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METHOD AND APPARATUS FOR DETERMINING PARAMETERS OF LINEAR MOTION IN A SURGICAL INSTRUMENT

  • US 20110139851A1
  • Filed: 02/24/2011
  • Published: 06/16/2011
  • Est. Priority Date: 10/05/2007
  • Status: Active Grant
First Claim
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1. A surgical instrument, comprising:

  • a housing;

    an elongated shaft extending distally from the housing and defining a first longitudinal axis;

    a firing rod disposed within the elongated shaft;

    a drive mechanism disposed at least partially within the housing, the drive mechanism in mechanical cooperation with the firing rod;

    a sensor that senses a parameter of light reflected from the surface of the firing rod; and

    a measurement unit that determines a parameter of the motion of the firing rod based on the sensed parameter of the light reflected from the surface of the firing rod.

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