Automated Timer Tray for LFA Incubation Timing
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Solution Overview
Problem
Current COVID-19 testing systems, particularly those using lateral flow assays (LFA) strips, face challenges with accurate timing of incubation periods, leading to errors and inaccuracy due to manual timing methods, which are prone to human error and contamination issues, especially in high-volume testing environments.
Innovation Solution
A timer tray system with integrated processors, sensors, and multicolor LEDs that automatically manage incubation times for multiple LFA strips, ensuring timely readings and reducing errors through automated timing and contamination protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual timing methods are used for incubation periods, then device complexity is reduced, but timing precision and reliability deteriorate due to human error
Solution Approach 1:
The system automatically tracks incubation time for each cassette without requiring manual intervention. The processor continuously monitors the timer and autonomously determines when the incubation period has elapsed, eliminating human error in timing while maintaining simplicity through automated self-management of the timing process
Solution Approach 2:
Manual mechanical timing methods are replaced with an electronic timing system comprising a processor, timer, and display. This substitution provides precise digital time measurement and automatic notification, significantly improving timing accuracy while the integrated electronic system remains relatively simple in structure
2Device complexity
If manual timing methods are used, then device complexity is reduced, but productivity deteriorates due to inefficiency in high-volume testing
Solution Approach 1:
The system autonomously manages the incubation timing process, automatically tracking time and notifying technicians when readings are due. This eliminates the need for technicians to manually track multiple incubation periods, significantly improving productivity in high-volume testing environments while keeping the system simple to operate
Solution Approach 2:
The timer operates continuously throughout the incubation period without interruption or manual reset, providing uninterrupted time tracking. This continuous automated operation maintains high productivity by ensuring no incubation period is missed or mismanaged, even during high-volume testing
3Device complexity
If manual timing is used, then device complexity is reduced, but reliability deteriorates due to contamination risks and timing errors
Solution Approach 1:
Manual handling and timing operations are replaced with an automated electronic timing system. This substitution eliminates the risk of contamination from manual contact with test samples while providing reliable, error-free timing records, thereby improving the overall reliability and accuracy of test results
Solution Approach 2:
The system provides automatic visual feedback through the display showing elapsed time and providing auditory feedback through alarms when incubation periods are complete. This feedback mechanism ensures that technicians are reliably notified of ready results, eliminating missed readings and improving the reliability of test outcome documentation
Data Source
AI summary
A device including a processor and memory coupled to the processor. The device has a display and a switch coupled to the processor. The device has a cassette holder for holding a cassette associated with the display and the switch. When the processor receives an input indicating activation of the switch, a timer is activated for a predetermined timer length and time is displayed on the display.