Exhibit 10.34
 
 Plan: FY10 Executive Incentive Plan
Division: Corporate
 I.
    
    ObjectiveThoratecs Executive Incentive Plan, hereinafter referred to as EIP is intended to reward
executive personnel who significantly impact and influence Thoratecs productivity in
proportion to their accomplishment of specified objectives.The purpose of the plan is to ensure maximum return to Thoratec by encouraging greater
initiative, resourcefulness, teamwork and efficiency on the part of senior management whose
performance and responsibilities directly affect company profits.Awarding of the bonus will be based on accomplishing a set of annual personal objectives,
determined by the Chief Executive Officer (CEO) and the Board of Directors, typically at
the beginning of the year. Bonus determinations and payouts will take place after the
financial statements have been prepared for the fiscal year.II.
    
    Determination Of The FundThe availability of, and participants in, the fund will be set by the CEO and approved by
the Board of Directors as part of the annual budgeting process.III.
    
    Effective DateThe effective date of this program is January 3, 2010, the beginning of the plan year, and
will continue in effect until January 1, 2011, or until terminated or amended by the Board
of Directors. This plan supersedes all prior EIP plans.IV.
    
    EligibilityParticipation in the plan is limited to Officers and others in comparable levels of
responsibility who have a direct and significant influence on Thoratecs growth and
profitability. Employees must be regular and not eligible for any other Thoratec commission,
bonus or incentive plan in order to be eligible to participate in the EIP.Participating employees will be determined at the beginning of the fiscal year, or at such
time during the Fiscal Year that an employee achieves an eligible position. Employees will
be notified of their eligibility and plan objectives, as soon as possible after the
determination by the CEO or Board of Directors.Individuals must be employed by Thoratec at the close of the fiscal year and the date of
payment in order to be eligible for an award under the EIP except participants who are
involuntarily terminated due to a divestiture, plant closing, reorganization or reduction in
force during the plan year may receive an award on the prorated basis described in Section
VIII, Plan Administration, Prorated Awards, [subject to approval by the CEO]. These monies
will be paid out at the usual and customary time of payment of all bonuses. For purposes of
this plan, termination shall mean the day the employee leaves the job, which may not
necessarily be the last day on the payroll.V.
    
    Incentive ObjectivesThe award received under this plan will have an 80% financial and 20% personal objective
mix.Financial Objectives (make up 80% of total bonus payout) The financial component will have
two equally weighted objectives as follows:
 1.
    
    Achieve the Corporate Business revenue goal for 2010 as described in Section
VII below. (Weighted at 50% of financial component, equivalent to 40% of overall bonus
payout.)2.
    
    Achieve the Corporate Business non-GAAP income before tax goal for 2010 as
described in Section VII below. (Weighted at 50% of financial component, equivalent to
40% of overall bonus payout.)
 1




---



##### 



Personal Objectives (make up 20% of total bonus payout) Each personal objective will be
weighted according to its importance. The weight will determine the percentage of the bonus
awarded for completion of that objective. (See Section VI below.) As a guideline,
employees should set 3-5 personal objectives.VI.
    
    Bonus Opportunity and AwardThe award opportunity will be expressed as a percentage of the participants base salary at
the close of the fiscal year. The award will be approved by the Board of Directors or the
CEO, and will be consistent with the participants peers within the company.The amount that a participant actually receives for the full fiscal year will be based upon
the extent to which the set objectives have been achieved. The participant will receive a
percentage of the total award opportunity corresponding to the percentage of each objective
accomplished and the weight assigned to the objective. Evaluations of performance against
management and business plan objectives are made for the full year prior to fiscal year-end
payment.VII.
    
    Performance Goal and PayoutIn addition to your personal objectives, everyone will have two company-oriented financial
objectives that will be achieved according to the following guidelines:
 (1)Revenue
    
    Non-GAAP Income Before TaxGoal
    
    Award
    
    Goal
    
    AwardThreshold
    
    = to, or >
    
    $*
    
    
    50
    %
    
    $*
    
    
    50
    %Target
    
    = to, or >
    
    $*
    
    
    100
    %
    
    $*
    
    
    100
    %
 
 Note: If revenue is less than $* (90% of target), no payment is earned for that objective.
If consolidated NGIBT earnings is less than $* (85% of target), no payment is earned for
that objective. If actual results fall between threshold and target, interpolate between
them to get actual payout percentage. This percentage will be multiplied times the weight
given the objective in your individual plan to determine the achievement. Quarterly revenue
and NGIBT earnings information may be released at the end of each quarter, after earnings
have been disclosed to the public.(1)NGIBT earnings is defined as consolidated GAAP net income before taxes excluding, as
applicable, amortization of intangibles, in-process R&D, impairment of intangibles, certain
litigation, restructuring and CEO transition expenses and other unusual or non-recurring
costs, and also excluding share-based compensation expense under SFAS No. 123R and changes
in the value of the make-whole provision of our convertible notes and special incentive
awards.VIII.
    
    Over-Achievement Award Opportunity/Performance AcceleratorIn addition, each EIP participant will receive a 3% increase for every 1% increase in
consolidated NGIBT earnings over the target level. For example, if you earned 85% of your
total objectives for the year, and the company made $* of NGIBT earnings (a 10%
over-achievement), with a base salary of $50,000 and a bonus target of 20%, your award would
be calculated as follows:
 Annualized base salary ($50,000) x target bonus (20%) x
(80% financial and 5% individual accomplishment for 85% total) x 1.30 = $11,050
 The maximum amount of bonus paid will never exceed 200% of payout target. For example, if
the payout target was 20%, (20% x $50,000 = $10,000), the maximum amount paid would be
$20,000 (2 x $10,000).IX.
    
    Plan AdministrationProrated Awards.Individuals who are promoted to eligible positions during the plan
year, new hires into eligible positions and eligible employees who are either on
leave or on active written warning for part of the year may be awarded partial bonuses
under this program, based on the accomplished objectives and their respective weights,
subject to the approval of the CEO.
 
 *
    
    Amounts to be determined by the Compensation and Option
Committee of the Board of Directors. 2




---



##### 



Transfers.In the event of transfer of an eligible participant to another position or
department, the transferring manager will evaluate EIP results for prorated award (see
Prorated Awards above) at the end of the year, and forward to the Human Resources Department. The hiring manager will be responsible for setting the key
business plan objectives for the balance of the year, if applicable, and forwarding to Human
Resources for approval. Awards based on these objectives will be prorated (see Prorated
Awards above) as well, for end of the year payment.Authority.The Board of Directors shall have the full power and authority to construe,
interpret and administer the plan. All decisions, actions or interpretations of the Board
of Directors shall be final and conclusive and binding on all parties. This program shall
be administered by the Human Resources Department.X.
    
    General Provisions
 
    
    The Executive Incentive Plan for 2010 may be reviewed and revised at the Boards
discretion.
    
    Nothing in this plan shall be construed to limit in any way the right of Thoratec
Corporation to terminate an employees employment at any time, with or without cause or
notice, nor shall it be evidence of any agreement or understanding, expressed or
implied, that Thoratec or any of its subsidiaries will employ an employee in any
particular position, for any particular period of time, ensure participation in any
incentive programs, or the granting of awards from such programs as they may from time
to time exist or be constituted. Thoratec reserves the right to discontinue or alter
the plan at its sole discretion at any time with or without notice.
 3