Stapling system incorporating a firing lockout

  • US 10,383,634 B2
  • Filed: 09/20/2016
  • Issued: 08/20/2019
  • Est. Priority Date: 07/28/2004
  • Status: Active Grant
First Claim
Patent Images

1. A stapling system, comprising:

  • an anvil comprising an anvil ledge;

    a channel comprising a channel ledge;

    a firing bar comprising a first projection configured to engage said anvil ledge and a second projection configured to engage said channel ledge;

    a replaceable unfired staple cartridge, comprising;

    a proximal end;

    a distal end positioned opposite said proximal end;

    staples;

    a vertical slot extending longitudinally from said proximal end toward said distal end, wherein said vertical slot is configured to receive said firing bar during a staple firing stroke; and

    a sled spanning across said vertical slot; and

    a locking member movable vertically and spring-biased into a locked configuration which inhibits said firing bar from being advanced through said staple firing stroke when a previously-fired staple cartridge is assembled to said stapling system instead of said replaceable unfired staple cartridge;

    wherein said sled comprises a central portion configured to slide within said vertical slot during said staple firing stroke, and wherein said central portion is configured to unlock said locking member.

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