Motor-powered articulatable surgical instruments

  • US 9,924,942 B2
  • Filed: 08/23/2013
  • Issued: 03/27/2018
  • Est. Priority Date: 08/23/2013
  • Status: Active Grant
First Claim
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1. A surgical instrument comprising:

  • an elongated shaft assembly defining a longitudinal tool axis;

    a surgical end effector operably coupled to the elongated shaft assembly for selective articulation of the surgical end effector about an articulation axis which is transverse to the longitudinal tool axis, the surgical end effector being configured to perform at least one surgical procedure in response to firing motions applied thereto, wherein the surgical end effector comprises a first jaw and a second jaw, wherein the first jaw is pivotable relative to the second jaw about a pivot axis, and wherein the pivot axis and the articulation axis are not the same;

    an articulation system operably interfacing with the elongated shaft assembly for applying articulation motions to the surgical end effector;

    a firing member assembly operably interfacing with the elongated shaft assembly to apply the firing motions to the surgical end effector;

    a motor comprising a housing, wherein said housing is immovably fixed to said elongated shaft assembly such that said housing does not move relative to said elongated shaft assembly, and wherein said motor is configured to selectively generate rotary actuation motions; and

    a drive coupler assembly interfacing with the motor and the articulation system such that when the drive coupler assembly is in a first configuration, operation of the motor will result in rotary actuation motions being applied to the articulation system resulting in articulation of the surgical end effector about the articulation axis, and when the drive coupler assembly is in a second configuration, operation of the motor will result in rotary actuation motions being applied to the firing member assembly causing the firing member assembly to apply at least one of the firing motions to the surgical end effector.

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