Radio frequency transmyocardial revascularization channel formation
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United States of America Patent
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Nov 21, 2000
Grant Date -
N/A
app pub date -
Aug 25, 1997
filing date -
Aug 25, 1997
priority date (Note) -
Expired
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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.
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