Document:

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                                                                    Exhibit 10.1

   Confidential materials omitted and filed separately with the Securities and
                              Exchange Commission.
                          Asterisks denote omissions.

                         OEM PURCHASE AGREEMENT ADDENDUM
                                 BY AND BETWEEN
                PHILIPS MEDICAL SYSTEMS AND CAMBRIDGE HEART, INC.
                                     10/5/01

This addendum amends the OEM Purchase Agreement signed on March 16, 2001 between
Cambridge Heart, Inc and Agilent Technologies. The OEM Purchase Agreement was
automatically assigned to Philips Medical Systems when Agilent Technologies sold
the Healthcare Solutions Group on August 1, 2001 to Philips Medical Systems.

     THE FOLLOWING PARAGRAPHS ARE REVISED IN THEIR ENTIRETY AS FOLLOWS:

3.2  NON-EXCLUSIVE APPOINTMENT. Subject to the terms and conditions of this
     Agreement and commencing on October 1, 2001, the Supplier appoints Philips
     as the Supplier's non-exclusive distributor of the CH 2000 System worldwide
     with the exception of [**]. Philips' distribution rights shall extend to
     any improved OEM Product or other technology for a stress system (excluding
     the Alternans technology and any other technology that is not stress
     related).

4.3  MINIMUM PURCHASE OBLIGATION.

     4.3.1  Philips shall be obligated to purchase a minimum number of OEM
            Products, and shall be obligated to make the minimum payments to
            Supplier as set forth in EXHIBIT C. Only the CH 2000 systems sold in
            the US will count against the minimums, international sales of
            CH 2000 are incremental opportunities.

EXHIBIT A TO THE OEM PURCHASE AGREEMENT IS REVISED AS FOLLOWS, TWO PLACES,
CH2000 AND SW KIT. DATA EXPORT INTERFACE [**]

EXHIBIT H TO THE OEM PURCHASE AGREEMENT IS REVISED AS FOLLOWS
-------------------------------------------------------------------------------
  Part Number    Description                                           Distr. $
-------------------------------------------------------------------------------
   200093-003    NIBP Interface Cable                                     $[**]
-------------------------------------------------------------------------------
    10072-001    Analog Interface Card                                    $[**]
-------------------------------------------------------------------------------
  20-0809-001    CD Writer for CH 2000 System (includes hardware)         $[**]
-------------------------------------------------------------------------------
  20-0809-xxx    CD Writer Software Only                                  $[**]
-------------------------------------------------------------------------------
  10-0224-001    Data Interfacing Output (including Adobe)                $[**]
-------------------------------------------------------------------------------

     All other terms of the OEM Purchase Agreement and the Exhibits thereto
remain unchanged.

APPROVED AND AGREED TO:

SUPPLIER:                                     PHILIPS MEDICAL SYSTEMS

By:          /s/ DAVID CHAZANOVITZ        By:  /s/ GARY E. HUTCHINSON
   ---------------------------------        ----------------------------------
Typed Name:    DAVID CHAZANOVITZ         Typed Name:     GARY E. HUTCHINSON
           -------------------------                --------------------------
Title:   CEO                             Title:   VP/GM CARDIOLOGY DIVISION
      ------------------------------           ------------------------------
Date:          10/5/01                   Date:             10/5/01
    --------------------------------          --------------------------------<PAGE>

                                                                    EXHIBIT 10.1

                   FIRST AMENDMENT TO THE TERM LOAN AGREEMENT

THIS FIRST AMENDMENT ("Amendment") dated as of October 1, 2001 by and between
KeyBank National Association ("Lender") and Hardinge, Inc. ("Borrower") to the
$24,000,000 Term Loan Agreement executed March 20, 2001.

WHEREAS, certain changes are to be made to the Term Loan Agreement including
certain modifications to SECTION VI: NEGATIVE COVENANTS contained therein.

