A blood pump is disclosed herein, that may include one or more struts configured to be coupled to a catheter, the strut(s) defining a housing having a blood inlet and a blood outlet, and having an inner surface and an outer surface opposite the inner surface. The blood pump may include an inner coating disposed on the inner surface at the blood inlet and extending axially towards the blood outlet, and may include an outflow tube coupled to the outer surface, the outflow tube surrounding the blood outlet and surrounding at least a first portion of the inner coating, and extending axially beyond the blood outlet. The blood pump may include an impeller disposed within the housing, the impeller including at least one blade. Preferably, the inner coating has an axial length configured to surround 20% or less of the total length of the impeller.