Motorized surgical instrument

  • US 10,485,537 B2
  • Filed: 09/23/2016
  • Issued: 11/26/2019
  • Est. Priority Date: 09/23/2008
  • Status: Active Grant
First Claim
Patent Images

1. A surgical instrument, comprising:

  • an end effector;

    a firing member configured to move longitudinally within the end effector;

    a drive system coupled to the firing member;

    an electric motor configured to drive the drive system;

    a battery; and

    a control circuit coupled to the electric motor, wherein the control circuit comprises a first switching device and a second switching device, and wherein the control circuit is configured to;

    deliver a maximum voltage from the battery to the electric motor to apply a first torque to the drive system; and

    selectively deliver an increased voltage to the electric motor to apply a second torque to the drive system, wherein the second torque is greater than the first torque, and wherein the increased voltage is greater than the maximum voltage from the battery.

View all claims

    Thank you for your feedback