Urine Test Device Moisture Sealing Mechanism
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Solution Overview
Problem
Existing urine test devices face challenges in preventing reagent part deterioration due to moisture absorption, often requiring special test papers or complex mechanisms that increase costs and complicate the device.
Innovation Solution
A urine test device with a simple configuration that includes a conveying mechanism, a supply mechanism with an accommodating chamber and a discharge unit, and a cover that seals the accommodating chamber and discharge unit against outside air, preventing moisture entry and reagent deterioration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cover is added to seal the accommodating chamber and discharge unit, then moisture protection is improved, but device complexity increases
Solution Approach 1:
The sealing function is segmented into modular components: a cover member that attaches to the discharge unit, and a sealing member that creates the actual seal between the cover and accommodating chamber. This segmentation allows the sealing system to be added as a discrete module without redesigning the entire device.
Solution Approach 2:
A sealing member acts as an intermediary element between the cover member and the accommodating chamber. This sealing member (such as a gasket or O-ring) provides the actual moisture barrier while allowing the cover structure to remain simple and easily attachable to existing device components.
2Reliability
If special mechanisms are incorporated to prevent moisture absorption, then reagent protection is improved, but manufacturing cost increases
Solution Approach 1:
The sealing member is designed to be automatically positioned and sealed when the cover member is attached to the discharge unit. The act of closing the cover itself activates the sealing function without requiring separate actuators, sensors, or control systems, thereby reducing manufacturing complexity and cost.
Solution Approach 2:
The sealing member utilizes flexible materials such as elastomeric gaskets or thin film seals that can conform to the mating surfaces of the accommodating chamber and cover. These flexible sealing elements are inexpensive to manufacture and provide effective moisture protection without requiring complex rigid sealing structures.
3Reliability
If test papers are removed and stored separately to prevent deterioration, then reagent protection is improved, but operation convenience deteriorates
Solution Approach 1:
The sealing function is merged with the existing discharge unit structure. The cover member attaches directly to the discharge unit, combining the test paper discharge function with the moisture protection function in a single integrated component, thereby maintaining operational convenience while providing continuous protection.
Solution Approach 2:
The cover member is designed with asymmetric attachment features that allow it to be easily attached in the correct orientation but prevent removal or attachment in wrong orientations. This asymmetric design ensures proper sealing while maintaining simple operation through intuitive attachment and removal.
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 device effectively prevents reagent part deterioration due to moisture with a straightforward design, eliminating the need for special measures like removing and storing test papers separately, and allowing for easy integration with existing devices.
Implementation Method 1
the reagent part may deteriorate due to the reagent part on the test paper absorbing moisture in an atmosphere (that is, moisture absorption)
Data Source
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AI summary
A urine test device includes: a conveying mechanism configured to convey a test paper provided with a reagent unit; a supply mechanism that includes an accommodating chamber capable of accommodating a plurality of test papers, a take-out unit configured to take out a test paper from the accommodating chamber and a discharge unit configured to discharge the test paper, and that is configured to sequentially supply the test paper to the conveying mechanism by discharging the test paper from the discharge unit; the conveying mechanism configured to receive the test paper from the supply mechanism, and convey the test paper to a deposition position to which a sample is deposited or a vicinity thereof; and a cover configured to cover the accommodating chamber and the discharge unit, and seal the take-out unit against outside air.