Microwave and RF ablation system and related method for dynamic impedance matching
US8968297B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 19, 2011 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Jul 30, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/167
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electrosurgical system and method for performing electrosurgery is disclosed. The electrosurgical system includes an electrosurgical generator adapted to supply electrosurgical energy to tissue. The electrosurgical system includes an electrosurgical instrument, such as an electrosurgical antenna, knife, forceps, suction coagulator, or vessel sealer. The disclosed system includes an impedance sensor, a controller, dynamic impedance matching network, and an electrosurgical energy generator. The dynamic impedance matching network includes a PIN diode switching array configured to selectively activate a plurality of reactive elements. The disclosed arrangement of reactive elements provides real-time impedance correction over a wide range of impedance mismatch conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.