BIOLOGICALLY DERIVED EXTRACELLULAR MATRIX WITH INFUSED VISCOUS ABSORBABLE COPOLYMER FOR RELEASABLY ATTACHING A STAPLE BUTTRESS TO A SURGICAL STAPLER

摘要

A surgical stapler end effector comprises a staple cartridge, an anvil, and a buttress assembly. The staple cartridge comprises a plurality of staples and a deck. The staple cartridge is operable to drive the staples through the deck. The anvil is movable from an open position toward the staple cartridge to reach a closed position. The anvil includes an underside having staple forming surface configured to receive staples driven through the deck. The buttress assembly comprises a buttress body and an adhesive material. The buttress body defines a plurality of cells. The adhesive material comprises a polymer. The polymer is bioabsorbable. A first portion of the adhesive material is located within cells of the plurality of cells. A second portion of the adhesive material is located on the buttress body outside the plurality of cells.

主权项

1. A surgical stapler end effector, the end effector comprising:
(a) a staple cartridge, wherein the staple cartridge comprises:
(i) a plurality of staples, and(ii) a deck, wherein the staple cartridge is operable to drive the staples through the deck; (b) an anvil, wherein the anvil is movable from an open position toward the staple cartridge to reach a closed position, wherein the anvil includes an underside having staple forming surface configured to receive staples driven through the deck; and (c) a buttress assembly, wherein the buttress assembly comprises:
(i) a buttress body, wherein the buttress body defines a plurality of cells, and(ii) an adhesive material, wherein the adhesive material is configured to removably secure the buttress body to the deck of the staple cartridge or the underside of the anvil, wherein the adhesive material comprises a polymer, wherein the polymer is bioabsorbable, wherein a first portion of the adhesive material is located within cells of the plurality of cells, wherein a second portion of the adhesive material is located on the buttress body outside the plurality of cells.