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Interlocking buttress material retention system

  • US 8,308,046 B2
  • Filed: 11/30/2011
  • Issued: 11/13/2012
  • Est. Priority Date: 06/18/2007
  • Status: Active Grant
First Claim
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1. A surgical stapler comprising:

  • a first jaw having a staple cartridge and a second jaw including an anvil, at least one of the first jaw and the second jaw defining a tissue facing surface defining a at least one projection extending above the tissue facing surface of at least one of the first jaw and the second jaw such that each projection defines a tissue contacting surface; and

    a staple line buttress material releasably disposed against the tissue facing surface, the staple line buttress material defining a recess therein for receiving the at least one projection,wherein the staple line buttress material is positioned between the tissue facing surface and a plane defined by the tissue contacting surface,wherein the at least one of the first jaw and the second jaw includes a longitudinally extending knife slot, the at least one projection being separated by the knife slot.

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