US Patent 10265074 Implantable layers for surgical stapling devices

A surgical instrument comprising a loading unit and an end effector is disclosed. The end effector comprises a first jaw, a second jaw, an anvil, a staple cartridge, a firing member, a first adjunct, a second adjunct, a first pair of restraint members, and a second pair of restraint members. The staple cartridge comprises a staple cartridge deck, staple cavities, staples, and staple drivers. The staple cartridge deck comprises a stepped profile. The first adjunct comprises a strain relief portion. The second adjunct comprises a strain relief portion configured to extend over the staple cartridge deck and a stepped profile that is fitted to the stepped profile of the staple cartridge deck. The first pair of restraint members are configured to releasably attach the first adjunct to the anvil. The second pair of restraint members are configured to releasably attach the second adjunct to the staple cartridge.