Bi-modal ultrasonic handpiece system
US12427058B2 · kind B2 · utility
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31References
12Claims
0Family size
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Key dates
| Filing date | Feb 24, 2023 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Oct 14, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2217/005
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ultrasonic handpiece includes a piezoelectric element assembly. Control signals drive the piezoelectric element assembly simultaneously in a first mode of oscillation and a second mode of oscillation. Feedback of a resulting oscillation of the piezoelectric element assembly in the first mode and the second mode is generated. Based on the feedback, the frequency of each of the first mode and second mode is independently adjusted, as needed, so that the resulting oscillation of each of the first mode and the second mode is each approximately at its respective resonant frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.