HF surgical device

US8900226B2 · kind B2 · utility

Assignee

• Erbe Elektromedizin GmbH · DE

Inventors

• Peter Selig · Hechingen, DE
• Martin Fritz · Kobenz, AT

Key dates

• Filing date: Aug 12, 2010
• Grant date: Dec 2, 2014
• Expiry date: Nov 6, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2018/00875
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An HF surgical device with an autostart function for cutting and/or coagulating biological tissue with HF current. The device comprises an HF generator for generating HF current, a selected output for connecting a monopolar/bipolar electrode to the HF surgical device, a first measurement device assigned to the output for measuring a first measured value for an impedance of the electrode connected to the output, a first comparator for comparing the first measured value with a first setpoint, for switching-off the first measurement devices and for switching-on a second measurement device if the first measured value is lower than the first setpoint, for measuring a second measured value for the impedance of the connected electrode and a second comparator for comparing the second measured value with a second setpoint and for switching-on the HF current for the output if the second measured value is lower than the second setpoint.