Flexible Patch Electrode Connector for Reliable Twist-Lock Attachment
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Solution Overview
Problem
Existing bio-signal measurement devices face challenges in achieving reliable mechanical and electrical connections with disposable patch electrode structures, often requiring complex electromechanical components and metal parts that are not optimized for repeated use or ease of attachment and detachment.
Innovation Solution
A bio-signal apparatus featuring a flexible patch electrode structure with asymmetrical mechanical and electrical connectors, including a first connection part with an asymmetrical plate structure and a second connection part with a wedge structure, allows for secure and repeatable attachment and detachment, using wear-resistant materials to enhance durability and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex electromechanical parts and metal connectors are used to ensure reliable connection, then connection reliability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent replaces complex electromechanical connection systems with a simplified mechanical pressing structure. The connection device uses a pressing element that mechanically presses the electrode structure against the measurement device housing, eliminating the need for complex electromechanical connectors while maintaining reliable electrical contact through the housing itself serving as the electrical connection path.
Solution Approach 2:
The patent extracts and removes complex electromechanical parts and metal connectors from the connection system. By taking out these unnecessary components, the design achieves reliable connection through a simpler mechanical pressing mechanism where the housing structure itself provides the electrical connection, reducing both complexity and manufacturing cost.
2Ease of operation
If repeated attachment and detachment operations are performed, then ease of operation is improved, but mechanical wear and connection reliability deteriorate
Solution Approach 1:
The patent implements a dynamic pressing mechanism that automatically adapts to wear. The spring element provides continuous pressing force that can compensate for mechanical wear over time, maintaining reliable electrical contact even after repeated attachment and detachment operations. The dynamic nature of the spring-loaded system allows it to self-adjust and maintain optimal contact pressure.
Solution Approach 2:
The patent incorporates a spring element that beforehand cushions and distributes mechanical stresses during attachment and detachment operations. This pre-engineered cushioning mechanism protects the connection interfaces from wear by absorbing impact forces and distributing pressure evenly, thereby extending the durability of the connection system.
3Ease of operation
If disposable electrode structures are used, then ease of operation and hygiene are improved, but manufacturing cost and waste increase
Solution Approach 1:
The patent segments the measurement system into a reusable connection device/housing and a disposable electrode structure. This segmentation allows the expensive and complex connection mechanism to be reused multiple times while only the simple electrode consumables are discarded, reducing overall material waste and manufacturing cost while maintaining ease of operation for electrode replacement.
Data Source
AI summary
A first mechanical connection part associated with a bio-signal receiving device is connected with a second mechanical connection part of a flexible patch electrode structure. An asymmetrical plate structure of a first mechanical connection part is inserted through a correspondingly asymmetrical hole of the second mechanical connection part of a flexible patch electrode structure. The asymmetrical plate structure is integrated with a bar and another side of the bar being coupled with a plane arrangement of the first mechanical connection part. The asymmetrical plate structure and the plane arrangement having a non-zero distance therebetween. Connection and orientation between the first mechanical connector and the second connection part is limited to those with acceptance of the asymmetry. The bio-signal receiving device and the flexible patch electrode structure are rotated with respect to each other round a rotational axis that is parallel to a longitudinal axis of the at least one bar in order to move an upper surface of the asymmetrical plate structure against the flat structure, the lower surface facing the plane arrangement, and the rotation causing a mechanical and electrical connection between the bio-signal receiving device and the flexible patch electrode structure.