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IMPEDANCE RESPONSIVE ABLATION RF DRIVING FOR MODERATING RETURN ELECTRODE TEMPERATURE

  • US 20090187177A1
  • Filed: 01/21/2008
  • Published: 07/23/2009
  • Est. Priority Date: 01/28/2008
  • Status: Abandoned Application
First Claim
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1. A method for ablating a tissue mass associated with a human or animal patient being treated, comprising:

  • (a) positioning an ablating electrode in a tissue mass to be ablated;

    (b) positioning a plurality of return electrodes on the patient;

    (c) applying electrical energy to said return electrodes and said ablating electrode;

    (d) measuring the skin to electrode coupling impedance of said return electrodes to generate an impedance measurement signal; and

    (e) varying the electrical energy applied between said return electrodes and said ablating electrode in response to the impedance measurement signal.

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