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Multiple antenna ablation apparatus and method with cooling element

  • US 6,059,780 A
  • Filed: 11/04/1997
  • Issued: 05/09/2000
  • Est. Priority Date: 08/15/1995
  • Status: Expired due to Term
First Claim
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1. An ablation apparatus, comprising:

  • a handpiece;

    an electrode coupled to the handpiece, the electrode including a distal end sufficiently sharp to pierce tissue, a lumen, a cooling medium inlet conduit and a cooling medium exit conduit both extending at least partially through the electrode lumen, the electrode further including a port isolated from a cooling medium flowing in the inlet and outlet conduits, wherein the electrode is configured to be coupled to an energy source;

    a probe at least partially positionable in the electrode lumen, wherein the probe includes a distal portion configured to be advanced out of the port with at least one radius of curvature; and

    a thermal sensor coupled to the probe.

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