Switching Member Liquid Introduction for Specimen Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for introducing liquids into specimen treatment devices face challenges in efficiently and stably filling the connected tubes with liquids, often resulting in air bubbles and instability during the introduction process.
Innovation Solution
A method involving a switching member to manage the flow between inlet-and-outlets, using feeders to supply liquids through specific ports, and optimizing flow rates to ensure efficient and bubble-free introduction of the specimen and comparison liquids into the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If liquids are introduced into the specimen treatment device using conventional methods, then the introduction process is simple, but air bubbles are generated and the filling is unstable
Solution Approach 1:
A switching member is introduced as an intermediary component between the feeders and the specimen treatment device. This switching member manages the flow paths between multiple inlet-and-outlets, enabling stable liquid introduction by controlling which feeder connects to which inlet port at different time points, thereby preventing air bubble generation while maintaining system reliability
Solution Approach 2:
The switching member is configured to perform preliminary actions by sequentially connecting different feeders to different inlet-and-outlets before the actual specimen introduction. The system first fills the flow paths with liquids from feeders through controlled switching, ensuring that the paths are properly filled before introducing the actual specimen, which prevents air bubbles and ensures stable operation
2Reliability
If the flow path is filled with liquid before introduction, then air bubbles are reduced, but the introduction time is extended
Solution Approach 1:
The switching member operates periodically to sequentially connect different feeders to different inlet-and-outlets. The system alternates between filling operations (connecting feeders to inlet ports) and introduction operations (connecting inlet ports to the specimen treatment device), creating a rhythmic cycle that efficiently fills flow paths with multiple liquids without requiring excessive time, thus achieving bubble-free introduction while minimizing time loss
Solution Approach 2:
The liquid introduction process is segmented into distinct phases: filling phase where feeders connect to inlet-and-outlets to fill flow paths, and introduction phase where inlet ports connect to the specimen treatment device. The switching member enables this segmentation by controlling the flow paths at different time points, allowing parallel preparation of multiple liquid channels that can then be introduced simultaneously or sequentially without interference, reducing overall introduction time while ensuring bubble-free operation
Data Source
AI summary
A specimen introduction method for improving a measurement accuracy and efficiency includes a preparation step, first step, second step, and third step. The preparation step uses a switching member to connect a first feeder to a first inlet-and-outlet, a second inlet-and-outlet to a discharge container, a third inlet-and-outlet to a first inflow port, and a second feeder to a second inflow port. The first step includes filling a path from the second feeder to the switching member through the second inflow port, a specimen treatment device, and the first inflow port with a second liquid. The second step includes filling a path from the first feeder to the switching member with a first liquid. The third step includes subsequently introducing the first liquid into the first inflow port from the first feeder through the switching member, and introducing the second liquid into the second inflow port from the second feeder.