Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Fuzzy Control Method for Balancing Left and Right Cardiac Output in Total Artificial Heart

  • Shin, In-Sun (Dept. of Biomedical Engineering, Institute of Biomedical Engineering) ;
  • Kim, Bo-Yeon (College of Medicine, Seoul National University) ;
  • Lee, Sang-Hoon (College of Medicine, Seoul National University) ;
  • Choi, Jin-Wook (College of Medicine, Seoul National University) ;
  • Min, Byoung-Goo (College of Medicine, Seoul National University)
  • Published : 1991.09.01
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Abstract

Balancing left/right cardiac output is essential for the automatic control of total artificial hearts(TAH). A fuzzy logic-based control method is presented. We use left atrial pressure( LAP) ann right a'rial pressure( RAP ) as indicators for left/right balancing. The fuzzy controller has four input variables which are measured LAP and RAP and their gradients. Desired variations in left cardiac output(LCO) and right cardiac output(RCO) are cal- culated to keep LAP and RAP within the Physiological limlts. Computer simulations were performed to adjust fuzzy membership functions for variables and verify this control method. Results from simulations showed that LAP and RAP returned to the physiological limits while AoP and PAP stayed within the physiological limits.

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References

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