US 2026/0215692 A1 · Arrangement for determining a pulse wave transit time of an object, computer-implemented method and computer program product

Abstract

Arrangement for determining a pulse wave transit time of an object, including a light source configured to irradiate a first surface of the object with light, and a light sensor configured to detect light emanating from the first surface of the object as a light signal, and a computer device configured to calculate a photoplethysmogram on the basis of the light signal. A motion sensor is configured to detect a movement of a second surface of the object as a motion signal. The computer device is configured to provide a seismocardiogram on the basis of the motion signal, and to synchronize the photoplethysmogram and the seismocardiogram, and to determine local extreme values over the course of time of the photoplethysmogram and the seismocardiogram, and taking into consideration local extreme values, to determine the pulse wave transit time between areas of the object associated with the first and second surfaces.

Claims15

Dependent claims

An arrangement for determining a pulse wave transit time of an object, comprising

a light source, which is configured to irradiate a first surface of the object with light, and
a light sensor, which is configured to detect light emanating from the first surface of the object and to provide as a light signal, and
a computer device, which is configured to calculate a photoplethysmogram-on the basis of the light signal,
wherein
a motion sensor is configured to detect a movement of a second surface of the object as a motion signal, and in that
the computer device is configured to provide a seismocardiogram on the basis of the motion signal and
to synchronize in time the photoplethysmogram and the seismocardiogram, and
to determine local extreme values over the course of time of the photoplethysmogram and the seismocardiogram, and
taking into consideration the local extreme values, to determine the pulse wave transit time between an area of the object associated with the first surface and an area associated with the second surface of the object.

6 more elements

A computer-implemented method for determining a pulse wave transit time of an object, comprising the steps:

irradiating a first surface of the object with light by means of a light source, and
providing a light signal, which is detected by means of a light sensor as light emanating from the first surface of the object, and
calculating, by means of a computer device, a photoplethysmogram on the basis of the light signal,
wherein the steps:
detecting a movement of a second surface of the object as a motion signal by means of a motion sensor, and
providing, by means of the computer device, a seismocardiogram on the basis of the motion signal, and
synchronizing in time the photoplethysmogram and the seismocardiogram, and
determining in each case local extreme values in the time curve of the photoplethysmogram and the seismocardiogram, and
determining the pulse wave transit time between an area of the object associated with the first surface and an area of the object associated with the second surface, taking into consideration the local extreme values.

6 more elements

Dependencies are inferred from the claim text.

Arrangement for determining a pulse wave transit time of an object, computer-implemented method and computer program product

Life of this patent

Arrangement for determining a pulse wave transit time of an object, computer-implemented method and computer program product

Life of this patent

Abstract

Claims15