Reconfigurable Point-of-Care Diagnostics System
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Solution Overview
Problem
Current point-of-care diagnostic devices are limited in their ability to perform multiple diagnostic operations and often lack active electronic circuitry for sophisticated detection methods like dielectrophoresis (DEP) technology, restricting their versatility and analytical capabilities.
Innovation Solution
A reconfigurable point-of-care system that includes an analysis device with detection components, a microfluidic chip, and a reader unit with a processor to select diagnostic methods based on identification information, allowing for the reconfiguration of interface components to perform various diagnostic tests such as fluorescence analysis, colorimetric analysis, and DEP technology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single-type diagnostic device is used, then the device complexity is reduced and manufacturing cost is lowered, but the adaptability and versatility of the diagnostic system deteriorates
Solution Approach 1:
The reader unit is designed with a reconfigurable interface device that can perform multiple diagnostic methods (fluorescence detection, colorimetric analysis, dielectrophoresis) through software control and dynamic component reconfiguration, allowing a single device to replace multiple specialized devices
Solution Approach 2:
The interface device dynamically reconfigures its components based on the selected diagnostic method, changing electrical connections, signal routing, and processing parameters in real-time to adapt to different assay requirements without physical hardware changes
2Adaptability or versatility
If multiple diagnostic devices are used to provide various diagnostic methods, then the adaptability and analytical capabilities are improved, but the device footprint and system complexity increase
Solution Approach 1:
Multiple diagnostic functions (fluorescence reader, colorimetric analyzer, DEP controller) are merged into a single integrated reader unit that shares common hardware resources such as microprocessor, memory, display, and interface circuits, thereby reducing the overall equipment footprint while maintaining diverse diagnostic capabilities
Solution Approach 2:
The reader unit serves as a universal platform that can perform various diagnostic operations through software programming and interface reconfiguration, eliminating the need for multiple separate specialized devices in the laboratory setting
3Measurement precision
If sophisticated detection methods like DEP technology are implemented, then the measurement precision and analytical capability are improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The interface device acts as an intermediary layer between the simple microfluidic chip and the complex diagnostic algorithms, providing standardized electrical connections and signal conditioning that enable sophisticated DEP technology implementation without requiring complex custom circuitry for each diagnostic method
Solution Approach 2:
The system achieves different detection capabilities by dynamically changing electrical parameters (frequency, voltage, impedance) controlled by the microprocessor rather than requiring different physical circuit components, allowing DEP technology to be implemented with relatively simple hardware that can be programmed for various measurement modes
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 multiple diagnostic operations and methods to be performed on a single portable device, enhancing analytical capabilities and reducing equipment footprint, making it suitable for low-cost, portable sensing applications.
Implementation Method 1
a dielectrophoresis (DEP) signal generator to apply one or more excitations signals to at least one electrode coupled to a sample interface
Implementation Method 2
one or more detection components to perform at least one diagnostic method on a sample
Implementation Method 3
colorimetric analysis
Data Source
AI summary
A reconfigurable point-of-care system, comprising an analysis device having one or more detection components to perform a diagnostic method on a sample, the sample being loaded on a microfluidic chip, wherein the analysis device provides identification information, an interface device coupled to the analysis device to provide a communication channel, and a reader unit coupled to the communication channel and having a processor to select the diagnostic method based on the identification information and reconfigure one or more components of the interface device based on the analysis device.