Embroidered electrode with silver/titanium coating for long-term ECG monitoring

Area of Science:

• Biomedical Engineering
• Materials Science
• Wearable Technology

Background:

• Long-term electrocardiogram (ECG) monitoring requires skin-friendly electrodes that prevent artifacts during patient movement and dry skin conditions.
• Current adhesive gel electrodes are unsuitable for prolonged, dynamic ECG monitoring applications.

Purpose of the Study:

• To develop and evaluate a novel textile electrode for reliable, long-term ECG monitoring.
• To overcome the limitations of existing electrodes in terms of skin irritation, artifact generation, and performance under varying physiological conditions.

Main Methods:

• Development of an embroidered textile electrode using plasma-coated polyethylene terephthalate yarn with silver for conductivity and titanium for passivation.
• Integration of two textile electrodes into a breast belt with an integrated reservoir for low-level water vapor moisturization.
• Evaluation of electrode performance for ECG monitoring during rest and motion.

Main Results:

• The developed textile electrodes demonstrate excellent electrode chemistry due to the combination of silver, titanium, and water vapor.
• The system provides artifact-free ECG leads even with dry skin and body movement.
• Successful long-term ECG monitoring was achieved in both resting and moving patients.

Conclusions:

• The novel embroidered textile electrode system is a viable solution for long-term, high-quality ECG monitoring.
• This technology addresses the shortcomings of conventional electrodes, enabling continuous cardiac monitoring in diverse patient scenarios.
• The combination of advanced materials and a unique hydration mechanism offers significant potential for wearable healthcare devices.