Remote Lateral Flow Immunoassay Image Interpretation
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Solution Overview
Problem
Self-administered diagnostic test kits for home use, such as lateral flow immunoassay (LFIA) tests, require manual interpretation of results, which can be subjective and impractical, especially in non-clinical settings, and may lead to behavioral reactions due to visible test outcomes.
Innovation Solution
A system and method for digitally capturing and analyzing LFIA test images using mobile devices, incorporating context data to interpret test results through computer-based image processing, allowing for remote analysis and obfuscation of test strip readouts to prevent behavioral reactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual visual interpretation of LFIA test results is used, then the test can be performed at home with simple equipment, but the interpretation is subjective and may lead to behavioral reactions due to visible test outcomes
Solution Approach 1:
The patent replaces the manual visual interpretation mechanism with an automated digital image processing system. A mobile device captures an image of the test strip, and computer-based image processing routines automatically analyze the analytical and control zones to determine test results, eliminating subjective human interpretation while maintaining home-use simplicity
Solution Approach 2:
The patent introduces a digital image as an intermediary between the test strip and the user. The test results are captured in an image format that can be processed by algorithms, and the user receives only the interpreted result rather than directly viewing the test strip, thus preventing behavioral reactions while improving reliability
2Measurement precision
If digital image processing is used to interpret test results, then interpretation accuracy is improved, but device complexity increases
Solution Approach 1:
The patent utilizes a mobile device, which users already possess for other purposes, to perform the additional function of capturing and processing test strip images. This avoids requiring a dedicated specialized device, thereby improving measurement precision without significantly increasing overall system complexity
Solution Approach 2:
The system performs automated image processing and result interpretation without requiring specialized equipment or expert operation. The mobile device and processing algorithms work together to automatically analyze the test strip image and provide results, making the sophisticated analysis accessible through simple home use
3Loss of information
If test strip readout is made visible for user interpretation, then the user can understand the result, but behavioral reactions may occur due to visible test outcomes
Solution Approach 1:
The patent extracts the test result information from the visual test strip readout and presents it in an alternative format through the mobile device interface. The user receives the interpreted result data without being exposed to the visual appearance of the test strip, thereby preventing behavioral reactions while maintaining full information availability
Data Source
AI summary
A computing system receives, from a user device, an image that depicts at least a readout area of a test strip from a lateral flow immunoassay (LFIA) test after an LFIA test has been performed by applying a biological sample of a user to the test strip. The system obtains context data that describes a context of the LFIA test for the user, analyzes the image and the context data to generate an interpretation of a result of the LFIA test, wherein the interpretation indicates a condition of the user measured by the LFIA test, and returns the interpretation of the result of the LFIA test to the user device.