Dual probe with floating inner probe
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United States of America Patent
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Jun 4, 2013
Issued Date -
N/A
app pub date -
Mar 24, 2005
filing date -
Dec 30, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A percutaneous surgical instrument for de-bulking calculi or drilling bone includes an actuator for generating vibrations at ultrasonic frequencies and a horn coupled to said actuator for amplifying the actuator vibration. A fixed probe is attached to said horn for engaging the calculi and introducing the ultrasonic frequencies thereto. A floating probe is disposed concentric to and under said fixed probe and slidable thereover. A free mass is disposed between the horn and the floating probe for oscillating therebetween, in response to actuator vibration, for causing low frequency impact with the calculi.
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