Microfluidic Cartridge PCR Integration for On-Demand Diagnostics
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Solution Overview
Problem
Diagnostic analyses in the medical diagnostics industry are bottlenecked by the need for multiple steps requiring different skill levels and equipment, leading to delays, high costs, and inefficiencies in sample processing and detection, particularly for polynucleotide analysis.
Innovation Solution
An integrated apparatus and microfluidic cartridge system that automates sample preparation, PCR, and detection processes, using a receiving bay, heat sources, detectors, and processors to handle biological samples efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple separate diagnostic steps are performed using different specialist equipment, then detection precision is improved, but device complexity and processing time increase
Solution Approach 1:
The patent combines multiple separate diagnostic functions (sample preparation, PCR amplification, and detection) into a single integrated microfluidic cartridge system. The cartridge contains all necessary components including reaction chambers, fluidic channels, and detection elements, eliminating the need for multiple separate specialist equipment while maintaining diagnostic precision through automated integration of all steps
Solution Approach 2:
The microfluidic cartridge is designed as a universal platform that performs multiple diagnostic functions within a single device. It can handle sample lysis, nucleic acid extraction, PCR amplification, and fluorescence detection all in one cartridge, making the system multi-functional and reducing dependence on multiple specialized instruments
2Measurement precision
If multiple separate diagnostic steps are performed, then detection precision is improved, but loss of time increases due to batch processing
Solution Approach 1:
The integrated microfluidic system enables continuous automated processing where sample preparation, amplification, and detection occur in seamless succession without batch waiting periods. The automated fluidic system continuously moves samples through different reaction zones, eliminating idle time between steps and enabling on-demand processing
3Measurement precision
If specialist equipment is used for PCR and detection, then measurement precision is improved, but ease of operation deteriorates due to skilled operator requirements
Solution Approach 1:
The microfluidic cartridge is designed to perform all complex diagnostic operations automatically without requiring skilled operators. The integrated system self-manages sample processing, reagent delivery, thermal cycling for PCR, and fluorescence detection, reducing operation to simple cartridge insertion and result retrieval while maintaining high detection precision through automated control
4Measurement precision
If samples are sent to external specialist locations, then measurement precision is improved, but loss of time increases due to shipping and transportation
Solution Approach 1:
The patent extracts the specialized detection capabilities from external specialist laboratories and embeds them directly into the point-of-care microfluidic cartridge. This brings high-precision PCR and fluorescence detection equipment to the local setting, eliminating the need to ship samples externally while maintaining detection precision through integrated automated processing
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 on-demand, automated processing of biological samples with reduced steps and equipment complexity, enabling rapid and efficient polynucleotide detection and analysis.
Implementation Method 1
at least one heat source thermally coupled to the cartridge and configured to apply heat to one or more selected regions of the cartridge at one or more selected times
Data Source
AI summary
This patent application describes an integrated apparatus for processing polynucleotide-containing samples, and for providing a diagnostic result thereon. The apparatus is configured to receive a microfluidic cartridge that contains reagents and a network for processing a sample. Also described are methods of using the apparatus.