Surgical instrument system for evaluating tissue impedance

  • US 10,238,385 B2
  • Filed: 03/25/2015
  • Issued: 03/26/2019
  • Est. Priority Date: 02/14/2008
  • Status: Active Grant
First Claim
Patent Images

1. A surgical instrument system, comprising:

  • a proximal end;

    a distal end;

    a first jaw;

    a second jaw, wherein said first jaw is movable relative to said second jaw to capture tissue between said first jaw and said second jaw;

    a sensor system configured to sense the impedance of the tissue at a plurality of discrete locations;

    a staple cartridge comprising staple cavities;

    staples removably stored in said staple cavities;

    an anvil configured to deform said staples;

    a firing system configured to move said staples toward said anvil;

    an electric motor configured to move said firing system toward said distal end during a firing stroke; and

    a control system configured to;

    evaluate the impedance of the tissue at said discrete locations; and

    control the speed of said electric motor during said firing stroke as said firing system moves relative to said discrete locations.

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