Method and device for quantification of neuromuscular stimulations due to RF-currents

US11052257B2 · kind B2 · utility

Assignee

• Erbe Elektromedizin GmbH · DE

Inventors

• Markus Enderle · Lörrach, DE
• Ulrich Biber · Reutlingen, DE
• Ovidiu Jurjut · Rötteln, DE

Key dates

• Filing date: May 26, 2020
• Grant date: Jul 6, 2021
• Expiry date: May 26, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B5/4029
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A two-part NMS-test bench is provided with which instruments, generator voltages, and surgery modes can be evaluated with regard to neuromuscular stimulations. By separating the NMS-test bench in a first part for application of the instrument and in the second part for evaluation of the physiological effect on nerves, a measurement free of artifacts is possible. The spatial and timely separation of the RF-application from the recording of the compound action potentials makes RF-disturbances ineffective. The electrical signals gained in the instrument test chamber can be pre-processed. The recorded electrical signals emitted from the instrument can be evaluated at the nerve model an arbitrary number of times. The variance involved with the recording of compound action potentials during direct use of the instrument can thus be minimized. The separated test of the signals at the nerve model avoids thermal damage of a prepared nerve and falsification of measurement results.