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Ablation catheter and method for isolating a pulmonary vein

  • US 6,949,097 B2
  • Filed: 04/16/2003
  • Issued: 09/27/2005
  • Est. Priority Date: 04/05/1999
  • Status: Expired due to Fees
First Claim
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1. A catheter assembly comprising:

  • a catheter body including a proximal portion, an intermediate portion extending from the proximal portion, the intermediate portion defining a longitudinal axis, and a distal portion extending from the intermediate portion, the distal portion forming a loop including one or more loop segments formed around a central loop axis, the on or more loop segments including at least one ablation electrode coupled thereto and the central loop axis substantially parallel with the longitudinal axis; and

    a locating device including a distal tip extending from the distal portion of the catheter body, the distal tip substantially parallel with the central loop axis;

    wherein the at least one ablation electrode is adapted to create a lesion, the lesion electrically isolating a vessel from a chamber for treatment of a cardiac arrhythmia.

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