Electrode With Expandable Portion For Body Movement
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Solution Overview
Problem
Electrodes for electrical stimulation therapy tend to detach when used on movable parts of the human body, and existing designs with separate electrodes are difficult to attach easily.
Innovation Solution
A flat sheet electrode with expandable/contractible portions along a virtual axial line, allowing the electrodes to adjust and secure during body movement, and a design with a protruding portion to hold adhesive pads in place, facilitating easy attachment and positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate electrodes are used, then detachment resistance is improved, but attachment ease deteriorates
Solution Approach 1:
The electrode sheet is segmented into a body portion and a protruding portion, where the protruding portion acts as an independent positioning element that guides electrode placement while the body portion maintains electrical function. This segmentation allows the electrodes to be pre-positioned on the sheet, improving attachment ease while maintaining detachment resistance through the integrated design.
2Manufacturing precision
If electrodes are fixed rigidly, then positioning precision is improved, but adaptability to body movement deteriorates
Solution Approach 1:
The electrode sheet incorporates a flexible protruding portion that can dynamically adjust its shape and position in response to body movements. This dynamic characteristic allows the electrode to maintain precise positioning on movable body parts while adapting to changes in body contour, resolving the contradiction between positioning precision and adaptability.
Solution Approach 2:
The electrode sheet is constructed as a thin, flexible film that can conform to the contours of movable body parts. The protruding portion, being flexible, can deform with body movements while maintaining its positioning function, allowing the electrode to remain securely attached to moving surfaces without losing positioning precision.
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 electrode remains securely attached during human body movement and is easy to position, reducing detachment and improving attachment ease.
Implementation Method 1
the sheet body includes an expandable/contractible portion that is formed on a virtual axial line extending between the one pair of flat electrodes and is freely expandable/contractible in a direction intersecting the virtual axial line
Data Source
AI summary
An electrode for electrical stimulation therapy includes a sheet body of flat shape having a first surface facing a skin of a human body and a second surface at an opposite side to the first surface and at least one pair of flat electrodes that are provided at the first surface side of the sheet body and are mutually separated and the sheet body includes an expandable/contractible portion that is formed on a virtual axial line extending between the pair of flat electrodes and is expandable/contractible in a direction intersecting the virtual axial line. The electrical stimulation therapeutic device includes a device body and the electrode for electrical stimulation therapy electrically connected to the device body.