THEREFORE, the parties hereby acknowledge and agree to the following:

1.       6.01. FINANCIAL COVENANTS has been amended as follows:

During the term hereof, the Borrower on a consolidated basis shall not:

(a)      PERMIT THE RATIO OF (i) TOTAL FUNDED DEBT TO THE EBITDA OF THE
         BORROWER, CALCULATED AT THE SAME POINT IN TIME, TO BE GREATER THAN 3.25
         TO 1.00 AT ANY TIME THROUGH AND INCLUDING MARCH 31, 2002, AND (ii)
         TOTAL FUNDED DEBT TO THE EBITDA OF THE BORROWER, CALCULATED AT THE SAME
         POINT IN TIME, TO BE GREATER THAN 3.00 TO 1.00 BY JUNE 30, 2002 AND
         SEPTEMBER 30, 2002, AND (iii) TOTAL FUNDED DEBT TO THE EBITDA OF THE
         BORROWER, CALCULATED A THE SAME POINT IN TIME, TO BE GREATER THAN 2.75
         TO 1.00 BY DECEMBER 31, 2002, AND 2.50 TO 1.00 AT THE END OF EACH
         FISCAL QUARTER THEREAFTER, MEASURED QUARTERLY AS OF THE PERIOD OF THE
         FOUR MOST RECENTLY COMPLETED FISCAL QUARTERS OF THE BORROWER. THIS
         COVENANT SHALL EXCLUDE THE $39,000,000 PRE-TAX NON-RECURRING CHARGE
         TAKEN IN THE THIRD QUARTER OF FISCAL YEAR 2001.

(b)      PERMIT THE FIXED CHARGE COVERAGE RATIO OF THE BORROWER (i) TO BE LESS
         THANK 1.75 TO 1.00 BY SEPTEMBER 30, 2001, AND (ii) TO BE LESS THAN 1.50
         TO 1.00 BY DECEMBER 31, 2001, AND (iii) TO BE LESS THAN 1.25 TO 1.00 BY
         MARCH 31, 2002, JUNE 30, 2002, AND SEPTEMBER 30, 2002, AND (iv) TO BE
         LESS THAN 1.50 TO 1.00 BY DECEMBER 31, 2002 AND AT THE END OF EACH
         FISCAL QUARTER THEREAFTER, MEASURED QUARTERLY AS OF THE PERIOD OF THE
         FOUR THEN MOST RECENTLY COMPLETED FISCAL QUARTERS OF THE BORROWER. THIS
         COVENANT SHALL EXCLUDE THE $39,000,000 PRE-TAX NON-RECURRING CHARGE
         TAKEN IN THE THIRD QUARTER OF FISCAL YEAR 2001.

2.       6.08. CONSOLIDATIONS, MERGERS, ACQUISITIONS AND SALES OF ASSETS, as
         follows, has been waived until the fiscal quarter ending September 30,
         2002.

(d)      the Borrower of any Subsidiary may sell, lease or otherwise dispose of
         any of its assets (other than as permitted by clauses (a) to (c)
         inclusive), PROVIDED that the aggregate net book value of all assets of
         the Borrower and its Subsidiaries sold, leased or otherwise disposed of
         during any fiscal year of the Borrower pursuant to this clause (d)
         shall not exceed 5% of the Consolidated Tangible Net Worth of the
         Borrower and its Subsidiaries at the end of the preceding fiscal year.

<PAGE>

         All sales, leases or dispositions of assets pursuant to clause (b),
(c), or (d) shall be at fair market value.

This Amendment is entered into pursuant to and in accordance with Section 9.03
of the Term Loan Agreement. Except as expressly amended herein, the Term Loan
Agreement and other loan documents to which the Borrower is a party is hereby
restated, ratified and confirmed and shall remain in full force and effect.

IN WITNESS WHEREOF, the parties hereto have caused this First Amendment to the
Term Loan Agreement to be duly executed and delivered.

HARDINGE, INC.

By:  /s/ THOMAS T. CONNELLY
     ------------------------------
     Thomas T. Connelly
     Its: Treasurer

KEYBANK NATIONAL ASSOCIATION

By:  /s/ ALBERT G. WHITE, III
     ------------------------------
     Albert G. White, III
     Senior Vice President<PAGE>

                                                                    EXHIBIT 10.2

                             AMENDMENT NUMBER THREE

         This Amendment Number Three is dated as of September 20, 2001 and is to
the Credit Agreement among Hardinge Inc., the Bank's signatory thereto and The
Chase Manhattan Bank as Agent, dated August 1, 1997 and amended by Amendment
Number One dated as of December 11, 2000 and Amendment Number Two dated as of
February 5, 2001 (as amended the "Agreement"). Terms used but not otherwise
defined herein shall have the meanings ascribed thereto in the Agreement.

