Reflection type pulse oximeter

Abstract

The invention relates to a reflection type pulse oximeter, which comprises an acquiring module, a processing module, a display module and a power supply module, wherein the acquiring module is used for acquiring pulse blood oxygen data, and comprises a light-emitting drive, a light-emitting tube and a light sensor; the light-emitting drive is used for driving the light-emitting tube; the light-emitting tube and the light sensor are arranged on the same side of a measured part, and an included angle with a predetermined degree is formed between the light-emitting tube and the light sensor; the light sensor acquires data by receiving reflected light of the measured part; the processing module is connected with the acquiring module, and is used for processing the pulse blood oxygen data acquired by the acquiring module; the display module is connected with the processing module, and is used for displaying information processed by the processing module to a user; and the power supply module is connected with the acquiring module, the processing module and the display module, and is used for supply power for each module under the control of the processing module. The reflection type pulse oximeter can be used for detecting the pulse blood oxygen saturation degree on a plurality of parts of a human body, does not press human organisms, and is simple in structure and convenient and quick in measurement.

Description

technical field [0001] The invention relates to the technical field of non-invasive detection, in particular to a reflective pulse oximeter. Background technique [0002] The research on the non-invasive detection technology of pulse oximeter has already begun in the early 20th century. Now most of the oximeters adopt the transmission detection method. On both sides, photosensitive sensors use transmitted light to detect blood oxygen saturation. [0003] The transmissive method requires the measured light tube and photosensitive sensor to be on both sides of the test site, such as figure 1 As shown, the light-emitting tube 1 and the photosensitive sensor 2 are placed on both sides of the finger, so that the position of the photosensitive sensor is relatively single, and it can only detect the finger, but cannot detect the blood oxygen saturation of multiple parts of the human body; secondly, the transmissive type mostly uses finger clips Type measurement, to a certain exte...

AI Technical Summary

Problems solved by technology

[0003] The transmissive method requires the measured light tube and photosensitive sensor to be on both sides of the test site, such as figure 1 As shown, the light-emitting tube 1 and the photosensitive sensor 2 are placed on both sides of the finger, so that the position of the photosensitive sensor is relatively single, and it can only detect the finger, but cannot detect the blood oxygen saturation of multiple parts of the human body; secondly, the transmissive type mostly uses finger clips Type measurement, to a certain extent, causes the user to feel oppressed, wears it for a long time, affects blood circulation, causes measurement errors, and has certain limitations in application

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