Automated Liquid Sample Pre-processing System with Valve Switching
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Solution Overview
Problem
Conventional pre-processing systems for liquid samples are cumbersome for users, requiring manual sampling and setup for each cycle, complicating the process.
Innovation Solution
A pre-processing system with a sample setting unit, probe, pump, and switching unit that automates the process of introducing and discharging liquid samples, allowing for automated operation and integration with a cleaning solution system, reducing user intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual sampling and setup is performed for each cycle, then the pre-processing system can handle liquid samples, but the user work becomes complicated and time-consuming
Solution Approach 1:
The system enables self-service by allowing the liquid sample storage unit to automatically supply liquid samples to the probe through the switching unit, eliminating the need for manual sampling operations by the user while maintaining full functionality of the pre-processing system
Solution Approach 2:
The liquid sample storage unit is pre-configured with liquid samples and the switching unit is pre-set to automatically connect the probe to the liquid sample storage unit at the appropriate time, so that no manual intervention is needed during the sampling process
2Productivity
If the probe is manually connected to the pump and liquid sample storage unit, then the pre-processing can be performed, but the operation time increases
Solution Approach 1:
The switching unit is pre-configured to automatically switch between the pump and the liquid sample storage unit at the appropriate times, so that the probe is always ready to receive liquid samples without manual connection delays
Solution Approach 2:
The switching unit enables continuous operation by automatically maintaining the connection between the probe and the liquid sample storage unit throughout the pre-processing cycles, eliminating idle time and manual reconnection operations
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 system simplifies user work by automating the sampling and processing of liquid samples, reducing manual handling and enabling efficient pre-processing operations.
Implementation Method 1
By driving a pump in this state, the liquid sample is sucked into the probe. After that, the probe is moved to a dispensing position, and the pump is driven again. In this manner, the liquid sample is discharged from the tip of the probe to the dispensing position
Implementation Method 2
a suction operation and a discharge operation using a probe are performed. Specifically, a tip of the probe is inserted into the sample container so as to be immersed in the liquid sample. By driving a pump in this state, the liquid sample is sucked into the probe
Data Source
AI summary
In a pre-processing system, a state in which a sample dispensing probe 20a and a syringe pump 81 communicate with each other through a channel 91 and a state in which the sample dispensing probe 20a and a culture tank 301 communicate with each other through the channels 91, 93, and 94 can be switched by operation of the three-way valves 82 and 83. For this reason, the liquid sample in the culture tank 301 can be automatically discharged from the sample dispensing probe 20a without requiring the user to directly sample the liquid sample. As a result, in the pre-processing system, the user's manual sampling work can be omitted, and the user's work can be simplified.