3D Analyte Sensor Electrode Relay for Longer Service Life
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current analyte detection devices with single-sided electrodes have a limited service life due to time-limited enzyme activity, requiring frequent replacements and increasing user inconvenience and cost.
Innovation Solution
An analyte detection device with a three-dimensional sensor design featuring at least two groups of electrodes on an insulating substrate, connected via pins and wires, utilizing an external circuit for electrical connection to an elastic conductor, which is then connected to the transmitter, allowing for electrode relay and redundant use to prolong service life and enhance reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-sided electrode sensor is used, then the device structure is simple, but the service life is limited to 1-14 days due to enzyme activity degradation
Solution Approach 1:
The sensor is divided into two separate planes (first plane and second plane), each carrying electrodes. This segmentation allows the sensor to have multiple electrode groups that can be used sequentially or in parallel, extending the service life beyond the limitation of a single-sided electrode design.
Solution Approach 2:
The patent transitions from a single-sided (2D) electrode arrangement to a dual-plane (3D) electrode arrangement. By utilizing both sides of the substrate, the sensor effectively adds a dimensional aspect, allowing for multiple electrode groups that can prolong service life through relay or redundant use.
2Duration of action of stationary object
If the sensor service life is extended through multiple electrode groups, then the service life increases, but the device complexity increases due to additional pins, wires, and electrical connections
Solution Approach 1:
Multiple electrode groups on different planes are merged into a unified sensor system that shares common structural elements (substrate, pins, wires). This merging allows the system to achieve extended service life through electrode relay while managing complexity through integrated design.
Solution Approach 2:
The dual-plane electrode structure provides multi-functionality by enabling both sequential use (relay mode) and redundant use (parallel mode) of electrode groups. This universality allows the sensor to adapt to different operational requirements while extending service life.
3Reliability
If multiple electrode groups are arranged on both planes of the substrate, then electrode relay and redundant use are enabled, but the manufacturing complexity increases
Solution Approach 1:
The manufacturing process is segmented into handling first-plane electrodes and second-plane electrodes separately, with clear distinction between the two planes. This segmentation simplifies the manufacturing complexity by providing structured steps for creating the dual-plane electrode configuration.
Solution Approach 2:
The substrate is prepared with predetermined locations for first-plane and second-plane electrodes before the actual electrode formation. This preliminary action of planning the dual-plane structure simplifies subsequent manufacturing steps and ensures proper alignment and connection.
Data Source
AI summary
An analyte detection device with a three-dimensional sensor, includes: a transmitter provided with an electrical connection area; a bottom case provided with a sensor base; a sensor including a signal output end and a detection end. The signal output end is provided with pins, and the detection end is provided with at least two groups of electrodes. The pins are connected with the electrodes through wires, and each group of pins, wires and electrodes are arranged on both sides of an insulating substrate. An elastic conductor includes conductive areas and insulating areas distributed at intervals, and the conductive areas are electrically connected with the electrical connection area. The pins on the first plane of the substrate are electrically connected with the elastic conductor through an external circuit, and the pins on the second plane of the substrate are directly electrically connected with the elastic conductor.