Firing member displacement system for a stapling instrument

  • US 8,833,632 B2
  • Filed: 09/06/2011
  • Issued: 09/16/2014
  • Est. Priority Date: 09/06/2011
  • Status: Active Grant
First Claim
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1. A surgical stapling instrument, comprising:

  • a shaft, wherein said shaft comprises a displacing cam;

    a plurality of staple cartridges positioned within said shaft, wherein each said staple cartridge comprises;

    a cartridge body comprising a plurality of apertures; and

    a plurality of staples each comprising at least one staple leg positioned in a said aperture, wherein said staple legs are slidable within said apertures;

    a trigger;

    a firing member;

    a first jaw comprising a channel configured to receive a said staple cartridge, wherein said first jaw comprises a plurality of staple drivers positioned within said channel, and wherein said firing member is configured to engage said staple drivers and move said staples between a first position and a second position;

    a second jaw comprising an anvil, wherein said staple legs are configured to contact said anvil when said staples are driven into said second position;

    a cartridge driver configured to sequentially advance said staple cartridges into said channel; and

    wherein said firing member is operably coupled with said trigger such that a firing motion can be transferred from said trigger to said firing member to move said firing member along a firing path, wherein said firing path comprises;

    a proximal position in which said firing member is in contact with said displacing cam and is displaced in a transverse direction with respect to said firing path, wherein a said staple cartridge can slide past said firing member when said firing member is displaced in said transverse direction;

    a plurality of firing positions in which said firing member is in contact with said staple drivers; and

    a distal position.

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