Surgical stapling device with rotary driven firing member

  • US 10,383,630 B2
  • Filed: 07/29/2016
  • Issued: 08/20/2019
  • Est. Priority Date: 06/28/2012
  • Status: Active Grant
First Claim
Patent Images

1. A surgical stapling assembly, comprising:

  • a shaft assembly;

    an articulation joint;

    an end effector coupled to said shaft assembly by said articulation joint for selective articulation relative thereto, said end effector comprising;

    an anvil;

    a staple cartridge comprising a plurality of staples, wherein said staples are movable between unfired positions and fired positions during a staple firing stroke;

    a first jaw; and

    a second jaw moveable relative to said first jaw; and

    a firing system, comprising;

    a rotary drive system configured to generate rotary drive motions;

    an end effector drive screw configured to receive said rotary drive motions from said rotary drive system; and

    a firing member operably coupled with said end effector drive screw, wherein, upon receiving rotary drive motions from said end effector drive screw, said firing member is actuated to perform said staple firing stroke, wherein said firing member comprises;

    a body portion;

    a cutting member;

    a first camming portion engageable with said first jaw; and

    a second camming portion engageable with said second jaw,wherein said body portion of said firing member comprises an internal threaded section threadably engaged with said end effector drive screw, andwherein said internal threaded section comprises a plurality of rods forming threads of said internal threaded section.

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