Surgical stapling instrument having a clearanced opening

CAFC
  • US 9,844,379 B2
  • Filed: 03/08/2016
  • Issued: 12/19/2017
  • Est. Priority Date: 07/28/2004
  • Status: Active Grant
First Claim
Patent Images

1. A stapling assembly, comprising:

  • a frame;

    a distal end;

    a first jaw comprising a channel;

    a channel retainer, wherein said channel is slidably attachable to said channel retainer;

    a second jaw extending from said frame;

    a plurality of staples;

    a staple firing member comprising a first cam configured to engage said first jaw and a second cam configured to engage said second jaw when said staple firing member is advanced from an unadvanced position toward said distal end, wherein one of said first jaw and said second jaw comprises a clearanced opening configured to permit said firing member to be unengaged with one of said first jaw and said second jaw when said firing member is in said unadvanced position; and

    a lockout configured to block the advancement of said staple firing member when said channel is not attached to said channel retainer.

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