Control systems for electrosurgical generator
US11090106B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2016 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Aug 22, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/00892
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A controller for an electrosurgical generator includes an RF inverter, a signal processor, a software compensator, a hardware compensator, and an RF inverter controller. The RF inverter generates an electrosurgical waveform and the signal processor outputs a measured value of at least one of a voltage, a current, or power of the electrosurgical waveform. The software compensator generates a desired value for at least one of the voltage, the current, or the power of the electrosurgical waveform, and the hardware compensator generates a phase shift based on the measured value and the desired value. The RF inverter controller generates a pulse-width modulation (PWM) signal based on the phase shift to control the RF inverter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.