Flexible Tube Assembly with Filter Tip for Controlled Gene Sample Discharge
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Solution Overview
Problem
Existing sample tubes for diagnostic kits are difficult to use due to rigid materials, large or small discharge holes, and require strong force for sample discharge, leading to inaccurate results and complex gene extraction processes.
Innovation Solution
A tube assembly with a flexible material, a filter tip having a specific discharge hole and distance ratio, and a discharge pipe design that allows controlled sample discharge as water drops, preventing evaporation and blockages, and facilitating easy sample loading and filtration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid material is used for the tube, then the tube structure is stable, but it is difficult to load the sample and requires strong force for discharge
Solution Approach 1:
The tube is made of flexible material that can be easily compressed and deformed. When the user squeezes the tube, the flexible wall allows volume reduction to discharge sample, and when released, the tube returns to its original shape, enabling easy and controlled sample loading and discharge without requiring strong force
2Ease of operation
If the discharge hole size is too large, then the sample can be discharged easily, but the sample is dripped in the form of water streams leading to inaccurate results
Solution Approach 1:
The discharge hole diameter is precisely controlled within a specific range (1.377-1.683 mm) to optimize the discharge behavior. This parameter optimization ensures the sample discharges in controlled drops rather than streams, achieving both ease of discharge and measurement precision for accurate diagnostic results
3Measurement precision
If the discharge hole size is too small, then the sample discharge is controlled, but the sample can be discharged only when strong force is applied
Solution Approach 1:
The flexible tube material allows the user to compress the tube volume by squeezing, which builds pressure to discharge the sample through the small discharge hole without requiring excessive force. The flexibility enables controlled pressure application, making discharge easy while maintaining precision
4Reliability
If a complex gene extraction process is performed, then pure DNAs or RNAs can be acquired, but much time is consumed and expert manpower is necessary
Solution Approach 1:
The tube integrates multiple functions: sample storage, mixing (via vortexing), and filtration (via integrated filter). By combining these functions in one device, the complex multi-step gene extraction process is simplified, reducing both time and expertise requirements while maintaining reliability for molecular diagnosis
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
Enhances the precision and reliability of sample loading and gene extraction by allowing controlled, accurate sample discharge and filtration, reducing contamination and simplifying the diagnostic process.
Implementation Method 1
a filter tip 200 having a tip 210 including an insertion part 211 inserted into the hole H of the tube 100
Implementation Method 2
a discharge pipe 213 connected to the expansion part 212 and acting as a passage, through which a solution S stored in the interior of the tube 100 is discharged
Data Source
AI summary
The present invention relates to a tube assembly for dripping. According to an embodiment, a tube assembly for dripping includes a tube (100) having a hole (H) at an upper portion thereof, and a filter tip (200) having a tip (210) including, an insertion part (211) inserted into the hole (H) of the tube (100) and, an expansion part (212) connected to the insertion part (211) and having a diameter that is larger than that of the hole (H), and a discharge pipe (213) connected to the expansion part (212) and acting as a passage, through which a solution (S) stored in the interior of the tube (100) is discharged, wherein a discharge adjusting part (213a) having a discharge hole (h) having a predetermined diameter (d1) is formed in the interior of the discharge pipe (213) that is spaced apart from a lower end of the discharge pipe (213) by a predetermined distance.