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A simple cardiovascular system simulator: design and performance.

W M Swanson, R E Clark

    Journal of Bioengineering
    |January 1, 1977
    PubMed
    Summary
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    A novel simulator models cardiovascular devices and measurements. It accurately reproduces pressure pulse waves using a piston pump and specialized rubber tubes, aiding prosthetic valve and blood pressure device research.

    Area of Science:

    • Biomedical Engineering
    • Cardiovascular Physiology
    • Medical Device Simulation

    Background:

    • Accurate simulation of cardiovascular dynamics is crucial for developing and testing medical devices.
    • Existing simulators may not adequately replicate complex physiological pressure pulse waves.
    • Prosthetic aortic valves, balloon assist devices, and blood pressure measurement techniques require reliable performance evaluation.

    Purpose of the Study:

    • To construct and evaluate a simple simulator for cardiovascular applications.
    • To assess the simulator's capability in modeling pressure pulse waves.
    • To utilize the simulator for performance studies of cardiovascular devices and measurements.

    Main Methods:

    • A direct drive piston pump was employed as the primary driver.

    Related Experiment Videos

  • Elastic soft rubber tubes with distributed resistances were used to model pressure pulse waves.
  • Tube segments with decreasing diameters simulated pressure pulse amplitude amplification.

    • Main Results:

    • The simulator successfully modeled normal and diseased pressure pulse waves.
    • Satisfactory proximal pressure pulse shapes were achieved using a uniform diameter soft rubber tube.
    • The system allowed for performance studies of prosthetic aortic valves, balloon assist devices, and blood pressure measurements.

    Conclusions:

    • The developed simulator is a viable tool for evaluating cardiovascular devices and physiological measurements.
    • The simulator effectively replicates key aspects of cardiovascular pressure dynamics.
    • This simple yet effective simulator can advance research in cardiovascular prosthetics and diagnostics.