EEG Electrode Holder Structure for Angle Switching and Wire Routing
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Solution Overview
Problem
Existing electrode holder structures in EEG caps are cumbersome, difficult to mount and dismount, and require separate adjustments for wire positioning, with single-layer snapping and complex wiring configurations.
Innovation Solution
An electrode holder structure featuring a base with multiple clamping jaws forming an accommodation area, where stimulating and collecting electrodes are clamped and stacked, allowing for flexible angle adjustment and improved wire arrangement through concentric through holes and deformable materials for easy mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single-layer snapping structure is used for the electrode holder, then the device complexity is reduced, but the adaptability for angle switching is insufficient
Solution Approach 1:
The patent employs a multi-layer nested snapping structure where an inner snapping layer and an outer snapping layer are positioned at different heights on the base. The inner snapping layer provides primary attachment while the outer snapping layer enables angle switching functionality. This nested arrangement allows the electrode holder to be securely mounted at multiple angles without requiring a completely complex restructuring of the base design.
2Ease of manufacture
If a protruding fixing bolt is used to mount the electrode, then the manufacturing precision is improved, but the ease of operation for mounting and dismounting deteriorates
Solution Approach 1:
The patent divides the electrode holder into separable components including the base with snapping layers, the electrode holder body, and the electrode pad assembly. The electrode holder can be easily attached to the base by snapping into place and detached by releasing the snapping mechanism, while the electrode pad remains securely positioned on the holder through the deformable material interface. This segmentation allows for tool-free mounting and dismounting operations.
3Ease of operation
If multiple separate adjustment mechanisms are used for wire positioning, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The patent utilizes the deformable properties of the material (such as silicone rubber or similar elastomers) to create a mounting interface that can be compressed during assembly and then returns to its original shape to secure the electrode holder. This single parameter change (deformation and recovery) provides both easy mounting/dismounting and stable positioning, eliminating the need for multiple separate adjustment mechanisms for wire arrangement and electrode positioning.
Data Source
AI summary
An electrode holder structure and an electroencephalogram cap are provided. The electrode holder structure includes a base, where multiple clamping jaws are disposed circumferentially and the clamping jaws are enclosed to form an accommodation area; an electrode holder, disposed in the accommodation area and fixedly clamped by multiple clamping jaws to form the electrode holder structure. Multiple clamping jaws are disposed circumferentially around the base, and at least one electrode holder is disposed in the multiple layers of accommodation areas formed by multiple clamping jaws, so as to realize stacking disposal of the electrode holder and the seat and improve the entire generality.