Tissue thickness compensator for a surgical stapler

  • US 9,801,634 B2
  • Filed: 10/20/2014
  • Issued: 10/31/2017
  • Est. Priority Date: 09/30/2010
  • Status: Active Grant
First Claim
Patent Images

1. A staple cartridge, comprising:

  • a cartridge body, wherein a plurality of staple cavities are defined in the cartridge body;

    a plurality of staples removably positioned in the staple cavities;

    a firing element configured to traverse at least a portion of the cartridge body during a firing stroke;

    a compressible portion releasably secured relative to the cartridge body; and

    a plurality of frangible retainers configured to secure the compressible portion relative to the cartridge body, wherein each frangible retainer extends from a discrete location along the compressible portion to the cartridge body, wherein the frangible retainers are configured to progressively release the compressible portion from the cartridge body as the firing element traverses the cartridge body, wherein a first portion of the compressible portion is released from the cartridge body during an initial portion of the firing stroke, and wherein a second portion of the compressible portion is released from the cartridge body during a subsequent portion of the firing stroke.

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