Disposable Test Strip Reader with Machine-Readable Display
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for determining the presence or concentration of target substances in biological samples are often costly and require complex equipment, limiting accessibility and accuracy for untrained users.
Innovation Solution
A device comprising a housing with a test strip mounting location, a user-operable coupling, and sensors that generate signals indicative of sample changes, along with a display encoding data for machine-readable patterns, allowing for simplified and cost-effective assays in a user-friendly format.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional assay methods are used, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent extracts the essential assay function from complex conventional equipment by using a simple test strip that can be manually inserted into a basic reader device. The test strip contains the necessary reagents and reaction zones, separating the analytical function from expensive laboratory equipment.
Solution Approach 2:
The patent employs disposable test strips that are inexpensive and single-use, eliminating the need for expensive, complex, and expensive laboratory equipment. Each test strip is pre-prepared with reagents and discarded after one use, reducing both equipment complexity and contamination risk.
2Measurement precision
If conventional assay methods are used, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The test strip is designed to be self-contained with pre-applied reagents and built-in reaction zones. The user simply applies the sample and inserts the strip into the reader - no complex preparation, mixing, or calibration is required. The test strip performs the chemical reactions automatically.
Solution Approach 2:
The assay system is segmented into a simple disposable test strip and a basic reader device. This segmentation allows the complex chemical reactions to be contained within the test strip while the reader only needs to detect signals, making the overall system easier to operate.
3Measurement precision
If complex equipment is used, then measurement precision is improved, but cost increases
Solution Approach 1:
The patent replaces expensive laboratory equipment with inexpensive disposable test strips and a simple reader device. The test strips are manufactured at low cost using standard techniques and can be produced in large volumes, making the overall system much more affordable.
Solution Approach 2:
The patent extracts the expensive and complex components from the assay system and replaces them with simple, inexpensive alternatives. Only the essential detection function remains in the reader, while the complex reagent systems are contained within disposable test strips.
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
Enables accurate and convenient determination of analyte presence or concentration in biological samples, reducing user error and costs, while being accessible for home use by untrained consumers.
Implementation Method 1
at least one sensor in the housing configured to generate a signal indicative of a change in a characteristic of the sample strip
Data Source
AI summary
Devices, systems, and kits for assaying a liquid sample include a reader and a test strip. The test strip may comprise a disposable cassette. The system may include a test strip mounting structure configured to receive the cassette in a predetermined orientation. The apparatus includes a processor and memory, together configured to conduct an assay of the liquid sample. The apparatus may include a display configured to generate a pattern encoding data related to a result of the assay.