| A. | Landlord      (as successor in interest to CalWest Industrial Holdings, LLC, a Delaware      limited liability company, successor in interest to State of California      Public Employees’ Retirement System) and Tenant are parties to that      certain Standard Form Lease (the “Original Lease”) dated      April 25, 1994, which Original Lease has been previously amended by that      certain Lease Amendment No. 1, dated September 28, 1994, that certain      Second Amendment to Lease, dated April 10, 1995, that certain Third      Amendment to Lease, dated June 18, 1999, that certain Fourth Amendment to      Lease, dated August 30, 2002 and that certain Fifth Amendment dated as of      September 5, 2005, that certain Sixth Amendment (the “Sixth Amendment”), dated      as of March 20, 2007 (collectively, the “Lease”).  Pursuant      to the Lease, Landlord has leased to Tenant space currently containing      approximately 29,000 rentable square      feet (the “Premises”) located at      47266 Benicia Street, Fremont, California (the “Building”). |
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| B. | The      Lease by its terms shall expire on May 31, 2010 (“Prior Termination      Date”), and the parties desire to extend the Term of the Lease, all      on the following terms andconditions. |
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| 1.   | Extension.  The      Term of the Lease is hereby extended for a period of fifty (50) months and      shall expire on July 31, 2014 (“FifthExtended Termination      Date”), unless sooner terminated in accordance with the terms of      the Lease.  That portion of the Term commencing the day      immediately following the Prior Termination Date (“Fifth Extension Date”)      and ending on the Fifth Extended Termination Date shall be referred to      herein as the “Fifth      Extended Term”.  That portion of the Term commencing May      1, 2009 and ending on the Prior Termination Date shall be referred to as      the “Remaining Portion of      the Fourth Extended Term”.  |
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| 2. | Monthly      Rent.  Notwithstanding anything to the contrary contained      in the Lease,, the schedule of Monthly Rent payable with respect to the      Premises during the Remaining Portion of the Fourth Extended Term and      Fifth Extended Term is thefollowing: |
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| Period                      |   | Rentable      Square Footage |   |   | Annual      Rent |   |       | Monthly      Rent |   |
|-----------------------------|--------|------------------------------|--------|--------|------------------|--------|------------|-------------------|--------|
| 6/1/09      – 7/31/10 |   |                         | 29,000 |   |             | $      | 202,941.96 |              |   | $ | 16,911.83 | * |
| 8/1/10      – 7/31/11 |   |                         | 29,000 |   |             | $      | 208,683.96 |              |   | $ | 17,390.33 |   |
| 8/1/11      – 7/31/12 |   |                         | 29,000 |   |             | $      | 214,598.28 |              |   | $ | 17,883.19 |   |
| 8/1/12      – 7/31/13 |   |                         | 29,000 |   |             | $      | 220,689.96 |              |   | $ | 18,390.83 |   |
| 8/1/13      – 7/31/14 |   |                         | 29,000 |   |             | $      | 226,964.40 |              |   | $ | 18,913.70 |   |

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| 3. | Additional      Security Deposit.  No additional Security Deposit shall      be required in connection with thisAmendment. |
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| 4. | Operating      Expenses.  During the Remaining Portion of the Fourth      Extended Term and the Fifth Extended Term, Tenant shall pay for Tenant’s      Share of Operating Expenses in accordance with the terms of the Lease, as      amended hereby. |
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| 5. | Improvements      to Premises. |
|----|--------------------------------|

|   | 5.1 | Condition of      Premises.  Tenant is in possession of the Premises and      agrees that Tenant shall continue to occupy the Premises in its existing      condition “as is” without any agreements, representations, understandings      or obligations on the part of Landlord to perform any alterations, repairs      or improvements, except as may be expressly provided otherwise in the      Lease or this Amendment. |
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|   | 5.2 | Responsibility for Improvements      to Premises.  Tenant may perform improvements to the      Premises in accordance with Exhibit B attached      hereto and Tenant shall be entitled to an improvement allowance in      connection with such work as more fully described in Exhibit B.  Landlord      shall restripe, as reasonably determined by Landlord, the parking lot      serving the Premises at Landlord’s sole cost and  expense. |
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| 6. | Option      to Renew. |
