Liquid Channel Device with Press-Operated Flexible Floor
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Solution Overview
Problem
Conventional liquid channel devices require separate devices for inducing flow and lack the ability to easily open or close liquid channels, making them inconvenient for detecting and analyzing target components.
Innovation Solution
A liquid channel device with a base plate and cover plate configuration, featuring opening and closing sections that allow for easy control of liquid flow without external devices, utilizing convex sections and spacers to manage the flow and prevent reverse flow, and a production method that includes forming liquid chambers and channels on the base plate and laminating the cover plate for efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional liquid channel devices use separate micropumps or rotating disk devices to induce liquid flow, then liquid can be transported through channels, but device complexity increases and ease of operation decreases
Solution Approach 1:
The patent merges the flow induction function into the base plate structure itself by forming liquid chambers with flexible floors that can be pressed to transport liquid. This eliminates the need for separate micropumps or rotating disk devices, thereby reducing device complexity while maintaining ease of operation.
Solution Approach 2:
The base plate's liquid chambers are designed with flexible floors that can be directly pressed to induce liquid flow. This self-service mechanism allows the device to transport liquid without requiring external flow-inducing devices, simplifying the overall system while improving ease of operation.
2Adaptability or versatility
If conventional liquid channel devices lack opening and closing mechanisms, then device complexity is reduced, but the ability to control liquid flow and detect target components is impaired
Solution Approach 1:
The opening and closing functions are merged into the base plate structure through flexible floors in liquid chambers. By pressing specific regions of the base plate, liquid channels can be opened or closed without requiring separate control mechanisms, thereby increasing adaptability while minimizing added complexity.
Solution Approach 2:
The liquid chambers are designed with flexible floors that can dynamically change their state between open and closed positions. This dynamic structure allows the device to adapt liquid flow paths as needed, enhancing versatility without requiring complex mechanical control systems.
3Ease of manufacture
If external devices are used to induce liquid flow, then liquid transport is achieved, but cost increases and ease of manufacture decreases
Solution Approach 1:
The patent combines the flow induction function directly into the base plate manufacturing process. Liquid chambers with flexible floors are formed as integral parts of the base plate, eliminating the need to manufacture and assemble separate micropumps or rotating disk devices. This simplifies manufacturing while reducing overall device complexity.
Solution Approach 2:
The base plate is designed to perform flow induction as an inherent function of its structure. By forming liquid chambers with pressable floors during base plate manufacturing, the device achieves liquid transport capability without requiring additional external components, thereby easing manufacture and reducing complexity.
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 easy and smooth liquid flow without external flow-inducing devices, allowing for precise control of liquid channel states, enhancing the convenience and accuracy of detection and analysis processes.
Implementation Method 1
the cover plate have a first base layer which forms the surface of the cover plate, a strongly adhered layer which is formed to the inside of the first base layer, a second base layer which is formed to the inside of the strongly adhered layer, and a weakly adhered layer which is formed to the inside of the second base layer and is adhered to the channel formation surface
Implementation Method 2
the liquid transport section is operated by external pressing on a floor of the liquid chamber or to the cover plate in the area corresponding to the liquid chamber
Implementation Method 3
the cover plate have a first base layer which forms the surface of the cover plate, a strongly adhered layer which is formed to the inside of the first base layer, a second base layer which is formed to the inside of the strongly adhered layer, and a weakly adhered layer which is formed to the inside of the second base layer and is adhered to the channel formation surface
Data Source
AI summary
The present invention relates to a liquid channel device capable of easily opening the liquid channel from the closed mode, including a base plate in which a liquid channel, through which a liquid containing at least one of a sample and a reagent, flows, and a metering chamber for holding the liquid, are formed to at least one side thereof, the metering chamber has a liquid transport section for transporting the liquid inside the chamber downstream, and this liquid transport section is operated by means of external pressing on a cover plate in the area opposite the metering chamber.