Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Development of an Automatic External Biphasic Defibrillator System

Biphasic 자동형 제세동기 시스템 개발

  • Kim, Jung-Guk (Department of Electronic Engineering, College of Engineering, Myongji University) ;
  • Jung, Seok-Hoon (Department of Electronic Engineering, College of Engineering, Myongji University) ;
  • Kwon, Chul-Ki (Department of Electronic Engineering, College of Engineering, Myongji University) ;
  • Ham, Kwang-Geun (Department of Electronic Engineering, College of Engineering, Myongji University) ;
  • Kim, Eung-Ju (Department of Cardiology, College of Medicine, Korea University) ;
  • Park, Hee-Nam (Department of Cardiology, College of Medicine, Korea University) ;
  • Kim, Young-Hoon (Department of Cardiology, College of Medicine, Korea University) ;
  • Heo, Woong (Department of Electronic Engineering, College of Engineering, Myongji University)
  • 김정국 (명지대학교 공과대학 전자공학과) ;
  • 정석훈 (명지대학교 공과대학 전자공학과) ;
  • 권철기 (명지대학교 공과대학 전자공학과) ;
  • 함광근 (명지대학교 공과대학 전자공학과) ;
  • 김응주 (고려대학교 의과대학 순환기내과) ;
  • 박희남 (고려대학교 의과대학 순환기내과) ;
  • 김영훈 (고려대학교 의과대학 순환기내과) ;
  • 허웅 (명지대학교 공과대학 전자공학과)
  • Published : 2004.04.01
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Abstract

In this paper, an automatic external biphasic defibrillator that removes ventricular fibrillation efficiently with a low discharging energy has been developed. The system is composed of software including a fibrillation detection algorithm and a system control algorithm, and hardware including a high voltage charging/discharging part and a signal processing part. The stability of the developed system has been confirmed through continuous charging/discharging test of 160 times and the detection capability of the real-time fibrillation detection algorithm has been estimated by applying a total of 30 various fibrillation signals. In order to verify the clinical efficiency and safety, the system has been applied to five pigs before and after fibrillation inductions. Also, we have investigated the system efficiency in removing fibrillation by applying two different discharging waveforms, which have the same energy but different voltage levels.

본 연구에서는 심장 돌연사(sudden cardiac death, SCD)의 주된 원인인 심실세동(ventricular fibrillation)을 기존의 monophasic 제세동기와는 달리 낮은 에너지에서 효율적으로 제거할 수 있는 biphasic 자동형 제세동기를 개발하였다. 개발한 제세동기는 고전압 충 $.$ 방전부와 신호 처리부의 하드웨어와 세동검출 알고리즘과 시스템 제어 알고리즘의 소프트웨어로 구성하였고, 160번의 연속적인 충 $.$ 방전 테스트를 통하여 안정성을 확인하였으며, ECC simulator에서 발생되는 6종의 총 30가지 세동신호에 실시간 세동점출 알고리즘을 적용하여 검출능력을 평가하였다 또한 그 시스템의 임상적 효용성과 안전성을 검증하기 위하여 5마리의 돼지를 대상으로 시스템의 적절한 세동 검출 및 세동 제거 능력을 실험하였고 그 후 시스템의 효용성을 향상시키기 위한 연구로 동일한 에너지를 다른 전압 레벨에서 방전시켜 이에 따른 제세동 효율을 조사하였다.

Keywords

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