Surgical instrument with variable duration trigger arrangement

  • US 10,881,396 B2
  • Filed: 06/20/2017
  • Issued: 01/05/2021
  • Est. Priority Date: 06/20/2017
  • Status: Active Grant
First Claim
Patent Images

1. A surgical instrument, comprising:

  • an end effector comprising a staple cartridge housing a plurality of staples;

    a displacement member movable between an unfired position and a fired position, wherein a translation of the displacement member toward the fired position causes the plurality of staples to be deployed from the staple cartridge into tissue grasped by the end effector;

    a motor coupled to displacement member, the motor operable to translate the displacement member between the unfired position and the fired position;

    a control circuit coupled to the motor;

    a parameter sensor coupled to the control circuit; and

    a position sensor coupled to the control circuit, wherein the control circuit is configured to;

    receive a parameter output of the parameter sensor indicative of a force applied to translate the displacement member;

    determine a duration during which the parameter output is maintained at or above a predetermined fault threshold as the displacement member moves toward the fired position;

    receive a position output of the position sensor indicative of at least one position of the displacement member during the duration; and

    effect a motor control action based on the duration and the at least one position.

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