Introducing an adaptive robust controller for artificial heart

Ravanshadi, S ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.1109/BioRob.2012.6290817
  3. Publisher: 2012
  4. Abstract:
  5. Prolonged and uncontrolled high shear stresses and turbulence can cause hemolysis, while alternating and low-level stresses may contribute to platelet activation and thrombus formation. Such deficiencies are reported for Total Artificial Heart (TAH) systems which are generally not fully capable of dynamic adaptation to sudden pressure and volume changes. This study introduces an adaptive robust controller for a linear motor based TAH (LMTAH) which overcomes such shortcomings. Proposed controller performance is compared with simulated natural heart in normal and stressed physiological conditions. Application of adaptive robust control results in flows with less stress variation and recirculation, thereby reducing the possibility of blood clot formation and hemolysis
  6. Keywords:
  7. Adaptive robust control ; Adaptive robust control ; Adaptive robust controllers ; Blood clot formation ; Blood flow ; Controller performance ; Dynamic adaptations ; Physiological condition ; Platelet activation ; Recirculations ; Stress variations ; Thrombus formation ; Total artificial hearts ; Volume change ; Artificial heart ; Blood ; Blood pressure ; Robust control
  8. Source: Proceedings of the IEEE RAS and EMBS International Conference on Biomedical Robotics and Biomechatronics, 24 June 2012 through 27 June 2012 ; June , 2012 , Pages 413-418 ; 21551774 (ISSN) ; 9781457711992 (ISBN)
  9. URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6290817