A blood pump device comprising: a centrifugal blood pump having: a pump housing defining an inlet to receive blood and direct blood onto an impeller the pump housing having a. top bezel and a central column directed into the middle of a cavity within the pump housing the impeller is adapted in use to rotate in the cavity around the central column and to be suspended on a pivot bearing mounted between the middle of the lower surface of the impeller and the middle of the upper surface of the central column the impeller is stabilised in use by the rotation of blades generating a centrifugal force acting on the blades in radial direction away from the central column.
