Abstract
For the questions that the rotating continuously artificial heart pump would damage blood cells and cause hemolysis running at high rotating speed, this paper proposes a novel ventricular assist miniscule nutation pump based on nutation principle. The novel nutation pump aims to reduce the speed of the rotating parts under the premise of necessary flow rate and without the increasing of the pump volume. The equations for the pump flow discharge are obtained based on the mathematical modeling of pump flow discharge. The three-dimensional modeling of the novel ventricular assist miniscule nutation pump is further established. And the kinematic equations of the nutation disk are deduced, which provides the basis of the simulation. The flow field model of the pump is established and the meshing grids are divided in the software. Finally, the curve of volumetric flow rate, velocity vector diagram, pressure nephogram and shear stress nephogram in the internal pump are further obtained based on the simulation in the related software.
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