Electrosurgical instrument with axially-spaced electrodes
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United States of America Patent
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Jun 15, 2004
Issued Date -
N/A
app pub date -
Mar 30, 2000
filing date -
May 10, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A bi-polar electrocautery needle comprising an inner electrode on outer electrode and recoverable insulating-locking member for insulting the electrode from one another and locking them into relative position to one another. And the method of making the bi-polar electrocautery needle in accordance with this invention, the steps including: expanding recoverable dielectric material over an inner electrode; and recovering the material between the electrodes for insulating and locking the electrodes into relative position with one another.
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