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Methods of using shape memory alloys for buttress attachment

  • US 8,028,883 B2
  • Filed: 10/25/2007
  • Issued: 10/04/2011
  • Est. Priority Date: 10/26/2006
  • Status: Active Grant
First Claim
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1. A surgical stapling device comprising:

  • a cartridge assembly;

    an anvil assembly operatively associated with the cartridge assembly and in juxtaposed relation thereto;

    a first tissue contacting surface defined by at least one of the cartridge assembly and the anvil plate; and

    a buttress attachment feature for selectively securing a surgical buttress adjacent the first tissue contacting surface, the buttress attachment feature responsive to a temperature change such that the buttress attachment feature is movable between a first position in which, at a first temperature, a free end of the buttress attachment feature is substantially spaced from the first tissue contacting surface, and a second position in which, at a second temperature, the free end is relatively approximated to the first tissue contacting surface to secure the surgical buttress to the first tissue contacting surface, and wherein the buttress attachment feature includes a plurality of fingers disposed along the first tissue contacting surface.

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