Signal processing apparatus for physiological signals

US7764987B2 · kind B2 · utility

Assignee

• Biotronik CRM Patent AG · CH

Inventors

• Thomas Dörr · Waldbronn, DE
• Ingo Weiss · Berlin, DE
• Peter Schneider · Berlin, DE

Key dates

• Filing date: Sep 1, 2005
• Grant date: Jul 27, 2010
• Expiry date: Oct 12, 2027

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/3702
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A signal processing apparatus is disclosed comprising an input stage for the preparation of a physiological signal, in particular an electrocardiogram, which is adapted to provide a signal of an alternating polarity, which is formed from the physiological signal and which is to be evaluated, and is connected to an evaluation stage for forwarding of the signal to be evaluated, wherein the evaluation stage is adapted to respond to a reference moment in time associated with the physiological signal, and for at least one signal segment, associated in respect of time with the reference moment in time, of the signal to be evaluated, to detect a respective amplitude value for at least some characteristic curve points contained in the signal segment such as signal maxima and minima, inflection points and so forth and to generate from the amplitude values obtained in that way a morphology code which describes the form of the respective signal segment.