Journal of Korea Multimedia Society (한국멀티미디어학회논문지)

Korea Multimedia Society (한국멀티미디어학회)
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Design of Capacitive Sensors for Blood Vessel Condition Using FEA Simulation; For Developing of an Implantable Telemetry System to Monitoring the Arterial Change

FEA 시뮬레이션을 이용한 혈관 상태 측정용 커패시티브 센서 설계; 체내 동맥 혈관 변화 모니터링이 가능한 이식형 텔레메트리 시스템 개발을 위한

  • Kang, So Myoung (Dept of Biomedical Eng, Graduate School of Medicine, Keimyung University) ;
  • Lee, Jae Ho (Dept of Anatomy, School of Medicine, Keimyung University) ;
  • Wei, Qun (Dept of Biomedical Eng, School of Medicine, Keimyung University)
  • Received : 2019.09.18
  • Accepted : 2019.10.23
  • Published : 2019.11.30
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Abstract

For developing a wireless implantable device to monitoring the artery variation in real-time. The concept of a special vessel variation measurement capacitive sensor is presented in this paper. The sensor consists of two part; main sensor to measuring the arterial variation, and reference sensor is used to improve the accuracy of the capacitance value variation. Before sensor manufacture, a model of the sensor attached on the artery was designed in 3D to conduct in the FEA simulation to validate the validity and feasibility of the idea. The artery model was designed as layered structures and made of collagenous soft tissues with intima inside, followed by the media and the adventitia. Also, a grease layer was designed in the inner of the arterial wall to imitate the clogged arteries. The simulation was divided into two parts; sensor performance test by changing the diameter of the grease layer, and arterial wall tension test by changing the blood pressure. As the simulation results, the capacitance value measured by the proposed sensor is decreased follow the diameter of the grease increased. Also, large elastic deformation of the arterial wall since changing the blood pressure has been observed.

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