Non-invasive measurement method of hemoglobin concentration based on the principle of optical reflection
A technology of hemoglobin concentration and optical reflection, which is applied in the field of non-invasive measurement of hemoglobin concentration based on the principle of optical reflection, can solve the problems of increased infection of patients, inability to monitor in real time, and long time consumption
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Embodiment 1
[0060] Embodiment 1: as Figure 1 ~ Figure 2 As shown, a non-invasive measurement method of hemoglobin concentration based on the principle of optical reflection, comprising the following steps:
[0061] Step 1: setting a light source on the outer layer of human skin tissue, said light source respectively emitting near-infrared incident light with wavelengths of λ1 and λ2; setting two sets of photodetectors on both sides of the light source;
[0062] The first group of photodetectors includes a first photodetector and a second photodetector, and the second group of photodetectors includes a third photodetector and a fourth photodetector; the first photodetector and The distance from the second photodetector to the light source is r 1 ; The distance between the third photodetector and the fourth photodetector to the light source is r 2 ;
[0063] Step 2: Obtain the absorbance A of the incident light emitted by the light source after being reflected by the human skin tissue, ...
Embodiment 2
[0080] Embodiment 2: Another non-invasive method for measuring hemoglobin concentration based on the principle of optical reflection, comprising the following steps:
[0081] Step 1: set a light source on the outer layer of human skin tissue, and the light source emits near-infrared incident light with wavelengths λ1 and λ2 respectively; two sets of photodetectors are set on both sides of the light source; specifically, the λ1 is 660nm, The λ2 is 850nm;
[0082] The first group of photodetectors includes a first photodetector and a second photodetector, and the second group of photodetectors includes a third photodetector and a fourth photodetector; the first photodetector and The distance from the second photodetector to the light source is r 1 ; The distance between the third photodetector and the fourth photodetector to the light source is r 2 ; the r 1 and r 2 Satisfy the following relation: 01 -r 2 )<10mm; the included angles formed by the connection lines between tw...
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