Torsional ultrasound handpiece
US6077285A · kind A · utility
502Cited by
13References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 29, 1998 |
| Grant date | Jun 20, 2000 |
| Priority date | — |
| Expiry date | Jun 29, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/320098
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.