Document:

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                               FIRST AMENDMENT TO
                              AMENDED AND RESTATED
                 WAREHOUSE NOTE PURCHASE AND SECURITY AGREEMENT

     THIS FIRST AMENDMENT TO AMENDED AND RESTATED WAREHOUSE NOTE PURCHASE AND
SECURITY AGREEMENT, dated as of June 29, 2004 (this "AMENDMENT") is by and among
NHELP-III, Inc. as Issuer (the "ISSUER"); DELAWARE FUNDING COMPANY, LLC,
successor to Delaware Funding Corporation, as Note Purchaser ("DFC"), PARK
AVENUE RECEIVABLES COMPANY, LLC, successor to Park Avenue Receivables
Corporation ("PARCO"), THREE RIVERS FUNDING CORPORATION, as Note Purchaser
("TRFC," and together with DFC and PARCO, the "NOTE PURCHASERS"); JPMORGAN CHASE
BANK, as DFC Agent, PARCO Agent and Administrative Agent (in such capacities,
the "DFC AGENT", "PARCO AGENT" and the "ADMINISTRATIVE AGENT", respectively);
MELLON BANK, N.A. as TRFC Agent (the "TRFC AGENT") and amends and supplements
the Amended and Restated Warehouse Note Purchase and Security Agreement, dated
as of March 1, 2004 (as amended through the date hereof, the "AGREEMENT"), by
and among the parties hereto and Wells Fargo Bank, National Association, as
successor eligible lender and successor Trustee (the "TRUSTEE"). Capitalized
terms used herein and not otherwise defined shall have the meanings assigned to
such terms in the Agreement.

                                    RECITALS

     WHEREAS, the parties to the Agreement have agreed to amend and supplement
certain provisions in the Agreement as set forth herein; and

     WHEREAS, pursuant to Section 10.01 of the Agreement, the parties to the
Agreement are permitted to amend the Agreement in writing without the written
agreement of the Trustee, if not affected thereby.

     NOW THEREFORE, in consideration of the premises and the agreements
contained herein, the parties to this Amendment agree as follows:

     SECTION 1. AMENDMENTS.

          (a)  Section 1.01 is hereby amended by inserting the following
     definition in the appropriate alphabetical order:

               "EXTRAORDINARY NOTE PURCHASES" means Note Purchases made on or
          before August 13, 2004 pursuant to Section 2.02(e) hereof in an amount
          identified by the Issuer by written notice delivered in accordance
          with, and in the form required by, Section 2.02 of this Agreement,
          which Note Purchases shall be, in the aggregate, a principal amount
          not to exceed $100,000,000.

          (b)  The definition of "Facility Limit" in Section 1.01 is hereby
     amended by inserting the following before the period at the end thereof:

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          ; PROVIDED, FURTHER, that commencing on June 29, 2004 and ending on
          the date when the Extraordinary Note Purchases (and any Rollover Note
          Purchase related thereto) are repaid in full, the Facility Limit shall
          be increased for all purposes hereunder by the amount of the
          then-outstanding amount of the Extraordinary Note Purchases (and any
          Rollover Note Purchase related thereto), as the same may decrease from
          time to time.

          (c)  The last sentence of the definition of "PRO RATA SHARE" in
     Section 1.01 is hereby amended as follows:

               As of the date of this Agreement, the Pro Rata Share of the DFC
          Agent shall be a fraction (expressed as a percentage), the numerator
          of which is 125 and the denominator of which is 450, the Pro Rata
          Share of the PARCO Agent shall be a fraction (expressed as a
          percentage), the numerator of which is 125 and the denominator of
          which is 450, and the Pro Rata Share of TRFC shall be a fraction
          (expressed as a percentage), the numerator of which is 200 and the
          denominator of which is 450; PROVIDED, HOWEVER, that with respect to
          Extraordinary Note Purchases (and any Rollover Note Purchase related
          thereto), the pro rata share of the DFC Agent shall be 50.0%, the pro
          rata share of the PARCO Agent shall be 50.0% and the pro rata share of
          the TRFC Agent shall be 0.0%.

