VOTING AGREEMENT

VOTING AGREEMENT

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Exhibit 2

VOTING AGREEMENT

This Voting Agreement (“Agreement”) is entered into as of November 3, 2008, by and between Cardiovascular Systems, Inc., a Minnesota corporation (the “Company”), and [ ] (“Stockholder”).

Recitals

A. Stockholder is a holder of record and the “beneficial owner” (within the meaning of Rule 13d-3 under the Securities Exchange Act of 1934) of certain shares of capital stock of Replidyne, Inc., a Delaware corporation (the “Replidyne”).

B. Replidyne, Responder Merger Sub, Inc., a Minnesota corporation (“Merger Sub”), and the Company are entering into an Agreement and Plan of Merger and Reorganization of even date herewith (the “Merger Agreement”) which provides (subject to the conditions set forth therein) for the merger of Merger Sub into the Company (the “Merger”).

C. In the Merger, the outstanding shares of capital stock of the Company are to be converted into the right to receive shares of Common Stock of Replidyne.

D. In order to induce the Company to enter into the Merger Agreement, Stockholder is entering into this Agreement.

Agreement

The parties to this Agreement, intending to be legally bound, agree as follows:

Section 1. Certain Definitions

1.1 Specified Terms. For purposes of this Agreement:

(a) Stockholder shall be deemed to “Own” or to have acquired “Ownership” of a security if Stockholder: (i) is the record owner of such security; or (ii) is the “beneficial owner” (within the meaning of Rule 13d-3 under the Securities Exchange Act of 1934) of such security.

(b) “Subject Securities” shall mean all outstanding shares of capital stock of Replidyne (including all shares of Replidyne Common Stock) Owned by Stockholder as of the date of this Agreement.

(c) A Person shall be deemed to have effected a “Transfer” of a security if such Person directly or indirectly: (i) sells, pledges, encumbers, grants an option with

respect to, transfers or disposes of such security or any interest in such security to any Person other than the Company; (ii) enters into an agreement or commitment contemplating the possible sale of, pledge of, encumbrance of, grant of an option with respect to, transfer of or disposition of such security or any interest therein to any Person other than the Company; or (iii) reduces such Person’s beneficial ownership of, interest in or risk relating to such security.

(d) “Voting Covenant Expiration Date” shall mean the earlier of (i) the date upon which the Merger Agreement is validly terminated, (ii) the date upon which the Merger is consummated and (iii) the date upon which this Agreement is terminated.

1.2 Other Terms. Capitalized terms used herein and not defined shall have the meanings set forth in the Merger Agreement.

Section 2. Transfer of Subject Securities and Voting Rights

2.1 Restriction on Transfer of Subject Securities. Subject to Section 2.3, during the period from the date of this Agreement through the Voting Covenant Expiration Date, Stockholder shall not, directly or indirectly, cause or permit any Transfer of any of the Subject Securities to be effected.

2.2 Restriction on Transfer of Voting Rights. During the period from the date of this Agreement through the Voting Covenant Expiration Date, Stockholder shall ensure that: (a) none of the Subject Securities is deposited into a voting trust; and (b) no proxy is granted, and no voting agreement or similar agreement is entered into, with respect to any of the Subject Securities, other than a proxy granted to the Company.

2.3 Permitted Transfers. Section 2.1 shall not prohibit a transfer of Replidyne Common Stock by Stockholder (i) to any member of his immediate family, or to a trust for the benefit of Stockholder or any member of his immediate family, (ii) upon the death of Stockholder, or (iii) if Stockholder is a partnership or limited liability company, to one or more partners or members of Stockholder or to an affiliated corporation under common control with Stockholder; provided, however, that a transfer referred to in this sentence shall be permitted only if, as a precondition to such transfer, the transferee agrees in a writing, reasonably satisfactory in form and substance to the Company, to be bound by the terms of this Agreement.

