End effector comprising a distal tissue abutment member

摘要

A fastener cartridge can comprise a cartridge body comprising fastener cavities, fasteners at least partially stored within the cartridge body, and a layer positioned over the cartridge body. The cartridge body can include a proximal end and a distal end. Similarly, the layer can include a proximal end and a distal end. The distal end of the layer can extend distally with respect to the distal end of the cartridge body. Furthermore, the layer can include a distal portion which extends distally with respect to the fastener cavities defined in the cartridge body. This distal portion can be positioned against the tissue being fastened and can flexibly support the tissue after the layer has been implanted against the tissue. The layer may include a proximal portion which extends proximally with respect to the fastener cavities which can flexibly support the tissue after the layer has been implanted.

主权项

1. A staple cartridge, comprising:
a cartridge body comprising a deck; a plurality of staples removably stored within said cartridge body; and an implantable layer assembly positioned over said deck, wherein said implantable layer assembly comprises:
a compensation layer configured to be at least partially captured within said staples when said staples are moved from an unfired position to a fired position, wherein said compensation layer comprises a distal compensation end and a first proximal-to-distal length; andan overlap layer extending from and overlapping at least a portion of said compensation layer, wherein said overlap layer comprises a distal overlap end and a second proximal-to-distal length, wherein said second proximal-to-distal length is longer than said first proximal-to-distal length, wherein said distal overlap end extends distally beyond said distal compensation end, and wherein said overlap layer is configured to overlap an adjacent implanted implantable layer.