Systems and methods of displaying a knife position for a surgical instrument

  • US 10,796,471 B2
  • Filed: 09/29/2017
  • Issued: 10/06/2020
  • Est. Priority Date: 09/29/2017
  • Status: Active Grant
First Claim
Patent Images

1. A surgical instrument comprising:

  • a displacement member movable between a first position and a second position;

    a sensor configured to detect a position of the displacement member and provide a signal indicative thereof;

    an electronic display screen configured to display a graphical user interface;

    a memory configured to store a home position and a terminal position of the displacement member; and

    a control circuit coupled to the electronic display screen and the sensor, wherein the control circuit is configured to communicate with the memory, and wherein the control circuit is further configured to;

    determine whether the surgical instrument is in a firing state or a non-firing state;

    in the non-firing state, cause the graphical user interface to display a first image;

    in the firing state;

    receive the signal from the sensor;

    retrieve the home position and the terminal position from the memory;

    cause the graphical user interface to display a second image, the second image comprising a graphical component indicating an absolute position of the displacement member;

    repeatedly determine, based on a comparison of the signal received from the sensor to the home position retrieved from the memory, an absolute position of the displacement member as the displacement member moves from the first position to the second position;

    repeatedly update the graphical component according to the determined absolute position of the displacement member as the displacement member moves from the first position to the second position;

    cause the graphical user interface to display a cut line of the displacement member;

    repeatedly determine, based on a comparison of the signal received from the sensor to the terminal position retrieved from the memory, an absolute position of the displacement member as the displacement member moves from the second position to the first position;

    repeatedly update the graphical component according to the determined absolute position of the displacement member as the displacement member moves from the second position to the first position; and

    cause the graphical user interface to display instructions associated with unclamping the surgical instrument as the displacement member reaches the first position.

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