BLOOD PUMP
    6.
    发明公开
    BLOOD PUMP 审中-公开

    公开(公告)号:US20240024656A1

    公开(公告)日:2024-01-25

    申请号:US18215373

    申请日:2023-06-28

    摘要: A 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 also has an outflow cannula having an upstream end portion, a downstream end portion and an intermediate portion extending between the upstream end portion and the downstream end portion. The upstream end portion of the outflow cannula is connected to the pump casing such that blood is conveyed from the blood flow outlet of the pump casing into and through the intermediate portion of the outflow cannula towards the downstream end portion of the outflow cannula, wherein the downstream end portion has a blood flow outlet through which blood can exit the outflow cannula. At least a portion of the intermediate portion of the outflow cannula has an outer diameter that is larger than an outer diameter of the pump casing.

    Intravascular blood pump rotor
    8.
    发明授权

    公开(公告)号:US11850412B2

    公开(公告)日:2023-12-26

    申请号:US17713695

    申请日:2022-04-05

    申请人: ABIOMED, Inc.

    摘要: A blood pump rotor for an intravascular blood pump includes a distal portion having a rotor hub. A distal end of the rotor hub extends beyond a most distal portion of at least one blade formed on the hub. A proximal portion comprises permanent magnets arranged to form a modified Halbach array generating a magnetic field with a first magnetic flux in a proximal direction that is greater than a second magnetic flux in the distal direction. The array is arranged so that: (a) at least one axial magnetized magnet has a most proximal point that is a different distance from said distal end as compared to a most proximal point of at least one circumferential magnetized magnet, (b) at least one axial magnetized magnet has a physical dimension that is different from a corresponding physical dimension of at least one circumferential magnetized magnet, or (c) a combination thereof.