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Blood oxygen detector detection unit and probe and making method of probe

A detection unit and detector technology, applied in the direction of sensors, optical sensors, diagnostic recording/measurement, etc., can solve the problem that the signal has a greater sensitivity to human motion, the requirements for the stability of the monitoring object are very high, and the measuring instrument is bulky. and other problems to achieve the effect of saving materials, reducing height, and improving signal strength

Active Publication Date: 2018-06-29
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] This kind of measuring instrument has a large volume and has very high requirements on the stability of the monitored object, because the fixed optical path of the instrument cannot move with the movement of the person, resulting in a large error in the detection result when the human body is moving, making the The signal is more sensitive to human motion

Method used

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  • Blood oxygen detector detection unit and probe and making method of probe
  • Blood oxygen detector detection unit and probe and making method of probe
  • Blood oxygen detector detection unit and probe and making method of probe

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[0111] Figure 4 A schematic diagram of growing an epitaxial structure on a substrate in the preparation method provided in this embodiment. Figure 5 In the preparation method provided for this embodiment, a schematic diagram of setting a first mask on the epitaxial structure. Figure 6 A schematic diagram of etching the epitaxial structure down to the P-type electrode layer in the preparation method provided in this embodiment. Figure 7 In the preparation method provided for this embodiment, a schematic diagram of setting a second mask on the epitaxial structure after the P-type electrode layer has been etched. Figure 8 In the preparation method provided for this embodiment, a schematic diagram of etching the epitaxy to the bottom N-type electrode layer. Figure 9 In the preparation method provided for this embodiment, a schematic diagram of setting a third mask on the epitaxial structure etched to the bottom N-type electrode layer. Figure 10 In the preparation method ...

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Abstract

The invention provides a blood oxygen detector detection unit, which comprises a signal transmitting end and a signal receiving end, wherein the signal transmitting end is used for transmitting infrared rays towards human skin, and the signal transmitting end, from bottom to top, comprises an infrared ray transmitting module and a red light transmitting module; the infrared ray transmitting moduleis used for transmitting the infrared rays towards the human skin; the red light transmitting module is used for transmitting red light towards the human skin; the signal receiving end is arranged arranged in a mode of being adjacent to the signal transmitting end, and the signal receiving end is used for receiving the infrared rays which comes from the human skin, transmitted from the signal transmitting end and is reflected after being irradiated onto the human skin and is used for calculating a degree of blood oxygen saturation in the human skin in accordance with a difference value between absorption rates of the infrared rays and the red light. The signal transmitting end and the signal receiving end are arranged in a mode of being adjacent, and the blood oxygen detector probe unit is quite small in overall dimensions; and in a human body moving process, the signal transmitting end and the signal receiving end just do quite slight relative motions relative to the skin, so that aphotoelectric signal can be kept stable.

Description

technical field [0001] The invention relates to the technical field of blood sample detection, in particular to a detection unit of a blood oxygen detector, a probe and a preparation method thereof. Background technique [0002] Blood oxygen saturation can reflect whether the human body is hypoxic, whether it is over-exercised, whether it has altitude sickness, etc. It is especially important for newborns, the elderly and sports people. Photoelectric blood oxygen monitoring technology is a non-destructive biometric detection method that uses the different absorption spectra of oxyhemoglobin (HbO) and ordinary hemoglobin (Hb) to measure the ratio of oxyhemoglobin (that is, blood oxygen saturation) in blood. Specifically, this method irradiates the skin with infrared light of different wavelengths, detects the light passing through the skin, and calculates the ratio of HbO according to the difference in absorption rate. Blood oxygen monitoring means. [0003] The products th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/1455
CPCA61B5/14552A61B2562/0238A61B2562/12
Inventor 徐云宋国峰江宇白霖陈华民王磊
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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