This invention concerns an intravascular blood pump for percutaneous insertion into a patient's blood vessel. The blood pump comprises a pump casing having a blood flow inlet and a blood flow outlet, and an impeller arranged in said pump casing so as to be rotatable about an axis of rotation. The impeller has blades sized and shaped for conveying blood from the blood flow inlet to the blood flow outlet. The blood pump comprises a drive unit for rotating the impeller, the drive unit comprising a plurality of posts arranged about the axis of rotation. Each of the posts has a longitudinal axis and an impeller-side end pointing towards the impeller. A coil winding is disposed around each of the posts and has an impeller-side end pointing towards the impeller. The coil windings are controllable so as to create a rotating magnetic field, wherein the impeller comprises a magnetic structure arranged to interact with the rotating magnetic field so as to cause rotation of the impeller. The posts do not extend with their impeller-side ends radially over the impeller-side ends of the coil winding disposed around the respective posts, wherein the term radially relates to the longitudinal axis of the posts.

This invention concerns an intravascular blood pump for percutaneous insertion into a patient's blood vessel. The blood pump comprises a pump casing having a blood flow inlet and a blood flow outlet, and an impeller arranged in said pump casing so as to be rotatable about an axis of rotation. The impeller has blades sized and shaped for conveying blood from the blood flow inlet to the blood flow outlet. The blood pump comprises a drive unit for rotating the impeller, the drive unit comprising a plurality of posts arranged about the axis of rotation. Each of the posts has a longitudinal axis and an impeller-side end pointing towards the impeller. A coil winding is disposed around each of the posts and has an impeller-side end pointing towards the impeller. The coil windings are controllable so as to create a rotating magnetic field, wherein the impeller comprises a magnetic structure arranged to interact with the rotating magnetic field so as to cause rotation of the impeller. The posts do not extend with their impeller-side ends radially over the impeller-side ends of the coil winding disposed around the respective posts, wherein the term radially relates to the longitudinal axis of the posts.

An impeller for a pump is disclosed herein. The impeller can include a hub having a fixed end and a free end. The impeller can also have a plurality of blades supported by the hub. Each blade can have a fixed end coupled to the hub and a free end. The impeller can have a stored configuration and a deployed configuration, the blades in the deployed configuration extending away from the hub, and the blades in the stored configuration being compressed against the hub.

A magnetic levitation centrifugal pump comprises: an internally hollow body, an inlet connector and an outlet connector for blood. The hollow body comprises a lower element and an upper element which are mutually coupled to each other; a rotor element housed inside the hollow body and provided with a portion made of magnetic material, the rotor element being magnetically commanded in rotation about a relative axis, without contact, by a stator element associable with the hollow body. The upper element has a perimeter flange for coupling and a substantially dome-shaped body projecting from the perimeter flange. The outlet connector is associated with the dome-shaped body and is spaced away from the perimeter flange, between the outlet connector and the perimeter flange being defined an air space inside which mutual tightening device/component can be inserted for the tightening of the upper element with the lower element.

An impeller for a pump is disclosed herein. The impeller can include a hub having a fixed end and a free end. The impeller can also have a plurality of blades supported by the hub. Each blade can have a fixed end coupled to the hub and a free end. The impeller can have a stored configuration and a deployed configuration, the blades in the deployed configuration extending away from the hub, and the blades in the stored configuration being compressed against the hub.

An integrated flow source is a limiting factor in numerous microfluidic applications. In addition to precise gradients and controlling molecular transports, a built-in source of stable and accurate flow can enable novel shear stress modulations for long-term cell culturing studies. The Tesla turbine, when used as a pump on the microfluidic regime, produces stable and accurate fluid gradients by utilizing laminar flow between its rotating discs Utilizing a stereolithography based 3D printer, a tesla pump (Ø10 cm) and associated housing capable of driving a microfluidic gradient is provided having a printed rotor surface topology of the pump in order to enhance pumping of biological fluids like blood at elevated viscosities. The surface topology is tuned via 3D pixilation, and this modulation completely recovered the pressure loss between pumping water at 1 cP versus glycerol solution at 3 cP. As a result, increased fluid viscosities, and even Non-Newtonian viscosities, can be used.

The invention relates to a bearing device (100) for a cardiac support system. The bearing device (100) comprises a stand unit (105) and an impeller (110). The stand unit (105) is designed to support the impeller (110) such that it can rotate. The impeller (110) is designed to rotate during an operation of the cardiac support system in order to convey a pump fluid flow (115). The impeller (110) is designed to enclose at least one subsection (120) of the stand unit (105) in the assembled state of the bearing device (100), wherein an intermediate space (125) for guiding a flushing fluid flow (130) is provided between the subsection (120) and the impeller (110). At least one flushing outlet (135) is formed in the impeller (110). The flushing outlet (135) is designed to discharge the flushing fluid flow (130) from the intermediate space (125) by means of centrifugal force when the cardiac support system is in operation.

The invention relates to a bearing device (100) for a cardiac support system. The bearing device (100) comprises a stand unit (105) and an impeller (110). The stand unit (105) is designed to support the impeller (110) such that it can rotate. The impeller (110) is designed to rotate during an operation of the cardiac support system in order to convey a pump fluid flow (115). The impeller (110) is designed to enclose at least one subsection (120) of the stand unit (105) in the assembled state of the bearing device (100), wherein an intermediate space (125) for guiding a flushing fluid flow (130) is provided between the subsection (120) and the impeller (110). At least one flushing outlet (135) is formed in the impeller (110). The flushing outlet (135) is designed to discharge the flushing fluid flow (130) from the intermediate space (125) by means of centrifugal force when the cardiac support system is in operation.

A combination blood pump and oxygenator, comprising an axial flow blood pump defining axially opposed blood inlet and outlet and a central lumen. The combination also includes a gas exchanger extending along the central lumen, the gas exchanger defining a gas inlet and a gas outlet, the gas exchanger being operative for allowing gas exchanges between blood circulated between the blood inlet and the blood outlet and gas circulated in the gas exchanger between the gas inlet and the gas outlet.

A centrifugal impeller for a blood pump, and a blood pump are provided. The centrifugal impeller comprises a circular base plate, centrifugal blades, and a supporting structure. A through hole is formed in the middle of the base plate to form a secondary flow path. The centrifugal blades are arranged on the upper surface of the base plate, each centrifugal blade is a banana-shaped blade which is thick in middle and thin at both ends, and a wrap angle of each centrifugal blade is greater than or equal to 90°, and the centrifugal blades extend radially from the outer edge of the through hole to the periphery of the base plate. The supporting structure comprises a supporting shaft arranged at the center of the through hole and supporting blades, one end of each supporting blade is connected to the supporting shaft, and another end is connected to the base plate.