Illumination Sequencing for Accurate Noninvasive Glucose Spectroscopy
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Solution Overview
Problem
Current non-invasive blood glucose testing methods face challenges in accurately separating spectral signals from skin tissue components, leading to low detection accuracy and inability for continuous home monitoring.
Innovation Solution
A method and system utilizing infrared and ultraviolet light sources to irradiate skin areas, capturing distribution and spectral data through fluorescence spectroscopy, enabling separation of analyte signals from skin components using a convolutional neural network model.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single light source is used for spectral testing, then the device complexity is reduced, but the measurement precision of blood glucose detection deteriorates
Solution Approach 1:
The illumination system is segmented into multiple independent light sources, each emitting at specific wavelengths (e.g., 800-1000nm for glucose distribution, 300-390nm for fluorescence excitation). This segmentation allows each light source to target specific spectral characteristics of glucose and skin components, enabling precise separation and measurement of glucose signals from interfering tissue signals.
Solution Approach 2:
The multi-wavelength illumination system serves multiple functions: it maps glucose distribution patterns, excites fluorescence signals, and captures absorption spectra simultaneously. By integrating these functions into a single testing system, the patent achieves high measurement precision without proportionally increasing device complexity.
2Device complexity
If spectral signals from skin tissue components are not separated, then the detection process is simplified, but the measurement precision of blood glucose testing deteriorates
Solution Approach 1:
The patent introduces fluorescence signal as an intermediary marker that specifically indicates glucose presence and concentration. By exciting fluorescence at 300-390nm and detecting the emitted signal, the system creates a indirect but specific measurement pathway for glucose that separates it from the complex background of skin tissue absorption signals.
Solution Approach 2:
The system exploits changes in spectral parameters across different wavelengths to separate glucose signals from skin components. By analyzing absorption characteristics at 800-1000nm and fluorescence emission at specific wavelengths, the system identifies unique spectral fingerprints of glucose that differ from surrounding tissue, enabling precise signal separation through multi-parameter analysis.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Achieves high-accuracy, non-invasive glucose monitoring with reduced discomfort, enabling real-time testing and miniaturized systems by distinguishing analyte signals from skin components.
Implementation Method 1
irradiating a first area of a tested object with infrared light emitted by the infrared light source, so that the first area reflects a light signal that indicates uneven distribution of the analyte in the first area
Implementation Method 2
turning on an ultraviolet light source of the illumination component, and irradiating the first area of the tested object with ultraviolet light emitted by the ultraviolet light source, so that the first area excites a light signal containing spectral data
Data Source
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AI summary
The present invention provides a method and a system for controlling an illumination component, a medium, and a device, which relate to the field of optical device control. The method includes: turning on an infrared light source of the illumination component, and irradiating a first area of a tested object with infrared light emitted by the infrared light source, so that the first area reflects a light signal that indicates uneven distribution of the analyte in the first area; turning off the infrared light source; and turning on an ultraviolet light source of the illumination component, and irradiating the first area of the tested object with ultraviolet light emitted by the ultraviolet light source, so that the first area excites a light signal containing spectral data; and turning off the ultraviolet light source.