Nerve locator and stimulator
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United States of America Patent
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Oct 16, 1990
Grant Date -
N/A
app pub date -
Jul 19, 1989
filing date -
Jul 19, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A nerve locator and stimulator which can be used, for example, for human surgery which allows a probe having an insulated tip with an extendible contact which can be used to contact surgical tissue so as to locate a nerve. A second contact is provided with an atraumatic grounding pad and the two contacts are connected to a handpiece which provides an AC energizing current which can be adjusted to fast and low frequency rates. High and low currents can be selected for muscle or nerve simulation and the use of short duration square wave pulses and constant current prevents nerve electrical trauma and neuropraxia or iatrogenic nerve fatigue.
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