Stapling system comprising a lockout

  • US 9,839,429 B2
  • Filed: 09/09/2015
  • Issued: 12/12/2017
  • Est. Priority Date: 02/15/2008
  • Status: Active Grant
First Claim
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1. A stapling assembly system for use with a surgical stapling instrument, said stapling assembly system comprising:

  • a shaft portion comprising a proximal end operably engageable with the surgical stapling instrument;

    a first replaceable cartridge jaw, comprising;

    a first top portion configured to support tissue;

    first staple cavities defined in said first top portion;

    a first bottom portion;

    first staples removably stored in said first staple cavities;

    a first sled movable between an unfired position and a fired position;

    first staple drivers configured to eject said first staples from said first staple cavities; and

    a first retainer extending around said first bottom portion configured to prevent said first staple drivers from falling out of said first replaceable cartridge jaw through said first bottom portion;

    a second replaceable cartridge jaw, comprising;

    a second top portion configured to support tissue;

    second staple cavities defined in said second top portion;

    a second bottom portion;

    second staples removably stored in said second staple cavities;

    a second sled movable between an unfired position and a fired position;

    second staple drivers configured to eject said second staples from said second staple cavities; and

    a second retainer extending around said second bottom portion configured to prevent said second staple drivers from falling out of said second replaceable cartridge jaw through said second bottom portion;

    a second jaw comprising an anvil configured to deform said first staples and said second staples;

    a firing member configured to engage said first staple drivers during a first firing stroke of said firing member and said second staple drivers during a second firing stroke of said firing member; and

    a lockout configured to selectively prevent said firing member from being advanced through a said firing stroke.

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