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Oxyhemoglobin saturation detection method based on wearable equipment

A detection method and wearable device technology, applied in the field of blood oxygen saturation detection, can solve problems such as inability to accurately measure blood oxygen saturation, and achieve the effect of increasing reliability and accuracy

Active Publication Date: 2021-07-13
北京雪扬科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a blood oxygen saturation detection method based on a wearable device to solve the problem that blood oxygen saturation cannot be accurately measured in the prior art

Method used

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  • Oxyhemoglobin saturation detection method based on wearable equipment
  • Oxyhemoglobin saturation detection method based on wearable equipment
  • Oxyhemoglobin saturation detection method based on wearable equipment

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] The embodiment of the present invention provides a blood oxygen saturation detection method based on a wearable device, figure 1 It is a flowchart of a blood oxygen saturation detection method based on a wearable device in an embodiment of the present invention, please refer to figure 1 , the method includes the following steps:

[0063] Step S101, acquiring relevant information about the body surface of the subject to be detected under the action of at least two beams of monochromatic light; the body surface is the body surface of the subject to be detected with pulse characteristics;

[0064] Step S102, analyzing the relevant information, and obtaining multi-scale features corresponding to at least two beams of monochromatic light respectively; the multi-scale features include at least two feature parameters corresponding to each beam of monochromatic light;

[0065] Step S103 , calculating the blood oxygen saturation of the multi-scale feature based on the multiple ...

Embodiment 2

[0071] On the basis of embodiment 1, the at least two beams of monochromatic light include red light and infrared light;

[0072] Correspondingly, the acquiring the relevant information of the body surface of the subject to be detected under the action of at least two beams of monochromatic light includes: acquiring the relevant information of the body surface of the subject to be detected under the action of red light and infrared light;

[0073] The analyzing the relevant information, respectively obtaining multi-scale features corresponding to at least two beams of monochromatic light, includes: analyzing the relevant information of the red light and infrared light, respectively obtaining the corresponding information of the red light and the infrared light Multiscale features of light.

[0074] The working principle of the above technical solution is: the solution adopted in this embodiment is to set the monochromatic light as red light and infrared light. Obtain relevant...

Embodiment 3

[0078] On the basis of Embodiment 2, the analysis of the information related to the red light and the infrared light is carried out, and the multi-scale features corresponding to the red light and the infrared light are obtained respectively, including:

[0079] Under the action of the red light, a first DC signal and a first AC signal corresponding to the red light are obtained based on photoplethysmography, and the first AC signal is a change signal of an arterial pulse;

[0080] Under the action of the infrared light, a second DC signal and a second AC signal corresponding to the infrared light are obtained based on photoplethysmography, and the second AC signal is a change signal of an arterial pulse;

[0081] The average wavelength of the red light, the average wavelength of the infrared light, the first DC signal and the first AC signal, and the second DC signal and the second AC signal are used as multi-scale features.

[0082] The working principle of the above technic...

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Abstract

The invention discloses an oxyhemoglobin saturation detection method based on wearable equipment. The method comprises the steps that related information of the body surface of a to-be-detected object under the action of at least two beams of monochromatic light is obtained; the body surface is a body surface with pulse characteristics of the to-be-detected object; the related information is analyzed, and multi-scale features corresponding to at least two monochromatic light beams are obtained; the multi-scale features comprise at least two feature parameters corresponding to each beam of monochromatic light; and oxyhemoglobin saturation calculation is performed on the multi-scale features based on a multiple linear regression model to obtain the oxyhemoglobin saturation of the to-be-detected object. According to the scheme provided by the invention, multi-scale features are used, the problem of measurement precision caused by poor anti-interference capability of traditional wearable equipment is eliminated, and the problem of measurement precision reduction caused by errors of any influence factor is eliminated by adopting multi-scale feature calculation, therefore, by adopting the scheme, the reliability and the accuracy of oxyhemoglobin saturation detection and calculation are improved.

Description

technical field [0001] The invention relates to the technical field of blood oxygen saturation detection, in particular to a wearable device-based blood oxygen saturation detection method. 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. The functional oxygen saturation is the ratio of HbO2 concentration to HbO2+Hb concentration, which is different from the percentage of oxyhemoglobin. Therefore, monitoring arterial oxygen saturation (SaO2) allows estimation of lung oxygenation and hemoglobin oxygen-carrying capacity. [0003] The traditional blood oxygen saturation measurement method is to first collect blood from the human body, then use a blood gas analyzer to perform electrochemical...

Claims

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Application Information

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IPC IPC(8): A61B5/1455A61B5/00
CPCA61B5/14551A61B5/7203A61B5/7257A61B5/725A61B5/6802
Inventor 白雪扬
Owner 北京雪扬科技有限公司
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