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    BLOOD PUMP
    2.
    发明申请
    BLOOD PUMP 有权

    公开(公告)号：US20220161015A1

    公开(公告)日：2022-05-26

    申请号：US17437658

    申请日：2020-03-16

    Applicant: Abiomed Europe GmbH

    Inventor： Marius Grauwinkel ,  Wolfgang Kerkhoffs

    IPC: A61M60/13 ,  A61M60/237 ,  A61M60/422

    Abstract: 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, 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 and a back plate connecting rear ends of the parts, the posts and the back plate together forming a magnetic core of the drive unit. A coil winding is disposed around each of the posts. 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 magnetic core or a part of it comprises a discontinuous soft magnetic material which is discontinuous regarding electric conductivity in a cross-section, wherein at least one weld is provided at a surface of the discontinuous soft magnetic material. The weld bridges at least one discontinuity regarding electric conductivity in the discontinuous soft magnetic material. Further, the invention concerns a method of manufacturing the magnetic core.

    BLOOD PUMP
    3.
    发明申请
    BLOOD PUMP 审中-公开

    公开(公告)号：US20200330666A1

    公开(公告)日：2020-10-22

    申请号：US16648337

    申请日：2018-09-14

    Applicant: Abiomed Europe GMBH

    Inventor： Thorsten Siess ,  Wolfgang Kerkhoffs ,  Peter Skrodsky ,  Jimpo Wang ,  Marius Grauwinkel

    IPC: A61M1/10 ,  A61M1/12

    Abstract: An intravascular blood pump (1) comprises a pump casing (2) having a blood flow inlet (21) and a blood flow outlet (22), and an impeller (3) arranged in said pump casing (2) so as to be rotatable about an axis of rotation, wherein the impeller (3) has blades (31) sized and shaped for conveying blood from the blood flow inlet (21) to the blood flow outlet (22). The blood pump (1) further comprises a drive unit (104) for rotating the impeller (3), the drive unit (104) comprising a plurality of posts (140) arranged about the axis of rotation (10). Coil windings (47) around the posts are sequentially controllable so as to create a rotating magnetic field. The shaft portion (141) of each of the posts (140) comprises a soft magnetic material which is discontinuous in cross-section transverse to the longitudinal axis of the respective post (140).

    BLOOD PUMP
    4.
    发明申请
    BLOOD PUMP 有权

    公开(公告)号：US20220126083A1

    公开(公告)日：2022-04-28

    申请号：US17435256

    申请日：2020-03-13

    Applicant: Abiomed Europe GmbH

    Inventor： Marius Grauwinkel ,  Wolfgang Kerkhoffs

    IPC: A61M60/237 ,  A61M60/422 ,  A61M60/135

    Abstract: 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 and a back plate. 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 rear end surfaces of the posts contact the back plate.

    BLOOD PUMP
    5.
    发明公开
    BLOOD PUMP 审中-公开

    公开(公告)号：US20230347133A1

    公开(公告)日：2023-11-02

    申请号：US18025761

    申请日：2021-09-15

    Applicant: Abiomed Europe GmbH

    Inventor： Marius Grauwinkel ,  Wolfgang Kerkoffs

    IPC: A61M60/242 ,  A61M60/139 ,  A61M60/489 ,  H01F3/02 ,  H01F1/16 ,  A61M60/478

    CPC classification number: A61M60/242 ,  A61M60/139 ,  A61M60/489 ,  H01F3/02 ,  H01F1/16 ,  A61M60/478

    Abstract: A blood pump having a pump casing with a blood flow inlet and a blood flow outlet, 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. There is a drive unit for rotating the impeller, the drive unit having a magnetic core including a plurality of posts arranged about the axis of rotation and a back plate connecting the posts and extending between the posts in an intermediate area. A coil winding is disposed around each of the posts. The coil windings are controllable so as to create a rotating magnetic field. The impeller has a magnetic structure arranged to interact with the rotating magnetic field so as to cause rotation of the impeller.

    BLOOD PUMP
    7.
    发明申请
    BLOOD PUMP 有权

    公开(公告)号：US20220161020A1

    公开(公告)日：2022-05-26

    申请号：US17439212

    申请日：2020-03-16

    Applicant: Abiomed Europe GmbH

    Inventor： Marius Grauwinkel ,  Wolfgang Kerkhoffs

    IPC: A61M60/422 ,  A61M60/13 ,  A61M60/237 ,  A61M60/221 ,  A61M60/818 ,  A61M60/82 ,  B23H1/00

    Abstract: 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, 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 magnetic core including a plurality of posts arranged about the axis of rotation and a back plate connecting the posts and extending between the posts in an intermediate area. A coil winding is disposed around each of the posts. 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. A material of at least a portion of at least one of the posts is integral with a material of the intermediate area of the back plate. Further, the invention concerns a method of manufacturing a magnetic core and a method of manufacturing an intravascular blood pump.

    BLOOD PUMP
    8.
    发明申请
    BLOOD PUMP 有权

    公开(公告)号：US20220143386A1

    公开(公告)日：2022-05-12

    申请号：US17434167

    申请日：2020-03-13

    Applicant: Abiomed Europe GmbH

    Inventor： Marius Grauwinkel ,  Wolfgang Kerkhoffs

    IPC: A61M60/806 ,  A61M60/135 ,  A61M60/216 ,  A61M60/422 ,  A61M60/81 ,  A61M60/865 ,  A61M60/825

    Abstract: 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.

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