An external coil system for a transcutaneous energy transfer system (TETS), the external coil being configured to transfer energy sufficient to power and implantable blood pump. The system includes a housing containing the external coil, the housing includes a thermal insulating base, the external coil being partially disposed within the thermal insulating base and a thermally conductive plastic, the external coil being partially disposed within the thermally conductive plastic.

An external coil system for a transcutaneous energy transfer system (TETS), the external coil being configured to transfer energy sufficient to power and implantable blood pump. The system includes a housing containing the external coil, the housing includes a thermal insulating base, the external coil being partially disposed within the thermal insulating base and a thermally conductive plastic, the external coil being partially disposed within the thermally conductive plastic.

Systems and techniques for improving cardiorenal syndrome (CRS) may be provided. The systems may include a first flow enhancer configured to increase a renal artery pressure. The systems may include a second flow enhancer or flow restrictor configured to reduce a renal vein pressure. Each flow enhancer or flow restrictor may be configured to increase a transrenal pressure gradient, improve filtering and renal perfusion.

Systems and techniques for improving cardiorenal syndrome (CRS) may be provided. The systems may include a first flow enhancer configured to increase a renal artery pressure. The systems may include a second flow enhancer or flow restrictor configured to reduce a renal vein pressure. Each flow enhancer or flow restrictor may be configured to increase a transrenal pressure gradient, improve filtering and renal perfusion.

Various aspects of the present disclosure are directed toward apparatuses, systems, and methods that may include an inflow or outflow cannula apparatus. A support structure of the cannula may include an elongate element having a rectangular cross-section, the elongate element being coupled to the exterior surface of a conduit of the cannula by a second graft component. A cannula may include a first stent element configured to facilitate folding of a first anchor portion toward an exterior surface of the conduit and adjacent a second stent element and the second stent element may be configured to facilitate folding of a second anchor portion toward the exterior surface of the conduit and adjacent the first stent element in a delivery configuration.

Various aspects of the present disclosure are directed toward apparatuses, systems, and methods that may include an inflow or outflow cannula apparatus. A support structure of the cannula may include an elongate element having a rectangular cross-section, the elongate element being coupled to the exterior surface of a conduit of the cannula by a second graft component. A cannula may include a first stent element configured to facilitate folding of a first anchor portion toward an exterior surface of the conduit and adjacent a second stent element and the second stent element may be configured to facilitate folding of a second anchor portion toward the exterior surface of the conduit and adjacent the first stent element in a delivery configuration.

Apparatus and methods are described including a blood pump that includes a pump-outlet tube shaped to define one or more blood-outlet openings and configured for insertion into a heart of a subject. An impeller is disposed within a distal portion of the pump-outlet tube and is configured to pump blood of the subject proximally through the pump-outlet tube, such that the blood exits the pump-outlet tube through the blood-outlet openings. A delivery tube extends, from outside a body of the subject, through the pump-outlet tube to the distal portion. A drive cable passes through the delivery tube and is configured to rotate the impeller. A proximal portion of the pump-outlet tube includes multiple strips adhered to the delivery tube. Other embodiments are also described.

Apparatus and methods are described including a blood pump that includes a pump-outlet tube shaped to define one or more blood-outlet openings and configured for insertion into a heart of a subject. An impeller is disposed within a distal portion of the pump-outlet tube and is configured to pump blood of the subject proximally through the pump-outlet tube, such that the blood exits the pump-outlet tube through the blood-outlet openings. A delivery tube extends, from outside a body of the subject, through the pump-outlet tube to the distal portion. A drive cable passes through the delivery tube and is configured to rotate the impeller. A proximal portion of the pump-outlet tube includes multiple strips adhered to the delivery tube. Other embodiments are also described.

Intravascular blood pumps systems and methods of use. The blood pump system includes a catheter portion having a distal blood pump with one or more distal collapsible impellers. The system can include a clean purge fluid pathway to carry clean fluid distally to the blood pump and a purge fluid return pathway to carry return fluid proximally into an external motor and out a proximal end of the motor, and optionally to a waste reservoir.

Intravascular blood pumps systems and methods of use. The blood pump system includes a catheter portion having a distal blood pump with one or more distal collapsible impellers. The system can include a clean purge fluid pathway to carry clean fluid distally to the blood pump and a purge fluid return pathway to carry return fluid proximally into an external motor and out a proximal end of the motor, and optionally to a waste reservoir.