Surgical generator for ultrasonic and electrosurgical devices
US12408967B2 · kind B2 · utility
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2,660References
6Claims
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Key dates
| Filing date | Nov 29, 2023 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Nov 29, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R2201/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for determining motional branch current in an ultrasonic transducer of an ultrasonic surgical device over multiple frequencies of a transducer drive signal. The method may comprise, at each of a plurality of frequencies of the transducer drive signal, oversampling a current and voltage of the transducer drive signal, receiving, by a processor, the current and voltage samples, and determining, by the processor, the motional branch current based on the current and voltage samples, a static capacitance of the ultrasonic transducer and the frequency of the transducer drive signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.