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Arthropump with peristaltic effect and pulsatile flow.

L von Segesser, A Jeanjacquot, P Meyer

    Journal of Biomedical Engineering
    |April 1, 1984
    PubMed
    Summary
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    This novel pump uses a peristaltic effect for pulsatile flow, enabling gentle transport of large particles and solids in liquids. Its design is ideal for handling sensitive biological materials and viscous fluids.

    Area of Science:

    • Biomedical Engineering
    • Fluid Dynamics
    • Mechanical Engineering

    Background:

    • Traditional pumps often struggle with delicate biological samples, high viscosity fluids, or abrasive materials.
    • The need for gentle yet effective fluid transport systems is critical in cell and tissue separation.
    • Existing pump designs may have moving parts in the flow path, leading to potential damage or contamination.

    Purpose of the Study:

    • To introduce a novel pump design with a peristaltic effect and pulsatile flow.
    • To highlight the pump's unique features, including occlusive/non-occlusive pumping and no moving parts in the flow section.
    • To demonstrate the pump's capability in handling challenging fluids and materials.

    Main Methods:

    • Description of a novel pump design incorporating a compressible drive medium.

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  • Implementation of a peristaltic mechanism to achieve pulsatile flow.
  • Testing the pump's performance with various fluid types, including those with high solids content, viscosity, and abrasives.

    • Main Results:

    • The pump demonstrates a peristaltic effect and pulsatile flow, allowing for controlled fluid transport.
    • Absence of moving parts within the flow section ensures gentle handling of pumped substances.
    • The design successfully accommodates the 'individual' transport of large particles, high solids proportions, and viscous or abrasive liquids.

    Conclusions:

    • The novel pump design offers a versatile solution for fluid handling challenges.
    • Its suitability for sensitive applications, such as cell and tissue separation, is confirmed.
    • The pump's ability to manage difficult fluids opens new possibilities in various industrial and biomedical fields.