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|   | 6.1 | Section      6 of the Sixth Amendment is hereby deleted in its      entirety.  Tenant shall, provided the Lease, as amended hereby,      is in full force and effect and Tenant is not in default under any of the      other terms and conditions of the Lease beyond any applicable cure periods      at the time of notification or commencement, have one (1) option to renew      (the “FifthRenewal Option”) the      Lease for a term of five (5) years (the “Fifth Renewal Term”),      for the Premises and the Must-Take Space (defined below), on the same      terms and conditions set forth in the Lease, except as modified by the      terms, covenants and conditions as set forth  below. |
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|   | 6.2 | If      Tenant elects to exercise the Fifth Renewal Option, then Tenant shall      provide Landlord with written notice no earlier than the date that is two      hundred seventy (270) days prior to the expiration of the Fifth Extended      Term and no later than the date which is one hundred eighty (180) days      prior to the expiration of the Fifth Extended Term.  If Tenant      fails to provide such notice, Tenant shall have no further or additional      right to extend or renew the Fifth Extended  Term. |
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|   | 6.3 | The      Monthly Rent in effect at the expiration of the Fifth Extended Term shall      be adjusted to reflect the current fair market rental for comparable space      in the Building and in other similar buildings in the same rental market      as of the date the Fifth Renewal Term is to commence, taking into account      the specific provisions of the Lease, as amended hereby, which will remain      constant.  Landlord shall advise Tenant of the new Monthly Rent      for the Premises and the Must-Take Space no later than thirty (30) days      after receipt of Tenant's written request therefor.  Said      request shall be made no earlier than ninety (90) days prior to the first      date on which Tenant may exercise its Fifth Renewal Option under this      Section 6.  Said notification of the new Monthly Rent may      include a provision for its escala­tion to provide for a change in      fair market rental between the time of notification and the commencement      of the Fifth Renewal Term.  If Tenant and Landlord are unable to      agree on a mutually acceptable rental rate not later than sixty (60) days      prior to the expiration of the Fifth Renewal Term, then Landlord and      Tenant shall each appoint a qualified MAI appraiser doing business in the      area, in turn those two indepen­dent MAI appraisers shall appoint a      third MAI appraiser and the majority shall decide upon the fair market      rental for the Premises as of the expiration of the Fifth Renewal      Term.  Landlord and Tenant shall equally share in the expense of      this appraisal except that in the event the Monthly Rent is found to be      within five percent (5%) of the original rate quoted by Landlord, then      Tenant shall bear the full cost of all the appraisal    process. |
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|   | 6.4 | This      Fifth Renewal Option is not transferable; the parties hereto acknowledge      and agree that they intend that the Fifth Renewal Option shall be      “personal” to Tenant and any transferee pursuant to a Permitted Lease      Transfer, as described in Rider 14.1 of the Original Lease, and that in no      event will any assignee or sublessee have any rights to exercise this      Fifth Renewal Option. |
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|   | 6.5 | If      the Fifth Renewal Option is properly exercised or if Tenant fails to      properly exercise the Fifth Renewal Option pursuant to the terms of this      Section 6, Tenant shall have no further right to extend the term of      the Lease. |
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|   | 6.6 | Notwithstanding      anything herein to the contrary, if Tenant validly exercises its Fifth      Renewal Option and has not exercised its Right of First Refusal pursuant      to Section 7 below, effective as of the first day of the Fifth Renewal      Term, Tenant shall be required to lease from Landlord and Landlord shall      be required to lease to Tenant the remainder of the Building comprising      approximately 15,810 rentable square      feet as shown on Exhibit      A hereto (the “Must-Take Space”).  Landlord      shall deliver possession of the Must Take Space to Tenant and Tenant shall      accept such space on the first day of the Fifth Renewal Term (the “Must-Take Effective      Date”).  The Term with respect to the Must-Take Space      (the “Must-Take      Term”) shall end, unless sooner terminated pursuant to the terms of      the Lease, as amended hereby, on the last day of the Fifth Renewal Term,      it being the intention of the parties hereto that the term for the      Must-Take Space and the Term for the Premises shall be      coterminous.  The Must-Take Effective Date shall be delayed to      the extent that Landlord fails to deliver possession of the Must-Take      Space for any reason, including but not limited to, holding over by prior      occupants.  