Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Implementation of a Circuit for the Enhancement of Signal to Noise Ratios of Current Signal in a Artificial Heart

인공심장 전류 신호의 신호대 잡음비 개선을 위한 회로 구현

  • Choi, J.H. (School of Electrical Eng., College of Eng., Seoul National Univ.) ;
  • Lee, J.H. (School of Electrical Eng., College of Eng., Seoul National Univ.) ;
  • Choi, W.W. (Dept. of Biomedical Eng., College of Eng., Seoul National Univ.) ;
  • Ahn, J.M. (Dept. of Biomedical Eng., College of Med. Seoul National Univ.) ;
  • Kim, W.E. (School of Electrical Eng., College of Eng., Seoul National Univ.) ;
  • Lee, J.J. (Dept. of Biomedical Eng., College of Eng., Seoul National Univ.) ;
  • Om, K.S. (Dept. of Biomedical Eng., College of Eng., Seoul National Univ.) ;
  • Choi, J.S. (Dept. of Biomedical Eng., College of Eng., Seoul National Univ.) ;
  • Park, S.K. (Dept. of Biomedical Eng., College of Med. Seoul National Univ.) ;
  • Cho, Y.H. (Dept. of Biomedical Eng., College of Med. Seoul National Univ.) ;
  • Kim, H.C. (Dept. of Biomedical Eng., College of Eng., Seoul National Univ.) ;
  • Min, B.G. (Dept. of Biomedical Eng., College of Med. Seoul National Univ.)
  • 최종훈 (서울대학교 공과대학 전기공학부) ;
  • 이정훈 (서울대학교 공과대학 전기공학부) ;
  • 최원우 (서울대학교 공과대학 의공학과) ;
  • 안재목 (서울대학교 의과대학 의공학과) ;
  • 김욱은 (서울대학교 공과대학 전기공학부) ;
  • 이종진 (서울대학교 공과대학 의공학과) ;
  • 엄경식 (서울대학교 공과대학 의공학과) ;
  • 최재순 (서울대학교 공과대학 의공학과) ;
  • 박성근 (서울대학교 의과대학 의공학과) ;
  • 조영호 (서울대학교 의과대학 의공학과) ;
  • 김희찬 (서울대학교 공과대학 의공학과) ;
  • 민병구 (서울대학교 의과대학 의공학과)
  • Published : 1996.11.15
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Abstract

We have developed a ground-isolation circuit in order to reduce the noise of the internal controller system for the total artificial heart(TAH) and ventricular assist device(VAD). Using the ground-isolation technique, we could transmit the analog target signal to other pheriperal device including IBM PC via RS232C and polygraph, with no noise. Experimental results of VAD showed that there was less impulsive noise in current signal which caused in our previous conventional system. Therefore it could be proved that implementation of isolation technique is very effective to improve the signal to noise ratios of analog signal transmission for TAH or VAD.

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