Surgery – Instruments – Electrical application
Patent
1995-09-15
1999-07-06
Bahr, Jennifer
Surgery
Instruments
Electrical application
606 41, 606 31, A61B 1738, A61B 1700
Patent
active
059191872
ABSTRACT:
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. The heating coils are permanently connected to the delivery wires. 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.
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Guglielmi Guido
Ji Cheng
Bahr Jennifer
Dawes Daniel L.
Huang Stephen
The Regents of the University of California
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