Method and system for controlling output of RF medical generator
US8105323B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2006 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Sep 8, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/00892
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electrosurgical generator is disclosed. The generator includes a microprocessor configured to generate a target impedance trajectory having at least one slope. The target impedance trajectory includes a plurality of target impedance values. The microprocessor is configured to drive tissue impedance along the target impedance trajectory by adjusting the output level to substantially match tissue impedance to a corresponding target impedance value. The microprocessor is further configured to compare tissue impedance to a threshold impedance value and adjust output of the electrosurgical generator when the tissue impedance is equal to or greater than the threshold impedance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.