Motorized surgical instrument

  • US 10,420,549 B2
  • Filed: 09/23/2016
  • Issued: 09/24/2019
  • Est. Priority Date: 09/23/2008
  • Status: Active Grant
First Claim
Patent Images

1. A surgical instrument, comprising:

  • a handle;

    an electric motor positioned within the handle;

    a power source comprising a rechargeable single cell battery electrically connectable to the electric motor, wherein the power source is positioned within the handle and is configured to supply a first maximum voltage of the power source to the electric motor;

    a shaft assembly coupled to the handle;

    an end effector coupled to the shaft assembly; and

    a circuit positioned within the handle, wherein the circuit comprises a first switching device and a second switching device, and wherein the circuit is configured to increase a magnitude of the first maximum voltage supplied by the power source to a higher voltage and apply the higher voltage to the electric motor to drive at least one of the following;

    a clamping system coupled to the electric motor; and

    a firing system coupled to the electric motor.

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