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Motion interference cancellation method and system for blood oxygen measurement equipment

A technology of motion interference and measurement equipment, which is applied in the field of blood oxygen measurement, can solve the problems of large delay in judgment of motion interference and inability to measure the results well, and achieve the goals of small delay, elimination of motion interference, and improvement of measurement accuracy Effect

Active Publication Date: 2019-03-26
GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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Problems solved by technology

[0004] In the current method, because the judgment is based on the stability of the results, there will be a large delay in the judgment of motion interference. At the same time, when motion interference occurs, it can only alarm, but cannot measure the results better

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  • Motion interference cancellation method and system for blood oxygen measurement equipment
  • Motion interference cancellation method and system for blood oxygen measurement equipment
  • Motion interference cancellation method and system for blood oxygen measurement equipment

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Embodiment Construction

[0023] The specific implementations of the motion interference canceling method of the blood oxygen measuring device and the motion interference canceling system of the blood oxygen measuring device of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] see figure 1 , figure 1 It is a flowchart of a motion interference canceling method for a blood oxygen measuring device according to an embodiment.

[0025] A motion interference cancellation method for a blood oxygen measuring device, comprising the following steps:

[0026] Step S101: Obtain the received light intensity data of red light and received light intensity data of infrared light measured by the blood oxygen measuring device within a set period of time;

[0027] In step S101, the set time period can be 8s, 10s, 12s, etc., which can be set according to requirements.

[0028] Step S103: Calculate the morphological similarity between the received red light int...

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Abstract

The invention provides a motion interference offset method and system for blood oxygen measuring equipment. The method comprises following steps: acquiring red light reception intensity data and infrared light reception intensity data measured by the blood oxygen measuring equipment in a set period; calculating shape similarity of the red light reception intensity data and the infrared light reception intensity data; when the shape similarity is larger than a set threshold, calculating red light interference parameters according to the red light reception intensity data and preset interference reference data sequences and eliminating the motion interference of the red light reception intensity data according to the red light interference parameters, and calculating infrared light interference parameters according to the infrared light reception intensity data and preset interference reference data sequences and eliminating the motion interference of the infrared light reception intensity data according to the infrared light interference parameters; and calculating blood oxygen values according to the infrared light reception intensity data and the red light reception intensity data with the motion interference being eliminated. By employing the method mentioned above, the motion interference can be accurately determined, the delay time is short, and the motion interference can be further eliminated.

Description

technical field [0001] The invention relates to the technical field of blood oxygen measurement, in particular to a method and system for canceling motion interference of blood oxygen measurement equipment. Background technique [0002] Blood oxygen saturation (SaO2) is the percentage of the capacity of oxygen-bound oxyhemoglobin (HbO2) in the blood to the total hemoglobin (Hb, hemoglobin) capacity that can be combined, that is, the concentration of blood oxygen in the blood, which is the respiratory cycle important physiological parameters. [0003] The current measurement method is to use a finger cot photoelectric sensor. When measuring, you only need to put the sensor on the human finger, use the finger as a transparent container for hemoglobin, and use red light with a wavelength of 660nm and near-infrared light with a wavelength of 940nm as the incident light source. , Measure the light transmission intensity through the tissue bed to calculate the hemoglobin concentr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/1455
CPCA61B5/14551A61B5/7207A61B5/7221
Inventor 黄安麒李国梁
Owner GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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