Systems and methods for electrosurgical removal of calcified deposits
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United States of America Patent
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Apr 11, 2000
Grant Date -
N/A
app pub date -
May 22, 1998
filing date -
Mar 30, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides systems and methods for selectively applying electrical energy to a target location within a patient's heart to remove calcified deposits and fibroid material from valve leaflets. The method of the present invention comprises positioning an electrosurgical probe or catheter adjacent the target site so that one or more electrode terminal(s) are brought into at least partial contact or close proximity with the target heart valve. High frequency voltage is then applied between the electrode terminal(s) and one or more return electrode(s) to volumetrically remove or ablate at least a portion of the calcified material while minimizing damage to the heart valve and substantially preserving the elastic fiber layer of the valve leaflets.
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