Assay Device Acoustic Sealing Verification
Solution Overview
Problem
Existing assay devices for testing analytes in liquid samples are complex and require professional handling, posing health risks and contamination risks due to manual handling and inconsistent sealing, which complicates operations and accuracy for non-professionals.
Innovation Solution
A simple-to-operate assay device with a collecting chamber, test elements, and an indication structure that uses sound and vibration to confirm the cover body has sealed the chamber, ensuring accurate sealing and preventing leakage, featuring resilient elements that deform and vibrate to create a clear, lasting sound without contacting other objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional assay devices are used with sealed containers, then sample contamination and health risks are reduced, but the operation becomes complex and requires professional handling
Solution Approach 1:
The device performs self-indication through an acoustic signal that automatically notifies when the cover is properly sealed, eliminating the need for professional interpretation of sealing status and simplifying operation for non-professionals while maintaining contamination prevention
Solution Approach 2:
The patent replaces complex mechanical sealing verification mechanisms with a simple acoustic indication system, where a resonant cavity generates a audible sound when the cover is properly sealed, making the sealing status intuitive and easy to understand for non-professionals
2Productivity
If manual handling of samples is required, then testing can be performed, but health risks and contamination risks increase
Solution Approach 1:
The device introduces an intermediary acoustic indication system that mediates between the sealing mechanism and the user, providing clear feedback about sealing status without requiring direct manual handling of the sample container, thereby reducing health and contamination risks while maintaining testing capability
3Illumination intensity
If the indication structure contacts other objects during vibration, then the sound may be dampened, but the structure becomes more complex
Solution Approach 1:
The patent applies local quality by creating a specific resonant cavity space with particular acoustic properties, where the indication structure vibrates freely without contact restrictions in a localized region, enhancing sound clarity and duration while keeping the overall device structure simple
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 device simplifies operation for non-professionals, providing accurate test results by ensuring complete sealing and preventing sample leakage, while allowing non-professionals to accurately assess test results without risking contamination or health hazards.
Implementation Method 1
the indication structure uses sound and vibration to confirm the cover body has sealed the chamber
Implementation Method 2
providing accurate test results by ensuring complete sealing and preventing sample leakage
Data Source
AI summary
This invention provides an assay device for testing an analyte in samples, comprising a chamber with an opening for collecting samples, a test element, and a sound indication structure. The indication structure creates sound by vibrating after the structure deforms and would move back to the original position. The assay device is easy to operate for non-professionals.