A new test circulatory system for research in cardiovascular engineering.

Area of Science:

• Cardiovascular Engineering
• Biomedical Engineering
• Physiology

Background:

• Artificial heart (AH) development requires sophisticated testing platforms.
• Existing methods may not fully capture the complex interactions within the circulatory system.

Purpose of the Study:

• To introduce a new test circulatory system (TCS) for in vitro evaluation of artificial hearts (AH).
• To facilitate research in cardiovascular engineering by mimicking natural heart functions.

Main Methods:

• Development of a TCS controlled by five variables, allowing fixed slopes of venous return curves and mean circulatory pressure.
• Mathematical analysis of the TCS under steady-state conditions.
• Integration and testing with an artificial heart (AH) prototype.

Main Results:

• The TCS allows observation of mutual influences between TCS and AH characteristics, including blood volume, pressure, and flow rates.
• Numerical results for the human circulatory system under various physiological conditions were obtained.
• Experimental results from a functional prototype align with the mathematical analysis.

Conclusions:

• The developed TCS is a viable tool for in vitro artificial heart testing and cardiovascular engineering research.
• The system accurately models physiological conditions and validates mathematical predictions.
• The TCS provides valuable insights into the performance and integration of artificial hearts.