Systems and methods for electrosurgical removal of calcified dep

Details Systems and methods for electrosurgical removal of calcified dep Systems and methods for electrosurgical removal of calcified dep

1998-05-22

2000-04-11

Peffley, Michael

Surgery

Miscellaneous

Methods

606 41, A61B 1900

Patent

active

060477008

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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