Abstract: Catheter blood pumps that include an expandable pump portion. The pump portions include a collapsible blood conduit that defines a blood lumen. The collapsible blood conduits include a collapsible scaffold adapted to provide radial support to the blood conduit. The pump portion also includes one or more impellers. The collapsible scaffold may include portions of differing radial stiffness based on location of the one or more impellers therein.

Abstract: Catheter blood pumps that include an expandable pump portion. The pump portions include an collapsible blood conduit that defines a blood lumen. The collapsible blood conduits include a collapsible scaffold adapted to provide radial support to the blood conduit. The pump portion also includes one or more impellers.

Abstract: Intravascular blood pumps and methods of use. The blood pump include a pump portion that includes a collapsible blood conduit defining a blood flow lumen between an inflow and an outflow. The pump portion includes a distal collapsible impeller axially spaced from a proximal collapsible impeller, at least a portion of each of the distal and proximal collapsible impellers disposed between the inflow and the outflow.

Abstract: Catheter blood pump that include an expandable pump portion extending distally from an elongate shaft. The pump portions include an expandable impeller housing including an expandable blood conduit that defines a blood lumen between an inflow and an outflow. The pump portions include one or more expandable impellers disposed at least partially within the blood lumen.

Abstract: Methods and devices for supporting circulation. The methods may include positioning a blood pump in the arterial vasculature or the venous vasculature. The methods may include positioning a pump portion of the blood pump in a descending aorta, an inferior vena cava, a renal artery, and/or a renal vein. The methods include delivering a pump portion of a blood pump to a target location and rotating one or more impellers to move blood through the pump portion.

Abstract: Catheter blood pumps that include an expandable pump portion. The pump portions include an collapsible blood conduit that defines a blood lumen. The collapsible blood conduits include a collapsible scaffold adapted to provide radial support to the blood conduit. The pump portion also includes one or more impellers.

Abstract: Catheter blood pump that include an expandable pump portion extending distally from an elongate shaft. The pump portions include an expandable impeller housing including an expandable blood conduit that defines a blood lumen between an inflow and an outflow. The pump portions include one or more expandable impellers disposed at least partially within the blood lumen.

Abstract: Methods and devices for supporting circulation. The methods may include positioning a blood pump in the arterial vasculature or the venous vasculature. The methods may include positioning a pump portion of the blood pump in a descending aorta, an inferior vena cava, a renal artery, and/or a renal vein. The methods include delivering a pump portion of a blood pump to a target location and rotating one or more impellers to move blood through the pump portion.

Abstract: Catheter blood pumps that include an expandable pump portion. The pump portions include a collapsible blood conduit that defines a blood lumen. The collapsible blood conduits include a collapsible scaffold adapted to provide radial support to the blood conduit. The pump portion also includes one or more impellers.

Abstract: Intravascular blood pumps systems and methods of use are provided. The blood pump system includes a catheter portion having a distal blood pump with a cantilevered collapsible impeller. The blood pump includes sections of increased stiffness and sections of increased flexibility. The blood pump is designed and configured to bend at a distal tip, a central section, and in a proximal catheter shaft, while maintaining stiffness in the inlet and outlet. Collectively the pump is designed and configured to maintain tip gap between the impeller and the blood conduit without requiring any structures in the blood conduit distal to the impeller assembly.

Abstract: Catheter blood pumps that include an expandable conduit coupled to at least one hub shaped to promote smooth blood flow. In some examples, the at least one hub includes a body with radially extending arms that are coupled to struts of the conduit. The hub may include channels having curved surfaces for promoting non-turbulent fluid flow around a distal opening and/or a proximal opening of the conduit. The arms may have ridge regions that extend axially along the body of the hub to define at least a portion of the channels.

Abstract: Catheter blood pump that include an expandable pump portion extending distally from an elongate shaft. The pump portions include an expandable impeller housing including an expandable blood conduit that defines a blood lumen between an inflow and an outflow. The pump portions include one or more expandable impellers disposed at least partially within the blood lumen.

Abstract: Intravascular blood pumps and methods of use. The blood pump include a pump portion that includes a collapsible blood conduit defining a blood flow lumen between an inflow and an outflow. The pump portion includes a distal collapsible impeller axially spaced from a proximal collapsible impeller, at least a portion of each of the distal and proximal collapsible impellers disposed between the inflow and the outflow.

Abstract: Catheter blood pumps that include an expandable pump portion. The pump portions include a collapsible blood conduit that defines a blood lumen. The collapsible blood conduits include a collapsible scaffold adapted to provide radial support to the blood conduit. The pump portion also includes one or more impellers.

Abstract: Catheter blood pumps that include an expandable pump portion. The pump portions include a collapsible blood conduit that defines a blood lumen. The collapsible blood conduits include a collapsible scaffold adapted to provide radial support to the blood conduit. The pump portion also includes one or more impellers.

Abstract: Catheter blood pumps that include an expandable pump portion. The pump portions include an collapsible blood conduit that defines a blood lumen. The collapsible blood conduits include a collapsible scaffold adapted to provide radial support to the blood conduit. The pump portion also includes one or more impellers.

Abstract: Catheter blood pumps that include an expandable pump portion. The pump portions include a collapsible blood conduit that defines a blood lumen. The collapsible blood conduits include a collapsible scaffold adapted to provide radial support to the blood conduit. The pump portion also includes one or more impellers. The collapsible scaffold and/or an elongate member extending proximally from the pump portion may include portions of differing radial stiffness or flexibility.

Abstract: Catheter blood pumps that include an expandable pump portion. The pump portions include a collapsible blood conduit that defines a blood lumen. The collapsible blood conduits include a collapsible scaffold adapted to provide radial support to the blood conduit. The pump portion also includes one or more impellers. The collapsible scaffold may include portions of differing radial stiffness based on location of the one or more impellers therein.

Abstract: Catheter blood pump that include an expandable pump portion extending distally from an elongate shaft. The pump portions include an expandable impeller housing including an expandable blood conduit that defines a blood lumen between an inflow and an outflow. The pump portions include one or more expandable impellers disposed at least partially within the blood lumen.

Abstract: Catheter blood pumps that include a sensor system. The pumps may include a collapsible blood conduit that defines a blood lumen. The collapsible blood conduits include a collapsible scaffold adapted to provide radial support to the blood conduit. The pumps may also include one or more impellers. One or more sensors may be arranged with respect to inflow and outflow regions of the blood lumen, the scaffold and/or the impellers.