Implantable layers for surgical stapling devices

  • US 10,265,074 B2
  • Filed: 03/23/2016
  • Issued: 04/23/2019
  • Est. Priority Date: 09/30/2010
  • Status: Active Grant
First Claim
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1. A surgical instrument comprising a loading unit and an end effector extending from said loading unit, wherein said end effector comprises:

  • a first jaw;

    a second jaw moveable relative to said first jaw between an open position and a closed position;

    an anvil;

    a staple cartridge, comprising;

    a staple cartridge deck, wherein said staple cartridge deck comprises a stepped profile;

    a first row of staple cavities;

    a second row of staple cavities;

    a plurality of staples removably stored in said first row of staple cavities and said second row of staple cavities;

    a first row of staple drivers configured to move from an unfired position to a fired position to deploy said plurality of staples in said first row of staple cavities; and

    a second row of staple drivers configured to move from an unfired position to a fired position to deploy said plurality of staples in said second row of staple cavities, wherein said unfired position of said first row of staple drivers is different than said unfired position of said second row of staple drivers;

    a firing member configured to move within said staple cartridge, wherein said firing member is configured to move said second jaw toward said closed position;

    a first adjunct, comprising;

    a proximal end portion;

    a distal end portion; and

    a strain relief portion;

    a second adjunct, comprising;

    a proximal end portion;

    a distal end portion;

    a strain relief portion configured to extend over said staple cartridge deck; and

    a stepped profile that is fitted to said stepped profile of said staple cartridge deck;

    a first pair of restraint members, wherein one of said first pair of restraint members is positioned on said proximal end portion of said first adjunct and the other of said first pair of restraint members is positioned on said distal end portion of said first adjunct, and wherein said first pair of restraint members are configured to releasably attach said first adjunct to said anvil; and

    a second pair of restraint members, wherein one of said second pair of restraint members is positioned on said proximal end portion of said second adjunct and the other of said second pair of restraint members is positioned on said distal end portion of said second adjunct, and wherein said second pair of restraint members are configured to releasably attach said second adjunct to said staple cartridge.

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