Patent ID: 8453652

Claim:
A cartridge assembly configured for selective, removable connection to a cartridge receiving section of a surgical stapling device, the cartridge assembly comprising: a tissue contacting surface defining: a plurality of staple retaining pockets formed therein, wherein the plurality of staple retaining pockets are arranged in parallel, longitudinally extending rows; and a longitudinally extending knife slot; and at least one buttress attachment feature for selectively securing a surgical buttress adjacent the tissue contacting surface, the buttress attachment feature movable between a first position in which a free end of the buttress attachment feature permits placement of a surgical buttress against the tissue contacting surface, and a second position in which the free end of the buttress attachment feature retains the surgical buttress against the tissue contacting surface, wherein the buttress attachment feature is responsive to a temperature change such that the buttress attachment feature is in the first portion when the buttress attachment features is at a first temperature and in the second position when the buttress attachment feature is at a second temperature, the second temperature being greater than the first temperature, wherein the buttress attachment feature comprises a shape memory alloy that is responsive to the temperature change.