Catheter blood pumps that include collapsible blood conduits and one or more collapsible impellers. The catheter blood pumps include an outflow and an expandable flow diverter disposed in an outflow region. The expandable flow diverters can be completely proximal to a proximal end of the collapsible blood conduit.

Catheter blood pumps that include collapsible blood conduits and one or more collapsible impellers. The catheter blood pumps include an outflow and an expandable flow diverter disposed in an outflow region. The expandable flow diverters can be completely proximal to a proximal end of the collapsible blood conduit.

A catheter assembly for use in a percutaneous heart pump includes a cannula housing defining an interior space, an impeller disposed within the interior space defined by the cannula housing, and a flexible atraumatic tip positioned distal of the cannula housing. A guidewire is coupled to the flexible atraumatic tip and extends proximally from the flexible atraumatic tip. The guidewire extends at least partly along an exterior of the cannula housing or at least partly within the interior space defined by the cannula housing between the impeller and the cannula housing.

A catheter assembly for use in a percutaneous heart pump includes a cannula housing defining an interior space, an impeller disposed within the interior space defined by the cannula housing, and a flexible atraumatic tip positioned distal of the cannula housing. A guidewire is coupled to the flexible atraumatic tip and extends proximally from the flexible atraumatic tip. The guidewire extends at least partly along an exterior of the cannula housing or at least partly within the interior space defined by the cannula housing between the impeller and the cannula housing.

The present disclosure provides a catheter pump system including a catheter assembly having a proximal end and a distal end. The catheter assembly includes an elongate body extending between the proximal end and the distal end. The catheter body further includes a distal portion disposed at the distal end, said distal portion comprising a bent portion, said bent portion configured to enable a steering of said catheter assembly though an artery.

The present disclosure provides a catheter pump system including a catheter assembly having a proximal end and a distal end. The catheter assembly includes an elongate body extending between the proximal end and the distal end. The catheter body further includes a distal portion disposed at the distal end, said distal portion comprising a bent portion, said bent portion configured to enable a steering of said catheter assembly though an artery.

A catheter pump system is provided. The catheter pump system includes a catheter pump and a fluid system located within the catheter pump. The catheter pump has a proximal end, a distal end, and an elongate body extending therebetween, the elongate body defining at least an inner lumen at least partially sealed by a septum located at the distal end. The fluid system is configured to pressurize the catheter pump with fluid. The catheter pump further includes a moisture absorbing seal proximate the septum.

A catheter pump system is provided. The catheter pump system includes a catheter pump and a fluid system located within the catheter pump. The catheter pump has a proximal end, a distal end, and an elongate body extending therebetween, the elongate body defining at least an inner lumen at least partially sealed by a septum located at the distal end. The fluid system is configured to pressurize the catheter pump with fluid. The catheter pump further includes a moisture absorbing seal proximate the septum.

Extracorporeal circuit devices can be used for on-pump open-heart surgery to support surgical procedures such as coronary artery bypass grafting. In some cases, a centrifugal pump is used as part of an extracorporeal circuit. Centrifugal pump heads are described herein that induce flow on two sides of an impeller plate, and that can be conveniently mechanically assembled.

A flushing system for a catheter, in particular for a catheter of a catheter pump, comprising a supply line having a pump section, a discharge line having a pump section and a pump, wherein the diameter of the pump section of the discharge line is smaller than the diameter of the pump section of the supply conduit, the pump interacts with the pump section of the supply line for supplying flushing fluid to the catheter, and the pump interacts with the pump section of the discharge line for discharging flushing fluid from the catheter.