Noninvasive blood glucose measurement device and method

Abstract

The invention discloses a noninvasive blood glucose measurement device and method. The device mainly comprises a central processing unit and an infrared blood glucose measurement unit. Infrared signals, penetrating a detection part or reflected by the detection part, in wavelength insensitive to blood glucose value variation and infrared signals in wavelength low in glucose molecular absorption and weak in water molecular interference are converted into voltage signals, and the voltage signals are subjected to signal data processing to calculate a blood glucose value, so that influences of background interference signals can be effectively inhibited, measured data instability caused by a near-infrared light absorption effect of water molecules is eliminated, and precision in noninvasive blood glucose measurement is improved. By fusion of the blood glucose values measured according to an infrared transmission method, an infrared reflection method and an energy conservation method, the final blood glucose value is obtained finally, complementation of the three measurement methods is realized, and precision in blood glucose measurement is further improved.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a noninvasive blood sugar measurement device and method. Background technique [0002] Self-monitoring of blood glucose concentration generally requires collection of blood samples, which is likely to cause physical pain and risk of infection for patients. Therefore, invasive measurement methods limit the frequency of blood glucose measurement to a large extent, which is not conducive to the realization of precise management. The non-invasive blood glucose concentration measurement method can reduce the pain of each blood sampling measurement for patients, increase the number of measurements, improve the accuracy of blood glucose control, and reduce the cost of a single measurement. [0003] At present, the non-invasive detection methods of blood glucose concentration mainly include infrared spectroscopy, energy metabolism conservation method, polarization met...

AI Technical Summary

Problems solved by technology

The advantage of this method is that it can use general-purpose sensors and is easy to integrate, small, light, non-invasive, low cost, and easy to implement. The disadvantage is that it is sensitive to the environment and the temperature and humidity of the human body surface, which may easily lead to large deviations.

At present, most of the non-invasive blood glucose detectors implemented by this technology have not solved the problem of temperature and humidity sensitivity, resulting in inaccurate test data.

Images