Reaction Processor Alignment and Thermal Cycling
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Solution Overview
Problem
Current reaction processors for PCR lack efficient workability due to difficulties in quickly and accurately aligning and heating reaction processing vessels, as well as effectively managing thermal cycles and sample movement within the reaction process.
Innovation Solution
A reaction processor design that includes a vessel installation unit, a heater system with adjustable temperature regions, a vessel alignment mechanism, and a housing with a cover that can be opened and closed to align the reaction processing vessel with heaters, along with a pump system for pressure control and a fluorescence detector for real-time monitoring, allowing for improved alignment and thermal cycle management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a reaction processing vessel is quickly installed inside the housing, then the workability and reaction start time are improved, but the alignment precision between the vessel and heater may deteriorate
Solution Approach 1:
The vessel alignment mechanism performs preliminary alignment of the reaction processing vessel with the heater before the actual heating process begins. This preliminary action ensures that when the vessel is quickly installed, it is already pre-positioned correctly, thus maintaining alignment precision while enabling fast reaction start time.
Solution Approach 2:
The vessel alignment mechanism acts as an intermediary between the vessel installation unit and the heater. It mediates the positioning process by automatically adjusting the vessel position to match the heater's location, thereby resolving the conflict between quick installation and precise alignment.
2Adaptability or versatility
If multiple temperature regions are maintained for thermal cycling, then the PCR process capability is improved, but the device complexity increases
Solution Approach 1:
The heater system is segmented into multiple independent heating zones, each capable of maintaining different temperatures. This segmentation allows the system to perform complex thermal cycling for PCR while keeping each individual heating element relatively simple, thus managing overall device complexity.
Solution Approach 2:
The heater system is designed with multi-functionality where a single integrated heating assembly can perform multiple temperature maintenance functions simultaneously. This universal design reduces device complexity compared to having separate heating systems for each temperature region.
3Ease of operation
If the cover portion is designed to open and close for vessel installation, then the ease of operation is improved, but the alignment time may increase
Solution Approach 1:
The vessel alignment mechanism performs preliminary alignment as the cover portion is being closed, so that by the time the cover is fully closed, the vessel is already in its correct position. This eliminates post-installation alignment time while maintaining easy operation through the openable cover design.
Solution Approach 2:
The alignment process continues throughout the cover closing action, making the useful action of alignment continuous rather than separate. This integrates alignment with the existing cover opening/closing operation, preventing additional time loss while maintaining ease of operation.
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
Enhances workability by ensuring precise alignment and efficient thermal cycling, improving the PCR process through automated alignment and real-time monitoring, thereby increasing the reliability and efficiency of DNA amplification.
Implementation Method 1
a heater for adjusting the temperature of the channel of the reaction processing vessel
Implementation Method 2
an elastic member that allows the reaction processing vessel to be in close contact with the heater when the cover portion is in the closed state
Implementation Method 3
a pump that adjusts the pressure inside the channel of the reaction processing vessel in order to move and stop the sample inside the channel
Data Source
AI summary
A reaction processor includes: a vessel installation unit for installing a reaction processing vessel provided with a channel formed in a substrate; a high temperature heater and a medium temperature heater for adjusting the temperature of the channel of the reaction processing vessel; a vessel alignment mechanism for adjusting the position of the reaction processing vessel 10; and a housing that has a housing main unit and a cover portion capable of being opened and closed with respect to the housing main unit and that houses the vessel installation unit, the high temperature heater, the medium temperature heater, and the vessel alignment mechanism. In conjunction with the state of the cover portion being changed from an open state to a closed state, the vessel alignment mechanism aligns the reaction processing vessel such that the reaction processing vessel can be heated by the high temperature heater and the medium temperature heater.