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1. (WO2017055670) METHOD AND APPARATUS FOR ESTIMATING THE TRANSIT TIME OF THE AORTIC PULSE FROM TIME INTERVALS MEASURED BETWEEN FIDUCIAL POINTS OF A BALLISTOCARDIOGRAM

Pub. No.:    WO/2017/055670    International Application No.:    PCT/ES2016/070692
Publication Date: Fri Apr 07 01:59:59 CEST 2017 International Filing Date: Sat Oct 01 01:59:59 CEST 2016
IPC: A61B 5/02
A61B 5/11
A61B 5/0402
A61B 5/0295
Applicants: UNIVERSITAT POLITÈCNICA DE CATALUNYA
Inventors: PALLÀS ARENY, Ramon
CASANELLA ALONSO, Ramon
GÓMEZ CLAPERS, Joan
Title: METHOD AND APPARATUS FOR ESTIMATING THE TRANSIT TIME OF THE AORTIC PULSE FROM TIME INTERVALS MEASURED BETWEEN FIDUCIAL POINTS OF A BALLISTOCARDIOGRAM
Abstract:
The invention proposes a method and apparatus for estimating aortic pulse transit time (PTT) solely from time intervals measured between fiducial points of a longitudinal ballistocardiogram (BCG), without needing to apply any sensors to the zone in which it is desired to detect the arrival of an arterial pulse wave. Using the longitudinal BCG of a subject, which can be obtained by means of sensors integrated into a single element with which the subject's body makes contact, two fiducial points of the BCG waveform are detected, one of the points being associated with the arrival of the arterial pulse wave to a zone proximal with respect to the heart and the other being associated with the arrival of the arterial pulse wave to a distal zone, respectively. On the basis of the time interval between the two points, an estimation of the aortic (carotid-femoral) PTT is provided, directly or by means of a prior calibration process.