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METHOD AND APPARATUS FOR RADIOFREQUENCY ABLATION WITH INCREASED DEPTH AND/OR DECREASED VOLUME OF ABLATED TISSUE

  • US 20100274238A1
  • Filed: 04/22/2009
  • Published: 10/28/2010
  • Est. Priority Date: 04/22/2009
  • Status: Active Grant
First Claim
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1. A method of ablating a tissue site, comprising the steps of:

  • during a first stage, conducting bipolar ablation between a first pair of electrodes in an opposing arrangement on opposing sides of the tissue site so as to form a pair of opposing first stage ablation regions in the site; and

    during a second stage, conducting bipolar ablation between a second pair of electrodes in a diametrical arrangement with respect to the first stage ablation regions to form a second stage ablation region intermediate said first stage ablation regions.

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