Document:

Exhibit 10.4

THE CONFIDENTIAL PORTIONS OF THIS EXHIBIT, WHICH HAVE BEEN REMOVED AND REPLACED
WITH AN ASTERISK, HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND
EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT UNDER RULE
405 PROMULGATED UNDER THE SECURITIES ACT OF 1933 AND RULE 24b-2 UNDER THE
SECURITIES EXCHANGE ACT OF 1934.

                AMENDMENT NO. 5 TO SUPPLIER PARTNERING AGREEMENT
                            BETWEEN GREATBATCH, INC.
               AND PACESETTER, INC. (d/b/a ST. JUDE MEDICAL CRMD)

This Amendment (the "Amendment No. 5") to the Supplier Partnering Agreement is
between Greatbatch, Inc., a Delaware corporation ("Seller"), and Pacesetter,
Inc. d/b/a "St. Jude Medical CRMD", a California corporation ("Buyer" or "St.
Jude"). Seller and Buyer are collectively referred to herein as the "Parties".
This Amendment is entered into effective as of 1 March 2007 (the "Effective
Date").

BACKGROUND

     A.   Buyer and Seller entered into a Supplier Partnering Agreement (the
          "Agreement") effective 01 January 2004.

     B.   Buyer and Seller entered into an Amendment No. 1 to the Agreement
          effective 01 January 2005.

     C.   Buyer and Seller entered into an Amendment No. 2 to the Agreement
          effective 27 July 2005. Amendment No. 2 is void.

     D.   Buyer and Seller entered into an Amendment No. 2 to the Agreement
          effective 01 January 2006 which included a revised Exhibit "F"
          regarding molded header assemblies, which was amended to properly
          reflect that it really is Amendment No. 3 on 01 January 2006.

     E.   Buyer and Seller entered into an Amendment No. 4 to the Agreement
          effective 01 January 2006, which included a replacement to Exhibit "C"
          with revised Exhibit "G" for pricing on Filtered Feedthroughs.

     F.   The Parties agree to continue good faith negotiations towards
          expanding the business relationship between the Buyer and Seller.

     G.   This Amendment No. 5 amends the Agreement as herein provided and,
          among other things, shall supersede and replace Amendment No. 1 in its
          entirety, all as of the Effective Date.

     H.   The Parties to the Agreement desire to revise the following:

          a.   The Initial Term of the Agreement

<PAGE>

          b.   The pricing and terms for certain Batteries
          c.   The development of Tantalum Capacitors
          d.   The safety stock requirements for Batteries
          e.   The definition of new products to include Sensor Assemblies
          f.   The pricing and terms for Feedthroughs and Filtered Feedthroughs
          g.   The pricing and terms for Platinum Components
          h.   The pricing and terms for Machined / Molded Components
          i.   The pricing for Enclosures

AGREEMENT

In consideration of the foregoing Recitals and the Parties' mutual covenants
contained herein, the Parties hereby agree as follows:

     1.   Any specially capitalized terms used and not otherwise defined in this
          Amendment shall have the meanings set forth in the Agreement.

     2.   As of the Effective Date, the initial term of the Agreement is hereby
          amended so that it will remain in force until 31 December 2013
          ("Initial Term"). Section 9 to Exhibit A of the Agreement (Option to
          Extend the Agreement) is hereby deleted in its entirety.

     3.   The Buyer shall have the option to extend the term of this Agreement
          beyond the Initial Term for a period of two (2) years ("Option
          Extension Period") by delivering written notice to Seller not less
          than ninety (90) days prior to the extension date. The parties further
          agree that:

            3.1 The prices for Products, including but not limited to Batteries,
            Feedthroughs, Components and Enclosures during the Option Extension
            Period of the Agreement (if any) shall be, at the option of Seller
            either: (a) the last prices charged by Seller to Buyer for each such
            Product prior to the Option Extension Period, or (b) prices for each
            such Product determined by Seller which gives Seller an average
            gross margin for each Product type then covered by this Agreement as
            amended: [for example for all Batteries (in the aggregate), for all
            Feedthroughs (in the aggregate), for all Components (in the
            aggregate) and for all Enclosures (in the aggregate)] sold to Buyer
            in each year of the Option Extension Period, which is equal to the
            average gross margin obtained by Seller for all Products in that
            Product category sold by Seller to Buyer in Seller's 2012 and 2013
            fiscal years averaged.

