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Related Experiment Videos

Control of the artificial heart

G S Allen1, K D Murray, D B Olsen

  • 1Artificial Heart Research Laboratory, University of Utah, Salt Lake City, USA.

ASAIO Journal (American Society for Artificial Internal Organs : 1992)
|November 1, 1996
PubMed
Summary

Controlling an artificial heart (AH) requires dynamic adjustments based on multiple physiological signals. Combining these inputs ensures reliable artificial heart function for total implantation.

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Area of Science:

  • Biomedical Engineering
  • Cardiovascular Engineering
  • Implantable Devices

Background:

  • Artificial hearts (AHs) lack native physiologic feedback.
  • Current AH control is either passive or dynamic.
  • Passive control offers limited response to bodily demands.

Purpose of the Study:

  • To explore dynamic control strategies for artificial hearts.
  • To identify essential parameters for effective AH function.
  • To address challenges in achieving permanent, totally implantable artificial hearts.

Main Methods:

  • Review of passive and dynamic artificial heart control mechanisms.
  • Analysis of metabolic and hemodynamic signals for AH regulation.
  • Discussion of controller design incorporating multiple input signals.

Main Results:

  • A single signal is insufficient for accurate AH pumping adjustments.
  • Dynamic control necessitates sensing and integrating multiple physiologic parameters.
  • Reliable and flexible AH function depends on combined input signals.

Conclusions:

  • Effective artificial heart control requires dynamic, multi-parameter input.
  • Integrating diverse signals into controller design is crucial.
  • Advancing permanent, totally implantable artificial hearts hinges on sophisticated control strategies.

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