Ultra-sharp tungsten needle for electrosurgical knife
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United States of America Patent
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May 22, 1990
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N/A
app pub date -
Nov 14, 1988
filing date -
Nov 14, 1988
priority date (Note) -
Expired
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Abstract
A method and apparatus for performing electrosurgery with an ultra-sharp electrode composed of a refractory alloy, said electrode having a blunt end and a tip end, and a method for forming the ultra-sharp electrode by rotating about its axis a vertically held cylindrical rod composed of a refractory alloy and repeatedly withdrawing and replacing the rod into a pool of molten oxidizing agent.
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