<PAGE>

            3.2 If Seller elects pricing under Paragraph 3.1(b) above, Seller
            will notify Buyer as soon as is reasonably possible, as to the
            pricing applicable for the Option Extension Period. At the election
            of Buyer, Seller's pricing shall be subject to audit by
            PricewaterhouseCoopers (or its successor), who will issue a binding
            opinion as to the amount of the price increase that Seller is
            entitled to impose with respect to each Product type: [for example,
            Batteries (in the aggregate), Feedthroughs (in the aggregate),
            Components (in the aggregate) and Enclosures (in the aggregate)].
            Seller will cooperate with the audit and make its books and records
            available to the accounting firm so that the accounting firm can
            issue its opinion within thirty (30) days of its appointment by
            Buyer. If the audit price is within ten percent (10%) of the price
            quoted by Seller, then Buyer will be solely responsible for the cost
            of the accounting firm. If the price quoted by Seller is more than
            ten percent (10%) above the audit price, then Seller will be solely
            responsible for the cost of the accounting firm.

          "Gross margin" under Paragraph 3.1(b) above shall: (a) be calculated
          according to Generally Accepted Accounting Principles (GAAP) and in a
          manner consistent with Seller's previous practices; and (b) exclude
          any unreasonable or extraordinary costs.

          Seller, Buyer, and PricewaterhouseCoopers will cooperate in good faith
          to establish the relevant categories of costs to be included in the
          calculation of gross margin. If Seller and Buyer have not agreed to
          composition of the relevant costs within thirty (30) days, then the
          relevant costs will be finally determined by PricewaterhouseCoopers.
          Seller and Buyer will cooperate and negotiate in good faith in
          connection with allocating the aggregate price increases permitted by
          Buyer under Paragraph 3.1(b) above among individual Products to be
          purchased by Buyer during the "Option Extension Period."

     4.   As of the Effective Date, Part I.A. of Exhibit B of the Agreement is
          hereby amended to incorporate the new scheduled pricing and the new
          terms for the base price of Lithium Iodine Bradycardia Batteries as
          set forth according to the table below:

     ---------------------------------------------------------------------------
                                Lithium Iodine Pricing

     Model    2007      2008      2009      2010      2011      2012      2013
     -----    ----      ----      ----      ----      ----      ----      ----
      8077    $ *       $ *       $ *       $ *       $ *       $ *       $ *
      8711    $ *       $ *       $ *       $ *       $ *       $ *       $ *
      9107    $ *       $ *       $ *       $ *       $ *       $ *       $ *
      9438    $ *       $ *       $ *       $ *       $ *       $ *       $ *
      9918    $ *       $ *       $ *       $ *       $ *       $ *       $ *
     ---------------------------------------------------------------------------

     Lithium Iodine Bradycardia Battery Terms
          a. Purchase Requirements: * of Buyer's total bradycardia device
          battery demand to be purchased from Seller
          b. Pricing schedules for each calendar year listed in Lithium Iodine
          table above are effective only if total lithium iodine battery unit
          demand is forecasted by Buyer, per Section 5 of the Supplier
          Partnering Agreement, to exceed * units for the subsequent calendar
          year. If Buyer's total lithium iodine battery unit demand forecast is
          less than * units for the subsequent calendar year, the price will be
          set according to the pricing schedule of the most recent calendar year
          where at least * units were shipped to Buyer
          c. Pricing applies for current models with standard shape and pin
          modifications
          d. Price premiums based upon shape and/or terminal modification
          complexity will apply.

<PAGE>

     5.   As of the Effective Date, Part I.A. of Exhibit B of the Agreement is
          hereby amended to incorporate the new scheduled pricing and the new
          terms for the base price of SVO Multiplate Defibrillator Batteries as
          set forth according to the tables below:

                ------------------------------------------------
                        SVO Multiplate Legacy Products

                     Annual Quantity           Base
                        by Model            Unit Price
                        --------            ----------
                            *                   *
                            *                   *
                            *                   *
                ------------------------------------------------

--------------------------------------------------------------------------------

                       High Temperature Pressed Powder SVO

                                          Base Unit Pricing
  Annual Quantity                         -----------------
     by Model         2007     2008     2009     2010     2011     2012     2013
     --------         ----     ----     ----     ----     ----     ----     ----
         *             *        *        *        *        *        *        *
         *             *        *        *        *        *        *        *
--------------------------------------------------------------------------------

