Circuit to generate high frequency signals
US9018983B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 9, 2013 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Aug 9, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00154
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Method and apparatus for electrosurgery including tissue coagulation using very high voltage pulses of electrical energy applied to the electrosurgical probe. This minimizes heating of the surrounding tissue in the probe and is especially suitable for precise and limited coagulation and fulguration without excessive tissue charring or other damage. The power at rated load of the applied pulses to the probe is typically over 300W and the duration of the on time is very short, so each group of pulse bursts is of relatively low duty cycle. An RF generator is also provided for delivering electrical energy to an electrosurgical probe with the proper characteristics, including fast switching times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.