Section 3. Voting of Shares

3.1 Voting Covenant. Stockholder hereby agrees that, prior to the Voting Covenant Expiration Date, at any meeting of the stockholders of Replidyne, however called, and in any written action by consent of stockholders of Replidyne, unless otherwise directed in writing by the Company, Stockholder shall cause not less than 68.0% of the Subject Securities to be voted:

(a) in favor of the Merger, the execution and delivery by Replidyne of the Merger Agreement and the adoption and approval of the Merger Agreement and the terms thereof, in favor of each of the other actions contemplated by the Merger Agreement and in favor of any action in furtherance of any of the foregoing;

(b) against any action or agreement that would result in a material breach of any covenant or obligation of Replidyne in the Merger Agreement that would have the effect of preventing or materially delaying the Merger; and

(c) against the following actions (other than the Merger and the transactions contemplated by the Merger Agreement (including, for the avoidance of doubt, the consummation of a Pipeline Transaction and any actions relating to the winding up of Replidyne’s business in accordance with the Merger Agreement)): (A) any extraordinary corporate transaction, such as a merger, consolidation or other business combination involving Replidyne or any subsidiary of Replidyne; (B) any sale, lease or transfer of a material amount of assets of Replidyne or any subsidiary of Replidyne; (C) any reorganization, recapitalization, dissolution or liquidation of Replidyne or any subsidiary of Replidyne; (D) any change in a majority of the board of directors of Replidyne; (E) any amendment to Replidyne’s certificate of incorporation or bylaws which would prevent or materially delay the Merger; (F) any Acquisition Transaction; and (G) any other action which is intended, or could reasonably be expected, to impede, interfere with, delay, postpone, discourage or adversely affect the Merger or any of the other transactions contemplated by the Merger Agreement or this Agreement.

Prior to the Voting Covenant Expiration Date, Stockholder shall not enter into any agreement or understanding with any Person to vote or give instructions in any manner inconsistent with clause “(a)”, “(b)”, or “(c)” of the preceding sentence.

3.2 Proxy. Contemporaneously with the execution of this Agreement Stockholder shall deliver to the Company a proxy in the form attached to this Agreement as Exhibit A, which shall be irrevocable to the fullest extent permitted by law (at all times prior to the Voting Covenant Expiration Date) with respect to the shares referred to therein (the “Proxy”).

Section 4. Waiver of Appraisal Rights

Stockholder hereby irrevocably and unconditionally waives, and agrees to cause to be waived and to prevent the exercise of, any rights of appraisal, any dissenters’ rights and any similar rights relating to the Merger or any related transaction that Stockholder may have by virtue of any outstanding shares of Replidyne Common Stock Owned by Stockholder.

Section 5. No Solicitation

Stockholder agrees that, during the period from the date of this Agreement through the Voting Covenant Expiration Date, Stockholder shall not, directly or indirectly, and Stockholder shall ensure that his or its Representatives (as defined in the Merger Agreement) do not, directly or indirectly: (i) solicit, initiate, knowingly encourage, induce or knowingly facilitate the communication, making, submission or announcement of any Acquisition Proposal or Acquisition Inquiry or take any action that could reasonably be expected to lead to an Acquisition Proposal or Acquisition Inquiry; (ii) furnish any information regarding Replidyne or any subsidiary of Replidyne to any Person in connection with or in response to an Acquisition

Proposal or Acquisition Inquiry; (iii) engage in discussions or negotiations with any Person with respect to any Acquisition Proposal or Acquisition Inquiry; (iv) approve, endorse or recommend any Acquisition Proposal; or (v) execute or enter into any letter of intent or similar document or any Contract contemplating or otherwise relating to any Acquisition Transaction. Stockholder shall immediately cease and discontinue, and Stockholder shall ensure that his or its Representatives immediately cease and discontinue, any existing discussions with any Person that relate to any Acquisition Proposal.

Section 6. Representations and Warranties of Stockholder

Stockholder hereby represents and warrants to the Company as follows:

6.1 Authorization, etc. Stockholder has the absolute and unrestricted right, power, authority and capacity to execute and deliver this Agreement and the Proxy and to perform his or its obligations hereunder and thereunder. This Agreement and the Proxy have been duly executed and delivered by Stockholder and constitute legal, valid and binding obligations of Stockholder, enforceable against Stockholder in accordance with their terms, subject to (i) laws of general application relating to bankruptcy, insolvency and the relief of debtors, and (ii) rules of law governing specific performance, injunctive relief and other equitable remedies. If Stockholder is a general or limited partnership, then Stockholder is a partnership duly organized, validly existing and in good standing under the laws of the jurisdiction in which it was organized. If Stockholder is a limited liability company, then Stockholder is a limited liability company duly organized, validly existing and in good standing under the laws of the jurisdiction in which it was organized.