--------------------------------------------------------------------------------
                           Nano SVO or USVO Multiplate
                          Unit Pricing for Basic Cells

  Year                Y1       Y2       Y3       Y4       Y5       Y6       Y7
  ----                --       --       --       --       --       --       --
  All Volumes         *        *        *        *        *        *        *
--------------------------------------------------------------------------------

     SVO Multiplate Defibrillator Battery Terms
          a. Purchase Requirements: * of Buyer's total tachycardia device
          battery demand to be purchased from Seller
          b. Annual aggregate quantity by model table (Quantity) for "SVO
          Multiplate Legacy Products" and "Model 2255/High Temperature Pressed
          Powder SVO" determined by battery model table based on Buyer's
          calendar year forecast updated *, Retroactive price adjustments will
          not be permitted. A battery model will be considered the same for
          aggregate base model pricing if the same case and internal components
          are utilized. The following battery model groupings apply:

               1. M2150 (SVO Multiplate Legacy Products)
               2. M2156/2356/2556 (SVO Multiplate Legacy Products)
               3. M2353 (SVO Multiplate Legacy Products)
               4. M2255/2555/2655 (High Temperature Pressed Powder SVO)

<PAGE>

          For the first year of a product, Quantity will be determined by the
          Buyer's forecast for the *. For subsequent periods, the Annual
          Quantity will be based on Buyer's * updated on a *. Retroactive price
          adjustments will not be permitted. For the "Model 2255/High
          Temperature Pressed Powder SVO" table, if Buyer's total aggregate
          forecast volume demand for a given battery model grouping is less than
          * units for a subsequent calendar year, the price for that model
          grouping will be set according to the pricing schedule of the most
          recent calendar year where at least * units were shipped to Buyer.
          c. Year 1 (Y1) pricing for Nano SVO or USVO Multiplate applies to the
          first consecutive * that the Buyer's forecast volumes for the
          technology equals or exceeds * units. A price of * each applies prior
          to the Buyer's forecast equaling or exceeding * units in a *.
          d. Pricing applies to current technologies referred to as High
          Temperature Pressed Powder/High Temperature Sheet (HTPP/HTS) and Nano
          SVO or USVO
          e. Price premiums based upon shape and/or terminal modification
          complexitywill apply.
          f. NRE charges for custom designed cells will be * per development
          program. A rebate of * per unit will be applied to the * of this model
          purchased by the Buyer after completion of qualification. The rebate
          will expire upon the earlier of the following:
               i) * after completion of the product qualification by the Seller
                           -or-
               ii) Expiration of the Agreement.
          g.   NRE charge for conversion of an existing model to Nano SVO or
               USVO will be * per model conversion.

     6.   As of the Effective Date, Part I.A. of Exhibit B of the Agreement for
          QMR technology (term 2) is hereby amended as follows (Quasar Medium
          Rate (MR) Cell Prcing and terms 1, 3, 4 and 5 remain the same and are
          provided below for reference):

               Quasar Medium Rate (MR) Cell Pricing

                 -------------------------- --------------------------
                         Units/Year                   Price
                 -------------------------- --------------------------
                              *                         *
                 -------------------------- --------------------------
                              *                         *
                 -------------------------- --------------------------

               1. Purchase Requirements: * of Buyer's total bradycardia device
                battery demand to be purchased from Seller
               2. Quasar MR "Units per Year" include all models and will be
                based on Buyer's *. Retroactive price adjustments will not be
                permitted. For the first year of a product, Quantity will be
                determined by the Buyer's forecast for the *. For subsequent
                periods, the Annual Quantity will be based on Buyer's calendar
                year forecast updated on *.
               3. Minimum annual quantity per model * pieces
               4. Quasar MR pricing shown above is for stainless steel encased,
                single cathode plate construction cells
               5. Price premiums based upon shape and/or terminal modification
                complexity apply.

