Medical device
US11033292B2 · kind B2 · utility
26Cited by
2,039References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2014 |
| Grant date | Jun 15, 2021 |
| Priority date | — |
| Expiry date | Jan 10, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/320089
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical device is described having a handle, a shaft coupled to the handle, an end effector coupled to the shaft and an ultrasonic transducer coupled to the end effector for delivering ultrasonic energy to tissue or a vessel to be treated. A drive circuit is provided for generating a drive signal that is applied to the ultrasonic transducer. In one embodiment, the drive circuit includes a resonant circuit and a controller that varies the period of the drive signal passed through the resonant circuit in order to control the power supplied to the ultrasonic transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.