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[Simulation of the heart action: a computer controlled module for the generation of variable flow patterns].
R Huttary1, M Verius, G Bodner
1Universitäts-Klinik für Radiodiagnostik Innsbruck, Germany. mura@austromail.at
Ultraschall in Der Medizin (Stuttgart, Germany : 1980)
|August 29, 2001
Summary
A computer-controlled pump was developed to generate reproducible, variable flow patterns for simulating hemodynamics in physiological models. This tool enables detailed studies of dynamic processes and long-term hemodynamic research.
Area of Science:
- Biomedical Engineering
- Fluid Dynamics
- Medical Device Development
Context:
- Hemodynamics research requires accurate simulation of physiological blood flow.
- Existing methods may lack reproducibility or control over flow patterns.
- Understanding dynamic physiological processes necessitates precise flow simulation.
Purpose:
- To develop a computer-controlled pump system for generating variable and reproducible flow patterns.
- To simulate hemodynamic conditions in physiological model circuits with high fidelity.
- To enable real-time control of signal parameters for dynamic flow studies.
Summary:
- A novel computer-controlled pump module was engineered using an arbitrary function generator and PC-based profile creation.
- Magnetic coupling of a DC motor to a geared pumphead ensures vibration-free, disturbance-free flow profiles.
- Doppler sonography and pressure sensors validated the generated flow patterns against simulated physiological conditions.
Impact:
- Facilitates high-reproducibility studies of physiological and pathological flow models.
- Enables detailed investigation of dynamic processes in hemodynamics.
- Supports long-term hemodynamic studies with precise, controllable flow simulations.