An improved intravascular blood pump. Intravascular blood pumps using the present technology may be powered by an onboard motor unit configured to be located inside the patient's body, but which is separated from the pump unit by a flexible intermediate section housing a flexible drive shaft.

An implantable right ventricular assist device configured to be implanted within the right ventricle of a heart, including a percutaneously deliverable centrifugal pump configured to carry the blood from the right ventricle to the pulmonary artery; an exit cylinder configured to secure directly or indirectly the centrifugal pump within a portion of the pulmonary artery; and a power source. Also, a method to percutaneously and transluminally implant the right ventricular assist device within the right ventricle of a patient's heart. Further, the use of the right ventricular assist device to long-term assist of the right ventricle of a patient's heart.

An implantable right ventricular assist device configured to be implanted within the right ventricle of a heart, including a percutaneously deliverable centrifugal pump configured to carry the blood from the right ventricle to the pulmonary artery; an exit cylinder configured to secure directly or indirectly the centrifugal pump within a portion of the pulmonary artery; and a power source. Also, a method to percutaneously and transluminally implant the right ventricular assist device within the right ventricle of a patient's heart. Further, the use of the right ventricular assist device to long-term assist of the right ventricle of a patient's heart.

A minimally invasive circulatory support platform that utilizes an aortic stent pump or pumps. The platform uses a low profile catheter-based techniques and provides temporary and chronic circulatory support depending on the needs of the patient. Further described is a wirelessly powered circulatory assist pump for providing chronic circulatory support for heart failure patients. The platform and system are relatively easy to place, have higher flow rates than existing systems, and provide improvements in the patient’s renal function.

A transcatheter valve implant assembly has a ventricular assist device, a prosthetic valve, a stent frame structure, and a docking station, and is implanted at an aortic or a pulmonary valve. During implantation, the native valve leaflets of the respective valve at the implantation site are engaged with the prosthetic valve and/or the stent frame structure while the stent frame structure is connected to the docking station with the prosthetic valve adjacent to the proximal end of the stent frame structure. The ventricular assist device is inserted into the interior the stent frame structure with an inlet of ventricular assist device positioned in the respective ventricle associated with the implantation site and the outlet of the ventricular assist device positioned to discharge into the respective blood vessel associated with the implantation site. The ventricular assist device is releasably connected with the stent frame structure and the docking station.

Disclosed is a blood pump device. The blood pump device includes: a housing having an overflow passage, and an inlet and an outlet respectively connected to the overflow passage; a rotor assembly rotatably disposed in the overflow passage; a coil disposed in a side wall of the housing; a first permanent magnet portion disposed inside the rotor assembly; a second permanent magnet portion disposed in the side wall of the housing, the first permanent magnet portion and the second permanent magnet portion forming a radial permanent magnet bearing; a piece of electric motor magnetic steel disposed inside a rotor of the rotor assembly; and a magnetic protection portion disposed at a periphery of the coil, wherein the magnetic protection portion and the electric motor magnetic steel act together to provide an axial pre-tightening force for the rotor assembly.

Disclosed is a blood pump device. The blood pump device includes: a housing having an overflow passage, and an inlet and an outlet respectively connected to the overflow passage; a rotor assembly rotatably disposed in the overflow passage; a coil disposed in a side wall of the housing; a first permanent magnet portion disposed inside the rotor assembly; a second permanent magnet portion disposed in the side wall of the housing, the first permanent magnet portion and the second permanent magnet portion forming a radial permanent magnet bearing; a piece of electric motor magnetic steel disposed inside a rotor of the rotor assembly; and a magnetic protection portion disposed at a periphery of the coil, wherein the magnetic protection portion and the electric motor magnetic steel act together to provide an axial pre-tightening force for the rotor assembly.

A catheter pump is disclosed. The catheter pump can include an impeller and a catheter body having a lumen therethrough. The catheter pump can also include a drive shaft disposed inside the catheter body. A motor assembly can include a chamber. The motor assembly can include a rotor disposed in the at least a portion of the chamber, the rotor mechanically coupled with a proximal portion of the drive shaft such that rotation of the rotor causes the drive shaft to rotate. The motor assembly can also comprise a stator assembly disposed about the rotor. The motor assembly can also include a heat exchanger disposed about the stator assembly, the heat exchanger may be configured to direct heat radially outward away from the stator assembly, the rotor, and the chamber.

Various aspects of the present disclosure are directed towards apparatuses, systems, and methods that system for delivering a blood pump. The system may include a blood pump that may include one or more impellers configured to cause blood to flow through the pump. The system may also include one or more guidewires. The guidewires may include one or more proximal sections and one or more distal sections, and the distal sections may have first dimensions and the proximal sections may have second dimensions, and the first dimensions may be greater than the second dimensions. The guidewires may also be tapered, geometrically shaped, have a curved profile, a combination thereof, or other configurations.

Various aspects of the present disclosure are directed towards apparatuses, systems, and methods that system for delivering a blood pump. The system may include a blood pump that may include one or more impellers configured to cause blood to flow through the pump. The system may also include one or more guidewires. The guidewires may include one or more proximal sections and one or more distal sections, and the distal sections may have first dimensions and the proximal sections may have second dimensions, and the first dimensions may be greater than the second dimensions. The guidewires may also be tapered, geometrically shaped, have a curved profile, a combination thereof, or other configurations.