Surgical instrument assembly comprising a flexible articulation system

  • US 9,987,000 B2
  • Filed: 12/18/2014
  • Issued: 06/05/2018
  • Est. Priority Date: 12/18/2014
  • Status: Active Grant
First Claim
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1. A surgical instrument, comprising:

  • a shaft comprising a shaft frame;

    an end effector, comprising;

    an end effector frame; and

    a jaw movable relative to said end effector frame;

    an articulation joint, comprising;

    an articulation frame, comprising;

    a proximal articulation end; and

    a distal articulation end;

    a first articulation joint connecting said proximal articulation end to said shaft frame; and

    a second articulation joint connecting said distal articulation end to said end effector frame;

    a firing system movable relative to said shaft frame, said articulation frame, and said end effector frame, wherein said firing system comprises a cutting member movable relative to said end effector frame; and

    an articulation wire fixedly attached to said end effector frame, wherein said articulation wire is structured to assume a collapsed configuration when subjected to a threshold compressive load and is configured to transmit an articulation force to said end effector frame when subjected to the threshold compressive load.

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