Any such delay in the Must-Take Effective Date shall      not subject Landlord to any liability for any loss or damage resulting      therefrom.  If the Must-Take Effective Date is delayed, the      Termination Date shall not be similarly extended. Tenant agrees to accept      the Must-Take Space in its “as is” condition, without any agreements,      representations, understandings or obligations on the part of Landlord to      perform any alterations, repairs or improvements; provided, however, that      the Must-Take Space shall not have been damaged beyond normal wear and      tear or destroyed as a result of a casualty event or modified for a use      other than general office use, in which case Landlord shall return the      Must-Take Space to a condition habitable for general office use.  As of      the Must-Take Effective Date, the Must-Take Space shall become part of the      Premises and the Premises shall be increased from approximately 29,000      rentable square feet of the Building to 44,810 rentable square feet of the      Building by the addition of the Must-Take Space.  The Must-Take      Space shall be subject to all the terms and conditions of the Lease except      as expressly modified herein and except that Tenant shall not be entitled      to receive any allowances, abatements or other financial concessions      granted with respect to the Premises except as expressly provided in this      Section 6.6.  Landlord shall prepare an amendment (the “Must-Take Amendment”)      adding the Must-Take Space to the Premises on the same terms of the Lease      (including, without limitation, the rental rate) and reflecting the      changes in the Monthly Rent, rentable square footage of the Premises,      Tenant’s Share and other appropriate terms.  A copy of the      Must-Take Amendment shall be sent to Tenant, and Tenant shall execute and      return the Must-Take Amendment to Landlord within fifteen (15) days      thereafter, but the addition of the Must-Take Space on the same terms and      conditions as contained in the Lease shall be fully effective whether or      not the Must-Take Amendment isexecuted. |
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| 7. | Right      of First Refusal. |
|----|------------------------------|

|   |  7.1  | Tenant      shall have the one time right of first refusal (the “Right of First Refusal”)      with respect to the Must-Take Space (hereinafter referred to in this      Section as the “RefusalSpace”).  Tenant’s      Right of First Refusal shall be exercised as follows:  when      Landlord has a prospective tenant, other than the existing tenant in the      Refusal Space, (the “Prospect”) interested in      leasing the Refusal Space, Landlord shall advise Tenant (the “Advice”) of the terms      under which Landlord is prepared to lease the Refusal Space to such      Prospect and Tenant may lease the Refusal Space, under such terms, by      providing Landlord with written notice of exercise (the “Notice of Exercise”)      within four (4) business days after the date of the Advice, except that      Tenant shall have no such Right of First Refusal and Landlord need not      provide Tenant with an Advice if:  (a) Tenant is in default      under the Lease at the time that Landlord would otherwise deliver the      Advice; (b) the Premises, or any portion thereof, is sublet at the time      Landlord would otherwise deliver the Advice; (c) the Lease has been      assigned prior to the date Landlord would otherwise deliver the Advice; or      (d) Tenant is not occupying the Premises on the date Landlord would      otherwise deliver the Advice. |
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|   |            |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
|   |  7.2  |  The      term for the Refusal Space shall commence upon the commencement date      stated in the Advice and thereupon such Refusal Space shall be considered      a part of the Premises, provided that all of the terms stated in the      Advice, including the termination date set forth in the Advice, shall      govern Tenant’s leasing of the Refusal Space and only to the extent that      they do not conflict with the Advice, the terms and conditions of the      Lease shall apply to the Refusal Space.  Tenant shall pay      Monthly Rent and Tenant’s Share of Operating Expenses for the Refusal      Space in accordance with the terms and conditions of the      Advice.  In no event shall the Monthly Rent for the Refusal      Space be less on a per square foot basis than the Monthly Rent for the      Premises. Notwithstanding anything elsewhere in this Section to the      contrary, any leasing of the Refusal Space under this Section will not      include terms or provisions of the Advice that are specific to the parties      involved in the transaction giving rise to the Advice, such as payment of      commissions to the brokers involved in that transaction; options or rights      to expand, contract, renew, extend or shorten the term; security deposit;      and any rights that are personal to the third party making the      Advice.                                                                   |

