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Rotary mechanical circulatory support systems.

Milad Hosseinipour1,2, Rajesh Gupta3, Mark Bonnell4

  • 1Dynamic and Smart Systems Laboratory, The University of Toledo, Toledo, OH, USA.

Journal of Rehabilitation and Assistive Technologies Engineering
|June 13, 2019
PubMed
Summary
This summary is machine-generated.

This paper surveys technological advances in rotary mechanical circulatory support systems, focusing on continuous-flow ventricular assist devices. It details flow regimes, bearing mechanisms, and design characteristics to guide engineers and researchers.

Keywords:
Assistive technologybiomedical devicesheart failurelife support systemsmechanical circulatory supportorthoticsrehabilitation devicesventricular assistive device

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Area of Science:

  • Biomedical Engineering
  • Mechanical Engineering

Background:

  • Rotary mechanical circulatory support systems are crucial for treating heart failure.
  • Continuous-flow ventricular assist devices (CF-VADs) represent a significant advancement in this field.

Purpose of the Study:

  • To provide a comprehensive overview of current trends and technological advancements in rotary mechanical circulatory support systems.
  • To serve as a reference for engineers and biomedical researchers by focusing on device technology rather than clinical outcomes.

Main Methods:

  • Categorization of pumps based on flow regime: axial flow, centrifugal flow, and mixed flow.
  • Examination of unique characteristics including structure, bearing mechanisms, impeller design, flow rate, and biocompatibility.
  • Summary of existing trends in flow regimes, flow control, and bearing mechanisms.

Main Results:

  • Detailed system specifications and applications of prominent CF-VADs are presented.
  • Unique attributes of different pump designs are unveiled.
  • Current limitations of existing technologies are discussed.

Conclusions:

  • The paper highlights key technological aspects of rotary mechanical circulatory support systems.
  • It identifies areas for future research and development to overcome current limitations.
  • This work aims to foster further improvements in rehabilitating devices for cardiovascular support.