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Related Experiment Videos

Assisted circulation for end-stage chronic heart failure

D Liotta1

  • 1Consejo Nacional de Investigaciones Cientificas Y Tecnicas, Facultad de Medicine, Universidad de Morón, Buenos Aires, Argentina.

Artificial Organs
|April 4, 1998
PubMed
Summary

The ProCor Model 1 pneumatic left ventricular assist device (LVAD) offers a compact, durable solution for end-stage heart failure. Its design supports prolonged circulatory assistance by synchronizing with the patient's ECG.

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Area of Science:

  • Cardiovascular Engineering
  • Biomedical Devices
  • Heart Failure Therapy

Background:

  • Electromechanical left ventricular assist devices (LVADs) are prevalent, but pneumatic systems offer unique advantages.
  • End-stage chronic heart failure necessitates advanced circulatory support solutions.
  • The ProCor Model 1 represents a novel pneumatic LVAD system.

Purpose of the Study:

  • To describe the design and functionality of the ProCor Model 1 pneumatic LVAD.
  • To highlight its features for prolonged circulatory assistance in heart failure patients.
  • To present its potential role as an alternative to existing LVAD technologies.

Main Methods:

  • The ProCor Model 1 features a compact, double-pusher plate implantable pump and a small, portable power pack.

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  • The device synchronizes with the electrocardiogram (ECG) to pump during the diastolic period.
  • A multipurpose pneumatic tube integrates ECG sensing and pacing capabilities, alongside a porcine bioprosthesis.

    • Main Results:

    • The system is designed for constant driving conditions: 60 bpm rate, 25% systolic duration, 1,800 mm Hg/s dP/dt, and 250 mm Hg driving pressure.
    • This configuration achieves a basic pump output of 3.500 L/min for sustained circulatory support.
    • The integrated pneumatic tube allows for potential cardiac pacing if required.

    Conclusions:

    • The ProCor Model 1 pneumatic LVAD demonstrates potential for long-lasting, compact circulatory assistance.
    • Its design incorporates advanced features for enhanced patient management and support.
    • This pneumatic system offers a viable alternative in the treatment of end-stage chronic heart failure.