A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/32 (2006.01) A61B 17/03 (2006.01) B06B 1/06 (2006.01)
Patent
CA 2186721
An improved surgical instrument is described wherein, an ultrasonic stack includes one or more piezoelectric sections surrounded by at least first resonator section and a second resonator section. The excitation signal for the ultrasonic stack is adapted to provide power at a first and a second frequency in order to drive the surgical tip of the instrument at a first frequency and second frequency simultaneously.
Ethicon Endo-Surgery Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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