Methods for forming an implantable layer onto a staple cartridge are disclosed.

A compressible adjunct is used with a surgical instrument including a staple cartridge deck. The compressible adjunct includes a first biocompatible material, a second biocompatible material with a lower melting temperature than the first biocompatible material, and a body including a face positionable against a length of the staple cartridge deck. The face includes a plurality of attachment regions spaced apart from one another, wherein the plurality of attachment regions include the second biocompatible material, wherein the face is selectively attachable to the staple cartridge deck at said plurality of attachment regions, and a plurality of non-attachment regions extending between the plurality of attachment regions, wherein the second biocompatible material is selectively disposed outside said non-attachment regions.

A staple cartridge assembly is disclosed comprising, one, a plurality of staples removably stored within a surgical staple cartridge and, two, an implantable adjunct. The implantable adjunct is configured to be progressively released from the surgical staple cartridge during a firing progression of a firing assembly configured to travel through the surgical staple cartridge.

A surgical instrument includes a jaw member having a slot, a first outer surface on a first side of the slot, and a second outer surface on a second side of the slot opposite the first side. The surgical instrument includes an adjunct assembly having an attachment layer including a first section on the first side of the slot attached to the first outer surface, a second section on the second side of the slot attached to the second outer surface, and an intermediary section extending between the first section and the second section, the intermediary section at least partially bridging the slot. The adjunct assembly further includes a first compressible adjunct on the first side and a second compressible adjunct on the second side, the compressible adjuncts spaced apart, the first section attached to the first compressible adjunct, and the second section attached to the second compressible adjunct.

A compressible adjunct for use with a surgical instrument including a staple cartridge includes a biocompatible layer and a plurality of biocompatible looping members. The biocompatible looping members protrude from the biocompatible layer. Each biocompatible looping member includes a first end portion attached to the biocompatible layer, a second end portion attached to the biocompatible layer, and an intermediate curved portion extending between the first end portion and the second end portion, wherein the intermediate curved portion is further away from the biocompatible layer than the first end portion and the second end portion.

A compressible adjunct for use with a surgical instrument including a staple cartridge includes a first biocompatible layer, a second biocompatible layer spaced apart from the first biocompatible layer, and a plurality of supporting pillars extending between the first biocompatible layer and the second biocompatible layer.

A staple cartridge assembly for use with a surgical stapling instrument includes a staple cartridge including a plurality of staples and a cartridge deck. The staple cartridge assembly also includes a compressible adjunct positionable against the cartridge deck, wherein the staples are deployable into tissue captured against the compressible adjunct, and wherein the compressible adjunct comprises a first biocompatible layer comprising a first portion, a second biocompatible layer comprising a second portion, and crossed spacer fibers extending between the first portion and the second portion.

A staple cartridge assembly comprising an implantable layer is disclosed. The implantable layer comprises a top portion, a bottom portion, and structural walls interwoven between the top portion and the bottom portion.

A compressible adjunct has a first portion, a second portion, and a middle portion. The middle portion is disposed between the first portion and the second portion. The middle portion comprises a first pillar, a second pillar, and an interconnecting member. The first pillar and the second pillar extend substantially between the first portion and the second portion. The interconnecting member is configured to engage at least the first pillar and the second pillar. When the compressible adjunct is compressed by a force, the first pillar is configured to deflect a first deflection and the second pillar is configured to deflect a second deflection. The first deflection differs from the second deflection.

Processes for making fibrous structures and more particularly processes for making fibrous structures comprising filaments are provided.