Surgical cutting and fastening instrument including a sensing system

  • US 10,470,763 B2
  • Filed: 03/25/2015
  • Issued: 11/12/2019
  • Est. Priority Date: 02/14/2008
  • Status: Active Grant
First Claim
Patent Images

1. A surgical instrument system, comprising:

  • an end effector, comprising;

    a proximal portion;

    a distal end;

    a first jaw; and

    a second jaw movable relative to the first jaw to clamp tissue between the first jaw and the second jaw;

    a staple cartridge comprising a longitudinal channel;

    a cutting member configured to move within the longitudinal channel from the proximal portion toward the distal end;

    an electric motor couplable to the cutting member and configured to drive the cutting member within the longitudinal channel;

    a sensing system comprising a plurality of sensing circuits, wherein each sensing circuit comprises first and second sensing elements positioned adjacent the longitudinal channel; and

    a control system electrically couplable to the electric motor and the sensing system, wherein the control system is configured to;

    determine impedances of the tissue at multiple locations along a staple line as the cutting member progresses distally within the longitudinal channel; and

    automatically control a speed of the electric motor.

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