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Radiofrequency ablation with independently controllable ground pad conductors

  • US 7,736,357 B2
  • Filed: 08/29/2005
  • Issued: 06/15/2010
  • Est. Priority Date: 05/11/2004
  • Status: Active Grant
First Claim
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1. A radio frequency ablation system comprising:

  • at least one ablation electrode for insertion into a patient at an ablation site;

    at least two ground pad conductors for topical application to a portion of the patient'"'"'s skin; and

    a power supply independently applying a radio frequency voltage between the at least one ablation electrode and the at least two ground pad conductors to ablate tissue at the ablation site;

    wherein the power supply switches an application of the voltage first between the at least one ablation electrode and a first ground pad conductor, and second between the at least one ablation electrode and a second ground pad conductor according to a predetermined time schedule.

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