Intravascular blood pumps

An intravascular blood pump, comprising:

• a pump portion comprising a collapsible fluid conduit, one or more collapsible impellers, and one or more proximal fluid conduit struts extending proximally from the fluid conduit, the one or more impellers disposed at partially within the collapsible fluid conduit when the fluid conduit is in an expanded configuration;
• and
• an expandable flow diverter comprising a flow diverting surface, the flow diverter having an expanded configuration in which at least a portion of the flow diverter is disposed proximal to the fluid conduit,
• wherein a portion of each of the one or more proximal fluid conduit struts are secured to the expandable flow diverter.

An intravascular blood pump, comprising:

• a pump portion comprising a collapsible fluid conduit and one or more collapsible impellers, the one or more impellers disposed at partially within the collapsible fluid conduit when the fluid conduit is in an expanded configuration;
• and
• an expandable flow diverter comprising a flow diverting surface, the flow diverter having an expanded configuration in which at least a portion of the flow diverter is disposed proximal to the fluid conduit,
• the expandable flow diverter having an expanded configuration in which a radially outermost dimension of the flow diverter is at least 50% of a radially outermost dimension of the one or more impellers, optionally at least 55%, optionally at least 60%, optionally at least 65%, optionally at least 70%, optionally at least 75%, optionally at least 80%, optionally at least 85%, optionally at least 90%, optionally at least 95%, optionally at least 100%, and optionally no more than 300%.