6.2 No Conflicts or Consents.

(a) The execution and delivery of this Agreement and the Proxy by Stockholder do not, and the performance of this Agreement and the Proxy by Stockholder will not: (i) conflict with or violate any law, rule, regulation, order, decree or judgment applicable to Stockholder or by which he or it or any of his or its properties is or may be bound or affected; or (ii) result in or constitute (with or without notice or lapse of time) any breach of or default under, or give to any other Person (with or without notice or lapse of time) any right of termination, amendment, acceleration or cancellation of, or result (with or without notice or lapse of time) in the creation of any encumbrance or restriction on any of the Subject Securities pursuant to, any contract to which Stockholder is a party or by which Stockholder or any of his or its affiliates or properties is or may be bound or affected.

(b) The execution and delivery of this Agreement and the Proxy by Stockholder do not, and the performance of this Agreement and the Proxy by Stockholder will not, require any consent or approval of any Person which shall not have already been obtained.

6.3 Title to Securities. As of the date of this Agreement: (a) Stockholder holds of record (free and clear of any encumbrances or restrictions except those created under the Securities Act of 1933, as amended (the “Act”), and under any agreement with Replidyne which

has been disclosed to the Company) the number of outstanding shares of Replidyne Common Stock set forth under the heading “Shares Held of Record” on the signature page hereof; (b) Stockholder holds (free and clear of any encumbrances or restrictions except those created under the Act, and under any agreement with Replidyne which has been disclosed to the Company) the options, warrants and other rights to acquire shares of Replidyne Common Stock set forth under the heading “Options and Other Rights” on the signature page hereof; (c) Stockholder Owns the additional securities of Replidyne set forth under the heading “Additional Securities Beneficially Owned” on the signature page hereof; and (d) Stockholder does not directly or indirectly Own any shares of capital stock or other securities of Replidyne, or any option, warrant or other right to acquire (by purchase, conversion or otherwise) any shares of capital stock or other securities of Replidyne, other than the shares and options, warrants and other rights set forth on the signature page hereof.

6.4 Accuracy of Representations. The representations and warranties contained in this Agreement are accurate in all material respects as of the date of this Agreement and will be accurate in all material respects as of the date of the consummation of the Merger as if made on that date, subject to the acquisition of additional securities of Replidyne by Stockholder following the date hereof.

Section 7. Additional Covenants of Stockholder

7.1 Further Assurances. From time to time and without additional consideration, Stockholder shall execute and deliver, or cause to be executed and delivered, such additional transfers, assignments, endorsements, proxies, consents and other instruments, and shall (at Stockholder’s sole expense) take such further actions, as the Company may reasonably request in writing for the purpose of carrying out and furthering the intent of this Agreement.

7.2 Legends. If requested by the Company, immediately after the execution of this Agreement, Stockholder shall cause each certificate evidencing any outstanding shares of Replidyne Common Stock Owned by Stockholder to be surrendered so that the transfer agent for such securities may affix thereto a legend in the following form:

THE SECURITY OR SECURITIES REPRESENTED BY THIS CERTIFICATE MAY NOT BE SOLD, EXCHANGED OR OTHERWISE TRANSFERRED OR DISPOSED OF EXCEPT IN COMPLIANCE WITH THE TERMS AND PROVISIONS OF A VOTING AGREEMENT DATED AS OF OCTOBER ___, 2008, AS IT MAY BE AMENDED, A COPY OF WHICH IS ON FILE AT THE PRINCIPAL EXECUTIVE OFFICES OF THE ISSUER.

Section 8. Miscellaneous

8.1 Survival of Representations, Warranties and Agreements. All representations, warranties, covenants and agreements made by Stockholder in this Agreement shall survive (i) the consummation of the Merger, (ii) any termination of the Merger Agreement, and (iii) the Voting Covenant Expiration Date.

8.2 Expenses. Except as otherwise may be agreed to, all costs and expenses incurred in connection with the transactions contemplated by this Agreement shall be paid by the party incurring such costs and expenses.

