Method and device for calibrating non-invasive blood glucose measurements

Abstract

The present invention relates to a method and apparatus for calibrating non-invasive blood glucose measurements, and more particularly to a method for calibrating blood glucose signals measured from video images of white light reflected from the skin. The present invention provides a method and apparatus for measuring an accurate blood glucose amount in blood by extracting a basic blood glucose signal. The method may include the steps of: illuminating white light on the skin by using a white light source; filtering the white light reflected from the skin by a first wavelength filter and a second wavelength filter; The video image generated by the white light filtered by the wavelength filter is used to obtain the first signal including the blood glucose signal and the pulse signal; the first signal including the pulse signal is obtained based on the video image generated by the white light filtered by the second wavelength filter acquiring a blood glucose signal by subtracting the second signal from the first signal; and calculating a blood glucose amount in a subcutaneous blood vessel based on the acquired blood glucose signal. According to the method and device for calibrating non-invasive blood glucose measurement disclosed in the present invention, the basic blood glucose signal can be extracted in real time without collecting blood.

Description

technical field [0001] The present invention relates to a method and apparatus for correcting blood glucose measurements of subcutaneous blood vessels, and more particularly to a method and apparatus for correcting signals other than blood glucose signals by subtracting signals based on white light reflected from the skin and equipment. Background technique [0002] Generally, blood sugar refers to the glucose contained in the blood. The human body must maintain a certain amount of blood sugar to maintain life, and high blood sugar can induce diabetes. By measuring the amount of blood sugar in the blood, you can know whether a certain amount of blood sugar is maintained. In cases where measured blood sugar levels are outside the normal range, appropriate measures can be taken to maintain health. [0003] Methods of performing blood glucose measurement in a living body are generally classified into invasive methods and non-invasive methods. The invasive method refers to a...

AI Technical Summary

Problems solved by technology

However, the method for non-invasive blood sugar measurement using an image sensor has the disadvantage that an accurate blood sugar level cannot be calculated due to detected noise and blood sugar signal in reflected light

Images