Dual-Electrode Micro Analyte Sensor for Redundant Signal Detection
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Solution Overview
Problem
Existing analyte sensors suffer from signal distortion and low reliability due to single electrode groups prone to background noise and premature termination, leading to unreliable detection and reduced user experience.
Innovation Solution
A micro analyte sensor with a first and second electrode group, each comprising at least one working electrode and additional electrodes, operates at different frequencies to provide redundant detection signals, with the second group taking over when the first fails, ensuring continuous and reliable analyte detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single electrode group is used for analyte detection, then the device structure is simple, but the detection reliability is low due to signal distortion and premature termination
Solution Approach 1:
The patent divides the electrode system into multiple independent electrode groups (first electrode group and second electrode group), each capable of providing detection signals. This segmentation allows the system to maintain simplicity of individual electrode groups while achieving high reliability through redundancy, directly resolving the contradiction between simple structure and reliable detection.
Solution Approach 2:
The patent implements a backup electrode group that can take over when the primary electrode group fails or provides distorted signals. This beforehand cushioning approach ensures continuous reliable detection without requiring complex real-time monitoring systems, resolving the contradiction by preparing redundancy in advance rather than adding complex active protection mechanisms.
2Duration of action of moving object
If a single electrode group operates continuously, then the device structure is simple, but the service life is limited due to premature termination
Solution Approach 1:
The patent segments the electrode system into multiple groups that can operate in sequence or parallel. This allows the sensor to extend its service life by switching between electrode groups when one deteriorates, without requiring a single complex long-lived electrode design.
Solution Approach 2:
The patent implements dynamic switching between electrode groups based on their operational status and signal quality. This dynamic configuration allows the system to adapt to electrode deterioration over time, extending effective service life while maintaining a relatively simple overall structure.
3Reliability
If redundant electrode groups are added for reliability, then detection reliability improves, but the device complexity increases
Solution Approach 1:
The patent divides the redundant electrode system into distinct, independently structured electrode groups with similar internal configurations. This segmentation allows each group to remain simple while the overall system achieves redundancy, minimizing the complexity increase from adding reliability features.
Solution Approach 2:
The patent creates a backup electrode group that replicates the structure and function of the primary group. This copying approach provides reliable redundancy without requiring a completely new complex design, simply duplicating the proven simple electrode group structure.
Data Source
AI summary
A micro analyte sensor includes a substrate, which includes an internal part and an external part; a first electrode group and a second electrode group, located on the surface of the internal part, each electrode group including at least one working electrode and at least one additional electrode. The external part is provided with pins corresponding to each electrode, the pins are respectively electrically connected with the working electrode and the additional electrode through wires. The first electrode group detects the analyte at the first frequency and provides the first detection signal, and the second electrode group detects the analyte at the second frequency and provides the redundant detection signal, and the first frequency is not less than the second frequency.