Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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A Study On the Improvement of Atrial Pressures Balancing Performance of Total Artificial Heart

완전이식형 인공심장의 심방압 균형성능의 개선에 관한 연구

  • Choi, Won-Woo (Department of Biomedical Engineering, College of Engineering, Seoul National University) ;
  • Park, Seong-Keun (Department of Biomedical Engineering, College of Medicine, Seoul National University) ;
  • Jo, Yung-Ho (Department of Biomedical Engineering, College of Medicine, Seoul National University) ;
  • Choi, Jae-Soon (Department of Biomedical Engineering, College of Engineering, Seoul National University) ;
  • Lee, Dong-Joon (Department of Biomedical Engineering, College of Engineering, Seoul National University) ;
  • Kim, Hee-Chan (Department of Biomedical Engineering, College of Medicine, Seoul National University) ;
  • Min, Byoung-Goo (Department of Biomedical Engineering, College of Medicine, Seoul National University)
  • 최원우 (서울대학교 대학원 협동과정 의용생체공학) ;
  • 박성근 (서울대학교 의과대학 의공학교실) ;
  • 조영호 (서울대학교 의과대학 의공학교실) ;
  • 최재순 (서울대학교 대학원 협동과정 의용생체공학) ;
  • 이동준 (서울대학교 대학원 협동과정 의용생체공학) ;
  • 김희찬 (서울대학교 의과대학 의공학교실) ;
  • 민병구 (서울대학교 의과대학 의공학교실)
  • Published : 1995.11.17
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Abstract

A new atrial pressures balancing method for moving actuator total artificial heart(TAH) without an extra compliance chamber is developed. The structural characteristics of the pendulous moving actuator have made it possible to compensate the left and right pump output difference by utilizing the interventricular air space as an internal compliance chamber in a pump housing. Furthermore, the balancing performance is increased through the improvement of the flexibility of part of the polyurathane housing. However, the increase of the flexibility of the housing causes a little loss of the cardiac output due to the reduction of active filling performance. In this paper, a good condition between the balance and pump output performance is evaluated by adjusting the air volume in the interventricular space through a series of in vitro experiment.

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