Catheter with flexible cooled electrode
AssigneeFogazzi di Venturelli Andrea &C. S.n.c.
InventorAndrea Venturelli
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Abstract
A catheter for the treatment of tumors and other affections using hyperthermia induced by radio frequency includes a tubular body with or without an anchoring balloon at its distal end. An active electrode is positioned around the body and connected to a radio frequency generator. At least one thermistor needle measures the temperature around the electrode. The active electrode is flexible and connectable to a supply source of a fluid for cooling the electrode. It includes a helical conduit, which can be metal, conductive ceramic or graphite.
Claims10
A catheter for the treatment of tumors and other affections using hyperthermia induced by radio frequency comprising:
- a tubular body equipped with a metal point at a distal end thereof;
- an active electrode placed around said body, attached to said metal point, and connected to a radio frequency generator;
- and
- at least one thermistor needle to measure a temperature around said electrode;
- wherein said active electrode is flexible and connectable to a cooling fluid supply source for cooling said electrode, wherein
- said electrode is formed of two concentric and attached cylindrical sleeves, wherein a surface of one of said sleeves is helically grooved and forms with a surface of another of said sleeves at least one helical passage connectable to two tubes for delivery and return of the electrode cooling fluid.
Dependencies are inferred from the claim text.