Noninvasive glucometer

Abstract

The invention discloses a glucometer based on a near infrared spectroscopy method for noninvasive blood glucose testing. The glucometer comprises a fixing device, an infrared light source, a sensor, a detection circuit and a power source, wherein the fixing device is configured to fix the glucometer on the surface of a tested human part; the infrared light source is configured to emit infrared light; the sensor is configured to connect the infrared light source and the detection circuit and complete photoelectric conversion; the detection circuit is configured to receive data of the sensor and calculate an output blood glucose value; and the sensor receives light spectra diffused and reflected from a dermis layer. According to the invention, near infrared light diffuse reflection detection technology is adopted; through utilizing infrared light spectrum diffuse reflection and collecting light spectrum signals diffused and reflected by the dermis layer, the noninvasive glucometer is high in suitability for different people, small in size and accurate and reliable in detection result.

Description

technical field [0001] The invention relates to the field of blood glucose detection, in particular to a noninvasive blood glucose meter. Background technique [0002] Diabetes has become a disease with a high incidence rate. According to the survey, nearly 100 million people in my country suffer from diabetes, and this number is still on the rise. The traditional blood sugar detection method has a prominent feature that the patient's blood must be obtained. However, for diabetic patients, the acupuncture wounds are more difficult to heal than non-diabetic wounds, which can easily lead to bacterial infection and complications. Therefore, those skilled in the art have done a lot of research on non-invasive blood sugar detection. Typical non-invasive blood sugar detection methods include optical methods such as near-infrared spectroscopy, mid-far infrared spectroscopy, Raman spectroscopy, photoacoustic spectroscopy, light scattering, and polarized light. Indirect methods suc...

AI Technical Summary

Problems solved by technology

However, the above-mentioned methods have low detection sensitivity, too complicated equipment or methods, large individual differences among various groups of people, etc., resulting in large errors in blood glucose detection values. Therefore, those skilled in the art are committed to developing a non-invasive blood glucose meter. Accurate results, good adaptability to different groups of people, simple device structure, small size, portable

Images