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La placian electrode

  • US 6,922,579 B2
  • Filed: 12/12/2002
  • Issued: 07/26/2005
  • Est. Priority Date: 12/12/2002
  • Status: Expired due to Term
First Claim
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1. A medical probe, comprising:

  • an elongated tubular member having a distal end and a proximal end, wherein the elongated tubular member comprises a catheter body;

    a first ring electrode located at the distal end of the elongated tubular member, the first ring electrode having an opening;

    a second ring electrode located at least partially within the opening of the first ring electrode and fixedly coupled to the distal end of the elongated tubular member; and

    an insulator located between the first and the second ring electrodes and substantially around the second ring electrode;

    wherein a distal end of the first ring electrode and a distal end of the second ring electrode form at least a portion of a planar surface.

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