Microfluidic testing system and control method therefor, and refrigerator
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Solution Overview
Problem
Existing microfluidic biochip testing systems require manual sample loading and complex sample delivery, leading to inaccuracies and user inconvenience due to the lack of automation in sample preparation and handling.
Innovation Solution
A control method for a microfluidic testing system that includes a lifting mechanism for automatic sample stage movement, a buffer liquid driving device for precise sample liquid preparation, and an oscillation device to ensure proper mixing, along with automated detection and prompting for biochip insertion and sample stage emptying, facilitating high-automation sample loading and testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual sample loading is used, then the device structure is simple, but the ease of operation deteriorates and accuracy decreases
Solution Approach 1:
The system automatically detects the sample cup placement via weight sensor, automatically drives the buffer liquid into the sample cup through the buffer liquid driving device, and automatically moves the sample stage to the testing position. This self-service automation eliminates manual sample loading operations while maintaining simple device structure.
Solution Approach 2:
The patent replaces manual mechanical sample loading with an automated control system that uses weight sensors to detect sample cup placement, electronic control to operate the buffer liquid driving device, and automated control to position the sample stage. This substitution improves operational ease while keeping the overall device structure relatively simple.
2Manufacturing precision
If manual sample preparation is used, then the device structure is simple, but the manufacturing precision deteriorates
Solution Approach 1:
The weight sensor provides feedback on the sample cup placement and sample weight, which the control system uses to automatically control the buffer liquid driving device to add the precise amount of buffer liquid needed. This feedback mechanism ensures accurate sample liquid concentration without requiring complex manual preparation procedures.
Solution Approach 2:
The system automatically determines the required buffer liquid quantity based on the detected sample weight and automatically drives the buffer liquid into the sample cup to the required quantity. This self-service approach ensures precise sample liquid preparation while maintaining simple device structure.
3Productivity
If automated sample delivery is implemented, then the productivity improves, but the device complexity worsens
Solution Approach 1:
The patent combines the sample cup placement detection function, buffer liquid driving function, and sample stage movement function into a unified automated control system. This merging of functions improves testing efficiency while avoiding the complexity of separate independent systems for each function.
Solution Approach 2:
The control system serves multiple functions: it detects sample cup placement via weight sensor, controls the buffer liquid driving device to add buffer liquid, and controls the sample stage movement to the testing position. This multi-functionality improves productivity while maintaining relatively simple device structure.
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 method enhances the accuracy and convenience of sample loading and testing by automating the process, ensuring precise sample preparation and handling, thereby improving user experience and reducing manual errors.
Implementation Method 1
a lifting mechanism for driving the sample stage to move... starting the lifting mechanism when the sample cup holding the sample liquid is placed on the sample stage, and controlling the lifting mechanism to move the sample stage from an initial position to a testing position
Implementation Method 2
driving a buffer liquid to flow into the sample cup by the buffer liquid driving device
Implementation Method 3
an oscillation device is further provided on the sample stage, and after stopping the buffer liquid driving device and before controlling the sample stage to move from an initial position to a testing position thereof, the control method further includes: starting the oscillation device to oscillate the sample cup by the oscillation device
Data Source
AI summary
Disclosed are a microfluidic testing system and control method, and a refrigerator. The microfluidic testing system comprises a microfluidic biochip, a sample stage for placing a sample cup, and a lifting mechanism for driving the sample stage to move. The microfluidic biochip is provided with a sample inlet for receiving a sample liquid. The control method comprises: starting a lifting mechanism when a sample cup holding a sample liquid is placed on a sample stage, and controlling the lifting mechanism to move the sample stage from an initial position to a testing position where the sample liquid in the sample cup comes into contact with a sample inlet, thereby realizing sample loading of the microfluidic biochip.