     7.   As of the Effective Date, Part I.A. of Exhibit B of the Agreement is
          hereby amended to incorporate the new scheduled pricing and the new
          terms for the base price of carbon monofluoride (CFx) basic cell
          pricing as set forth according to the table below:

<PAGE>

                 -----------------------------------------------------

                                            CFx

                     Annual Quantity by Model         Price
                     ------------------------         -----
                                 *                      *
                                 *                      *
                                 *                      *
                                 *                      *
                 -----------------------------------------------------

     Carbon Monofluoride (CFx) Battery Terms
          a. Purchase Requirements: * of Buyer's CFx device battery demand to be
          purchased from Seller
          b. "Annual Quantity by Model" (Quantity) determined by battery model
          and will be based on Buyer's calendar year forecast updated on a *..
          Retroactive price adjustments will not be permitted. For the first
          year of a product, the Annual Quantity will be determined by the
          Buyer's forecast for the *. For subsequent periods, Quantity will be
          based on Buyer's calendar year forecast updated on a *.. Retroactive
          price adjustments will not be permitted.
          c. Minimum annual quantity per model * pcs.
          d. CFx pricing shown above is for stainless steel encased, single
          cathode plate construction cells
          e. Price premiums based upon shape and/or terminal modification
          complexity will apply.
          f. The above CFx price table is based on the premise that GB proves
          the QMR technology functional by *. If GB is not successful in
          qualifying the QMR technology, then the CFx pricing from Part I.A. of
          Exhibit B of the Agreement applies.

     8.   As of Effective Date, Part I B of Exhibit B of the Agreement is hereby
          amended to read in its entirety as follows:

     "Battery Inventory

               1.   Seller's obligation under the Agreement to maintain
                    inventory is limited to the level reflected in "Inventory
                    Requirement" column of the table set forth below (subject to
                    Item 5 below)
               2.   The "Inventory Requirement" is that Seller maintain
                    inventory that can be processed by Seller to completion and
                    shipped to Buyer within *
               3.   Seller inventories will be replenished within a period of *
               4.   All inventory levels adjusted quarterly per Buyer's updated
                    forecast
               5.   Safety Stock requirement for Buyer's location is Sweden (AB)
                    is limited to Consignment Inventory only
               6.   Buyer and Seller agree to work together to minimize
                    inventory obsolescence costs. Buyer is responsible for
                    finished inventory and work in process necessary to sustain
                    safety stock levels.

<PAGE>

--------------------------------------------------------------------------------
              Battery                             Required Inventory*
--------------------------------------------------------------------------------
           Lithium Iodine                         * of annual forecast
--------------------------------------------------------------------------------
                SVO                               * of annual forecast
--------------------------------------------------------------------------------
                CFx                               * of annual forecast
--------------------------------------------------------------------------------
                QMR                               * of annual forecast
--------------------------------------------------------------------------------

* will be held off-site for Disaster Recovery purposes.
* is the target date to achieve above inventory requirements."

     9.   Within * of the Effective Date of this Amendment, Buyer and Seller
          agree to entertain exploratory discussions aimed at developing a high
          rate battery targeted for emerging markets. This program will be a
          high priority strategic initiative for both Buyer and Seller. This
          battery will at minimum maintain current safety requirements and will
          target a step function improvement in cost. Performance tradeoffs
          around longevity, charge times, size and other key attributes will
          need to be made to achieve the above goals. The Parties acknowledge
          that this Product is not available today and agree to jointly explore
          the options for developing such a Product. Upon the annual anniversary
          date of this Amendment No. 5, if the Buyer does not see satisfactory
          progress on this initiative by the Seller, a meeting will be called by
          the Buyer and the Seller will have * to rectify the Buyer's concerns.
          If lack of progress for issues identified in the meeting continues the
          Buyer retains the right to reduce the minimum purchase requirements in
          Sub-section 5a of this Amendment No. 5 to *.

     10.  As of Effective Date, Part II of Exhibit B of the Agreement is hereby
          amended to add a new subpart "D" which reads in its entirety as
          follows:
           "D. The Seller agrees at the Buyer's request to complete a custom
           designed Capacitor Development Program for an NRE charge of *. The
           Seller will then rebate the Buyer * per unit of Capacitors purchased
           for the * of this model purchased by the Buyer after completion of
           the qualification. The rebate will expire upon the earlier of the
           following:
               i)   * after completion of the product qualification by the
                    Seller
                           -or-
               ii)  Expiration of the Agreement."

     11.  As of Effective Date, Section 7 of Exhibit A of the Agreement is
          hereby amended to include Sensor Assemblies as a New Product subject
          to the terms of the Agreement. Buyer and Seller shall negotiate in
          good faith a Sensor Collaborative Development Agreement to be executed
          no later than * from execution of this Amendment No.5. Upon successful
          qualification of Sensor Assembly Product by Seller, Seller shall have
          the right of first refusal to manufacture the Product according to the
          terms set forth in such agreement.