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|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
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|   | 7.3    | The      Refusal Space (including improvements and personalty, if any) shall be      accepted by Tenant in its condition and as-built configuration existing on      the earlier of the date Tenant takes possession of the Refusal Space or      the date the term for such Refusal Space commences, unless the Advice      specifies work to be performed by Landlord in the Refusal Space, in which      case Landlord shall perform such work in the Refusal Space.  If      Landlord is delayed delivering possession of the Refusal Space due to the      holdover or unlawful possession of such space by any party, Landlord shall      use reasonable efforts to obtain possession of the space, and the      commencement of the term for the Refusal Space shall be postponed until      the date Landlord delivers possession of the Refusal Space to Tenant free      from occupancy by any party. |

|   | 7.4 | The      rights of Tenant hereunder with respect to the Refusal Space shall      terminate on the earlier to occur of (a) Tenant’s failure to exercise its      Right of First Refusal within the four (4) business day period provided in      Section 7.1 above; and (b) the date Landlord would have provided Tenant an      Advice if Tenant had not been in violation of one or more of the      conditions set forth in Section 7.1above. |
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|   | 7.5 | If      Tenant exercises its Right of First Refusal, Landlord shall prepare an      amendment for review by Tenant (the “Refusal Space      Amendment”) adding the Refusal Space to the Premises on the terms      set forth in the Advice and reflecting the changes in the Monthly Rent,      the rentable square footage of the Premises, Tenant’s Share and other      appropriate terms.  A copy of the Refusal Space Amendment shall      be sent to Tenant within a reasonable time after Landlord’s receipt of the      Notice of Exercise executed by Tenant, and Tenant shall promptly review      and respond to the Refusal Space Amendment to Landlord within ten (10)      days thereafter, but an otherwise valid exercise of the Right of First      Refusal shall be fully effective whether or not the Refusal Space      Amendment is executed. |
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|   | 7.6 | Notwithstanding      anything herein to the contrary, Tenant’s Right of First Refusal is      subject and subordinate to (a) the renewal or extension rights of any      tenant leasing all or any portion of the Refusal Space, and (b) the      expansion rights (whether such rights are designated as a right of first      offer, right of first refusal, expansion option or otherwise) of any      tenant of the Building existing on the date  hereof. |
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| 8. | Other      Pertinent Provisions.  Landlord and Tenant agree that,      effective as of the date of this Amendment, the Lease shall be amended in      the following additional respects: |
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|   | 8.1 | Address of      Landlord.  The Address of Landlord set forth in Section 1      of the Original Lease and replaced in Section 7.1 of the Sixth Amendment      is hereby deleted in its entirety and replaced with the      following: |
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|   | 8.2 | Address for Payment of      Rent.  The following shall be added to the Lease after      the Address of Landlord: |
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| 9. | Miscellaneous. |
|----|----------------|

|   | 9.1 | This      Amendment, including Exhibit A (Outline and      Location of Must-Take Space) and Exhibit B (Tenant      Alterations) attached hereto, sets forth the entire agreement between the      parties with respect to the matters set forth herein.  There      have been no additional oral or written representations or      agreements.  Under no circumstances shall Tenant be entitled to      any Rent abatement, improvement allowance, leasehold improvements, or      other work to the Premises, or any similar economic incentives that may      have been provided Tenant in connection with entering into the Lease,      unless specifically set forth in this Amendment.  This Amendment      shall not be relied upon by any other party, individual, corporation,      partnership or entity as a basis for reducing its lease obligations with      Landlord or for any other purpose. |
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|   | 9.2 | Except      as herein modified or amended, the provisions, conditions and terms of the      Lease shall remain unchanged and in full force and  effect. |
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|   | 9.3 | In      the case of any inconsistency between the provisions of the Lease and this      Amendment, the provisions of this Amendment shall govern and      control. |
