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Motor control and feedback in powered surgical devices

  • US 9,468,454 B2
  • Filed: 01/28/2014
  • Issued: 10/18/2016
  • Est. Priority Date: 01/28/2014
  • Status: Active Grant
First Claim
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1. A surgical device, comprising:

  • a proximal handle portion that includes a motor;

    a distal end effector coupled to the handle portion;

    a cutting element configured to cut a tissue engaged by the end effector, the motor being configured to supply power that moves the cutting element through the tissue; and

    a motor control mechanism configured to cause the amount of the power to dynamically change in response to a change in applied pressure of a manual user input when the cutting element is moving, and the motor control mechanism being configured to cause the amount of the power to remain constant in response to an applied pressure of the manual user input being continually applied at a steady rate when the manual user input and the cutting element are moving.

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