Device arranged for carrying out a bioelectrical interaction with an individual and a method for on-demand lead-off detection

US7453354B2 · kind B2 · utility

Assignee

• KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

• Harald Reiter · Aachen, DE
• Andras Montvay · Markgröningen, DE
• Josef Lauter · Geilenkirchen, DE
• Olaf Such · Aachen, DE
• Ralf Schmidt · Nuremberg, DE

Key dates

• Filing date: Oct 7, 2004
• Grant date: Nov 18, 2008
• Expiry date: Mar 14, 2025

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B5/276
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A device to carry out a bioelectrical interaction with an individual by means of electrodes 29, 29a whereby an on-demand verification of the integrity of the electrical contact of the electrodes is implemented. The device 20 comprises a control unit 22 arranged to determine an occurrence of the predefined event related to a quality of a measured signal. In case the predetermined event is detected, the control unit 22 actuates the testing means 24. The testing means is arranged to generate the test signals, I1, 12 and to apply them via a coupling circuit 23, 23a to the electrodes. In case it is desired that cumulative information about the contact integrity is obtained, is it sufficient to apply a single test signal per electrode. In case it is required to determine which of the electrodes has lost its contact, a sequence of test signals is generated by the sequencer 24b. The response signal from the electrodes 29, 29a is forwarded to the input filter 26, which is preferably also used for a normal signal analysis. The signal from the input filter 26 is directed via the input impedance 25, 25a to the input amplifier 28. The amplified response signal is forwarded to the signal process…