Design a non-invasive glucose monitoring system

Abstract

This project outlines a non-invasive method for measuring glucose concentration in human blood using near-infrared optical technology. Traditionally, blood glucose levels have been measured through invasive techniques involving finger punctures, which are not only costly but also associated with pain, calluses, and an increased risk of spreading infectious diseases. unmanaged diabetes can lead to severe complications such as renal failure, liver failure, heart attacks, vision loss, or foot issues that may require amputation if not promptly diagnosed, monitored, and treated. To prevent these complications, regular monitoring of blood glucose levels is essential. To address these issues, a non-invasive glucose monitoring system is needed. The development of a non-invasive blood glucose measurement system would significantly benefit diabetic patients This study proposes a cost-effective, non-invasive glucose monitoring device using nearinfrared spectroscopy techniques, where NIR light traverses through the fingertip, it engages with glucose molecules, causing some of the NIR light to be absorbed, contingent on the blood's glucose concentration. The amount of NIR light that passes through the fingertip varies according to the blood glucose concentration. This transmitted signal is processed by Microcontroller with the output displayed on an LCD screen. Additionally, the device includes a GSM module for wireless data sharing, allowing results to be easily transmitted to doctors for review. Proteus Software is utilized to simulate testing devices and measure results. Following this, prototypes are practically implemented using various components. All test results from the main device are transmitted to a Global System for Mobile (GSM) module, which connects to the doctor’s cellphone for submission and review. The results obtained after implementation and measurement from the main device were quite satisfactory. My study demonstrates that the device achieves accuracy comparable to conventional methods while offering convenient and user-friendly operation for patients.