     12.  As of the Effective Date of this Amendment No. 5, Section 7 of Exhibit
          A of the Agreement is hereby amended to include a new Sub-section 7.3
          which reads in its entirety as follows:

            "*"

<PAGE>

     13.  As of Effective Date, Section 1 of Exhibit A of the Agreement is
          hereby amended to add a new subpart which will read in its entirety as
          follows:

            1.9 "Sensor Assemblies" means implantable optical biological
            detection technologies including but not limited to the sensor
            programs currently known as Photophlethysmography "PPG" and "SVO2."

     14.  As of Effective Date, Amendment No. 4 Exhibit G of the Agreement is
          hereby amended to read in its entirety as follows:

<TABLE>
<CAPTION>
-------------------------------------------------------------------------------------------------------------
                                           Filtered Feedthrough*

                                               Unit Pricing

Component                        SJM Part #            2007    2008    2009    2010    2011    2012    2013
---------                        ----------            ----    ----    ----    ----    ----    ----    ----
<S>                              <C>                    <C>     <C>     <C>     <C>     <C>     <C>     <C>
LV Quad Square Flange            60002780-002           *       *       *       *       *       *       *

LV Quad Angled Flange            60002780-004           *       *       *       *       *       *       *

Microny                          6327659                *       *       *       *       *       *       *

Regency                          2054583                *       *       *       *       *       *       *

ATLAS 2 6-pin Shortlead          10009229-002           *       *       *       *       *       *       *

Quadpolar                        8001713                *       *       *       *       *       *       *

Quadpoloar                       3001206                *       *       *       *       *       *       *

ATLAS 2 4-pin                    10009230-001           *       *       *       *       *       *       *

ATLAS 2 6-pin                    10009229-001           *       *       *       *       *       *       *

Photon Micro H                   1080492-004            *       *       *       *       *       *       *

Photon Micro II                  10007259               *       *       *       *       *       *       *

Dual Quadpolar                   60004415-001           *       *       *       *       *       *       *

Dual Quadpolar                   60004415-002           *       *       *       *       *       *       *
-------------------------------------------------------------------------------------------------------------
</TABLE>

*The price of platinum metal used for calculations is the London spot market
closing price as of *. It is * per Troy ounce.

<PAGE>

          a. Purchase Requirements: Minimum * of Buyer's overall Feedthrough
          (including filtered) requirements to be purchased from Seller.

     15.  As of the Effective Date, Part B of Exhibit D of the Agreement is
          hereby amended to incorporate the new scheduled pricing for Platinum
          Components, which will now be referred to as Coated Components, and
          additional terms for Coated Components:

          ----------------------------------------------------------------------

                                       Coated Component

                                         Unit Pricing

         Component         SJM Part #                   GB Part #     Unit Price
         ---------         ----------                   ---------     ----------
         Ring              2106342 / 6042379-001        1005701       *
         Tip               2106334 / 6042378-001        1005801       *
         Eluting Tip       6041783-097                  0959201       *
         Helix             6041706-002                  0957001       *

          ----------------------------------------------------------------------

               3.   GB will be offered the opportunity to quote on new part
                    numbers, and, assuming GB's pricing, responsiveness to
                    requests for quotes and leadtimes are acceptable, additional
                    part numbers will be added to the pricing tables as new
                    programs are introduced.
               4.   A minimum of * of Buyer's demand for part numbers 2106342 /
                    6042379-001 and 2106334 / 6042378-001 to be purchased from
                    the Seller.

     16.  As of the Effective Date, Part C of Exhibit D of the Agreement is
          hereby amended to incorporate the new scheduled pricing for Other
          Machined/Molded Components and additional terms for Other
          Machined/Molded Components:

<PAGE>

                          Machined / Molded Component

                                  Unit Pricing

Machined Part                                      Part #          Unit Price
-------------                                      ------          ----------

