Specimen Supplying Tool Projection Port Bubble Removal
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Solution Overview
Problem
Conventional specimen analyzing instruments face issues with liquid specimen retention and air bubble formation within the through-bore, leading to incomplete analysis, and existing solutions complicate the instrument structure and manufacturing process.
Innovation Solution
A specimen supplying tool with a projection portion at the outflow port directs the liquid specimen towards the analyzing instrument, preventing retention and air bubble accumulation, featuring a simple structure that simplifies manufacturing and reduces costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional through-bore structure is used, then the specimen analyzing instrument can be manufactured with simpler structure, but liquid specimen and air bubbles remain within the through-bore causing incomplete analysis
Solution Approach 1:
The through-bore is segmented into multiple sections with different cross-sectional areas. The first through-bore section has a larger cross-sectional area than the second through-bore section, creating distinct functional zones that prevent specimen retention while maintaining simple manufacturing
Solution Approach 2:
The invention transitions from a uniform cross-sectional through-bore to a variable cross-sectional through-bore structure. By changing the cross-sectional area along the flow direction, the invention eliminates dead zones where specimen and air bubbles could accumulate, achieving complete specimen delivery without complicating the overall device structure
2Reliability
If filters or other means are added to remove air bubbles, then air bubble removal is achieved, but the instrument structure becomes complicated and manufacturing becomes cumbersome and expensive
Solution Approach 1:
The invention extracts the air bubble removal function from separate components (filters, additional mechanisms) and integrates it directly into the through-bore structure itself. The variable cross-sectional area design naturally expels air bubbles through the narrowing passage, eliminating the need for separate air removal devices and simplifying manufacturing
Solution Approach 2:
The specimen delivery function and air bubble removal function are merged into a single integrated through-bore structure. The first and second through-bore sections work together as one continuous flow path that simultaneously transports liquid specimen and expels air bubbles, reducing the number of components and simplifying manufacturing
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 tool ensures complete specimen delivery without residual liquid or air bubbles, enhancing analysis accuracy and reducing manufacturing complexity and costs.
Implementation Method 1
the introduced liquid specimen is discharged from the specimen outflow port and supplied to a specimen analyzing instrument, the liquid specimen is gravitated to the projection portion, led by the projection portion, and supplied to the specimen analyzing instrument
Data Source
AI summary
A specimen supplying tool in which structure is simple, and a liquid specimen and air bubbles do not remain within a through-bore for introduction of a specimen, is provided. The specimen supplying tool includes a substrate 11 and a through-bore 13 provided in the substrate 11. One opening of the through-bore 13 is a specimen inflow port, and the other opening of the through-bore 13 is a specimen outflow port. The specimen supplying tool further includes a projection portion 14 projecting from a part p of a marginal part of the specimen outflow port. A liquid specimen is introduced from the specimen inflow port to the through-bore 13. When the introduced liquid specimen is discharged from the specimen outflow port, and supplied to a specimen analyzing instrument, the liquid specimen is drawn to the projection portion 14, led by the projection portion 14, and supplied to the specimen analyzing instrument.