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Arteriosclerosis degree evaluating method and device and arteriosclerosis detector

A kind of arteriosclerosis, degree technology, applied in the measurement of pulse rate/heart rate, diagnostic record/measurement, medical science, etc., can solve the problem of complex detection method of arteriosclerosis degree

Inactive Publication Date: 2018-04-27
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the purpose of the present invention is to provide a method for evaluating the degree of arteriosclerosis, a device and an arteriosclerosis detector, so as to improve the problem that existing equipment is more complicated in detecting the degree of arteriosclerosis.

Method used

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  • Arteriosclerosis degree evaluating method and device and arteriosclerosis detector
  • Arteriosclerosis degree evaluating method and device and arteriosclerosis detector
  • Arteriosclerosis degree evaluating method and device and arteriosclerosis detector

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Embodiment 1

[0032] This embodiment provides a method for evaluating the degree of arteriosclerosis. The method can be performed by an arteriosclerosis detector, which can be a portable device. In one embodiment, the arteriosclerosis detector is a wearable device. In another embodiment, the arteriosclerosis detector is a portable terminal including a signal collector and a processor. The signal collector and the processor can be integrated or physically separated. In practical applications, the processor You can also use mobile phones, tablet computers, etc., all of which can achieve portable detection. See figure 1 The flow chart of a method for evaluating the degree of arteriosclerosis shown specifically includes the following steps:

[0033] Step S102: Collect PPG signals of at least two body parts of the target object.

[0034] In practical applications, the PPG (photoplethysmograph, photoplethysmograph) signals of at least two body parts of the target object (that is, the person receiving...

specific Embodiment approach

[0038] (1) Perform interference filtering processing on each PPG signal; that is, preprocess the collected original PPG signal to filter out interference such as baseline drift caused by human respiratory movement.

[0039] (2) Detect the characteristic points of each PPG signal after interference filtering. Specifically, the feature points of each PPG signal after interference filtering can be detected based on the differential threshold method. The feature points include the PPG starting point (that is, the PPG trough), the PPG peak point (that is, the PPG peak), and the PPG one. The maximum point of the first derivative (the maximum value of the first derivative). Specifically, you can refer to image 3 A schematic diagram of PPG feature point detection shown, image 3 Point A is the starting point of PPG, point B is the maximum point of the first-order differential of PPG, and point C is the peak point of PPG.

[0040] Step S106: Determine the pulse wave conduction velocity of...

Embodiment 2

[0051] Regarding the method for evaluating the degree of arteriosclerosis provided in the first embodiment, an embodiment of the present invention provides a device for evaluating the degree of arteriosclerosis, which can be set on an arteriosclerosis detection device, see Image 6 The structure diagram of a device for evaluating the degree of arteriosclerosis shown includes the following modules:

[0052] The signal collection module 602 is used to collect PPG signals of at least two body parts of the target object;

[0053] The feature point detection module 604 is used to detect feature points of each PPG signal;

[0054] The conduction velocity determination module 606 is used to determine the pulse wave conduction velocity of the target object according to the characteristic points of each PPG signal;

[0055] The arterial evaluation module 608 is used to evaluate the degree of arteriosclerosis of the target object based on the pre-established correspondence between pulse wave con...

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Abstract

The invention provides an arteriosclerosis degree evaluating method and device and an arteriosclerosis detector, and relates to the technical field of arteriosclerosis detection. The arteriosclerosisdegree evaluating method includes the steps of collecting PPG signals of at least two body parts of a target object and detecting characteristic points of the PPG signals; according to the characteristic points of all the PPG signals, determining the pulse wave conduction velocity of the target object; on the basis of preliminarily established corresponding relations between pulse wave conductionvelocities and ages, evaluating the arteriosclerosis degree of the target object. According to the arteriosclerosis degree evaluating method and device and the arteriosclerosis detector, the arteriosclerosis degree evaluating mode is more convenient and feasible.

Description

Technical field [0001] The invention relates to the technical field of arteriosclerosis detection, in particular to an arteriosclerosis degree evaluation method, device and arteriosclerosis detector. Background technique [0002] Cardiovascular disease is a major disease that seriously endangers human health. Arteriosclerosis is the common pathophysiological basis of most cardiovascular diseases. Arteriosclerosis of any body part may cause ischemic function in the corresponding area, such as coronary heart disease, Moderate stroke. Therefore, knowing the degree of arterial stiffness is the key to the prevention and treatment of cardiovascular diseases. [0003] Today's arteriosclerosis detection equipment is mainly divided into two types: invasive detection and non-invasive detection. Invasive detection equipment mainly uses arteriography to detect the degree of arteriosclerosis. However, arteriography-based detection equipment is an invasive operation. It has the characteristics...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/024A61B5/00
CPCA61B5/02007A61B5/02416A61B5/6802A61B5/7203
Inventor 苗芬李烨刘记奎刘增丁闻博
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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