         The Borrower has determined to make certain adjustments to its
financial statements and to recognize a nonrecurring charge to its earnings for
the fiscal year ending December 31, 2001 in an amount not to exceed Thirty-nine
Million Dollars ($39,000,000.00) (the "Earnings Charge").

         In order to further amend the Agreement, the parties agree as follows:

         1. The definition of "Earnings Before Interest, Taxes, Depreciation and
Amortization" as set forth in Section 1.01 of the Agreement shall be amended
effective as of the date of this Amendment Number Three, 2001 to read as
follows:

                  "Earnings Before Interest, Taxes, Depreciation and
                  Amortization" means Consolidated Net Income prior to the
                  deduction of interest expense, prior to the deduction of
                  federal or foreign corporate income and corporate franchise
                  taxes, prior to the deduction of depreciation and amortization
                  and prior to the Earnings Charge. Notwithstanding anything to
                  the contrary set forth herein, for the twelve (12) months
                  following the Acquisition Date, Earnings Before Interest,
                  Taxes, Depreciation and Amortization shall be calculated as if
                  the Acquisition Date was January 1, 2000.

         2. The definition of "Margin" as set forth in Section 1.01 of the
Agreement shall be amended effective as of the date of this Amendment Number
Four to read as follows:

                  "Margin" means for each Variable Rate Loan zero (0) Basis
                  Points and for each Eurodollar Loan one hundred fifty (150)
                  Basis Points.

         3. The sale, lease, or other disposition of assets related to the
Earnings Charge shall be exempt from the limitations of Section 7.05 of the
Agreement.

         4. Section 8.02 of the Agreement shall be amended to require that the
minimum Consolidated Tangible Net Worth for the fiscal year ending December 31,
2001 and for each fiscal year thereafter, shall at all times be at least One
Hundred Thirty Million Dollars ($130,000,000.00).

<PAGE>

         5. Upon execution of this Amendment Number Three, the Borrower shall
pay to the Agent an amendment fee in the amount of Fifty Thousand Dollars
($50,000.00).

         6. Section 8.03 of the Agreement shall be amended to the effect that
Borrower shall maintain a ratio of Funded Debt to Earnings Before Interest,
Taxes, Depreciation and Amortization of not greater than 3.25 to 1 through June
29, 2002 and 3.0 to 1 from June 30, 2002 and thereafter, as measured as of the
last day of each fiscal quarter for the immediately preceding twelve (12)
months.

         7. This Amendment Number Three may be executed in any number of
counterparts, all of which taken together shall constitute one and the same the
instrument, and any parties hereto may execute this Amendment Number Three by
signing any such counterpart.

         8. Other than as set forth in this Amendment Number Three, the terms
and conditions of this Agreement, shall remain in full force and effect.

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

                                               HARDINGE INC.

                                      By:  /s/ J. PATRICK ERVIN
                                           -------------------------------------
                                            J. Patrick Ervin,  President
                                            and Chief Executive Officer

                                      AGENT:

                                      THE CHASE MANHATTAN BANK

                                      By:  /s/ CHRISTINE M. McLEOD
                                           -------------------------------------
                                            Christine M. McLeod, Vice President

<PAGE>

                                      BANKS:

                                      THE CHASE MANHATTAN BANK

                                      By:  /s/ CHRISTINE M. McLEOD
                                           -------------------------------------
                                            Christine M. McLeod, Vice President

                                      FLEET NATIONAL BANK
                                      Successor to Fleet Bank

                                      By:  /s/ JOANNE TEASDALE
                                           -------------------------------------
                                            Joanne Teasdale, Vice President

                                      MANUFACTURERS AND TRADERS
                                      TRUST COMPANY

                                      By:  /s/ SUSAN A. BURTIS
                                           -------------------------------------
                                            Susan A. Burtis, Vice President

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