Mobile Device Colorimetric Analyzer for Universal Test Strip Adaptation
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Solution Overview
Problem
Conventional bodily fluid testing systems struggle to accurately quantify analyte concentrations, especially those with different reaction color spectra, and fail to accommodate various test strip dimensions or dynamically update system parameters according to testing requirements.
Innovation Solution
A mobile device-based system that uses a reflectance-based colorimetric test strip reader with a modular test strip adapter, optical sub-system, and communication with a mobile device to measure analyte concentrations by detecting color profile changes on test strips, allowing for universal compatibility and dynamic parameter updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a stand-alone test system with fixed parameters is used, then the system structure is simple, but it cannot accommodate various test strip dimensions or dynamically update system parameters
Solution Approach 1:
The test strip adapter is designed with a universal structure that can accommodate multiple test strip dimensions and configurations. The adapter includes adjustable components and interchangeable elements that allow it to work with different test strip sizes, shapes, and orientations, making the system versatile without requiring multiple dedicated devices for each test strip type.
Solution Approach 2:
The system incorporates dynamically adjustable parameters through software control. The light source intensity, measurement timing, and analysis algorithms can be dynamically updated based on the specific test strip being used. This dynamic adaptability allows the system to optimize performance for different test strips without physical reconfiguration.
2Measurement precision
If conventional reflectance reading methods are used, then the system is cost-effective, but it cannot accurately quantitatively analyze chemistries with different reaction color spectra
Solution Approach 1:
The system employs multiple light sources with different wavelengths (e.g., red, green, blue LEDs) to illuminate the test strip. By changing the wavelength parameter of the light source, the system can selectively excite different color reactions on the test strip and capture their reflectance characteristics. This enables accurate quantitative analysis of chemistries with different reaction color spectra.
Solution Approach 2:
The system is specifically designed to detect and analyze color changes on the test strip by measuring reflectance at multiple wavelengths. The software processes the color information from multiple light sources to distinguish between different analyte reactions, enabling accurate identification and quantification of various chemistries based on their unique color spectra.
3Ease of operation
If integrated systems with external processing devices are used, then data management capability is improved, but portability and ease of operation are reduced
Solution Approach 1:
The system merges the test strip reader, light sources, sensors, and data processing capabilities into a single portable device. By integrating these components, the system eliminates the need for separate external processing devices while maintaining advanced data management and analysis functions. The mobile device interface provides user-friendly operation without requiring complex external equipment.
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 accurate, cost-effective, and universal analyte concentration measurement across different test strips, improving diagnostic monitoring and screening capabilities by transmitting data to a mobile device for display and analysis.
Implementation Method 1
a light source oriented within the housing for directing light toward the test strip receiving channel when the test strip adapter is operably coupled to the housing such that a test strip, when carried by the test strip receiving channel, is illuminated
Implementation Method 2
a light sensor oriented within the housing to sense light reflected from a test strip carried by the test strip receiving channel
Data Source
AI summary
A mobile device based multi-analyte testing analyzer for use in medical diagnostic monitoring and screening, and a method of manufacturing the same are disclosed. A reflectance based, colorimetric test strip reader for use with a mobile device having a jack plug receiving socket, said test strip reader adapted for removably receiving a test strip having a test strip longitudinal axis, comprising a housing; a jack plug operably coupled to and extending from said housing and adapted for operable coupling with said jack plug receiving socket; a test strip adapter including structure defining a test strip receiving channel; a light source oriented within said housing for directing light toward said test strip receiving channel to illuminate a test strip arranged within said test strip adapter; and a light sensor oriented within said housing to sense light reflected from a test strip carried by said test strip receiving channel.