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|   | 9.4 | Submission      of this Amendment by Landlord is not an offer to enter into this Amendment      but rather is a solicitation for such an offer by      Tenant.  Landlord shall not be bound by this Amendment until      Landlord has executed and delivered the same to  Tenant. |
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|   | 9.5 | The      capitalized terms used in this Amendment shall have the same definitions      as set forth in the Lease to the extent that such capitalized terms are      defined therein and not redefined in this  Amendment. |
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|   | 9.6 | Tenant      hereby represents to Landlord that Tenant has dealt with no broker in      connection with this Amendment other than Colliers      International.  Tenant agrees to indemnify and hold Landlord and      the Landlord Related Parties harmless from all claims of any other brokers      claiming to have represented Tenant in connection with this      Amendment.  Landlord hereby represents to Tenant that Landlord      has dealt with no broker in connection with this Amendment other than      Colliers International.  Landlord agrees to indemnify and hold      Tenant and the Tenant Related Parties harmless from all claims of any      other brokers claiming to have represented Landlord in connection with      this Amendment. |
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|   | 9.7 | Each      signatory of this Amendment represents hereby that he or she has the      authority to execute and deliver the same on behalf of the party hereto      for which such signatory is acting.  Tenant hereby represents      and warrants that neither Tenant, nor any persons or entities holding any      legal or beneficial interest whatsoever in Tenant, are (i) the target of      any sanctions program that is established by Executive Order of the      President or published by the Office of Foreign Assets Control, U.S.      Department of the Treasury (“OFAC”); (ii) designated      by the President or OFAC pursuant to the Trading with the Enemy Act, 50      U.S.C. App.  § 5, the International Emergency Economic Powers      Act, 50 U.S.C. §§ 1701-06, the Patriot Act, Public Law 107-56, Executive      Order 13224 (September 23, 2001) or any Executive Order of the President      issued pursuant to such statutes; or (iii) named on the following list      that is published by OFAC: “List of Specially Designated Nationals and      Blocked Persons.” If the foregoing representation is untrue at any time      during the Term, an Event of Default under the Lease will be deemed to      have occurred, without the necessity of notice to  Tenant. |
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|   | 9.8 | Redress      for any claim against Landlord under the Lease and this Amendment shall be      limited to and enforceable only against and to the extent of Landlord’s      interest in the Building.  The obligations of Landlord under the      Lease are not intended to and shall not be personally binding on, nor      shall any resort be had to the private properties of, any of its trustees      or board of directors and officers, as the case may be, its investment      manager, the general partners thereof, or any beneficiaries, stockholders,      employees, or agents of Landlord or the investment  manager. |
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| LANDLORD:                                                                                       | TENANT:                                                          |
|-------------------------------------------------------------------------------------------------|------------------------------------------------------------------|
|                                                                                            |                                                             |
| WALTON CWCA MISSION INDUSTRIAL      27, L.L.C., a      Delaware limited liability company  | CARDIMA,      INC.,a      Delaware corporation                   |
| By:WCV      Commercial Properties Inc.,an      Illinois corporation,its Authorized    Agent     |                                                             |
|  By:        /s/      Thomas B. Hwang               | By:       /s/      Paul Cheng |
|                                                                                            |                                                             |
| Name:  Thomas      B. Hwang                                                           | Name:  Paul      Cheng                                 |
| Title:     Vice      President, Regional Asset Manager                 | Title:    Chief      Accounting Officer      |
| Dated:   May      13, 2009                                                       | Dated:  May      13, 2009                              |
|                                                                                            |                                                             |

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|   | EXHIBIT      A - OUTLINE AND LOCATION OF MUST-TAKESPACE |
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|   | EXHIBIT      B – TENANT ALTERATIONS |
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