Test Strip Electrical Identification via Biosensor Verification
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Solution Overview
Problem
Users face the risk of misapplying incompatible test strips with biosensors due to the need for visual confirmation of compatibility, which is a significant concern for portability and home use.
Innovation Solution
The test strip design includes a base with a reaction area, working and grounding wires with specific contacts, division layers, and a cover layer, allowing for electrical distinction by a biosensor, ensuring compatibility through unique electrical connections and codes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If test strips have similar or the same shape and appearance for portability, then ease of manufacture and device simplicity are improved, but reliability deteriorates due to risk of misapplying incompatible test strips
Solution Approach 1:
The patent replaces visual identification (mechanical/optical system) with electrical identification. The biosensor uses electrical signals to automatically identify and verify test strip compatibility through electrical contacts, eliminating the need for users to visually distinguish between different test strip types.
Solution Approach 2:
The patent introduces electrical contacts and a biosensor as an intermediary system between the user and the test strip. This intermediary automatically verifies compatibility through electrical connection, preventing misapplication without requiring users to perform visual verification.
2Reliability
If visual distinction methods are used to identify test strip compatibility, then reliability is improved, but ease of operation deteriorates due to requiring user attention and confirmation
Solution Approach 1:
The biosensor system performs self-verification of test strip compatibility through automatic electrical identification. The system checks compatibility without requiring user intervention or attention, making the operation as simple as inserting the test strip while ensuring reliability through automatic verification.
Solution Approach 2:
The patent implements an electrical feedback mechanism where the biosensor detects the electrical characteristics of the test strip and provides automatic verification. This feedback loop ensures compatibility is confirmed before use, eliminating the need for manual visual checking while maintaining ease of operation.
3Reliability
If electrical identification contacts are added to test strips, then reliability is improved through automatic compatibility verification, but device complexity increases
Solution Approach 1:
The patent changes the identification parameter from visual (optical) to electrical. By adding electrical contacts to the test strip, the system enables automatic compatibility verification through electrical parameter detection, significantly improving reliability while maintaining relatively simple test strip construction.
Data Source
AI summary
The invention includes a base, a working wire, a grounding wire, a first division layer, a second division layer and a cover layer. The base has a reaction area. The working wire is formed with a first measure contact and a first bioreaction contact. The grounding wire is formed with a second measure contact and a second bioreaction contact. The first division layer and second division layer have a first inlet and a second inlet, respectively. The first inlet and the second inlet correspond to the reaction area in position to expose the first and second bioreaction contacts. The guiding trough is formed by the cover layer, the base and the first and second inlets.