Detection Device Gas Bubble Venting Mechanism
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Solution Overview
Problem
Traditional drug detection devices fail to accurately quantify specimens and often produce inaccurate results due to gas bubble trapping and contamination issues, making them unsuitable for non-professional use and secondary confirmations.
Innovation Solution
A detection device with a transferring chamber that includes a piston chamber and an indicating element, allowing for controlled liquid specimen transfer and activation observation, preventing inadvertent movement and contamination, and featuring a blocking element for secure operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a through hole is used for transferring liquid specimen, then liquid specimen can be transferred from collecting chamber to detecting chamber, but gas bubble may be trapped in the annular slot during operation, resulting in errors in quantified detection
Solution Approach 1:
The patent extracts the harmful gas bubbles from the liquid specimen transfer path by providing a dedicated gas venting channel that is separate from the liquid specimen transfer path. The gas venting channel allows gas bubbles to escape independently while the liquid specimen flows through its own designated path, preventing measurement errors caused by trapped gas bubbles.
Solution Approach 2:
The patent segments the transfer hole into functionally independent parts: a liquid specimen transfer path and a gas venting channel. This segmentation allows liquid and gas to be handled separately through the same physical structure, enabling accurate liquid transfer while simultaneously providing a dedicated escape route for gas bubbles.
2Loss of time
If test strips are inserted into urine specimen cup for detection, then detection can be completed in a few minutes, but the urine specimen in the cup is already contaminated by materials in the test reagent strips and cannot be used for a second confirmation
Solution Approach 1:
The patent segments the detection system into two independent parts: a collection chamber for specimen collection and a detection chamber for analysis. The transfer hole with separate liquid and gas paths connects these chambers, allowing rapid detection while preventing contamination of the collected specimen by keeping the liquid path dedicated and separate from the detection reagent area.
Solution Approach 2:
The transfer hole acts as an intermediary structure that mediates between the collection chamber and detection chamber. By providing separate liquid and gas paths within this intermediary structure, the patent enables rapid specimen transfer for detection while preventing direct contact between the specimen and contamination sources in the detection chamber.
3Speed
If excessive liquid specimen flows through the through hole, then liquid specimen can be transferred quickly, but gas bubble is generated from excessive flowing speed, blocking liquid specimen flowing and causing insufficient amount of specimen for detection
Solution Approach 1:
The gas venting channel serves as an intermediary pathway that mediates gas bubble removal during rapid liquid flow. When liquid specimen flows quickly through the transfer hole, gas bubbles are simultaneously vented through this separate channel, preventing bubble accumulation that would block the liquid flow path and ensure continuous reliable specimen delivery to the detection chamber.
Data Source
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AI summary
A detection device (100) comprises a detecting chamber (32) containing a detecting element for analyzing whether a specimen containing an analyte, and an indicating element (8) displaying whether the detection is activated. The method for using the detection device (100) is also disclosed.