Reagent Preparing Device with Time-Controlled Water Discarding
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Solution Overview
Problem
Conventional reagent preparing devices face issues with rapid reagent preparation due to degradation of pure water quality over time in storage, leading to suboptimal reagent quality, while systems that prioritize water purification often compromise on rapid supply to analysis modules.
Innovation Solution
A reagent preparing device with a first liquid storage unit, a reagent storage unit, and a controller that discards the first liquid after a predetermined time to maintain reagent quality, combined with an RO water producing unit for diluting high concentration reagents, ensuring rapid and high-quality reagent supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If pure water is stored in advance in the pure water constant-rate tank, then reagent can be rapidly prepared, but the quality of the pure water degrades due to bacterial generation when storage time becomes long
Solution Approach 1:
The system pre-stores a predetermined amount of pure water in the pure water constant-rate tank to enable rapid reagent preparation when needed. This preliminary action allows immediate response to measurement section requirements without waiting for water purification cycles.
Solution Approach 2:
The system automatically discards the pure water in the constant-rate tank when its storage time reaches a predetermined threshold, preventing bacterial degradation. The controller monitors storage time and triggers discarding of the water that has been stored too long, while fresh water is continuously supplied through the water supply unit.
2Reliability
If purified water is transferred to the analysis module immediately after purification, then quality degradation is suppressed, but the purified water cannot be rapidly supplied when required
Solution Approach 1:
The system pre-purifies water and stores it in the pure water constant-rate tank before it is actually needed by the measurement section. This allows the measurement section to receive purified water immediately when required, without waiting for the purification process to complete at the moment of need.
Solution Approach 2:
The water supply system is divided into separate functional components: a water supply unit that continuously provides water, a pure water constant-rate tank that stores pre-purified water, and a controller that manages the process. This segmentation allows independent optimization of purification quality and supply speed.
Data Source
AI summary
A reagent preparing device for preparing a reagent to be supplied to a measurement device for measuring a specimen, comprising: a first liquid storage unit for storing a first liquid; a reagent storage unit for storing a prepared reagent, including the first liquid and a second liquid different from the first liquid; a first liquid discarding unit for discarding the first liquid stored in the first liquid storage unit; and a controller configured for measuring an accumulated time of the first liquid in the first liquid storage unit; and controlling the first liquid discarding unit to discard the first liquid stored in the first liquid storage unit when the accumulated time reaches a predetermined time is disclosed. A specimen measuring device and a reagent preparing method are also disclosed.