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Devices and techniques for cutting and coagulating tissue

  • US 9,089,360 B2
  • Filed: 10/01/2010
  • Issued: 07/28/2015
  • Est. Priority Date: 08/06/2008
  • Status: Active Grant
First Claim
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1. A method of driving an end effector coupled to an ultrasonic drive system of a surgical instrument, the method comprising:

  • generating by a generator at least one electrical signal;

    monitoring the at least one electrical signal against a first set of logic conditions;

    triggering a first response of the generator when the first set of logic conditions is met;

    triggering a pulsing response when the first set of logic conditions is met; and

    wherein the pulsing response comprises;

    generating by the generator a first pulse amplitude for a first pulse time, where the first pulse time is the period over which the first pulse amplitude is driven by the generator; and

    generating by the generator a second pulse amplitude for a second pulse time, where the second pulse time is the period over which the second pulse amplitude is driven by the generator.

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