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Blood oxygen saturation measurement confidence degree calculating method and system and storage medium

A computing method and computing system technology, applied in the field of signal processing, can solve the problems of missed detection, distortion of measurement results, false detection, etc., to avoid missed detection and false detection, improve reliability, and achieve the effect of reliability evaluation

Inactive Publication Date: 2019-03-26
SHENZHEN TECH UNIV
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Problems solved by technology

The above factors will cause distortion of the measurement results, leading to missed and false detections

Method used

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  • Blood oxygen saturation measurement confidence degree calculating method and system and storage medium
  • Blood oxygen saturation measurement confidence degree calculating method and system and storage medium
  • Blood oxygen saturation measurement confidence degree calculating method and system and storage medium

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Embodiment Construction

[0059] The present invention will be further explained and described below in conjunction with the accompanying drawings and specific embodiments of the description. For the step numbers in the embodiments of the present invention, they are only set for the convenience of illustration and description, and there is no limitation on the order of the steps. The execution order of each step in the embodiments can be performed according to the understanding of those skilled in the art Adaptive adjustment.

[0060] refer to figure 1 , the embodiment of the present invention provides a method for calculating the confidence level of blood oxygen saturation measurement, comprising the following steps:

[0061]S1. Recording light intensity information by photoplethysmography, the light intensity information including red light, infrared light transmission light intensity and infrared light reflection light intensity;

[0062] Further as a preferred implementation of step S1, the step ...

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Abstract

The invention discloses a blood oxygen saturation measurement confidence degree calculating method and system and a storage medium. The method comprises the following steps of: recording light intensity information through a photoelectric volume pulse wave mapping method, wherein the light intensity information comprises red light, infrared light transmission light intensity and infrared light reflection light intensity; establishing a linear regression model of a pulse blood oxygen signal characteristic value according to the light intensity information; calculating a confidence degree of a linear regression straight line in the linear regression model; and obtaining the confidence degree of the blood oxygen saturation measurement result according to the confidence degree of the linear regression straight line. By the adoption of the blood oxygen saturation measurement confidence degree calculating method and system and the storage medium, the linear regression model is constructed through the light intensity information obtained by the photoelectric volume pulse wave mapping method; and finally the confidence degree of the blood oxygen saturation measurement result is obtained through the linear regression model, and a reliable evaluation of a measurement value is achieved, thereby avoiding situations of missed detection and false detection caused by influences of interference factors such as motion artifacts, noise and the like, and improving the reliability and scientificity of the blood oxygen saturation measurement result. The blood oxygen saturation measurement confidence degree calculating method and system and the storage medium can be widely applied to the technical field of signal processing.

Description

technical field [0001] The invention relates to the technical field of signal processing, in particular to a calculation method, a system and a storage medium for measuring the confidence level of blood oxygen saturation. Background technique [0002] The diastole and contraction of the heart drive blood to flow through the lungs, so that oxygen is combined with reduced hemoglobin (Hb) to form oxyhemoglobin (Oxyhemoglobin, HbO2), and oxygen is transported to the capillaries through the blood and released. Sufficient oxygen is the material basis for realizing the metabolism of human tissue cells and maintaining life activities. Blood oxygen saturation is an important physiological parameter reflecting the oxygen content in the blood, which is directly related to the respiratory system, circulatory system and cardiopulmonary function. At present, blood oxygen saturation is widely used in intensive care, home health care and high-risk occupations such as firefighters, pilots, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00A61B5/1455
CPCA61B5/14551A61B5/7221
Inventor 林霖王涛
Owner SHENZHEN TECH UNIV
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