Modeling the Design Characteristics of Woven Textile Electrodes for long-Term ECG Monitoring

Area of Science:

• Biomedical Engineering
• Materials Science

Background:

• Continuous electrocardiograph (ECG) monitoring is crucial for proactive healthcare and performance optimization.
• Conductive textile electrodes are emerging as an alternative to traditional gel electrodes but face design challenges.
• The relationship between textile electrode manufacturing parameters and ECG measurement quality is poorly understood.

Purpose of the Study:

• To develop a parameterized model for woven textile ECG electrodes.
• To address the challenge of optimizing textile electrode design for improved ECG capture.
• To bridge the gap in understanding textile electrode performance for long-term ECG monitoring.

Main Methods:

• Applied the skin-electrode interface circuit model to woven electrodes.
• Constructed a parameterized model of the ECG system.
• Utilized an iterative MATLAB optimizer with measured data to solve for unknown system parameters.

Main Results:

• Confirmed that yarn conductivity and total conductive area significantly reduce skin-electrode impedance.
• Identified electrode skin pressure and moisture as factors requiring further investigation.
• Provided a framework for understanding and optimizing woven textile electrode performance.

Conclusions:

• The developed model and analysis method enable better design and manufacturing of textile electrodes.
• Optimized textile electrodes can meet the demands for long-term ECG monitoring.
• This research facilitates the advancement of wearable health monitoring technologies.