End effector comprising an adjunct

  • US 10,390,823 B2
  • Filed: 02/08/2013
  • Issued: 08/27/2019
  • Est. Priority Date: 02/15/2008
  • Status: Active Grant
First Claim
Patent Images

1. An end effector, comprising:

  • a staple cartridge, comprising;

    a cartridge body, comprising;

    a deck;

    a cartridge longitudinal slot configured to receive a cutting member;

    a first set of staple cavities defined in said deck; and

    a second set of staple cavities defined in said deck, wherein said first set is different than said second set, and wherein said first set of staple cavities is positioned adjacent to said cartridge longitudinal slot;

    a plurality of staples removably stored within said cartridge body, wherein said staples are ejectable from said cartridge body during a staple firing stroke;

    longitudinal rows of staple drivers, wherein each said longitudinal row of staple drivers comprises a proximal end and a distal end, wherein said staple drivers are positioned at different heights relative to said deck prior to said staple firing stroke, and wherein said staple drivers are liftable toward said deck to sequentially deform said staples to different formed heights; and

    an implantable layer assembly releasably attached to said cartridge body, comprising;

    a first layer positioned over said first set of staple cavities; and

    a second layer positioned over said second set of staple cavities,wherein said first layer partially overlaps said second layer, and wherein said first layer covers more of said deck than said second layer; and

    an anvil, comprising;

    a plurality of staple-forming pockets comprising a first set of staple-forming pockets and a second set of staple-forming pockets; and

    an anvil longitudinal slot comprising a T-shaped opening configured to receive said cutting member, wherein said T-shaped opening extends behind said first set of staple-forming pockets.

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