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Heat exchange catheter with discrete heat exchange elements

  • US 6,264,679 B1
  • Filed: 08/20/1999
  • Issued: 07/24/2001
  • Est. Priority Date: 08/20/1999
  • Status: Expired due to Term
First Claim
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1. A heat exchange catheter comprising:

  • a longitudinal catheter shaft with a proximal end and a distal end;

    a heat exchange region comprising a plurality of heat exchange elements, each of said heat exchange elements having a length and opposed ends and each of said heat exchange elements being disposed such that, when the heat exchange region of the catheter is positioned in a body lumen or body cavity that contains body fluid, the body fluid may circumferentially surround at least a portion of each heat exchange element, further including an insulating region on the shaft located proximally with respect to the heat exchange region and wherein the insulating region comprises an inflatable balloon surrounding the shaft.

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