A wearable non-invasive continuous blood glucose monitor based on photoacoustic spectrum characteristics

Abstract

The invention discloses a wearable noninvasive dynamic blood glucose monitor based on photo-acoustic spectrometry features and relates to the field of blood glucose level detection in order to solve the technical problems that an existing noninvasive glucometer is single in detection structure, necessary measurement compensation and correction lack, work precision of the existing noninvasive glucometer is greatly affected by the environment when there is individual difference, and the deviation between a real blood glucose value and a measured value is large. Besides, the existing glucometer has the technical problems of being inconvenient to carry, low in stability, poor in universality and the like. The wearable noninvasive dynamic blood glucose monitor mainly structurally comprises a multi-wavelength tunable fiber laser, a microprocessor, a display module, an impedance testing unit, a temperature sensor, a photoacoustic cavity, an optical substrate and transparent colloid. The blood glucose monitor is used for improving detection precision, can also be used for detecting impedance, temperature and other signals, corrects data, and avoids influences of the surrounding environment.

Description

technical field [0001] The invention relates to the field of blood sugar level detection, in particular to a wearable non-invasive dynamic blood sugar monitor based on photoacoustic spectrum characteristics. Background technique [0002] Diabetes mellitus or diabetes mellitus is a long-term metabolic pathological state in which blood glucose levels fluctuate beyond the normal range (90-120 mg / dl). According to the "Diabetes Map" issued by the International Diabetes Federation, it is estimated that nearly 114 million adults in the country suffer from diabetes, accounting for 8.3% of the total population (1.382 billion). By 2030, this indicates that 178 million people will suffer from diabetes. Diabetes care expenditures are projected to account for 10.8% of total global health expenditures (US$54.8 billion) in 2013, and by 2035 spending on diabetes will amount to US$627 billion. [0003] Diabetics should check their blood sugar levels daily to avoid hyperglycemic / hypoglycemi...

AI Technical Summary

Problems solved by technology

[0007] In view of the above-mentioned prior art, the purpose of the present invention is to provide a non-invasive measuring instrument for medically detecting the blood sugar level of diabetic patients, which aims to solve the problem of the single detection structure of the existing non-invasive blood glucose meter, the lack of necessary measurement compensation and correction, and when When individual differences occur, the working accuracy is greatly affected by the environment, and there are technical problems such as large deviations between the true blood glucose value and the measured value; in addition, the existing blood glucose meters still have technical problems such as non-portability, low stability and poor versatility

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