Surgical instrument

  • US 10,653,417 B2
  • Filed: 03/25/2016
  • Issued: 05/19/2020
  • Est. Priority Date: 01/31/2006
  • Status: Active Grant
First Claim
Patent Images

1. A surgical instrument, comprising:

  • an end effector;

    a firing member configured to move through at least a portion of the end effector to eject staples from a staple cartridge supported by the end effector;

    a drive system connected to the firing member;

    a variable speed electric motor connected to the drive system;

    a firing trigger configured to actuate a firing motion when the firing trigger is drawn toward a handle of the surgical instrument; and

    a pivot pin coupled to the firing trigger, wherein;

    the firing trigger is mechanically uncoupled from the drive system; and

    a positive rotational speed of the variable speed electric motor varies with an amount of force exerted on the pivot pin by the firing trigger.

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