Device and method for measuring pulse waving speed

A technology of pulse wave and propagation velocity, which is applied in the field of pulse wave velocity devices, can solve the problems of reducing the accuracy of pulse wave velocity measurement, large measurement error of pulse wave propagation time, and affecting the measurement accuracy of pulse wave velocity, etc., to achieve accurate pulse wave Propagate time, reduce calculation amount, use safe effect
CN101084828AInactive Publication Date: 2007-12-12INST OF MECHANICS - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
INST OF MECHANICS - CHINESE ACAD OF SCI
Publication Date
2007-12-12
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses a device and method for measuring pulse wave velocity of human or mammal. The device comprises at least two sensors connecting with a signal processing element, wherein at least one of the first and second sensors is a diffused silicon pressure sensor. The signal processing element comprises amplifying circuits, a filter circuit, an analog to digital conversion circuit, and a main control circuit in sequential connection. The sensors are connected to the corresponding amplifying circuits respectively. The signal processing element also comprises signal separation circuit for separating transducer spikes. The method comprises obtaining maximum pulse signals, simultaneous recording two pulse wave signals with certain distance Delta s, abstracting characteristic reference point, calculating time interval difference Delta t of the signals, and calculating the pulse wave velocity. The device has the advantages of high safety, convenient operation, and good low-frequency response. The method has the advantages of reduced calculation amount, determined reference point, and high accuracy.
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Description

technical field

[0001] The invention relates to a method and a device for measuring pulse wave velocity, in particular to a device and a method for measuring the pulse wave velocity of a human body or a mammal. Background technique

[0002] The cyclic contraction and relaxation of the heart causes the blood velocity, flow rate and vibration of the vessel wall in the arterial vessel to propagate along the arterial vessel. The propagation velocity of the pulse wave is directly related to the elasticity of the arterial tube. The greater the hardness of the blood vessel, the greater the pulse wave velocity. Therefore, the degree of elasticity of the arterial vessel can be evaluated by measuring the pulse wave velocity.

[0003] Pulse wave velocity is defined as the ratio of the distance between two measurement points to the pulse wave propagation time. Known device and method for measuring pulse wave transit time, such as the technology disclosed in the Chinese Patent No. CN998...

Claims

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