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Low power tissue ablation system

  • US 8,617,156 B2
  • Filed: 12/19/2008
  • Issued: 12/31/2013
  • Est. Priority Date: 07/11/2005
  • Status: Active Grant
First Claim
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1. An ablation catheter, comprising:

  • an elongate tube defining a lumen and having a distal end adapted for insertion into a patient;

    at least one resilient arm having a constrained configuration inside the lumen and an expanded configuration outside the lumen;

    at least one electrode disposed on the at least one resilient arm, the electrode comprising a tissue contact portion adapted to deliver energy to tissue and a circulating blood contact portion; and

    at least two projecting members extending from the circulating blood contact portion to provide rapid and efficient cooling of the electrode.

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