          (d)  Article VII is hereby amended by inserting (i) the word "or"
     following the semicolon at the end of clause (p) thereof, and (ii) the
     following new clause following clause (q):

               (q)  the Extraordinary Note Purchases are not repaid in full by
          the Issuer on or before the Settlement Date in September 2004;

          (e)  Section 2.02 is hereby amended by inserting a new paragraphs (e)
     and (f) at the end of such section, which shall read as follows:

               (e)  On the terms and conditions set forth herein, DFC and PARCO
          each agrees to make, and the DFC Agent and the PARCO Agent may each in
          its sole discretion make, the Extraordinary Note Purchases on or
          before August 13, 2004. The Maturity Date of the Extraordinary Note
          Purchases shall be the Settlement Date in September 2004.

               (f)  Notwithstanding the provisions of Section 2.05(c)(iii), for
          so long as any portion of the Extraordinary Note Purchases remain
          unpaid by the Issuer on or after the Settlement Date in September
          2004, any Principal and Yield due or accrued on the Note Purchases or
          the Extraordinary Note Purchases on any Settlement Date will be
          payable not later than 1:00 p.m. (New York time) on such Settlement
          Date as follows:

               FIRST, to the Holders and amount equal to accrued and unpaid
               Yield on all outstanding Notes;

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               SECOND, (i) so long as (1) no Event of Default pursuant to any of
               clauses (a) through (p) of Article VII or Termination Date
               pursuant to clause (q) of Article VII has occurred and is
               continuing, (2) no event has occurred (or is anticipated to occur
               after giving effect to the payments to be made on such Settlement
               Date) that with the giving of notice or passage of time or both
               would result in an Event of Default pursuant to any of clauses
               (a) through (p) of Article VII, and (3) all of the conditions to
               a Rollover Note Purchase with respect to maturing Notes (other
               than those associated with the Extraordinary Note Purchases) on
               such Settlement Date have been satisfied (the failure to satisfy
               the terms of any of clauses (1), (2) or (3), a "SECTION 2.02(f)
               EVENT"), to DFC or a DFC Liquidity Provider and to PARCO or a
               PARCO Liquidity Provider, as applicable, an amount of principal
               necessary to repay the outstanding principal of the Notes
               associated with the Extraordinary Note Purchases or (ii) if a
               Section 2.02(f) Event has occurred and is continuing, to each
               Holder pro rata based on its share of the outstanding Notes
               (determined as the percentage equivalent of a fraction, the
               numerator of which is the aggregate principal amount of all Notes
               held by such Holder and the denominator is the aggregate
               principal amount of all Notes), an amount of principal necessary
               to repay the outstanding principal of the Notes; and

               THIRD, to the Holders an amount of principal, net of any Rollover
               Note Purchases, necessary to repay the outstanding principal of
               the Notes and all other Obligations.

     SECTION 2. AGREEMENT IN FULL FORCE AND EFFECT AS AMENDED. Except as
specifically amended hereby, all of the terms and conditions of the Agreement
shall remain in full force and effect. All references to the Agreement in any
other document or instrument shall be deemed to mean such Agreement, as amended
by this Amendment. This Amendment shall not constitute a novation of the
Agreement, but shall constitute an amendment thereof. The parties hereto agree
to be bound by the terms and obligations of the Agreement, as amended by this
Amendment, as though the terms and obligations of this Amendment were set forth
in the Agreement.

     SECTION 3. CONDITIONS PRECEDENT. The effectiveness of this Amendment is
subject to the following conditions precedent: (a) this Amendment has been duly
executed and delivered by each of the parties listed on the signature pages
hereto; and (b) the parties to each of the DFC Asset Purchase Agreement and the
PARCO Asset Purchase Agreement shall execute and deliver an amendment to such
agreement to increase the maximum liquidity purchase thereunder, by an amount
necessary to give effect to the Extraordinary Note Purchases.

     SECTION 4. PRIOR UNDERSTANDINGS. This Amendment sets forth the entire
understanding of the parties relating to the subject matter hereof, and
supersedes all prior understandings and agreements, written or oral.

     SECTION 5. COUNTERPARTS. This Amendment may be executed in any number of
counterparts and by separate parties hereto on separate counterparts, each of
which when

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executed shall be deemed an original, but all such counterparts taken together
shall constitute one and the same instrument.

     SECTION 6. GOVERNING LAW. THIS AMENDMENT SHALL BE GOVERNED BY AND CONSTRUED
IN ACCORDANCE WITH THE LAW OF THE STATE OF NEW YORK.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

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     IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
duly executed by their respective authorized officers as of the day and year
first above written.

