System and method for measuring a pulse wave of a subject

A technology for measuring objects and pulse waves, applied in the field of biometrics, can solve inaccurate problems and achieve the simple effect of accelerometers

Active Publication Date: 2016-07-27
KONINKLJIJKE PHILIPS NV
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  • Description
  • Claims
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Problems solved by technology

However, since the measurement point where the sensor 101 will be placed is found by the doctor's or nurse's touch, the corresponding pulse wave signal may not represent the strongest pulse for, for example, the carotid and femoral arteries, thus causing measurement results such as , calculation result of pulse transit time) is inaccurate

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  • System and method for measuring a pulse wave of a subject

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Embodiment Construction

[0044] The present invention will be described with respect to particular embodiments and with reference to certain drawings but the invention is not limited thereto but only by the claims. The drawings described are only schematic and non-limiting. In the drawings, the size of some of the elements may be exaggerated and not drawn on scale for illustrative purposes.

[0045] image 3 A block diagram of a system 4 for measuring a pulse wave of a subject according to an embodiment of the present invention is shown. The system 4 comprises a first sensor array 31 , a second sensor array 32 , a derivation unit 102 , a first calculation unit 103 and optionally a second calculation unit 104 , an obtaining unit 106 and a determining unit 108 .

[0046] The first sensor array 31 and the second sensor array 32 are to be placed on the skin of the subject over a first artery (e.g. carotid artery) and a second artery (e.g. femoral artery) respectively for sensing the first artery of the ...

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Abstract

The present application relates to a system and method for measuring a pulse wave of a subject. The system comprises: a first sensor array and a second sensor array for respectively sensing a corresponding pulse wave of a first and a second artery of the subject, each of the first sensor array and the second sensor array comprising a plurality of sensors for respectively acquiring a plurality of first signals indicating a vibration of the skin; a deriving unit configured to derive, for each of the first sensor array and the second sensor array, a second signal representing the corresponding pulse wave from the plurality of first signals; and a first calculating unit configured to calculate a pulse transit time between the first artery and the second artery from the second signal derived for the first sensor array and the second signal derived for the second sensor array. An embodiment of this invention can improve accuracy of pulse wave measurement.

Description

technical field [0001] The present invention relates to biometrics and, in particular, to systems and methods for measuring pulse waves of a subject. Background technique [0002] Pulse wave measurement is playing an increasingly important role in advanced medical testing. As an example of pulse wave measurement, pulse wave velocity (PWV) measurement is used to evaluate arteriosclerosis, which is one of the criteria for evaluating hypertension and cardiovascular disease (CVD). More specifically, femoral pulse wave velocity (cfPWV) is considered the "gold standard" for evaluating aortic stiffness. [0003] PWV is defined as the distance between two arterial measurement points divided by the pulse transit time during which a subject's pulse wave travels between the two arterial measurement points. For example, cfPWV is defined as the distance between a measurement point on the skin over the subject's carotid artery and a measurement point on the skin over the subject's femor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/02A61B5/021
CPCA61B5/02007A61B2562/0219A61B2562/04A61B5/02125
Inventor C·M·F·维耶拉尔-布特里G·莫伊斯D·贝拉W·莫Y·钱
Owner KONINKLJIJKE PHILIPS NV
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