Cartridge Interface Module for Nucleic Acid Analysis
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Solution Overview
Problem
Current genetic testing methods for nucleic acid analysis are time-intensive and require substantial expertise, limiting their efficiency and accessibility, especially in forensic and diagnostic applications.
Innovation Solution
A cartridge interface module (CIM) integrated with a nucleic acid analyzer system that includes fluidics, PCR assembly, high voltage electrodes, and detection optics components, enabling efficient extraction, amplification, and separation of nucleic acids within a microfluidic cartridge, reducing the need for extensive user knowledge and time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional genetic testing methods are used, then comprehensive nucleic acid analysis can be performed, but the process is time-intensive and requires substantial expertise
Solution Approach 1:
The system divides the nucleic acid analysis process into discrete functional modules within a microfluidic cartridge, including sample processing, PCR amplification, and detection chambers. Each module performs a specific function independently, allowing automated sequential operation that reduces manual intervention while maintaining comprehensive analysis capabilities within a condensed timeframe
Solution Approach 2:
The microfluidic cartridge is designed with integrated fluidic channels and automated sample handling mechanisms that self-regulate reagent delivery, mixing, and waste removal. The system performs temperature cycling for PCR and fluid manipulation without requiring user intervention, enabling operation by personnel with minimal training while completing the full analysis pipeline rapidly
2Ease of operation
If traditional genetic testing methods are used, then comprehensive nucleic acid analysis can be performed, but extensive user knowledge is required
Solution Approach 1:
The patent integrates multiple complex functions including thermal cycling, fluid pumping, valve control, and optical detection into a single unified microfluidic cartridge system. This consolidation allows the sophisticated nucleic acid analysis capabilities to be housed in one self-contained unit that operates automatically, masking the underlying complexity from the user while maintaining comprehensive functionality
Solution Approach 2:
The microfluidic cartridge is designed as a universal platform that can handle various nucleic acid analysis protocols and sample types through a single interface. The integrated system performs extraction, amplification, and detection functions across different test scenarios without requiring separate equipment or specialized operational procedures, making complex analysis accessible to users with minimal training
3Productivity
If micro-liter liquid volumes are used, then analysis time is reduced, but precise fluid control is required
Solution Approach 1:
The system replaces traditional mechanical pipetting and fluid handling mechanisms with integrated microfluidic channels that use capillary action, pressure differentials, and electrophoretic forces to move and control liquids. This substitution enables precise manipulation of micro-liter volumes through passive physical principles rather than complex mechanical actuators, achieving rapid analysis with inherent fluid control precision
Solution Approach 2:
The microfluidic cartridge incorporates pneumatic control systems that use pressure differentials to regulate fluid flow through micro-channels. By controlling pressure at various points in the fluidic network, the system precisely manages reagent delivery, sample mixing, and waste removal at micro-liter volumes, enabling fast analysis cycles with accurate fluid control without complex mechanical components
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
The CIM enables rapid and user-friendly nucleic acid analysis, completing the process in less than two hours using micro-liter liquid volumes, enhancing the utility of genetic testing in various applications.
Implementation Method 1
a fluidics component, which is configured to initiate and support a liquid extraction of nucleic acids from a biological sample
Implementation Method 2
a polymerase chain reaction (PCR) assembly component, which is configured to initiate and support amplification of the extracted nucleic acids
Implementation Method 3
a high voltage electrodes component, which is configured to initiate and support separation of the amplified nucleic acids into nucleic acid fragments
Implementation Method 4
a detection optics component, which is configured to detect labeled nucleic acid fragments
Data Source
AI summary
A cartridge interface module (CIM), configured to engage with a removable microfluidic cartridge in a nucleic acid analyzer system can include a fluidics component, which is configured to initiate and support a liquid extraction of nucleic acids from a biological sample contained in the removable microfluidic cartridge. The CIM also includes a polymerase chain reaction (PCR) assembly component which can be configured to initiate and support amplification of the extracted nucleic acids. The CIM may also include a high voltage electrodes component that is configured to initiate and support separation of the amplified nucleic acids into nucleic acid fragments in a separation channel of the removable microfluidic cartridge. The CIM also includes a detection optics component that can be configured to collect, detect, and direct label nucleic acid fragments. The CIM is configured to integrate with a microfluidic chip architecture of an inserted removable microfluidic cartridge.