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Multiple antenna ablation apparatus and method

  • US 5,951,547 A
  • Filed: 11/03/1997
  • Issued: 09/14/1999
  • Est. Priority Date: 08/15/1995
  • Status: Expired due to Term
First Claim
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1. A treatment apparatus, comprising:

  • an introducer including a lumen and a tissue piercing distal end;

    an energy delivery device configured to be coupled to an energy source, the energy delivery device including at least a first, and a second RF electrode each with a tissue piercing distal end and at least partially positionable in the lumen in a compacted state as the introducer is advanced through tissue, the first and second RF electrodes being deployable from the lumen with curvature in an expanded state and including a deployed perpendicular section that is perpendicular to a longitudinal axis of the introducer, the deployed perpendicular section being positioned between a first and a second curved section of the electrode;

    an RF electrode advancement member coupled to the first and second RF electrodes that simultaneously advances the first and second RF electrodes out of the introducer distal end, the RF electrode advancement member; and

    at least one cable coupling the first secondary antenna to the energy source.

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