Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical energy applicator
Patent
1996-05-28
1998-05-12
Jaworski, Francis
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical energy applicator
128642, A61N 144
Patent
active
057499144
ABSTRACT:
Obstructive material is removed from a stent by modified electrosurgical ablation. A modified electrosurgical device having at least one electrode is positioned within the stent, and current is supplied to the electrode. The electrode is prevented from physically contacting the stent, such as by being situated within a groove on the device. The stent may, but need not be, grounded to the current source. The device may be properly positioned within the stent by using ultrasound transducers, fiber optics, or other means. Additionally, the device may be positioned by including at least two electrodes, and measuring the impedance therebetween, as the impedance will be relatively low when both electrodes are within a conductive stent. Therapeutic fluid may be supplied through the catheter, and energy may be supplied to increase the activity of the fluid.
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Advanced Coronary Intervention
Jaworski Francis
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