Longitudinal-torsional ultrasonic tissue dissection
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United States of America Patent
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May 20, 2008
Grant Date -
Dec 1, 2005
app pub date -
Aug 3, 2005
filing date -
Apr 12, 2000
priority date (Note) -
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Abstract
An ultrasonic tissue dissection system providing combined longitudinal and torsional motion of tips, together with irrigation and aspiration, for improved cutting of resistant biological tissue. The system permits the use of common and inexpensive electro-mechanical transducers for the production of such motion through the use of longitudinal-torsional resonators.
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