Ultrasonic trocar system
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United States of America Patent
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Mar 17, 1998
Grant Date -
N/A
app pub date -
Jan 21, 1997
filing date -
Mar 22, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An ultrasonic trocar system includes a cannula having a guide bore, an obturator to be passed through the guide bore of the cannula so that the obturator can be removed, and a vibration generator for generating ultrasonic vibrations to be propagated to the obturator. The obturator is vibrated at an ultrasonic frequency to puncture a somatic layer. An intermediate member is interposed between the cannula and obturator.
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