A New Dual Current-Mode Controller Improves Power Regulation in Electrosurgical Generators

Author

Friedrichs, D.A. ; Erickson, Robert ; Gilbert, Jeremy

Author_Institution

Dept. of Electr., Comput., & Energy Eng., Univ. of Colorado at Boulder, Boulder, CO, USA

Volume

6

Issue

1

fYear

2012

Firstpage

39

Lastpage

44

Abstract

A new dual current-mode controller produces a fast, accurate constant-power high-frequency ac output, with maximum current and voltage limits for an electrosurgical generator. The regulation of ac output power is achieved with near-deadbeat control, without measurement or feedback of the output voltage or current. Compared to existing technology, the prototype generator reduces unintended tissue damage by significantly improving regulation of output power, while reducing complexity and parts count.

Keywords

biological tissues; biomedical electronics; biomedical equipment; controllers; electric generators; surgery; dual current-mode controller; electrosurgical generators; power regulation; tissue damage; Current measurement; Inductors; Inverters; Power generation; Prototypes; Voltage control; Voltage measurement; Current-mode control; electrosurgery; inverter; Algorithms; Animals; Electric Power Supplies; Electricity; Electrosurgery; Equipment Design; Humans; Reproducibility of Results;

fLanguage

English

Journal_Title

Biomedical Circuits and Systems, IEEE Transactions on

Publisher

ieee

ISSN

1932-4545

Type

jour

DOI

10.1109/TBCAS.2011.2159859

Filename

5961658