Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Adhesive Polyurethane-based Capacitive Electrode for Patch-type Wearable Electrocardiogram Measurement System

패치형 웨어러블 심전도 측정 시스템을 위한 접착성 폴리우레탄 기반의 용량성 전극

  • Lee, Jeong Su (Interdisciplinary Program for Bioengineering, Graduate School, Seoul National University) ;
  • Lee, Won Kyu (Interdisciplinary Program for Bioengineering, Graduate School, Seoul National University) ;
  • Lim, Yong Gyu (Department of Oriental Biomedical Engineering, Sangji University) ;
  • Park, Kwang Suk (Interdisciplinary Program for Bioengineering, Graduate School, Seoul National University)
  • 이정수 (서울대학교 대학원 협동과정 바이오엔지니어링 전공) ;
  • 이원규 (서울대학교 대학원 협동과정 바이오엔지니어링 전공) ;
  • 임용규 (상지대학교 한방의료공학과) ;
  • 박광석 (서울대학교 대학원 협동과정 바이오엔지니어링 전공)
  • Received : 2014.09.20
  • Accepted : 2014.12.12
  • Published : 2014.12.30
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Abstract

Wearable medical device has been a resurgence of interest thanks to the development of technology and propagation of smart phone in recent years. Various types of wearable devices have been introduced and available in market. Capacitive coupled electrode which measures electrocardiogram over cloth is able to be applied wearable device. In previous approaches of capacitive electrode, they need proper pressure for stable contact of the electrode to body surface. However, wearable device that gives pressure on body surface is not suitable for long-term monitoring. In this study, we proposed adhesive polyurethane-based capacitive electrode for patch-type wearable electrocardiogram (ECG) monitoring device. Self-adhesive polyurethane make the electrode and whole system be adhered to the surface of skin without any pressure. The patch-type system is consisted of analog filter, analog-to-digital converter and wireless transmission module and designed to be attached on the body as a patch. To validate the feasibility of the developed system, we measured ECG signal in stable and active state and extracted heart rate. Therefore, we observed skin response after long-term attachment for biocompatibility of the adhesive polyurethane and adhesive strength of it. The result shows the possibility of applying the developed system for ECG monitoring in real-life.

Keywords

References

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