A method and portable device for measuring blood oxygen saturation

A portable device and saturation technology, applied in the field of measuring blood oxygen saturation, can solve the problems of poor efficiency and low precision, and achieve the effects of accurate measurement results, strong light intensity signal, and removal of absorption

Active Publication Date: 2017-05-31
辛勤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the problems of low accuracy and poor efficiency of the existing reflective method for measuring blood oxygen saturation, the present invention provides a method for measuring blood oxygen saturation

Method used

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  • A method and portable device for measuring blood oxygen saturation
  • A method and portable device for measuring blood oxygen saturation
  • A method and portable device for measuring blood oxygen saturation

Examples

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Embodiment Construction

[0041] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted herein to avoid unnecessarily limiting the present invention.

[0042] refer to figure 1 , figure 1 Shown is a schematic flowchart of a specific implementation of a method for measuring blood oxygen saturation provided by the present invention.

[0043] Ox...

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Abstract

Disclosed is a method for measuring blood oxygen saturation, wherein the method comprises: sending a first measurement light, a second measurement light and a reference light to the body surface skin (10) of the object to be measured, and receiving the reflected light of the first measurement light, the second measurement light and the reference light (S101); obtaining a first difference value and a second difference value, wherein the first difference value is the difference in the rate of change of the light intensity between the first reflected light and the reference reflected light, and the second difference value is the difference in the rate of change of the light intensity between the reference reflected light and the second reflected light (S102); and obtaining, by calculation, the ratio x of the first difference value and the second difference value, and calculating the blood oxygen saturation y in accordance with the ratio x (S103). Accordingly, disclosed is a portable device (20) for measuring blood oxygen saturation. Using the above-mentioned method and the portable device (20), the real-time accurate measurement of blood oxygen saturation can be achieved.

Description

technical field [0001] The invention belongs to the field of physiological parameter measurement, and in particular relates to a method for measuring blood oxygen saturation and a portable device. Background technique [0002] Oxygen is an important element to maintain normal physiological activities of the human body. Oxygen in the air enters the blood after being exchanged through the lungs of the human body, and is combined with hemoglobin to be transported to the whole body. Hemoglobin consists of four chains, two alpha chains and two beta chains, each chain has a ring of heme containing an iron atom. Oxygen binds to iron atoms and is transported by the blood. Each gram of hemoglobin can bind 1.34ml of oxygen, which is 70 times the amount of dissolved oxygen in plasma. [0003] Oxyhemoglobin (HbO 2 ) and reduced hemoglobin-based oxygen saturation (SO 2 ) characterizes the state of the human oxygen cycle, and is an important parameter for judging the human respiratory...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/1455
CPCA61B5/1455
Inventor 辛勤
Owner 辛勤
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