The mechanical arrangement may be a ducted propeller ( axial-flow pump ), a centrifugal pump, or a mixed flow pump which is a combination of both centrifugal and axial designs.
2.
VASCOR has explored several potential heart assist methods, including devices that would push on the outside surface of a failing left ventricle, using magnetic levitation for supporting a bladed rotor in an axial or mixed flow pump and the use of a moving valve placed in series with the heart's failing left ventricle.
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