System for reducing drag on the movement of an electrode in a resectoscope
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United States of America Patent
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Sep 11, 1990
Grant Date -
N/A
app pub date -
Jun 2, 1988
filing date -
Jun 2, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system for reducing drag in a resectoscope working element. A hole is provided at a proximal end of a substantially enclosed electrode sheath for exiting fluids and substantially preventing pressure from being generated in the sheath. A working element has a guide block with a guide bar channel having a first cross-sectional shape and a guide bar with a second cross-sectional shape such that there are spaces between the guide bar and the guide bar channel and the bearing surfaces therebetween are relatively small.
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