Improved centrifugal blood pump

Abstract

A blood flow pump device includes a centrifugal pump having a single ball-and-cup hybrid magnetic/blood immersed bearing-supported shrouded impeller driven by a magnetically coupled motor drive. The device further includes a housing, an impeller, and a shroud, thus forming a pump chamber. The impeller is a shrouded impeller having extended blades from a hub of the impeller and the shroud. The system and method employ a blood flow pump device having a housing with a blood inlet and a blood outlet, the housing defining a fluid pathway between the inlet and the outlet, and the housing containing an impeller comprising a base, a base lid, two blades, and a shroud, with the housing positioned on a motor. A controller communicates with the motor and controls rotational speed of the impeller in response to the blood flow through the blood outlet.

Dependencies are inferred from the claim text.