Analyte Sensor Pin Layout for Reliable Skin Penetration
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Solution Overview
Problem
Existing analyte detection devices face reliability issues due to the substrate bending away from the auxiliary needle during installation, which hinders skin penetration and affects detection accuracy.
Innovation Solution
The analyte detection device is designed with pins on the signal output end connected through wires to electrodes on the detection end, arranged on the same side of the substrate, and connected via an elastic conductor to the transmitter's electrical connection area, ensuring the substrate bends towards the auxiliary needle, facilitating smooth penetration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the electrode is arranged on one side of the substrate and the pin is arranged towards the transmitter, then the electrical connection with the transmitter is facilitated, but the substrate bends away from the auxiliary needle side which hinders skin penetration
Solution Approach 1:
The patent inverts the traditional arrangement by placing the pin on the side facing the auxiliary needle rather than towards the transmitter. This inversion causes the substrate to bend towards the auxiliary needle during installation, ensuring reliable skin penetration while the electrical connection is maintained through the pin's contact with the electrical connection area.
2Shape
If the substrate bends away from the auxiliary needle, then the electrode side faces the auxiliary needle, but this bending reduces detection reliability
Solution Approach 1:
The patent applies preliminary anti-action by pre-positioning the pin on the auxiliary needle side, which creates a counteracting force that prevents the substrate from bending away from the auxiliary needle. This preliminary arrangement ensures the substrate maintains the correct orientation for reliable detection during skin penetration.
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
This configuration enhances the reliability of the detection device by allowing smooth skin penetration and improving detection accuracy during installation.
Implementation Method 1
The pin and the elastic conductor are electrically connected through the external circuit, and then electrically connected with the electrical connection area of the transmitter
Data Source
AI summary
An analyte detection device includes: a transmitter provided with electrical connection areas; a bottom case provided with a sensor base; a sensor including a signal output end and a detection end, the signal output end provided with pins, the detection end provided with electrodes, the pins connected with the electrodes through the wires, the pins, the wires and the electrodes arranged on an insulated substrate and located on the same side of the substrate, and the pins facing towards the sensor base; an elastic conductor including conductive areas and insulating areas distributed at intervals, the conductive areas electrically connected with the electrical connection areas, the pins and the elastic conductor electrically connected through an external circuit.