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Method and apparatus for endovascular thermal thrombosis and thermal cancer treatment

  • US 5,919,187 A
  • Filed: 09/15/1995
  • Issued: 07/06/1999
  • Est. Priority Date: 03/13/1990
  • Status: Expired due to Term
First Claim
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1. An improvement in an endovascular device for use within a vascular system comprising:

  • at least one elongate, flexible, fully insulated and substantially unsupported delivery wire having a first resistance; and

    at least one elongate, flexible, fully insulated, substantially unsupported, and longitudinally resilient heating coil having a second resistance coupled to said delivery wire, said first resistance being less than said second resistance, wherein said delivery wire and heating coil are both electrically insulated to permit endovascular disposition of said delivery wire and heating coil into said vascular system to deliver heat to blood within said vascular system at a predetermined location, substantially all of said heat being generated by electrical current flowing within said heating coil rather than within said delivery wire,whereby endovascular thermal treatment is provided within said vascular system.

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