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DEVICE FOR MEASURING CONCENTRATION OF SUBSTANCE IN BLOOD, AND METHOD FOR MEASURING CONCENTRATION OF SUBSTANCE IN BLOOD
DEVICE FOR MEASURING CONCENTRATION OF SUBSTANCE IN BLOOD, AND METHOD FOR MEASURING CONCENTRATION OF SUBSTANCE IN BLOOD
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机译:测量血液中物质浓度的装置,以及测量血液中物质浓度的方法
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摘要
The concentration of substance in blood is measured non-invasively, with high accuracy and with simple configuration. Laser light 100 generated by a light source 10 is locally irradiated on the body epithelium F of a subject, and the resulting diffused reflected light 200 is detected by a light detector 40. The laser light 100 has a wavelength of 9.26 µm. The laser light 100 is generated by converting and amplifying pulsed excitation light 101 from an excitation light source 11 to a long wavelength. A plate-shaped window 300 that is transparent to mid-infrared light is brought in close contact with the body epithelium F. The glucose concentration in interstitial fluid can be calculated using normalized light intensity calculated from a signal ratio of signals from a monitoring light detector 16 and light detector 40.
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