Wearable multilead ECG sensing systems using on-skin stretchable and breathable dry adhesives

作     者：Yingxi Xie Longsheng Lu Wentao Wang Huan Ma Yingxi Xie;Longsheng Lu;Wentao Wang;Huan Ma

作者机构：School of Mechanical and Automotive EngineeringSouth China University of TechnologyGuangzhou 510641China College of Automotive and Mechanical EngineeringChangsha University of Science and TechnologyChangsha 410114China Guangdong Cardiovascular InstituteGuangdong Provincial People’s HospitalGuangzhou 510080China 

出 版 物：《Bio-Design and Manufacturing》 (生物设计与制造（英文）)

年 卷 期：2024年第7卷第2期

页      面：167-180页

核心收录：

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 08[工学] 

基　　金：supported by the Natural Science Foundation of Guangdong Province,China(No.2021B1515020087) the National Natural Science Foundation of China(No.51905178) the Climbing Program Foundation of Guangdong Province(No.pdjh2022a0024). 

主　　题：Multilead electrocardiogram Dry electrodes Wearable electronics Wireless transmission 

摘      要：Electrocardiogram(ECG)monitoring is used to diagnose cardiovascular diseases,for which wearable electronics have attracted much attention due to their lightweight,comfort,and long-term use.This study developed a wearablemultilead ECG sensing system with on-skin stretchable and conductive silver(Ag)-coated fiber/silicone(AgCF-S)dry adhesives.Tangential and normal adhesion to pigskin(0.43 and 0.20 N/cm2,respectively)was optimized by the active control of fiber density and mixing ratio,resulting in close contact in the electrode–skin interface.The breathableAgCF-S dry electrodewas nonallergenic after continuous fit for 24 h and can be reused/cleaned(100 times)without loss of adhesion.The AgCF encapsulated inside silicone elastomers was overlapped to construct a dynamic network under repeated stretching(10%strain)and bending(90°)deformations,enabling small intrinsic impedance(0.3,0.1 Hz)and contact impedance variation(0.7 k)in high-frequency vibration(70 Hz).All hard/soft modules of the multilead ECG system were integrated into lightweight clothing and equipped with wireless transmission for signal visualization.By synchronous acquisition of I–III,aVR,aVL,aVF,and V4 lead data,the multilead ECG sensing system was suitable for various scenarios,such as exercise,rest,and sleep,with extremely high signal-to-noise ratios.