Torsional ultrasound handpiece

Details Torsional ultrasound handpiece Torsional ultrasound handpiece

1998-06-29

2000-06-20

Buiz, Michael

Surgery

Instruments

Cutting, puncturing or piercing

606166, 604 22, A61F 900, A61B 1732

Patent

active

060772859

ABSTRACT:
A handpiece having two sets of piezoelectric elements. One set of elements is polarized to produce longitudinal motion. The other set of elements is polarized to produce torsional motion. An appropriate ultrasound driver drives each set of elements at their respective resonant frequencies to produce longitudinal vibration and torsional oscillation.

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Lin Shuyu, "Sandwiched Piezoelectric Ultrasonic Transducers of Longitudinal-Torsional Compound Vibrational Modes", IEEE Transactions on Ultrasonics, Ferrelectrics, and Frequency Control, vol. 44, No. 6, Nov. 1997, pp. 1189-1197.

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