Electrocardiographic Belt With Detachable Cap Electrodes
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Solution Overview
Problem
Electrocardiographic measurement apparatuses face challenges in detecting electrocardiographic signals with a small number of electrodes due to varying circumferential lengths of upper arms and individual differences in electric potential distribution, leading to inconsistent signal detection intensity.
Innovation Solution
A belt with a combination of base electrodes and detachable cap electrodes, where cap electrodes can be selectively positioned to optimize signal detection, enhancing intensity by arranging them at high signal detection positions, and are securely fixed using various methods such as insertion, magnetic force, or screwing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of electrodes is increased to accommodate different upper arm circumferential lengths, then adaptability to various users is improved, but device complexity and circuit processing become complicated
Solution Approach 1:
The electrode system is divided into two segments: base electrodes that are fixed to the belt body and cap electrodes that are detachable and can be selectively attached. This segmentation allows the base electrodes to remain constant in number while the cap electrodes can be configured differently to accommodate various users, thereby reducing circuit complexity while maintaining adaptability.
Solution Approach 2:
The base electrodes serve multiple functions: they provide a stable mounting structure and electrical connection points regardless of the specific user. The cap electrodes can be selectively attached to different base electrodes to create various electrode configurations suitable for different upper arm circumferential lengths, making the system universally applicable to various users without requiring a different number of base electrodes for each user.
2Device complexity
If the number of electrodes is reduced to simplify the circuit, then device complexity is decreased, but measurement precision and signal detection intensity vary due to individual differences in electric potential distribution
Solution Approach 1:
The electrode configuration is made dynamic through the detachable cap electrodes that can be selectively attached to different base electrodes. This allows the system to adapt the electrode positions to match the individual's electric potential distribution, thereby maintaining measurement precision and signal detection intensity while using a reduced number of electrodes compared to fixed comprehensive electrode arrays.
Solution Approach 2:
The cap electrodes can be selectively positioned at specific locations along the belt to match the local electric potential distribution characteristics of each individual. This local optimization ensures that the electrodes are placed at positions where they can effectively detect the electrocardiographic signal, maintaining measurement precision even with fewer electrodes.
3Ease of operation
If cap electrodes are made detachable and attachable to base electrodes, then ease of operation and selective positioning is improved, but device complexity increases due to the two-component electrode system
Solution Approach 1:
The electrode system is divided into two functional segments: base electrodes that provide stable mounting and electrical connections, and cap electrodes that enable selective positioning. This segmentation allows the complex functionality of selective electrode placement to be achieved while maintaining a relatively simple overall structure, as the base electrodes remain fixed and only the cap electrodes require attachment/detachment operations.
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 suitable detection of electrocardiographic signals with a reduced number of electrodes, improving signal intensity and simplifying circuit processing by allowing flexible electrode placement based on individual anatomy.
Implementation Method 1
the cap electrodes are fixed to the base electrodes selectively and detachably by inserting, magnetic force, or screwing
Data Source
AI summary
A belt used in an electrocardiographic measurement apparatus includes a belt body to be wrapped around a living body, three or more base electrodes disposed in a longitudinal direction of the belt body, and two or more cap electrodes detachable and attachable to the base electrodes and smaller in number than the number of base electrodes.