Radio frequency transmyocardial revascularization channel formation
AssigneeAdvanced Coronary Intervention, Inc.
InventorsMichael C. McGarry, W. Michael Janssen
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Abstract
A method and device for transmyocardial revascularization using RF energy. A signal probe having a signal electrode is inserted into a myocardium. A return probe having a return electrode is placed on or within the myocardium. RF energy is supplied to the signal electrode, and forms a conductive path to the return electrode. At least one fissure within the myocardium is formed along the conductive path, allowing blood to perfuse within the fissure and revascularize the myocardium. A number of probe and electrode configurations are provided, including the use of multiple probes and electrodes, hollow probes to provide a coring effect, and pressurized fluid-supplying probes.
Claims9
A device for revascularizing myocardial body tissue, comprising:
- a signal probe having a distal end insertable within the tissue, the signal probe having a signal electrode situated thereon;
- the signal probe being at least partially hollow and having an opening at a distal end so that an interior surface is provided, whereby insertion of the probe into myocardial tissue cores out a portion thereof;
- and
- a power supply for supplying radio frequency energy to the signal electrode and thereby to a return electrode, whereby one or more fissures are formed within the tissue generally along an electrical conduction path from the signal electrode;
- wherein the distal end of said signal probe is sharpened.
Dependencies are inferred from the claim text.