8.3 Notices. Any notice or other communication required or permitted to be delivered to either party under this Agreement shall be in writing and shall be deemed properly delivered, given and received when delivered (by hand, by registered mail, by courier or express delivery service or by facsimile) to the address or facsimile telephone number set forth beneath the name of such party below (or to such other address or facsimile telephone number as such party shall have specified in a written notice given to the other party):

if to Stockholder:

at the address set forth on the signature page hereof; and

if to the Company:

Cardiovascular Systems, Inc.
000 Xxxxxx Xxxxx
Xx. Xxxx, XX 00000-0000
Attention: Chief Executive Officer
Facsimile: 000-000-0000

8.4 Severability. Any term or provision of this Agreement that is invalid or unenforceable in any situation in any jurisdiction shall not affect the validity or enforceability of the remaining terms and provisions hereof or the validity or enforceability of the offending term or provision in any other situation or in any other jurisdiction. If the final judgment of a court of competent jurisdiction declares that any term or provision hereof is invalid or unenforceable, the parties hereto agree that the court making such determination shall have the power to limit the term or provision, to delete specific words or phrases, or to replace any invalid or unenforceable term or provision with a term or provision that is valid and enforceable and that comes closest to expressing the intention of the invalid or unenforceable term or provision, and this Agreement shall be enforceable as so modified. In the event such court does not exercise the power granted to it in the prior sentence, the parties hereto agree to replace such invalid or unenforceable term or provision with a valid and enforceable term or provision that will achieve, to the extent possible, the economic, business and other purposes of such invalid or unenforceable term.

8.5 Entire Agreement. This Agreement, the Proxy and any other documents delivered by the parties in connection herewith constitute the entire agreement between the parties with respect to the subject matter hereof and thereof and supersede all prior agreements and understandings between the parties with respect thereto. No addition to or modification of any provision of this Agreement shall be binding upon either party unless made in writing and signed by both parties.

8.6 Assignment; Binding Effect. Except as provided herein, neither this Agreement nor any of the interests or obligations hereunder may be assigned or delegated by Stockholder, and any attempted or purported assignment or delegation of any of such interests or obligations

shall be void. Subject to the preceding sentence, this Agreement shall be binding upon Stockholder and his heirs, estate, executors and personal representatives and his or its successors and assigns, and shall inure to the benefit of the Company and its successors and assigns. Without limiting any of the restrictions set forth in Section 2 or Section 7.1 or elsewhere in this Agreement, this Agreement shall be binding upon any Person to whom any Subject Securities are transferred. Nothing in this Agreement is intended to confer on any Person (other than the Company and its successors and assigns) any rights or remedies of any nature.

8.7 Specific Performance. The parties agree that irreparable damage would occur in the event that any of the provisions of this Agreement or the Proxy were not performed in accordance with its specific terms or were otherwise breached. Stockholder agrees that, in the event of any breach or threatened breach by Stockholder of any covenant or obligation contained in this Agreement or in the Proxy, the Company shall be entitled (in addition to any other remedy that may be available to it, including monetary damages) to seek and obtain (a) a decree or order of specific performance to enforce the observance and performance of such covenant or obligation, and (b) an injunction restraining such breach or threatened breach. Stockholder further agrees that neither the Company nor any other Person shall be required to obtain, furnish or post any bond or similar instrument in connection with or as a condition to obtaining any remedy referred to in this Section 8.7, and Stockholder irrevocably waives any right he or it may have to require the obtaining, furnishing or posting of any such bond or similar instrument.

8.8 Non-Exclusivity. The rights and remedies of the Company under this Agreement are not exclusive of or limited by any other rights or remedies which it may have, whether at law, in equity, by contract or otherwise, all of which shall be cumulative (and not alternative). Without limiting the generality of the foregoing, the rights and remedies of the Company under this Agreement, and the obligations and liabilities of Stockholder under this Agreement, are in addition to their respective rights, remedies, obligations and liabilities under common law requirements and under all applicable statutes, rules and regulations.

8.9 Governing Law; Venue.

(a) This Agreement and the Proxy shall be construed in accordance with, and governed in all respects by, the laws of the State of Delaware (without giving effect to principles of conflicts of laws).

(b) Any legal action or other legal proceeding relating to this Agreement or the Proxy or the enforcement of any provision of this Agreement or the Proxy may be brought or otherwise commenced in any state or federal court located in the State of Delaware. Stockholder:

(i) expressly and irrevocably consents and submits to the jurisdiction of each state and federal court located in the State of Delaware in connection with any such legal proceeding;

(ii) agrees that service of any process, summons, notice or document by U.S. mail addressed to him or it at the address set forth on the signature page hereof shall constitute effective service of such process, summons, notice or document for purposes of any such legal proceeding;

(iii) agrees that each state and federal court located in the State of Delaware shall be deemed to be a convenient forum; and

(iv) agrees not to assert (by way of motion, as a defense or otherwise), in any such legal proceeding commenced in any state or federal court located in the State of Delaware, any claim that Stockholder is not subject personally to the jurisdiction of such court, that such legal proceeding has been brought in an inconvenient forum, that the venue of such proceeding is improper or that this Agreement or the subject matter of this Agreement may not be enforced in or by such court.

