DocumentCode :
3051319
Title :
Miniature electrocardiography sensor using a flexible printed circuit and MEMS technology
Author :
Kim, Hong-Lae ; Kim, Yong-Ho ; Kim, Yong-Jun
Author_Institution :
Microsyst. Lab., Yonsei Univ., Seoul
fYear :
2008
fDate :
20-22 Aug. 2008
Firstpage :
545
Lastpage :
550
Abstract :
This paper presents the development of flexible electrocardiography (ECG) sensors using both a flexible printed circuit (FPCB) and microelectromechanical systems (MEMS) technology. By using FPCB technology, polymer-based ECG sensors of a bipolar Laplacian-type electrode were fabricated and their ECG measurement capability was examined by both implanting the proposed sensors into subcutaneous fat and attaching the sensor to the skin of a dog. The bipolar ECG sensors, at three different sensing electrode diameters (4, 2 and 1 mm), were then miniaturized using MEMS technology. The MEMS ECG sensors had a hook-shaped sensing electrode and a reference electrode. One MEMS ECG sensor was attached to human skin. The ECG of a human was measured at one point using both a commercial patch-type ECG electrode and the proposed MEMS ECG sensor. Performance of the measured ECG by the MEMS ECG sensor was then compared with ECG measured by the commercially available ECG electrode. The correlation factor, which indicates the similarity in magnitude and wave patterns of the two measured ECGs, was 0.977, 0.86, 0.85 for 4, 2, and 1 mm respectively. Although the correlation factor decreases with decreasing sensing electrode diameter, we have demonstrated that ECG could be measured using a quasi-single-electrode sensor at just one point.
Keywords :
biomedical electrodes; biosensors; correlation methods; electrocardiography; flexible electronics; microsensors; printed circuits; MEMS technology; bipolar Laplacian-type electrode; correlation factor; flexible printed circuit; miniature electrocardiography sensor; polymer-based ECG sensors; Electrocardiography; Electrodes; Flexible printed circuits; Humans; Joining processes; Microelectromechanical systems; Micromechanical devices; Polymers; Sensor systems; Skin;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Multisensor Fusion and Integration for Intelligent Systems, 2008. MFI 2008. IEEE International Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-2143-5
Electronic_ISBN :
978-1-4244-2144-2
Type :
conf
DOI :
10.1109/MFI.2008.4648052
Filename :
4648052
Link To Document :
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