Abstract
This article describes the properties and performance of a rotary total artificial heart (TAH) that produces inherently pulsatile flow. The hydraulic performance of the TAH was characterized using a mock circulatory loop to simulate four physiologically relevant conditions: baseline flow, increased flow, systemic hypertension, and pulmonary hypertension. The pump has a variable shuttle rate (beats per minute), percentage dwell time, and angular velocity on either side (revolutions per minute), which allows for full control of the flow rate and pulsatility over a range of healthy and pathologic pressures and flow rates. The end-to-end length and displacement volume of the TAH are 9.8cm and 130mL, respectively, allowing it to fit in smaller chest cavities including those of smaller adults and juvenile humans.
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