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Development of a Novel Noncontact ECG Electrode by MEMS Fabrication Process
Mathias, Dakurah Naangmenkpeong,Park, Jaesoon,Kim, Eungbo,Joung, Yeun-Ho The Korean Institute of Electrical and Electronic 2016 Transactions on Electrical and Electronic Material Vol.17 No.3
Contact electrodes pose threats like inflammation, metal poisoning, and allergic reaction to the user during long term ECG procedure. Therefore, we present a novel noncontact electrocardiographic electrode designed through microelectromechanical systems (MEMS) process. The proposed ECG electrode consists of small inner and large outer circular copper plates separated by thin insulator. The inner plate enables capacitive transduction of bio-potential variations on a subject’s chest into a voltage that can be processed by a signal processing board, whereas the outer plate shields the inner plate from environmental electromagnetic noise. The electrode lead wires are also coaxially designed to prevent cables from coupling to ground or electronic devices. A prototype ECG electrode has an area of about 2.324 cm<sup>2</sup>, is very flexible and does not require power to operate. The prototype ECG electrode could measure ECG at about 500 um distance from the subject’s chest.
Development of a Novel Noncontact ECG Electrode by MEMS Fabrication Process
Yeun-Ho Joung,Dakurah Naangmenkpeong Mathias,Jaesoon Park,Eungbo Kim 한국전기전자재료학회 2016 Transactions on Electrical and Electronic Material Vol.17 No.3
Contact electrodes pose threats like inflammation, metal poisoning, and allergic reaction to the user during longterm ECG procedure. Therefore, we present a novel noncontact electrocardiographic electrode designed throughmicroelectromechanical systems (MEMS) process. The proposed ECG electrode consists of small inner and large outercircular copper plates separated by thin insulator. The inner plate enables capacitive transduction of bio-potentialvariations on a subject’s chest into a voltage that can be processed by a signal processing board, whereas the outerplate shields the inner plate from environmental electromagnetic noise. The electrode lead wires are also coaxiallydesigned to prevent cables from coupling to ground or electronic devices. A prototype ECG electrode has an area ofabout 2.324 cm2, is very flexible and does not require power to operate. The prototype ECG electrode could measureECG at about 500 um distance from the subject’s chest.