Magnetic Test Kit Dispensing for Automated Reagent Handling
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Solution Overview
Problem
Existing test kits require manual operation for reagent retrieval, risking contamination due to human error, especially with corrosive or toxic reagents.
Innovation Solution
A novel test kit design featuring a solenoid coil, magnetic rod, and sealing gasket mechanism that automates reagent discharge through electromagnetic control, allowing quantitative reagent delivery without manual handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual operation is used to retrieve reagents from the test kit, then the tester can access the reagent, but the hands and body of the tester may be contaminated by the reagent
Solution Approach 1:
The patent replaces the manual mechanical operation of opening the cover and using a syringe with an automated electromagnetic system. The solenoid coil generates a magnetic field that actuates the magnetic rod to open the sealing gasket, and the air inlet provides pneumatic pressure to eject the reagent through the liquid outlet, eliminating the need for manual contact with the reagent.
Solution Approach 2:
The test kit is designed to automatically dispense the reagent without requiring the tester to manually open the cover or handle the reagent. The system uses the built-in air inlet to create internal pressure that automatically ejects the reagent when the sealing gasket is opened, making the system self-serving and eliminating harmful manual intervention.
2Quantity of substance
If the test kit is opened manually to access reagent, then the reagent can be obtained, but the process involves manual operation which may lead to contamination
Solution Approach 1:
The manual mechanical process of opening the cover and drawing reagent with a syringe is replaced by an automated electromagnetic-pneumatic system. The solenoid coil actuates the magnetic rod to open the seal, and compressed air automatically ejects the reagent through the liquid outlet, achieving full automation of the reagent dispensing process.
Solution Approach 2:
The patent introduces a magnetic rod as an intermediary between the solenoid coil and the sealing gasket, and uses air pressure as an intermediary force to eject the reagent. These intermediaries enable automated control without direct manual contact, bridging the gap between electrical control and mechanical reagent dispensing.
3Extent of automation
If automated solenoid coil control is used for reagent dispensing, then manual operation is eliminated and contamination risk is reduced, but the device complexity increases
Solution Approach 1:
The automated dispensing system is segmented into distinct functional components: the solenoid coil for magnetic actuation, the magnetic rod for mechanical transmission, the sealing gasket for containment, and the air inlet for pneumatic ejection. This segmentation allows each component to perform a specific function simply, reducing overall system complexity while achieving automation.
Solution Approach 2:
The patent uses pneumatic pressure from the air inlet to automatically eject the reagent through the liquid outlet after the sealing gasket is opened. This pneumatic mechanism provides a simple yet effective way to achieve automated reagent dispensing without complex mechanical linkages or additional actuators.
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
Automated reagent dispensing minimizes contamination risk and enables precise, controlled reagent delivery suitable for automatic test systems.
Implementation Method 1
a solenoid coil is provided at the upper part of the outside of the liquid discharge tube and fixedly connected to the upper part of the outside of the liquid discharge tube
Implementation Method 2
an annular magnet is provided at the bottom of the liquid discharge tube and fixedly connected to the bottom of the liquid discharge tube
Implementation Method 3
a circular tube-shaped air inlet in communication with the interior of the box body and the exterior of the box body is provided at the top of the box body
Data Source
AI summary
A test kit comprising an annular magnet (2), a ball (3), a magnetic bar (4), an electromagnetic coil (5), a box body (6), an air inlet (7), a liquid outlet pipe (8) and a sealing gasket (9), wherein the liquid outlet pipe (8) is located on the bottom face of the box body (6), the top of the liquid outlet pipe (8) is fixed to the box body (6), the cylindrical magnetic bar (4) is arranged in the middle of the liquid outlet pipe (8), the bottom of the magnetic bar (4) is fixedly connected to the ball (3), the round sealing gasket (9) is arranged in a hole in the lower portion of the liquid outlet pipe (8), a spherical pit is provided in the center of the top of the sealing gasket (9), a liquid outlet (1) is provided in the bottom of the pit, the bottom of the ball (3) matches and is tightly attached to the spherical pit in the top of the sealing gasket (9), the annular magnet (2) is fixed to the bottom face of the liquid outlet pipe (8), and the electromagnetic coil (5) is fixed on an outer face of the liquid outlet pipe (8). With the test kit, manual opening of the test kit to take out a reagent for test operation is not needed, and requirements of an automatic test system are met.