Shaft assembly arrangements for surgical instruments

  • US 10,413,294 B2
  • Filed: 09/19/2016
  • Issued: 09/17/2019
  • Est. Priority Date: 06/28/2012
  • Status: Active Grant
First Claim
Patent Images

1. A stapling assembly, comprising:

  • a first source of first rotary drive motions;

    a second source of second rotary drive motions;

    a proximal shaft assembly, comprising;

    a first rotary actuator configured to receive said first rotary drive motions;

    a second rotary actuator configured to receive said second rotary drive motions;

    a first linear actuator operably interfacing with said second rotary actuator, wherein said first linear actuator is configured to convert said second rotary drive motions to linear drive motions; and

    a distal coupler, wherein said distal coupler comprises a proximal articulation ball portion; and

    a distal shaft assembly, comprising;

    a third rotary actuator;

    a second linear actuator;

    an articulation joint;

    a proximal coupler configured to be releasably coupled to said distal coupler so as to operably couple said first rotary actuator to said third rotary actuator and said first linear actuator to said second linear actuator, wherein said proximal coupler comprises a distal articulation ball portion, and wherein said proximal articulation ball portion and said distal articulation ball portion form an internal articulation ball when said distal shaft assembly and said proximal shaft assembly are coupled to each other; and

    an end effector attached to said distal shaft assembly by way of said articulation joint, wherein said second linear actuator is configured to articulate said end effector about said articulation joint, and wherein said end effector comprises;

    a first jaw;

    a second jaw, wherein one of said first and second jaws is configured to operably support a surgical staple cartridge therein; and

    a firing member operably interfacing with said third rotary actuator so as to axially move said firing member through said end effector upon rotary actuation of said third rotary actuator, said firing member configured to move one of said first and second jaws relative to the other one of said first and second jaws between an open position and closed positions and eject staples from said surgical staple cartridge.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×