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Optimal control system for the intra-aortic balloon pump

  • Clinical Engineering
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Abstract

An optimal control system for the intra-aortic balloon pump (IABP) is presented. Control of the IABP is based on a performance index formulated to reflect a tradeoff between maximising cardiac oxygen supply and minimising cardiac oxygen consumption. In the performance index, mean diastolic pressure (MDP) was used to represent oxygen availability and peak systolic pressure (PSP) was used to represent oxygen consumption. An algorithm, implemented using an 8-bit microcomputer, changes the deflation time of the IABP to maximise this performance index by using an optimisation technique that employs both a search and an approximation. The search produces three equally spaced points which define a region that includes the maximum of the performance index. From these points, the optimum deflation time is estimated by a quadratic approximation. The algorithm has been successfully tested using performance index curves generated by computer simulations.

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Authors and Affiliations

  1. Biomedical Engineering & Science Institute, Drexel University, 19104, Philadelphia, PA, USA

    B. Smith, T. W. Moore &  D. Jaron

  2. Biomedical Engineering Program, School of Engineering, Tel Aviv University, Tel Aviv, Israel

    O. Barnea

Authors
  1. B. Smith
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  2. O. Barnea
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  3. T. W. Moore
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  4. D. Jaron
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Smith, B., Barnea, O., Moore, T.W. et al. Optimal control system for the intra-aortic balloon pump. Med. Biol. Eng. Comput. 29, 180–184 (1991). https://doi.org/10.1007/BF02447105

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  • DOI: https://doi.org/10.1007/BF02447105

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