SET SCREW ALL                                   6041534-001             *
WASHER/1388 LEADS (2 PER)                       6041701-001             *
SPACER                                          6041696-002             *
SET SCREW                                       6041504-001             *
RING                                            6041697-001             *
CONNECTOR PIN                                   6041555-001             *
PROXIMAL RING                                   6041266-002             *
CRIMP CORE                                      6041693-001             *
SEPTUM RING                                     3001236                 *
HEADER COUPLING                                 6041994-001             *
CONNECTOR BLOCK                                 6041809-001             *
ICD CONNECTOR BLOCK                             10001534                *
ICD CONNECTOR BLOCK                             10001535                *
ICD CONNECTOR BLOCK                             10001536                *
ICD CONNECTOR BLOCK                             40000332-001            *
ICD CONNECTOR BLOCK                             40000331-001            *
CONNECTOR ASSEMBLY (IS-1)                       7001441-012             *
CONNECTOR ASSEMBLY                              7001630-001             *
A-CONNECTOR ASSEMBLY                            7002236-001             *
V-CONNECTOR ASSEMBLY                            7002237-001             *
L-CONNECTOR SUB-ASSEMBLY, A-CHAMBER             7002323-001             *
L-CONNECTOR SUB-ASSEMBLY, V-CHAMBER             7002323-002             *
T CONNECTOR W/WIRE (LV)                         7002443-004             *
T CONNECTOR W/WIRE (RV)                         7002443-005             *
T CONNECTOR W/WIRE (A)                          7002443-006             *

               1.   GB will be offered the opportunity to quote on new part
                    numbers, and, assuming GB's pricing, responsiveness to
                    requests for quotes and leadtimes are acceptable, additional
                    part numbers will be added to the pricing tables as new
                    programs are introduced.

     17.  As of the Effective Date, Part A of Exhibit E of the Agreement is
          hereby amended to incorporate the new scheduled pricing for
          Enclosures:

<PAGE>

                                   Enclosures

                                  Unit Pricing

     Part #         Unit Price                   Part #         Unit Price
     ------         ----------                   ------         ----------

  02065589               *                   6012054-001             *
  02074441               *                   6012054-002             *
  02101582               *                   6042356-001             *
  02101590               *                   6042356-002             *
  6201847                *                   6042372-001             *
  6201854                *                   6042372-005             *
  6231463                *                   6042372-006             *
  6231471                *                   10006573                *
  10007741               *                   40002540-001            *
  10007742               *                   40002540-002            *
  10008938               *                   40002544-001            *
  10008939               *                   40002544-002            *
  10008940               *                   60008403-001            *
  10008941               *                   60008403-002            *
  10009060-001           *                   60008403-003            *
  10009061-001           *                   60008403-004            *
  6011200-001            *
  6011200-002            *
  6011200-005            *
  6011200-006            *

     18.  As of the Effective Date, Section 3 of the Agreement is hereby amended
          to incorporate:

            "3.1 Price Adjustments for Significant Cost Impact. The price for
            any Product may be adjusted up or down during the term of this
            agreement, by mutual consent, if there is significant impact to the
            final cost of the Product:
            (a) In the case of Platinum, the price of any Product is subject to
                upward or downward modification from time to time due to an
                increase or decrease, as the case may be, in the cost of
                Platinum to Seller. Any price modifications will be indexed and
                based upon the "one year" Futures Contract Price as reported by
                Johnson Matthey on any day between *, at Buyers selection, of
                each contract year. Buyer is required to have provided a
                forecast for all Products for the following calendar year and
                the Seller is required to have accepted that forecast a minimum
                of * before the day in * selected by the Buyer. On the day
                selected by the Buyer, the Buyer is required to communicate its
                selection to the Seller's Global Account Manager and Customer
                Service Representative. The Seller will then have * to lock-in
                price of Pt for the Buyer for the following calendar year. Any
                price modification shall be determined and agreed upon by * of
                each year and will be effective with shipments delivered
                beginning on * of the following year. The cost of Platinum used
                as the basis is per the pricing table under paragraph 13.

<PAGE>

            (b) In the case of Titanium, the price of any Product is subject to
                upward or downward modification from time to time due to an
                increase or decrease, as the case may be, in the cost of
                Titanium to Seller, to the extent Seller's price change is based
                on an increase or decrease in the cost of Titanium in an amount
                greater than * of the current cost of Titanium contained in any
                Product. The reference price of Titanium will be based upon the
                *. Any price modification shall be determined and agreed upon in
                * of each year and will be effective with shipments delivered
                beginning 01 January of the following year.

            If Seller determines that a price increase or decrease under this
            Article is required or permissible, Seller shall deliver written
            notice to Buyer setting forth the basis for such determination.

            In the event that purchase volumes deviate from forecasted volumes
            by more than * annually, Seller reserves the right to appropriately
            re-price product as a result of these varying impacts. Specifically,
            product pricing, impacted (increased or decreased) by raw material
            costs for purchased volumes exceeding * of the forecasted annual
            volume, will be re-priced to accommodate these relevant raw material
            changes. Further, should purchased volumes not meet the * level of
            the forecasted annual volume, Buyer agrees to pay the actual
            carrying costs associated with the inventoried products, WIP, and
            raw materials that remain un-purchased."

