Back to results
US 6,077,285 AGranted
Torsional ultrasound handpiece
AssigneeAlcon Laboratories, Inc.
InventorMikhail Boukhny
Life of this patent
Estimating the term…
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.
Claims2
An ultrasound surgical handpiece, comprising:
- a) a handpiece shell;
- b) an ultrasound horn held within the shell;
- c) a pair of ultrasound crystals polarized to produce longitudinal motion held in contact with a pair of ultrasound crystals polarized to produce torsional motion, at least one of the pairs of crystals contacting the ultrasound horn;
- and
- d) a cutting tip mounted on the horn opposite the torsional and longitudinal crystals.
2 more elements
Dependencies are inferred from the claim text.