A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 7/12 (2006.01) A61B 17/12 (2006.01) A61B 18/08 (2006.01) A61M 25/09 (2006.01)
Patent
CA 2179863
A thrombus is generated in an aneurysm, arteriovenous malformation or fistula by means of a catheter having an insulated heating coil coupled to an insulated delivery wire. In one embodiment, two delivery wires are coupled to heating coils to provide a closed circuit. The heating coils may be in the form of a double helix or a single helix in combination with a straight heating coil. Theheating coils may be permanently connected to the delivery wires or may be electrolytically or mechanically detached therefrom. Alternatively, a single insulated heating coil may be attached to a single insulated delivery wire with a uninsulated coil attached to the tip of the insulated heating coil. The electrical circuit is then made through the heating coil and non- insulated electrode coil into the vascular system and to a body electrode. A catheter may also be used for heating blood within the vascular system which is directly flowed into a tumoral mass for the purposes of thermal treatment of cancer.
Guglielmi Guido
Ji Cheng
Fetherstonhaugh & Co.
The Regents Of The University Of California
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