Optical Analyte Testing with Bandpass Filtering for Non-Invasive Glucose
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Solution Overview
Problem
Existing blood glucose testing methods are invasive, require disposable needles, are prone to errors due to test strip deterioration, and involve complex operations, while non-invasive methods are cumbersome and require phase adjustments.
Innovation Solution
A system utilizing a light source and imaging spectrum detection apparatus with bandpass filters and a controller to obtain analyte distribution and spectral data non-invasively through fluorescence spectroscopy, enabling easy, real-time testing without electrochemical reactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If invasive blood sampling method is used, then measurement accuracy is improved, but user comfort deteriorates and resource waste increases
Solution Approach 1:
The patent replaces the mechanical invasive blood sampling system with an optical detection system. Instead of using needles to extract blood and test strips with electrochemical reactions, the invention uses light sources to illuminate the measurement area and imaging spectrum detection apparatus to capture optical signals, thereby eliminating the need for physical penetration and disposable materials.
Solution Approach 2:
The patent introduces optical signals as an intermediary to measure blood glucose levels. Light interacts with the tissue and blood components, and the modified optical signals carry information about glucose concentration without requiring direct contact with blood samples, thus avoiding the harmful effects of invasive sampling.
2Measurement precision
If test strip method is used, then measurement is achieved, but preservation difficulty and deterioration increase
Solution Approach 1:
The patent eliminates the test strip component entirely by replacing the electrochemical measurement system with an optical detection system. The imaging spectrum detection apparatus directly measures optical properties of the measurement area, removing the need for external test strips that require preservation and are prone to deterioration.
3Measurement precision
If conventional blood glucose meter is used, then measurement function is provided, but operation complexity increases due to multiple steps
Solution Approach 1:
The patent merges the illumination function and detection function into a single integrated system. The light source and imaging spectrum detection apparatus work together as one unit, eliminating the need for separate steps of applying test strips, inserting needles, and manual operations, thereby simplifying the overall testing process.
Solution Approach 2:
The system performs automatic measurement without requiring manual intervention for sample collection or reagent application. The optical system automatically illuminates the measurement area, captures the optical signals, and processes the data to provide blood glucose values, making the operation as simple as positioning the device.
4Object-affected harmful factors
If non-invasive method is used, then user comfort is improved, but operation complexity and phase adjustment requirements increase
Solution Approach 1:
The patent extracts and removes the complex phase modulation components from the optical system. Instead of using phase modulators and complex optical path arrangements, the invention employs a straightforward illumination and detection configuration that directly captures spectral information without requiring phase adjustments or complex optical manipulations.
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
Facilitates non-invasive, cost-effective, and miniaturized blood glucose testing with high accuracy by excluding non-analyte influences and providing real-time results, reducing resource waste and user discomfort.
Implementation Method 1
A system utilizing a light source and imaging spectrum detection apparatus with bandpass filters and a controller to obtain analyte distribution and spectral data non-invasively through fluorescence spectroscopy
Implementation Method 2
a first bandpass filter is disposed between the light source and the specified area, the shape of the first bandpass filter includes a ring, the first bandpass filter allows light within the preset wavelength range to pass through and light outside the preset wavelength range to be cut off
Data Source
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AI summary
The present disclosure describes a system and an apparatus for testing an analyte by means of optical analysis. The system for testing the analyte includes a light source (201), an imaging spectrum detection apparatus (202), and a controller (203). The controller (203) establishes an electric connection or communication connection with the light source (201) and the imaging spectrum detection apparatus (202) separately, and the light source (201) is capable of providing light within a preset wavelength range; and under the effect of the controller (203), the light source (201) provides the light within the preset wavelength range to a specified area (100), and the imaging spectrum detection apparatus (203) images the specified area (100) to obtain a corresponding image and/or spectral data.