Electric power source for electrosurgical apparatus
US4154240A · kind A · utility
80Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 1978 |
| Grant date | May 15, 1979 |
| Priority date | — |
| Expiry date | Jan 3, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/0066
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A high frequency oscillator and a low frequency oscillator are provided to produce a high frequency cutting signal and a low frequency signal respectively. The high frequency cutting signal is modulated by a signal produced by differentiating the low frequency signal to form a coagulation signal. The high frequency cutting signal and the coagulation signal are compounded on a time division basis by a blend control signal generated by a blend control signal generating circuit to form a blend signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.