Biosensor Socket ESD Shielding for Reliable Glucose Monitoring

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Solution Overview

Problem

Conventional continuous glucose monitoring systems face issues with electrostatic discharge due to static electricity accumulation on biosensors and transmitters, which can damage components and affect product operation and lifespan, especially with miniaturization.

Innovation Solution

A physiological signal monitoring device with an electrostatic-discharge protective mechanism, featuring a transmitter casing with an electrostatic-discharge protective unit surrounding the connecting port, which dispels static electricity and protects internal components by grounding unbalanced charges.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the biosensor and transmitter are separately packaged and assembled right before use, then the product can be conveniently prepared, but static electricity accumulates on the components during transport and packaging, causing damage to the biosensor and internal electronic components

Engineering Contradiction:

Improveconvenience of preparationVSAvoidcomponent protection from electrostatic discharge

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The electrostatic-discharge protective unit is pre-installed on the transmitter before packaging and transport. This preliminary protective measure ensures that when the biosensor and transmitter are separately packaged and assembled right before use, the components are already protected from static electricity accumulation during transport, resolving the contradiction between ease of preparation and component protection

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The electrostatic-discharge protective unit acts as an intermediary between the transmitter's internal electronic components and the external electrostatic environment. It provides a dedicated electrostatic discharge path that isolates sensitive components from harmful static electricity while allowing the transmitter to be separately packaged and handled during assembly preparation

Inventive Principle:

Principle #24Intermediary (Mediator)

2Volume of moving object

If the biosensor and transmitter are miniaturized, then the device becomes more compact and wearable, but the electrostatic-discharge issue becomes more serious, affecting operation and lifespan

Engineering Contradiction:

Improvedevice sizeVSAvoidelectrostatic discharge susceptibility

Core Design Contradiction:

Volume of moving objectVSObject-affected harmful factors

Solution Approach 1:

The electrostatic-discharge protective unit is strategically positioned at the periphery of the socket in the connecting port, where electrostatic discharge most frequently occurs during connection and disconnection operations. This localized protection approach provides targeted defense against electrostatic damage in the critical connection region without requiring complete enclosure of the entire miniaturized device, thus maintaining compact form factor while addressing the heightened electrostatic susceptibility of miniaturized components

Inventive Principle:

Principle #3Local quality

3Reliability

If the electrostatic-discharge protective unit is disposed at the periphery of the socket, then it can effectively bear and dispel static electricity, but it occupies additional space within the already miniaturized transmitter

Engineering Contradiction:

Improveelectrostatic discharge protectionVSAvoidtransmitter internal space

Core Design Contradiction:

ReliabilityVSVolume of stationary object

Solution Approach 1:

The electrostatic-discharge protective unit is implemented as a thin-walled cylindrical structure with wall thickness of 0.5-1.5mm, providing effective electrostatic protection through its peripheral positioning around the socket while occupying minimal internal space. This thin-film approach allows the protective function to be integrated into the existing transmitter structure without significantly increasing the overall device volume, resolving the contradiction between reliability and space constraints in miniaturized design

Inventive Principle:

Principle #30Flexible shells and thin films

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

The electrostatic-discharge protective unit effectively prevents damage from static electricity, ensuring reliable operation and extended lifespan of the monitoring device by safely dissipating electrostatic charges, thus safeguarding the biosensor and transmitter components.

Implementation Method 1

The electrostatic-discharge protective unit is at least disposed to the periphery of the socket of the connecting port for bearing and dispelling static electricity when electrostatic discharge occurs

Methodology Applied

Scientific EffectElectrostatic discharge: Electrostatic Discharge

Data Source

PatentEP3777681B1Physiological signal monitoring device with an electrostatic-discharge protective mechanism

Publication Date: 2024.11.13 BIONIME

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AI summary

A physiological signal monitoring device includes a base (1) and a transmitter (3). The base (1) is provided with a biosensor (2). The transmitter (3) is removably coupled to the base (1), and includes a casing (31) and an electrostatic-discharge protective unit (39). The casing (31) has a socket (367) for the biosensor (2) to be removably inserted thereinto. The electrostatic-discharge protective unit (39) is disposed to at least surround the periphery of the socket (367) to dispel static electricity when electrostatic discharge occurs.