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Thermal dilatation catheter and method

  • US 5,178,620 A
  • Filed: 02/22/1991
  • Issued: 01/12/1993
  • Est. Priority Date: 06/10/1988
  • Status: Expired due to Term
First Claim
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1. A heatable dilatation catheter comprisinga catheter member;

  • dilation means affixed to the catheter member;

    a guidewire extending through the catheter member;

    a first electrode affixed to the guidewire;

    a second electrode affixed to the catheter member, the second electrode electrically insulated from and spaced by a distance of at least one catheter diameter from the first electrode; and

    means for selectively communicating an electric current to the first and the second electrodes to thereby cause heating of a resistive mass therebetween.

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