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TISSUE THICKNESS COMPENSATOR FOR A SURGICAL STAPLER COMPRISING AN ADJUSTABLE ANVIL

  • US 20120080489A1
  • Filed: 04/29/2011
  • Published: 04/05/2012
  • Est. Priority Date: 09/30/2010
  • Status: Active Grant
First Claim
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1. A surgical stapler, comprising:

  • a staple cartridge, comprising;

    a cartridge body comprising a plurality of staple cavities; and

    a plurality of staples positioned within said staple cavities;

    an anvil assembly, comprising;

    an anvil frame;

    an anvil comprising a positioning surface and at least one staple forming surface, wherein said anvil is movably retained to said anvil frame; and

    an adjustment member movably positionable intermediate said anvil frame and said anvil, wherein said adjustment member comprises a first step comprising a first height and a second step comprising a second height, wherein said second height is different than said first height, and wherein said adjustment member is movable between a first position and a second position to selectively position one of said first step and said second step intermediate said anvil frame and said positioning surface,wherein said anvil frame comprises a first guide portion, wherein said anvil comprises a second guide portion operably engaged with said first guide portion, and wherein said first guide portion and said second guide portion are configured to permit relative sliding movement between said anvil and said anvil frame; and

    a tissue thickness compensator, wherein said tissue thickness compensator is configured to be captured within said staples and assume different compressed heights within different said staples.

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