Sealed Sampling Detection Tube for Multi-Target Testing
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Solution Overview
Problem
Existing sampling detection devices require complex operation and have poor batch detection efficiency due to the need for manual addition of samples into sampling holes, leading to inefficiencies and potential contamination.
Innovation Solution
A sampling detection device comprising an outer tube with a reaction liquid holding chamber and a main body holding chamber, an inner tube with a squeezing part and test strip mounting part, and a detachable tube cover, allowing for easy sample addition and multi-target detection through a simple, sealed process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual addition of samples into sampling holes is used, then detection can be performed, but operation becomes complex and batch detection efficiency deteriorates
Solution Approach 1:
Multiple test strips are arranged side by side within a single detection tube, merging multiple detection functions into one integrated device. This allows simultaneous detection of multiple targets from a single sample addition, improving batch detection efficiency while maintaining operational simplicity
Solution Approach 2:
The detection tube is designed to accommodate multiple test strips with different detection targets, making the device universal for detecting various analytes. The single tube structure serves multiple detection purposes, eliminating the need for separate operations for each target
2Productivity
If multiple test strips are arranged side by side, then batch detection capability is improved, but device structure becomes complex
Solution Approach 1:
Multiple test strips are nested within a single detection tube structure. The test strips are arranged vertically or radially inside the tube, with each strip occupying a specific position. This nesting approach enables batch detection while maintaining a compact, unified external structure that does not appear complex
Solution Approach 2:
The detection tube uses a flexible membrane structure that can accommodate multiple test strips while maintaining structural integrity. The membrane allows for reagent penetration and liquid flow while keeping the overall device structure simple and manageable
3Ease of operation
If sampling holes are used for sample addition, then sample input is possible, but contamination risk increases and operation becomes difficult
Solution Approach 1:
The traditional sampling hole structure is replaced by an open tube design where the sample is added directly into the tube. This extraction of the hole concept eliminates the complexity of precise hole alignment and reduces contamination risk by providing a larger, more accessible sample input area
Solution Approach 2:
The detection tube acts as an intermediary container that receives the sample and directs it to the test strips. This intermediate structure controls the sample flow path, preventing environmental contamination while simplifying the sample addition process
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 one-time sampling and rapid detection of multiple targets with high efficiency, preventing environmental contamination and improving detection accuracy by ensuring complete elution and immersion of test strips.
Implementation Method 1
When an end of the dry nitrocellulose is immersed in the sample, the sample moves forward along the membrane due to capillary action
Implementation Method 2
When moved to the zone where the antibody is fixed, a corresponding antigen in the sample specifically binds to the antibody
Data Source
AI summary
A sampling detection device includes an outer tube, an inner tube, and a tube cover, where the outer tube includes a reaction liquid holding chamber and a main body holding chamber that are communicated with each other; an end of the main body holding chamber is open; a side wall of the main body holding chamber includes a transparent structure; the inner tube includes a squeezing part and a test strip mounting part; the outer tube is configured to hold the inner tube; the test strip mounting part is located inside the main body holding chamber; the squeezing part is inserted into the reaction liquid holding chamber; the squeezing part cooperates with an inner wall of the reaction liquid holding chamber to form a gap; the tube cover is detachably connected to the outer tube and configured to close or open an open side of the main body holding chamber.