            3.2 Prior to * of each contract year, Buyer shall provide Seller
            with written certification of Buyer's compliance with the minimum
            purchase requirements set forth in Section 6 of the Agreement."

     19.  Buyer and Seller agree, within * of the effective date of this
          Amendment, to issue a joint press release stating that Greatbatch is
          the exclusive supplier of battery technology and the critical supplier
          of filtered feedthrough technology to St. Jude Medical. The press
          release will also state that the Parties have entered into an amended
          Supply Agreement through 2013, which provides for year over year price
          reductions on both technologies through collaboration on manufacturing
          and supply chain efficiencies. Additionally, the parties are committed
          to jointly develop new technologies, including the introduction of a
          new low cost power solution, for future market requirements with an
          implementation date of no later than 2009.

     20.  Except as provided herein, all of the terms and conditions of the
          Agreement shall remain unchanged and in full force and effect.

<PAGE>

The parties have caused this Amendment No. 5 to be executed by their respective
duly authorized representatives as of the Effective Date.

BUYER:                     SELLER:                     SELLER:

PACESETTER, INC.           GREATBATCH, INC.            GREATBATCH, INC.

By: /s/ Jeff Chateau       By: /s/ Susan Campbell      By: /s/ Mauricio Arellano
    --------------------       ---------------------       ---------------------
                                  Vice President              Vice President
Title: VP Supply Lines     Title: Medical Power        Title: Medical Solutions
       -----------------          ------------------          ------------------

Date: 2-26-07              Date: 2-28-07               Date: 2-28-07
      ------------------         ------------------          -------------------Exhibit 10.5

                AMENDMENT NO. 6 TO SUPPLIER PARTNERING AGREEMENT
                            BETWEEN GREATBATCH, INC.
               AND PACESETTER, INC. (d/b/a ST. JUDE MEDICAL CRMD)

This Amendment (the "Amendment No. 6") to the Supplier Partnering Agreement is
between Greatbatch, Inc., a Delaware corporation ("Seller"), and Pacesetter,
Inc. d/b/a "St. Jude Medical CRMD", a California corporation ("Buyer" or "St.
Jude"). Seller and Buyer are collectively referred to herein as the "Parties".
This Amendment No.6 is entered into effective as of 1 March 2007 (the "Effective
Date").

BACKGROUND

     A.   Buyer and Seller entered into a Supplier Partnering Agreement (the
          "Agreement") effective 01 January 2004.

     B.   Buyer, Seller and, where applicable, the other Parties have entered
          into Amendment Nos. 1-5 to the Agreement.

     C.   The Parties agree to continued good faith negotiations towards
          expanding the business relationship between the Buyer and Seller.

     D.   The Parties to the Agreement desire to further amend the Agreement as
          provided for herein.

AGREEMENT

In consideration of the foregoing Recitals and the Parties' mutual covenants
contained herein, the Parties hereby agree as follows:

     1.   As of Effective Date, Subpart 1.7 of Exhibit A of the Agreement is
          hereby amended to include Coated Components and Molded Header
          Assemblies as Products.

     2.   As of Effective Date, Section 1 of Exhibit A of the Agreement is
          hereby amended to add new Subparts which read in their entirety as
          follows:

            "1.10 "Coated Components" means any substrate material that is
            covered, in whole or in part, by a material intended specifically to
            alter the therapy delivery characteristics of the substrate
            material, including where the context requires all such Products
            manufactured by Seller and sold to Buyer under this Agreement.

            1.11 "Molded Header Assemblies" means a single piece molded device
            header assembly, including where the contract requires all such
            Products manufactured by Seller and sold to Buyer under this
            Agreement."

<PAGE>

     3.   As of the Effective Date, Exhibit F of Amendment No. 3 of the
          Agreement is hereby amended to add a new Subpart A4 which reads in its
          entirety as follows:

              "A.4.Buyer agrees to provide Seller future opportunities to expand
              sales of Molded Header Assemblies to Buyer."

     4.   As of the Effective Date, Exhibit D of the Agreement is hereby amended
          to add a new Subpart A4 which reads in its entirety as follows:

              "A.4.Buyer agrees to provide Seller future opportunities to expand
              sales of Coated Components to Buyer."

