Bio-signal Electrode Assembly with Spring-Clamp Fastening
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Solution Overview
Problem
Conventional electrode assemblies for bio-signal measurement require a thicker body to accommodate a fastening stud, which increases the thickness and discomfort when attached to the human body, and lack an efficient mechanism for secure attachment and detachment.
Innovation Solution
An electrode assembly with a fastening member featuring a spring groove and aperture that clamps a fastening stud from a patch, allowing for secure attachment and easy detachment, while maintaining a minimal thickness due to the fastening member being thinner than the stud.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the body thickness is increased to accommodate the fastening stud, then the fastening stud can be securely attached, but the electrode assembly becomes thicker and less comfortable when attached to the human body
Solution Approach 1:
The electrode assembly is divided into separate functional components: a thin body for comfort, a fastening member for attachment, and a spring for clamping. This segmentation allows each component to be optimized independently, resolving the contradiction between thin body design and secure fastening capability.
Solution Approach 2:
The spring is nested within the fastening member structure, with the spring groove integrated into the fastening member. This nesting allows the fastening mechanism to be compact while maintaining sufficient clamping force, enabling secure attachment without increasing overall assembly thickness.
2Reliability
If a conventional fastening mechanism is used, then secure attachment is achieved, but the device complexity increases due to additional components and assembly steps
Solution Approach 1:
The fastening member integrates multiple functions into a single component: it provides the structural base, contains the spring groove for the spring, and forms the aperture for stud reception. This merging reduces part count and assembly complexity while maintaining secure attachment capability.
Solution Approach 2:
The spring serves multiple functions: it provides clamping force for secure attachment, acts as a mechanical latch for easy detachment, and compensates for thickness variations between different patches and electrode assemblies. This multi-functionality reduces the need for additional specialized components.
3Ease of operation
If the body thickness is minimized for comfort, then comfort is improved, but the ability to accommodate and securely attach the fastening stud is compromised
Solution Approach 1:
The fastening capability is achieved not by increasing body thickness in the vertical dimension, but by utilizing the horizontal dimension through the aperture and the clamping action of the spring. This dimensional shift allows thin body design while maintaining secure fastening.
Solution Approach 2:
The spring acts as an intermediary element between the thin body and the fastening stud, providing the necessary clamping force without requiring the body itself to be thick. The spring mediates the interaction, enabling secure attachment while preserving body thinness for comfort.
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
Enables a comfortable and secure attachment of the electrode assembly to the body with efficient bio-signal transfer, minimizing the assembly's thickness and part count, and facilitating easy detachment for reuse.
Implementation Method 1
a spring seated in the spring groove, wherein the spring is configured to clamp the fastening stud received in the aperture to the fastening member
Data Source
AI summary
An electrode assembly for measuring bio-signals includes a body, a fastening member extending from the body and provided on one side of the body, the fastening member including a spring groove formed therein and an aperture penetrating therethrough, and a spring inserted into the spring groove. The aperture receives a fastening stud of a patch which is supplied from outside. The spring compresses the fastening stud received in the aperture such that the fastening member fixes the fastening stud thereto.