Ultrasonic surgical apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jul 4, 2000
Issued Date -
N/A
app pub date -
Aug 9, 1993
filing date -
Feb 7, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An electrical apparatus for driving an ultrasonic piezoelectric crystal transducer in a surgical handpiece for the fragmentation and aspiration of tissue, which apparatus includes an electronic control loop in combination with a voltage source amplifier having an output which is connected to the piezoelectric crystal transducer with a tuning inductor in parallel. A control system for monitoring the control loop and a component for controlling tissue selectivity are also disclosed.
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