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Related Experiment Videos

A multiple disk centrifugal pump as a blood flow device.

G E Miller1, B D Etter, J M Dorsi

  • 1Bioengineering Program, Texas A&M University, College Station 77843.

IEEE Transactions on Bio-Medical Engineering
|February 1, 1990
PubMed
Summary

A novel Tesla viscous flow turbine pump, adapted for pulsatile blood flow, demonstrated comparable physiological pressures and flows to traditional pumps in artificial circulatory systems.

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Area of Science:

  • Biomedical Engineering
  • Cardiovascular Devices

Background:

  • Centrifugal pumps offer potential advantages for blood flow applications.
  • Developing pulsatile blood pumps is crucial for artificial circulatory support.

Purpose of the Study:

  • To evaluate the suitability of a modified Tesla viscous flow turbine as a pulsatile blood pump.
  • To compare its performance against a conventional pulsatile piston pump.

Main Methods:

  • A valveless centrifugal pump (Tesla viscous flow turbine) was modified for pulsatile operation.
  • Its performance was assessed in an artificial circulatory system against a Harvard Apparatus pump.
  • Varying frequency and systolic duration simulated physiological conditions.

Main Results:

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  • The pulsatile Tesla pump generated physiological pressures and flows.
  • Its performance was comparable to the Harvard Apparatus pulsatile piston pump.
  • The pump demonstrated efficacy across varied physiological parameters.

Conclusions:

  • The modified Tesla viscous flow turbine is a viable option for pulsatile blood flow.
  • This valveless centrifugal pump design shows promise for future cardiovascular device development.