Multi-Sensor Light Scattering Measurement for Blood Glucose Analysis
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Solution Overview
Problem
Existing methods for measuring glucose concentration in blood using light scattering are limited by the inability to accurately determine the form of light scattering due to reliance on a single sensor for rectilinear light intensity measurement.
Innovation Solution
A measurement device and method that utilize a plurality of sensors arranged regularly to detect measurement light of a predetermined wavelength band, analyzing both the rectilinearity of the light and optical distance from the light source to improve the accuracy of light scattering measurement in the body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single sensor is used to measure rectilinear light intensity, then the measurement device is simple, but the ability to ascertain light scattering form is insufficient
Solution Approach 1:
The detection function is segmented across multiple sensors arranged in specific patterns (linear, circular, or two-dimensional arrays). Each sensor detects light at different positions, allowing the system to analyze light scattering form by comparing signals from multiple segmented detection points rather than relying on a single sensor.
Solution Approach 2:
The patent transitions from one-dimensional single-point detection to multi-dimensional spatial detection by arranging sensors in two-dimensional patterns. This dimensional expansion enables the system to capture spatial distribution information of scattered light, thereby ascertaining the form of light scattering in addition to intensity measurements.
2Measurement precision
If multiple sensors are arranged regularly to detect measurement light, then light scattering measurement precision is improved, but device complexity increases
Solution Approach 1:
The multiple sensors serve multiple functions simultaneously: they detect both rectilinear transmitted light and scattered light, measure light intensity and spatial distribution, and enable calculation of scattering coefficients. This multi-functionality justifies the increased device complexity by providing comprehensive measurement capabilities from a single sensor array configuration.
Solution Approach 2:
The patent combines multiple sensors into an integrated detection unit with a unified analysis approach. By merging the detection functions of multiple sensors and processing their signals collectively through a single analysis system, the patent achieves improved measurement precision while managing device complexity through systematic integration rather than separate independent measurement systems.
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
Enables more precise measurement of light scattering in the body, enhancing the accuracy of glucose concentration and other blood component measurements.
Implementation Method 1
measuring a spectral distribution or light intensity using optical characteristics such as light absorption
Implementation Method 2
measuring a change in light scattering using the fact that a scattering coefficient of a living body tissue changes due to a change in a glucose concentration in blood
Data Source
AI summary
[Object] To measure a form of light scattering in a body more simply.[Solution] A measurement device according to the present disclosure includes: a light source configured to emit at least one kind of measurement light belonging to a predetermined wavelength band toward a measurement region formed by at least a part of a living body; a detection unit configured such that a plurality of sensors are arranged regularly in a predetermined disposition and the measurement light emitted from the light source and transmitted through the living body is detected by the plurality of sensors; and an analysis unit configured to analyze at least one of rectilinearity of the measurement light in the living body and an optical distance from the light source using a detection result of the measurement light detected by the detection unit.