Detection of the heartbeat in cranial accelerometer data using independent component analysis

US10765332B2 · kind B2 · utility

Assignee

• Brainlab AG · DE

Inventors

• Christian Harrer · Munich, DE
• Stephan Mittermeyer · Landshut, DE
• Bálint Varkuti · Munich, DE

Key dates

• Filing date: Apr 29, 2015
• Grant date: Sep 8, 2020
• Expiry date: Sep 9, 2036

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2562/0219
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention relates to a computer-implemented medical data processing method for determining a heartbeat signal describing the heartbeat of a patient in the time domain, the method comprising executing, on a processor of a computer, steps of: a) acquiring, at the processor, acceleration measurement data describing an acceleration in the time domain of an anatomical body part measured on an external surface of the anatomical body part; b) determining, by the processor, component analysis data describing a result of an independent component analysis in the time domain of the acceleration measurement data; c) acquiring, at the processor, heartbeat template data describing template shapes of heartbeat in the time domain; d) determining, by the processor and based on the component analysis data and the heartbeat template data, recurrent shape data describing a recurrence of certain signal shapes in the component analysis data; e) determining, based on the recurrent shape data, heartbeat signal data describing a time series of the heartbeat.