SURGICAL STAPLER WITH ROLLING ANVIL

摘要

An apparatus comprises a shaft and an end effector. The end effector is positioned at the distal end of the shaft and is operable to form a fastener assembly to secure tissue. The end effector includes first and second fastener assembly forming features. The first fastener assembly forming feature is rotatable relative to the shaft. The fastener assembly is formed by first and second fastener assembly members. The first fastener assembly member comprises a buttress strip received by the first fastener assembly forming feature. The second fastener assembly member comprises either a wire with protruding portions or a fastener strip with integral protruding fasteners. The buttress strip receives the protruding portions or protruding fasteners to secure tissue between the buttress strip and the wire or fastener strip. The end effector may transect layers of tissue and fasten the layers of tissue together on each side of the transection.

主权项

1. An apparatus, comprising:
(a) a shaft, wherein the shaft has a distal end; (b) an end effector, wherein the end effector is disposed at the distal end of the shaft, wherein the end effector defines a gap configured to receive tissue, wherein the end effector comprises:
(i) a first fastener assembly forming feature positioned at a first side of the gap, wherein the first fastener assembly forming feature is rotatable relative to the shaft, and(ii) a second fastener assembly forming feature positioned at a second side of the gap; (c) a first fastener assembly member, wherein the first fastener assembly forming feature is configured to receive the first fastener assembly member and position the first fastener assembly member at the first side of the gap, wherein the first fastener assembly member is configured to translate distally through the shaft during rotation of the first fastener assembly forming feature; and (d) a second fastener assembly member, wherein the second fastener assembly forming feature is configured to receive the second fastener assembly member and position the second fastener assembly member at the second side of the gap, wherein the second fastener assembly member is configured to translate distally through the shaft during rotation of the first fastener assembly forming feature; wherein the first and second fastener assembly members are configured to join together and thereby form a fastener assembly.