Releasable buttress retention on a surgical stapler

摘要

A surgical stapling apparatus including a releasable buttress material includes a cartridge assembly, an anvil assembly, and a buttress material. The cartridge assembly includes a plurality of staples, a tissue contacting surface defining staple retaining slots, and a swaged outer edge. The anvil assembly includes a tissue contacting surface defining staple pockets for forming staples expelled from the staple retaining slots of the cartridge assembly. The buttress material has an outer portion that is retaining within the swaged outer edge of the cartridge assembly.

主权项

1. A surgical stapling apparatus including a releasable buttress material, the surgical stapling apparatus comprising:
a cartridge assembly including a plurality of staples and a tissue contacting surface defining staple retaining slots, the cartridge assembly including a swaged outer edge having a rim overlapping the tissue contacting surface of the cartridge assembly in spaced relation therewith and defining an inner pocket between the tissue contacting surface and the rim, the rim including an annular array of teeth extending radially inward of the swaged outer edge; an anvil assembly including a tissue contacting surface defining staple pockets for forming staples expelled from the staple retaining slots of the cartridge assembly; and a buttress material including an outer portion retained within the swaged outer edge of the cartridge assembly.