Bioelectric Electrode Head Structure for Easy Fit and Secure Retention
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Solution Overview
Problem
Existing bioelectric signal measuring electrodes made of electroconductive rubber face challenges in easy fitting and secure attachment to metal members, often detaching easily after initial fitting.
Innovation Solution
The electrode member is designed with a tapered head portion and slit structure, allowing easy fitting into a metal member's hole and secured attachment through a neck portion and spring bar members, preventing detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the electrode member is made of electroconductive rubber to be softer and secure larger contact area, then the comfort and contact area are improved, but the ease of fitting into the metal member deteriorates
Solution Approach 1:
The electrode member is divided into distinct functional parts: a plate portion for body contact, a neck portion for connection, and a head portion for fitting into the metal member. This segmentation allows each part to be optimized independently - the plate remains soft for comfort while the head can be shaped for easy fitting
Solution Approach 2:
Instead of making the entire electrode member rigid for easy fitting, the patent inverts the approach by making only the head portion (the fitting part) have a specific tapered shape, while the main body remains soft electroconductive rubber for comfort
2Ease of operation
If the electrode member is made of electroconductive rubber to be softer, then the contact comfort is improved, but the reliability of secure attachment deteriorates
Solution Approach 1:
The electrode member is divided into distinct functional parts: a plate portion for body contact, a neck portion for connection, and a head portion for fitting into the metal member. This segmentation allows each part to be optimized independently - the plate remains soft for comfort while the head can be shaped for easy fitting
Solution Approach 2:
Different parts of the electrode member have different properties: the plate portion is soft for comfort, the neck portion provides structural connection, and the head portion has a tapered shape for secure fitting. This local differentiation of properties resolves the contradiction between softness and secure attachment
3Ease of manufacture
If the head portion has a tapered shape for easy fitting, then the ease of fitting is improved, but the stability of the structure deteriorates
Solution Approach 1:
The electrode member is divided into distinct functional parts: a plate portion for body contact, a neck portion for connection, and a head portion for fitting into the metal member. This segmentation allows each part to be optimized independently - the plate remains soft for comfort while the head can be shaped for easy fitting
Solution Approach 2:
The tapered shape of the head portion creates a dimensional transition that enables easy insertion into the metal member, while the neck portion provides structural stability in a different dimensional orientation, connecting the soft plate to the rigid head
Data Source
AI summary
An electrode member for a bioelectric signal measuring electrode is made of an electroconductive material, electrically connected to a wire, and coupled to a metal member including a hole. The electrode member includes a plate portion to be set in contact with a living body, a head portion to be fitted into the hole of the metal member, and a neck portion The head portion includes a base end portion a distal end portion opposite to the base end portion a peripheral surface portion between the base end portion and the distal end portion and a slit formed on the distal end portion and the peripheral surface portion. The head portion has a shape tapered toward the distal end portion The base end portion is fixed to the neck portion. The neck portion connects the plate portion to the head portion.