Nothing contained in this Section 8.9 shall be deemed to limit or otherwise affect the right of the Company to commence any legal proceeding or otherwise proceed against Stockholder in any other forum or jurisdiction.

(c) STOCKHOLDER IRREVOCABLY WAIVES THE RIGHT TO A JURY TRIAL IN CONNECTION WITH ANY LEGAL PROCEEDING RELATING TO THIS AGREEMENT OR THE PROXY OR THE ENFORCEMENT OF ANY PROVISION OF THIS AGREEMENT OR THE PROXY.

8.10 Counterparts. This Agreement may be executed in separate counterparts, each of which when so executed and delivered shall be an original, but all such counterparts shall together constitute one and the same instrument.

8.11 Captions. The captions contained in this Agreement are for convenience of reference only, shall not be deemed to be a part of this Agreement and shall not be referred to in connection with the construction or interpretation of this Agreement.

8.12 Attorneys’ Fees. If any legal action or other legal proceeding relating to this Agreement or the enforcement of any provision of this Agreement is brought against Stockholder, the prevailing party shall be entitled to recover reasonable attorneys’ fees, costs and disbursements (in addition to any other relief to which the prevailing party may be entitled).

8.13 Waiver. No failure on the part of the Company to exercise any power, right, privilege or remedy under this Agreement, and no delay on the part of the Company in exercising any power, right, privilege or remedy under this Agreement, shall operate as a waiver of such power, right, privilege or remedy; and no single or partial exercise of any such power, right, privilege or remedy shall preclude any other or further exercise thereof or of any other power, right, privilege or remedy. The Company shall not be deemed to have waived any claim available to the Company arising out of this Agreement, or any power, right, privilege or remedy of the Company under this Agreement, unless the waiver of such claim, power, right, privilege or remedy is expressly set forth in a written instrument duly executed and delivered on behalf of the

Company; and any such waiver shall not be applicable or have any effect except in the specific instance in which it is given.

8.14 Term. This Agreement and all obligations hereunder shall terminate upon the earlier of (i) the day after the Merger is consummated, (ii) April 30, 2009, (iii) the date of any modification, waiver or amendment to the Merger Agreement in a manner that reduces the amount and form of consideration payable thereunder to Stockholder, and (iv) the termination of the Merger Agreement.

8.15 No Limitation on Actions of Stockholder as Director. In the event Stockholder or any of its Representatives is a member of the board of directors of Replidyne, notwithstanding anything to the contrary in this Agreement, nothing in this Agreement is intended or shall be construed to require the Stockholder or such Representative to take any action, or limit any action the Stockholder or such Representative may take, to the extent that doing so would be inconsistent with Stockholder or such Representative’s fiduciary duties as a director of Replidyne. Notwithstanding anything in this Agreement to the contrary, Stockholder makes no agreement or understanding herein in any capacity other than in its capacity as a record holder and beneficial owner of the Subject Securities.

8.16 Construction.

(a) For purposes of this Agreement, whenever the context requires: the singular number shall include the plural, and vice versa; the masculine gender shall include the feminine and neuter genders; the feminine gender shall include the masculine and neuter genders; and the neuter gender shall include masculine and feminine genders.

(b) The parties agree that any rule of construction to the effect that ambiguities are to be resolved against the drafting party shall not be applied in the construction or interpretation of this Agreement.

(c) As used in this Agreement, the words “include” and “including,” and variations thereof, shall not be deemed to be terms of limitation, but rather shall be deemed to be followed by the words “without limitation.”

(d) Except as otherwise indicated, all references in this Agreement to “Sections” and “Exhibits” are intended to refer to Sections of this Agreement and Exhibits to this Agreement.

[Signature Page Follows]

In Witness Whereof, the Company and Stockholder have caused this Agreement to be executed as of the date first written above.


		STOCKHOLDER


		Name:

		Address:




		Facsimile:


		Additional Securities Beneficially
Shares Held of Record	Options and Other Rights	Owned

10.

