the right thereafter to receive, upon the exercise
hereof, the number of shares of stock or other securities or property of the
Company or of the successor entity resulting from a consolidation or merger, or
of the entity to which the property of the Company has been sold, conveyed,
leased or otherwise transferred, as the case may be, which the Holder would have
been entitled to receive upon such capital reorganization, reclassification of
capital stock, consolidation, merger, sale, conveyance, lease or other transfer,
if this Warrant had been exercised immediately prior to such capital
reorganization, reclassification of capital stock, consolidation, merger, sale,
conveyance, lease or other transfer. In any such case, appropriate adjustments
(as determined by the Company's board of directors) shall be made in the
application of the provisions of this Warrant to the end that the provisions set
forth herein shall thereafter be applicable, as near as reasonably may be, in
relation to any shares or other property thereafter deliverable upon the
exercise of the Warrant as if the Warrant had been exercised immediately prior
to such capital reorganization, reclassification of capital stock, such
consolidation, merger, sale, conveyance, lease or other transfer and the Holder
had carried out the terms of the exchange as provided for by such capital
reorganization, consolidation or merger. The Company shall not effect any such
capital reorganization, consolidation, merger or transfer unless, upon or prior
to the consummation thereof, the successor entity or the entity to which the
property of the Company has been sold, conveyed, leased or otherwise transferred
shall assume in writing the obligation to deliver to the Holder such shares of
stock, securities, cash or property which the Holder shall be entitled to
purchase in accordance with the foregoing provisions.
<PAGE>

      5. No Rights as Shareholder. This Warrant shall not entitle the Holder to
any voting rights or other rights as a shareholder of the Company.

      6. Governing Law. This Warrant shall be governed by and construed in
accordance with the laws of the State of Minnesota without regard to its
conflicts-of-law provisions.

      7. Amendments and Waivers. The provisions of this Warrant may not be
amended, modified or supplemented, and waiver or consents to departures from the
provisions hereof may not be given, unless the Company agrees in writing and has
obtained the written consent of the Holder.

      8. Successors and Assigns. All the terms and conditions of this Warrant
shall be binding upon and inure to the benefit of the permitted successors and
assigns of the Company and the Holder.

      9. Headings and References. The headings of this Warrant are for
convenience only and shall not affect the interpretation of this Warrant. Unless
the context indicates otherwise, all references herein to Sections are
references to Sections of this Warrant.

      10. Notices. All notices or communications hereunder, except as herein
otherwise specifically provided, shall be in writing. Notices sent to the Holder
shall be mailed, hand delivered or faxed and confirmed to the Holder at his, her
or its address set forth in the Company's records. Notices sent to the Company
shall be mailed, hand delivered or faxed and confirmed to ProUroCare Medical
Inc., One Carlson Parkway, Suite 124, Plymouth, Minnesota 55447, or to such
other address as the Company or the Holder shall notify the other as provided in
this Section.

      IN WITNESS WHEREOF, the Company has caused this Warrant to be signed by
its duly authorized officer on the date first set forth above.

                                 PROUROCARE MEDICAL INC.

                                 By  /s/ Michael P. Grossman
                                     -------------------------------------------
                                     MICHAEL P. GROSSMAN, President and CEO

ATTEST:

By  /s/ Richard Thon
    -------------------------------------
    RICHARD THON, Chief Financial Officer
<PAGE>

                                    Exhibit a

                                  SUBSCRIPTION

                  (To be signed only upon exercise of warrant)

         THE UNDERSIGNED, the holder of the warrant referenced below, hereby
irrevocably elects to exercise the purchase right represented by such warrant
for, and to purchase thereunder, _______________________________ shares of
common stock of ProUroCare Medical Inc. to which such warrant relates, herewith
makes payment of $_____________________ therefor in cash, or by certified check
or bank draft, and hereby requests that a certificate evidencing the such shares
be delivered to _______________________________________, whose address is set
forth below the signature of the undersigned:

Dated:
        ----------------------           ---------------------------------------
                                         (Signature)

                                         ---------------------------------------
                                         (Printed Name)

                                         ---------------------------------------
                                         (Address)

                                         ---------------------------------------
                                         (Address)

Warrant No. __, dated __________, 2004
<PAGE>

                                    EXHIBIT B

                                   ASSIGNMENT

             (To be signed only upon authorized transfer of warrant)

         FOR VALUE RECEIVED, the undersigned hereby sells, assigns, transfers
and conveys unto _________________________________ the right to purchase shares
of common stock of ProUroCare Medical Inc. (the "Company") represented by the
warrant referenced below, and hereby appoints _________________________________
as attorney to transfer said right on the books of the Company with full power
of substitution in the premises.

Dated:
        ----------------------           ---------------------------------------
                                         (Signature)

                                         ---------------------------------------
                                         (Printed Name)

                                         ---------------------------------------
                                         (Address)

                                         ---------------------------------------
                                         (Address)

Warrant No. __, dated __________, 2004