Performance and biomechanical analysis of an intra-aortic cardiac assist device in different boundary conditions

AVICENA is a new cardiac assist device which helps the patients suffering from left ventricular failure. This study aims to investigate the performance of this device and its effect on the aortic valve within different patterns of inflation and deflation of the balloon. Twelve different displacement factor curves which are applied to the balloon part of AVICENA and required for the performing of balloon inflation and deflation are selected and examined in three cases named low-pressure, normal-pressure, and high-pressure subjects. The results of generated energy, aortic valve force and pressure required for the balloon’s inflation and deflation are presented within a heart cycle. The outcomes of the present study can be utilized in designing of the AVICENA with more power generation and less aortic valve force for different subjects.