Disposable loading unit for use with a surgical instrument

  • US 9,913,647 B2
  • Filed: 03/30/2015
  • Issued: 03/13/2018
  • Est. Priority Date: 02/15/2008
  • Status: Active Grant
First Claim
Patent Images

1. A disposable loading unit for use with a surgical stapling instrument, said disposable loading unit comprising:

  • a frame including a proximal connector attachable to the surgical stapling instrument;

    a cutting member slidably positioned in said frame;

    an anvil;

    a cartridge channel attachable to and detachable from said frame;

    a cartridge position stop;

    a plurality of replaceable staple cartridges, wherein each said replaceable staple cartridge is configured to be removably positioned in said cartridge channel, and wherein each said replaceable staple cartridge comprises;

    a cartridge body;

    a deck comprising a first deck surface and a second deck surface, wherein said first deck surface is positioned above said second deck surface, and wherein said cartridge body is positionable by said cartridge position stop to properly align said first deck surface and said second deck surface relative to said anvil;

    a first longitudinal row of staple cavities defined in said first deck surface;

    a second longitudinal row of staple cavities defined in said second deck surface;

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

    staple drivers configured to fire said staples toward said anvil; and

    a sled configured to drive said staple drivers toward said anvil; and

    a lockout that prevents a first replaceable staple cartridge of said plurality of replaceable staple cartridges from being fired after said first replaceable staple cartridge has been at least partially fired, wherein the surgical stapling instrument and said disposable loading unit are configured to deploy staples from another replaceable staple cartridge of said plurality of replaceable staple cartridges with which said first replaceable staple cartridge is replaced.

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