Immunological Test Device Stop Button Control
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Solution Overview
Problem
In immunological test apparatuses, there is a risk of chemical solutions for sensitization processing adhering to users when the stop button is operated during tests, especially when droplets remain on the carrier, potentially causing chemical burns or staining.
Innovation Solution
The immunological test apparatus includes a function switching unit that deactivates the stop button's function during sensitization processing, preventing the chemical solution from adhering to users by not displaying the stop button when sensitization processing starts, and using a driving controller to initiate sensitization processing if a determination result is not obtained within a set time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the stop button is made operational during the test, then the user can stop the test at any timing, but there is a risk that remaining chemical solution droplets on the carrier will adhere to the user's hand causing chemical burns or staining
Solution Approach 1:
The system performs preliminary action by detecting the start of sensitization processing before the user can operate the stop button, and proactively disables the stop button function. The control unit monitors the test progress and determines when sensitization processing has started, then prevents the stop button from being operational during this critical phase, thereby eliminating the harmful effect before it can occur.
Solution Approach 2:
The system implements feedback by continuously monitoring the test progress and the state of the carrier. The control unit receives feedback about the test timing and determines whether sensitization processing is underway based on this feedback. This closed-loop feedback mechanism ensures the stop button is disabled at the appropriate moment when chemical solution droplets are present on the carrier.
2Measurement precision
If sensitization processing is performed to increase coloration density, then detection sensitivity is improved, but chemical solution droplets remain on the carrier during processing creating safety hazards
Solution Approach 1:
The system converts the potentially harmful presence of chemical solution droplets on the carrier during sensitization processing into a beneficial control signal. The control unit detects that sensitization processing is underway (when droplets are present) and uses this information to disable the stop button, thereby transforming the hazardous condition into a trigger for safety enhancement.
3Object-affected harmful factors
If the stop button function is disabled during sensitization processing, then user safety is protected from chemical solution adhesion, but the user cannot stop the test if needed
Solution Approach 1:
The stop button functionality is made dynamic rather than static. The control unit adjusts the operational state of the stop button based on the current test phase. During sensitization processing when chemical solution droplets are present on the carrier, the stop button is disabled. During other phases when no droplets are present, the stop button remains operational. This dynamic adaptation resolves the contradiction by providing safety when needed while maintaining operational flexibility when safe.
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
This solution effectively prevents chemical solutions from adhering to users during and after tests, ensuring user safety and maintaining the integrity of the testing process by ensuring the stop button is not operational during sensitization processing.
Implementation Method 1
a chemical solution for sensitizing the state of coloration (increasing the density of coloration) of a reagent, for example, a solution of a silver ion-containing compound, such as silver nitrate
Implementation Method 2
measures the coloration state (density, chromaticity) of the reagent based on an imaging signal obtained by the imaging
Data Source
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AI summary
There are provided an immunological test apparatus and an operation method thereof capable of preventing a chemical solution for sensitization processing from adhering to a user. An immunological test apparatus (10) displays a stop button (activates a function of a stop button) during a period from the start of a test to a set time (TS) (0 < TP ≤ TS), that is, before sensitization processing is started. On the other hand, the stop button is not displayed (function of the stop button is deactivated) during a period from the set time (TS) to a time (TE) (TS < TP ≤ TE), that is, after the sensitization processing is started.