Percutaneous circulatory support device facilitating reduced hemolysis class

    公开(公告)号:US12133976B2

    公开(公告)日:2024-11-05

    申请号:US17992149

    申请日:2022-11-22

    Abstract: A percutaneous circulatory support device includes a housing having a proximal end portion and a motor carried by the housing. A driving magnet is operatively coupled to the motor, and a driven magnet is operatively coupled to the driving magnet. The driven magnet includes a frustoconical shape. An impeller is disposed within the housing, and the impeller is operatively coupled to the driven magnet. The motor rotates the impeller, via the driving magnet and the driven magnet, relative to the impeller housing to cause blood to flow through the percutaneous circulatory support device and blood is inhibited from pooling in the proximal end portion of the impeller housing.

    FLUID PUMP
    4.
    发明公开
    FLUID PUMP 审中-公开

    公开(公告)号:US20230321427A1

    公开(公告)日:2023-10-12

    申请号:US18182585

    申请日:2023-03-13

    CPC classification number: A61M60/416 A61M60/405 A61M60/825 A61M60/82

    Abstract: A fluid pump conveys a fluid, such as blood. A fluid channel that is bounded by a channel wall and a rotor arranged in the fluid channel and that is rotatably mounted about a pivot point of the bearing with a mechanical, hydrodynamic and/or hydrostatic, axial and radial bearing. The fluid channel has a spherical section and the rotor has a rotor body and a conveying element that is arranged within the spherical section of the fluid channel and configured to generate a substantially spherical rotational area of the rotor. The spherical center of the spherical section of the fluid channel and the spherical center of the spherical rotational area substantially coincide with the pivot point so that a minimum distance between the rotor and the channel wall is maintained in the spherical section upon a tilting of the rotor.

    Adult and pediatric extracorporeal life support system with heparin treated oxygenator surface and magnetic levitation motor

    公开(公告)号:US11376413B2

    公开(公告)日:2022-07-05

    申请号:US16220566

    申请日:2018-12-14

    Abstract: A highly portable advanced adult and pediatric compact ECLS system is based around an integrated pump-oxygenator. The system includes a central a blood inlet and flow path extending along a general longitudinal axis of the system; a pump housing defining a pump inlet in fluid communication with the central blood flow path; an impeller rotationally received within the area of the pump inlet, wherein the impeller is magnetically supported and magnetically driven; an array of hollow fiber membranes configured for gas transfer within the system for oxygenation of blood flowing across the hollow fiber membranes, wherein the membranes include a covalently-bonded heparin-based bioactive surface, and wherein the blood flow path extends from the impeller to a position to flow perpendicular over the array of hollow fiber membranes; and a blood outlet configured to receive blood flowing past the array of hollow fiber membranes.

    EXTRACORPOREAL AMBULATORY ASSIST LUNG

    公开(公告)号:US20210283324A1

    公开(公告)日:2021-09-16

    申请号:US17328049

    申请日:2021-05-24

    Abstract: An extracorporeal system for lung assist includes a housing which includes a blood flow inlet in fluid connection with a pressurizing stator compartment, a fiber bundle compartment in fluid connection with the pressurizing stator compartment via a flow channel within the housing, and a blood flow outlet in fluid connection with the fiber bundle compartment. An impeller is rotatably positioned within the pressurizing compartment for pressurizing blood entering the pressurizing stator compartment from the blood flow inlet. The system further includes a fiber bundle positioned within the fiber bundle compartment. The fiber bundle includes a plurality of hollow gas permeable fibers. The plurality of hollow gas permeable fibers is adapted to permit diffusion of gas between blood and an interior of the hollow gas permeable fibers. The plurality of hollow gas permeable fibers is positioned such that blood flows around the plurality of hollow gas permeable fibers when flowing through the fiber bundle compartment. The plurality of hollow gas permeable fibers extend generally perpendicular to the direction of bulk flow of blood through the fiber bundle compartment from the flow channel to the blood flow outlet. The system further includes a gas inlet in fluid connection with the housing and in fluid connection with inlets of the plurality of hollow gas permeable fibers and a gas outlet in fluid connection with the housing and in fluid connection with outlets of the plurality of hollow gas permeable fibers.

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