Patent ID: 9566107
Date: 2017-02-14
CPC Classifications: A61B

Claim:
1. A method of ablating a tissue site having a depth, 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 extending from respective sides of the tissue site towards a center of said tissue site, said first stage being conducted in accordance with at least one of a selected power and time duration parameter such that upon termination of said first stage ablation, said pair of opposing first stage ablation regions together extend less than said depth of said tissue 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 in the center of said tissue site different than said first stage ablation regions and that is intermediate said first stage ablation regions to complete the ablation through the entire depth of the tissue site.