Electrosurgical apparatus and method for its operation

US5849010A · kind A · utility

Assignee

• Helmut Wurzer · DE

Inventors

• Helmut Wurzer · Dresden, DE
• Rainer Mäckel · Bocholt, DE

Key dates

• Filing date: Oct 30, 1995
• Grant date: Dec 15, 1998
• Expiry date: Oct 30, 2015

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B18/1206
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An electrosurgical apparatus has a radio-frequency generator (11) with a variable basic power setting and to which a cutting electrode (12) and a neutral electrode (13) are connected. A power measuring device (15) is connected to the electrodes (12, 13) and acts on a regulating stage (16) which is connected to the power regulating input of the radio-frequency generator (11). The number of sparkovers within a predetermined plural number of periods is determined and is set by regulation of the output power of the radio-frequency generator (11) to a constant value which lies beneath twice the predetermined plural number.