                                    DELAWARE FUNDING COMPANY, LLC,
                                       as Note Purchaser

                                    By  JPMorgan Chase Bank, as attorney-in-fact
                                        for Delaware Funding Company, LLC

                                    By:  /s/ Bradley S. Schwartz
                                      ------------------------------------------
                                    Name:
                                    Title:

                                    PARK AVENUE RECEIVABLES
                                       COMPANY, LLC, as Note Purchaser

                                    By:  /s/ Andrew L. Stidd
                                       -----------------------------------------
                                    Name:
                                    Title:

                                    THREE RIVERS FUNDING CORPORATION,
                                       as Note Purchaser

                                    By:  /s/ Bernard J. Angelo
                                       -----------------------------------------
                                    Name:
                                    Title:

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                                    JPMORGAN CHASE BANK,
                                       as DFC Agent and PARCO Agent

                                    By:  /s/ Sara Graff
                                       -----------------------------------------
                                    Name:
                                    Title:

                                    JPMORGAN CHASE BANK,
                                       as Administrative Agent

                                    By:  /s/ Sara Graff
                                       -----------------------------------------
                                    Name:
                                    Title:

                                    MELLON BANK, N.A., as TRFC Agent

                                    By:  /s/ Stephen Cobain
                                       -----------------------------------------
                                    Name:
                                    Title:

                                    NHELP-III, as Issuer

                                    By   /s/ Terry J. Heimes
                                       -----------------------------------------
                                    Name:
                                    Title:

     cc: Wells Fargo Bank, National Association, as TrusteeExhibit 10.1

                                SECOND AMENDMENT
                                       TO
                      AGREEMENT AND PLAN OF REORGANIZATION
                                  BY AND AMONG
                              INTRAOP MEDICAL, INC.
                                       AND
                           INTRAOP MEDICAL CORPORATION

     This Amendment (the "Amendment") to the Agreement and Plan of
Reorganization as amended, is made and entered into as of July 30, 2004 by and
among Intraop Medical, Inc., a Delaware corporation ("Target") and Intraop
Medical Corporation, a Nevada corporation ("Acquiror"). Any capitalized terms
not defined herein shall have the same meanings given to them in the Agreement
(as defined below).

                                    RECITALS

     Whereas Target and Acquiror have entered into that certain Agreement and
Plan of Reorganization as of February 24, 2004, as amended (the "Agreement")
with respect to a plan of reorganization, as result of which Target will be
merged with and into Acquiror.

     Whereas, pursuant to Section 7.1(b) of the Agreement, the Agreement may be
terminated at any time prior to the Effective Time, by written notice by the
terminating party to the other party, by either Acquiror or Target if the Merger
shall not have been consummated by July 31, 2004.

     Whereas, it has become apparent to the parties that the merger is unlikely
to be consummated by July 31, 2004.

     Whereas, Target and Acquiror desire to amend the Agreement as provided
herein.

     Now, therefore, in consideration of the mutual promises, covenants, and
representations contained herein, the parties hereto agree as follows:

                                    AMENDMENT

1)   Section 7.1(b) of the Agreement shall be deleted and entirely replaced with
     the following:

     (b)  by either Acquiror or Target if the Merger shall not have been
          consummated by September 30, 2004, provided, however, that the right
          to terminate this Agreement under this Section 7.1(b) shall not be
          available to any party whose failure to fulfill any obligation under
          this Agreement has been the cause of or resulted in the failure of the
          Merger to occur on or before such date.

2)   This Amendment may be executed in counterparts, each of which shall be an
     original, but all of which together shall constitute one instrument.

3)   Except as otherwise modified hereby, the terms of the Agreement shall
     remain in full force and effect.

     IN WITNESS WHEREOF, Target and Acquiror have caused this Amendment to be
executed and delivered by each of them or their respective officers thereunto
duly authorized, all as of the date first written above.

INTRAOP MEDICAL CORPORATION                         INTRAOP MEDICAL, INC.
(formerly known as DIGITAL PREVIEWS.COM, INC.
By: /s/ David Shamy                                 By: /s/ Donald A. Goer
Name:  David Shamy                                  Name:  Donald A. Goer
Title:  President                                   Title:  President

                                       16

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