A pulse blood oxygen monitoring system with added reference light source calibration and method thereof

A technology of pulse oximetry and reference light source, which is applied in medical science, sensors, diagnostic recording/measurement, etc., can solve the problem of inaccurate blood oxygen saturation measurement, achieve the effect of accurate calculation formula and reduce error

Active Publication Date: 2019-01-08
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0006] The purpose of the present invention is to: propose a pulse oximetry monitoring system and method with added reference light source calibration, and solve the problem that the existing three-wavelength blood oxygen saturation detection method is still inaccurate in measuring blood oxygen saturation

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  • A pulse blood oxygen monitoring system with added reference light source calibration and method thereof
  • A pulse blood oxygen monitoring system with added reference light source calibration and method thereof
  • A pulse blood oxygen monitoring system with added reference light source calibration and method thereof

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention, that is, the described embodiments are only some of the embodiments of the present invention, but not all of the embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0030] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the...

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Abstract

The invention discloses a pulse blood oxygen monitoring system and a pulse blood oxygen monitoring method for realizing more accurate calibration by adding a reference light source, belonging to the technical field of pulse blood oxygen monitoring. It can solve the problem of low precision caused by approximate processing in the existing calculation process. Methodology used: On the basis of 660 nm and 940 nm light sources used in blood oxygen probe, A reference light source with the wavelength of 800 nm is added to calibrate the system. The improved three light source probe is used in the signal acquisition part of the system calibration to avoid the approximate treatment in the formulated simplification of the calculation process of the information processing part, which makes the calculation formula of blood oxygen saturation more accurate. 800 nm and 660 nm, 800 nm and 940 nm, 660 nm and 940 nm light source were used for calibration, respectively, and 660 nm and 940 nm light sourcewere still used for actual measurement. The invention has the advantages that more accurate system parameters are obtained, and the blood oxygen content measurement value is more accurate.

Description

technical field [0001] The invention relates to a pulse oximetry monitoring system and method with added reference light source calibration, which are used for pulse oximetry monitoring and belong to the technical field of pulse oximetry monitoring. Background technique [0002] The pulse oximeter monitoring system, generally referred to as a finger clip oximeter, is a measurement system that obtains the light absorption parameters of arterial blood by measuring the light transmission intensity of the finger, and calculates the blood oxygen content. Because of its non-invasive, convenient measurement, and real-time monitoring features, it is widely used in clinical and sports monitoring fields. The sensor of the monitoring system, that is, the finger-clip blood oxygen probe, is fixed on the finger end of the human body during measurement, and the finger is used as a container for hemoglobin, and the optical signal transmitted through the finger is transmitted to the signal p...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/1455
CPCA61B5/14551A61B5/14552A61B2560/0233
Inventor 杨立峰胡一馨彭真明张希仁
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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