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Electrosurgical system for multi-frequency interrogation of parasitic parameters of an electrosurgical instrument

  • US 10,188,448 B2
  • Filed: 10/07/2015
  • Issued: 01/29/2019
  • Est. Priority Date: 11/21/2014
  • Status: Active Grant
First Claim
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1. An electrosurgical system comprising:

  • an electrosurgical generator including;

    an output stage, having a non-resonant inverter, configured to generate electrosurgical energy at a plurality of radio frequencies;

    a plurality of sensors configured to sense a voltage waveform and a current waveform of the electrosurgical energy; and

    a controller coupled to the output stage and the plurality of sensors; and

    an instrument coupled to the electrosurgical generator and configured to supply the electrosurgical energy to tissue,wherein the controller is further configured to calculate at least one parasitic parameter based on the electrosurgical energy at the plurality of radio frequencies and control the output stage to adjust an amplitude of the electrosurgical energy based on the at least one parasitic parameter.

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