Medical handpiece with automatic power switching means
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United States of America Patent
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Oct 3, 2017
Issued Date -
N/A
app pub date -
Apr 22, 2013
filing date -
Jul 11, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A medical instrument includes a handpiece, an electromechanical transducer disposed in the handpiece, and an electrical circuit disposed at least partially in the handpiece for supplying alternating electrical current of a predetermined frequency to the transducer. A probe is operatively connected to the transducer for transmitting vibrations generated by the transducer to an operative site in a patient. A switching device is mounted to the handpiece and is operatively connected to the circuit and the transducer for enabling the supply of power to the transducer during a motion of the probe in a preselected direction relative to the handpiece and for disabling the supply of power to the transducer upon a termination of motion of the probe in the preselected direction.
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