US Patent 10028743 Staple cartridge assembly comprising an implantable layer

An end effector for stapling tissue is disclosed. The end effector comprises a cartridge body comprising a deck, staples removably stored in the cartridge body, and an anvil configured to deform the staples. The end effector further comprises an implantable layer positioned intermediate the deck and the anvil. The layer comprises a tissue-facing surface, raised portions, and grooves defined intermediate the raised portions, wherein the raised portions apply localized compression to the tissue, and wherein the layer is releasably attached to the cartridge body.