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Multipolarity epicardial radiofrequency ablation

  • US 9,044,245 B2
  • Filed: 01/05/2011
  • Issued: 06/02/2015
  • Est. Priority Date: 01/05/2011
  • Status: Active Grant
First Claim
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1. A method of treating a tissue region, comprising:

  • positioning a first, second, and third electrode in proximity to the tissue region, the second and third electrodes positioned on opposite sides of and adjacent to the first electrode;

    ablating a first portion of the tissue region by conducting an electrical current between the first electrode and a ground electrode spaced from the tissue region; and

    then ablating a second portion of the tissue region by conducting an electrical current between the second electrode and the third electrode around the first portion of the tissue region.

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