     5.   As of Effective Date, Section 7 of Exhibit A of the Agreement is
          hereby amended to include Subsection 7.4 which reads in its entirety
          as follows:

              "7.4 During the Term of the Agreement, Buyer and Seller agree to
              explore the opportunity for Seller to perform assembly services
              for the Buyer."

     6.   As of Effective Date, Section 8 of the Agreement is hereby amended to
          read in its entirety as follows:

              "8. Communication: Seller and Buyer will conduct a semi annual
              review to facilitate the purposes of this agreement. Buyer will
              also provide Seller with quarterly updates of planned production
              rates for the Products to assist the Seller in capacity planning.
              The Buyer's Commodity Managers and the Seller's Customer Program
              Managers shall facilitate all communications."

     7.   As of Effective Date, Section 2.7 of Exhibit A of the Agreement is
          amended in its entirety to change the term "Batteries" to "Products."

     8.   As of the Effective Date, Section 3 of Exhibit A of the Agreement is
          hereby amended to add a new Subpart 4 which reads in its entirety as
          follows:

              "3.4 Buyer hereby agrees to indemnify, defend and hold Seller, its
              Affiliates and each of their officers, directors and employees
              harmless from any damage, costs or liabilities, including, without
              limitation, any reasonable costs or legal fees thereby incurred by
              Seller and payable to third parties (collectively, "damages")
              arising out of any claim to the extent that such claim arises from
              or results out of the marketing, distribution or sale of medical
              devices by Buyer which contain a component ("Third Party
              Component") supplied by a Non-Seller Supplier identified in
              Exhibit H of this Amendment that was procured by Seller under
              directions from Buyer. Such indemnification shall include, without
              limitation, damages resulting from:

<PAGE>

                (a) Personal injury or death resulting from the use of a medical
                    device containing a Third Party Component;

                (b) Alleged defects of the medical devices containing a Third
                    Party Component;

                (c) Any breach by Buyer of its covenants contained in any
                    existing agreements between Buyer and Seller; and

                (d) Any Third Party Component as supplied to Seller from
                    Non-Seller Supplier under direction from Buyer which
                    infringes any patent or other intellectual property rights
                    of any other party specifically relating to such Third Party
                    Component, or the process of its manufacture by a Non-Seller
                    Supplier or its use by Buyer or affiliates,

              except to the extent the damage is caused by Seller's gross
              negligence, willful misconduct or breach of any existing agreement
              between Buyer and Seller.

              Seller is responsible to complete incoming inspection
              requirements.

              Buyer's obligation under this section is subject to the following
              conditions: Seller shall give Buyer prompt written notification of
              any such claim so as not to prejudice Seller's performance, and
              shall cooperate in the defense of such claim at Buyer's expense.
              Further, Seller agrees that Buyer shall have sole control over the
              defense or settlement of any such claim, action or proceedings,
              including, but not limited to, the right to select defense
              counsel, and that neither Seller nor its officers, directors,
              employees, agents, or contractors shall enter into any agreement
              with respect to such claim, action or proceeding for which
              indemnification is or may be sought without receipt of Buyer's
              prior written approval. Seller shall have the right to retain
              separate counsel at its sole expense. Such separate counsel shall
              function solely to advise Seller and shall have no right to
              control the defense of any lawsuit or to effect any settlement,
              other than at Seller's sole expense."

<PAGE>

The Parties have caused this Amendment No. 6 to be executed by their respective
duly authorized representatives as of the Effective Date.

BUYER:                     SELLER:                     SELLER:

PACESETTER, INC.           GREATBATCH, INC.            GREATBATCH, INC.

By: /s/ Jeff Chateau       By: /s/ Susan Campbell      By: /s/ Mauricio Arellano
    --------------------       ---------------------       ---------------------
                                  Vice President              Vice President
Title: VP Supply Lines     Title: Medical Power        Title: Medical Solutions
       -----------------          ------------------          ------------------

Date: 2-26-07              Date: 2-28-07               Date: 2-28-07
      ------------------         ------------------          -------------------

<PAGE>

                                    Exhibit H
                    LIST OF THIRD PARTY NON-SELLER SUPPLIERS

     A. BalSeal Engineering Co., Inc. - Springs

     B. Rolenn Manufacturing - Seals

     C. Hirose Electric Group - Connectors

     D. UDT Sensors, Inc. - Diodes

     E. Noveon - Tecothane

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