Detachable Dual-Chamber Liquid Sample Collection for Confirmatory Testing
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Solution Overview
Problem
Existing urine detection apparatuses face issues with sample contamination and the need for expensive, complex mechanisms to separate initial and confirmatory detection samples, requiring multiple handling and storage steps that increase costs and risks of spillage.
Innovation Solution
A dual-chamber apparatus with detachable first and second chambers allows for initial and confirmatory sample collection and detection, enabling fluid communication and separation through a connecting channel with a sealing element, facilitating independent handling and storage of samples for confirmatory testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a piston structure is used to separate collected samples from tested samples, then sample separation is achieved, but the apparatus becomes expensive and difficult to operate due to the need for great force to push the piston
Solution Approach 1:
The cup is divided into a collection chamber and a detection chamber that are separable from each other. The collection chamber can be detached from the detection chamber after sample collection, eliminating the need for a piston structure. This segmentation allows easy separation of collected samples from tested samples without requiring complex mechanical components.
Solution Approach 2:
The invention extracts the separation function from a complex piston mechanism and simplifies it to a detachable cup structure. The collection chamber is removed as a separate component after use, achieving sample separation through simple detachment rather than forced piston movement.
2Reliability
If the entire apparatus is sent to a confirmatory detection agency for subsequent confirmatory detection, then confirmatory detection can be performed, but costs increase due to the need for large low-temperature storerooms and the risk of liquid spillage
Solution Approach 1:
The invention extracts only the necessary component (collection chamber with remaining samples) for confirmatory detection and sends it separately to the detection agency. This eliminates the need to transport the entire apparatus, reducing storage space requirements and minimizing the risk of liquid spillage during transit.
Solution Approach 2:
The apparatus is segmented into transportable components, where the collection chamber can be independently removed and sent for confirmatory detection. This segmentation allows flexible handling and storage of different components based on their specific requirements.
3Productivity
If test reagents are present in the detection chamber, then initial detection can be performed, but sample contamination occurs when the entire apparatus is sent for confirmatory detection
Solution Approach 1:
The detection chamber and collection chamber are segmented as separate components. After initial detection in the detection chamber, the collection chamber containing the remaining samples can be detached and sent for confirmatory detection without exposure to test reagents, thus maintaining sample integrity.
Solution Approach 2:
The invention extracts the collection chamber from the detection chamber after initial detection, removing the source of potential contamination (test reagents in the detection chamber) from the samples that need to be preserved for confirmatory detection.
Data Source
AI summary
The present invention provides an apparatus for collecting and detecting liquid samples comprising a first chamber and a second chamber. The first chamber is used for collecting liquid samples for initial detection, and the second chamber is used for collecting liquid samples for second confirmatory detection. The first chamber and second chamber of the apparatus are detachable. When a second confirmatory detection is necessary, the second chamber can be separated from the first chamber, and then sent to a detection agency for confirmatory detection. It can avoid the contamination of liquid samples caused by contacting with test strip of a traditional apparatus; thus, it can effectively reduce the space required for storing liquid samples and greatly reduce the risk of leakage of liquid sampled during transportation.