A surgical stapling device includes a tissue contacting surface and a buttressattachment feature. The buttress attachment feature permits selectively securinga surgical buttress to the tissue contacting surface, which may be disposed ona cartridge assembly or an anvil plate of the surgical stapling device. The buttressattachment feature may include a shape memory alloy, such as a nickel titaniumalloy, that is responsive to a temperature change to allow the buttress attachmentfeature fo move between a first position where a free end of the buttress attachmentfeature is substantially spaced from the tissue contacting surface, and secondposition where the surgical attachment feature is approximated with respectto the tissue contacting surface.
