Electrosurgical systems and methods with temperature control
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United States of America Patent
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May 6, 2003
Grant Date -
N/A
app pub date -
Feb 20, 1998
filing date -
Jan 7, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Vascular catheter comprises a catheter body having a proximal end, a distal end, and an electrode array disposed near the distal end. The electrode array is located proximally of a common electrode, typically located on a movable guidewire, and includes a plurality of isolated electrode terminals. By positioning the common electrode within a stenotic region and contacting a leading surface of the stenotic region with the electrode array, the stenotic material can be heated by applying a high frequency voltage between the electrode array and the common electrode. The stenotic region can thus be recannalized by advancing the distal end of the catheter body through the heated stenotic material.
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