Exhibit A
Form Of Irrevocable Proxy

The undersigned stockholder (the “Stockholder”) of Replidyne, Inc., a Delaware corporation (“Replidyne”), hereby irrevocably (to the fullest extent permitted by law) appoints and constitutes Xxxxx X. Xxxxxx, Xxxxxxxx X. Xxxxxxxxx and Cardiovascular Systems, Inc., a Minnesota corporation (the “Company”), and each of them, the attorneys and proxies of the Stockholder with full power of substitution and resubstitution, to the full extent of the Stockholder’s rights with respect to the outstanding shares of capital stock of Replidyne owned of record by the Stockholder as of the date of this proxy, which shares are specified on the final page of this proxy (the “Shares”). Upon the execution hereof, all prior proxies given by the Stockholder with respect to any of the Shares are hereby revoked, and the Stockholder agrees that no subsequent proxies will be given with respect to any of the Shares.

This proxy is irrevocable, is coupled with an interest and is granted in connection with the Voting Agreement, dated as of the date hereof, between the Company and the Stockholder (the “Voting Agreement”), and is granted in consideration of the Company entering into the Agreement and Plan of Merger and Reorganization, dated as of the date hereof, among Replidyne, Responder Merger Sub, Inc. and the Company (the “Merger Agreement”). This proxy will terminate on the Voting Covenant Expiration Date (as defined in the Voting Agreement).

The attorneys and proxies named above will be empowered, and may exercise this proxy, to vote not less than 68.0% of the Shares at any time until the Voting Covenant Expiration Date at any meeting of the stockholders of Replidyne, however called, and in connection with any written action by consent of stockholders of Replidyne:

(i) in favor of the Merger (as defined in the Merger Agreement), the execution and delivery by Replidyne of the Merger Agreement and the adoption and approval of the Merger Agreement and the terms thereof, in favor of each of the other actions contemplated by the Merger Agreement and in favor of any action in furtherance of any of the foregoing; and

(ii) against any action or agreement that would result in a material breach of any covenant or obligation of Replidyne in the Merger Agreement that would have the effect of preventing or materially delaying the Merger; and

(iii) against the following actions (other than the Merger and the other transactions contemplated by the Merger Agreement (including, for the avoidance of doubt, the consummation of a Pipeline Transaction (as defined in the Merger Agreement) and any actions relating to the winding up of Replidyne’s business in accordance with the Merger Agreement)): (A) any extraordinary corporate transaction, such as a merger, consolidation or other business combination involving Replidyne or any subsidiary of Replidyne; (B) any sale, lease or transfer of a material amount of assets of Replidyne or any subsidiary of Replidyne; (C) any reorganization, recapitalization, dissolution or liquidation of Replidyne or any subsidiary of Replidyne; (D) any change in a majority of the board of directors of Replidyne; (E) any amendment to Replidyne’s certificate of

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incorporation or bylaws that would prevent or materially delay the Merger; (F) any Acquisition Transaction; and (G) any other action which is intended, or could reasonably be expected to impede, interfere with, delay, postpone, discourage or adversely affect the Merger or any of the other transactions contemplated by the Merger Agreement or the Voting Agreement.

The Stockholder may vote the Shares on all other matters not referred to in this proxy, and the attorneys and proxies named above may not exercise this proxy with respect to such other matters.

This proxy shall be binding upon the heirs, estate, executors, personal representatives, successors and assigns of the Stockholder (including any transferee of any of the Shares).

Any term or provision of this proxy that is invalid or unenforceable in any situation in any jurisdiction shall not affect the validity or enforceability of the remaining terms and provisions hereof or the validity or enforceability of the offending term or provision in any other situation or in any other jurisdiction. If the final judgment of a court of competent jurisdiction declares that any term or provision hereof is invalid or unenforceable, the Stockholder agrees that the court making such determination shall have the power to limit the term or provision, to delete specific words or phrases, or to replace any invalid or unenforceable term or provision with a term or provision that is valid and enforceable and that comes closest to expressing the intention of the invalid or unenforceable term or provision, and this proxy shall be enforceable as so modified. In the event such court does not exercise the power granted to it in the prior sentence, the Stockholder agrees to replace such invalid or unenforceable term or provision with a valid and enforceable term or provision that will achieve, to the extent possible, the economic, business and other purposes of such invalid or unenforceable term.

[Signature Page Follows]

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Dated: , 2008


		Name

		Number of shares of Common Stock of Replidyne owned of record as of the date of this proxy:

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CARDIOVASCULAR SYSTEMS, INC.