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1. 发明申请

WO2022063650A1 BLOOD PUMP 审中-公开
公开(公告)号：WO2022063650A1
公开(公告)日：2022-03-31
申请号：PCT/EP2021/075328
申请日：2021-09-15
申请人： ABIOMED EUROPE GMBH
发明人： GRAUWINKEL, Marius , KERKHOFFS, Wolfgang
IPC分类号： A61M60/126 , A61M60/216 , A61M60/422 , A61M60/82 , A61M60/824 , A61M60/825 , A61M60/13 , A61M60/139 , A61M60/221 , A61M60/242
摘要： This invention concerns an intravascular blood pump (1) for percutaneous insertion into a patient's blood vessel. The blood pump (1) comprises a pump casing (2) having a blood flow inlet (21) and a blood flow outlet (22), an impeller (3) arranged in said pump casing (2) so as to be rotatable about an axis of rotation (10). 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) comprises a drive unit (4) for rotating the impeller (3), the drive unit (4) comprising a magnetic core (400) including a plurality of posts (40) arranged about the axis of rotation (10) and a back plate (50) connecting the posts (40) and extending between the posts (40) in an intermediate area (59). A coil winding (44) is disposed around each of the posts (40). The coil windings (44) are controllable so as to create a rotating magnetic field, wherein the impeller (3) comprises a magnetic structure (32) arranged to interact with the rotating magnetic field so as to cause rotation of the impeller (3). A material of at least a portion of at least one of the posts (40) is integral with a material of the intermediate area (59) of the back plate (50). Further, the invention concerns a method of manufacturing a magnetic core (400) and a method of manufacturing an intravascular blood pump (1).

2. 发明申请

WO2021043776A1 BLOOD PUMP 审中-公开
公开(公告)号：WO2021043776A1
公开(公告)日：2021-03-11
申请号：PCT/EP2020/074371
申请日：2020-09-01
申请人： ABIOMED EUROPE GMBH
发明人： KERKHOFFS, Wolfgang , GRAUWINKEL, Marius
IPC分类号： A61M1/12 , A61M1/10
摘要： This invention concerns an intravascular blood pump for percutaneous insertion into a patient's blood vessel. The blood pump 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 (10). 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 comprises a drive unit (4) for rotating the impeller (3), the drive unit (4) comprising a plurality of posts (40) arranged about the axis of rotation (10). Each of the posts (40) has an impeller-side end (420) pointing towards the impeller (3) with a front surface (42) facing the impeller (3). A coil winding (44) is disposed around each of the posts (40) so as to create magnetic field lines (500) running through the front surface (42) of each of the posts (40) and controllable so as to create a rotating magnetic field, wherein the impeller (3) comprises a magnetic structure (32) arranged to interact with the rotating magnetic field so as to cause rotation of the impeller (3). The front surface (42) of at least one of the posts (40) comprises a concavity in which the front surface (42) is inclined downwards towards a central area of the front surface (42) so as to concentrate at least a part of the magnetic field lines (500) running through the front surface (42).

3. 发明申请

WO2020187862A1 BLOOD PUMP 审中-公开
公开(公告)号：WO2020187862A1
公开(公告)日：2020-09-24
申请号：PCT/EP2020/057160
申请日：2020-03-16
申请人： ABIOMED EUROPE GMBH
发明人： GRAUWINKEL, Marius , KERKHOFFS, Wolfgang
IPC分类号： A61M1/10 , A61M1/12
摘要： This invention concerns an intravascular blood pump (1) for percutaneous insertion into a patient's blood vessel. The blood pump comprises a pump casing (2) having a blood flow inlet (21) and a blood flow outlet (22), an impeller (3) arranged in said pump casing (2) so as to be rotatable about an axis of rotation (10). 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) comprises a drive unit (4) for rotating the impeller (3), the drive unit (4) comprising a plurality of posts (40) arranged about the axis of rotation (10) 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 (47) is disposed around each of the posts (40). The coil windings (82, 83, 86) are controllable so as to create a rotating magnetic field, wherein the impeller (3) comprises a magnetic structure (32) arranged to interact with the rotating magnetic field so as to cause rotation of the impeller (3). The magnetic core (400) 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 (82, 83, 86) is provided at a surface (811) of the discontinuous soft magnetic material. The weld (82, 83, 86) 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 (400).

4. 发明申请

WO2020187797A1 BLOOD PUMP 审中-公开
公开(公告)号：WO2020187797A1
公开(公告)日：2020-09-24
申请号：PCT/EP2020/056981
申请日：2020-03-13
申请人： ABIOMED EUROPE GMBH
发明人： GRAUWINKEL, Marius , KERKHOFFS, Wolfgang
IPC分类号： A61M1/10 , A61M1/12
摘要： This invention concerns an intravascular blood pump for percutaneous insertion into a patient's blood vessel. The blood pump 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 (10). 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 comprises a drive unit (4) for rotating the impeller (3), the drive unit (4) comprising a plurality of posts (40) arranged about the axis of rotation (10). Each of the posts (40) has a longitudinal axis (LA) and an impeller-side end (420) pointing towards the impeller (3). A coil winding (44) is disposed around each of the posts (40) and has an impeller-side end pointing towards the impeller. The coil windings (44) are controllable so as to create a rotating magnetic field, wherein the impeller (3) comprises a magnetic structure (32) arranged to interact with the rotating magnetic field so as to cause rotation of the impeller (3). The posts (40) do not extend with their impeller-side ends (420) radially over the impeller-side ends of the coil winding (44) disposed around the respective posts (40), wherein the term radially relates to the longitudinal axis (LA) of the posts (40).

5. 发明申请

WO2020187860A1 BLOOD PUMP 审中-公开
公开(公告)号：WO2020187860A1
公开(公告)日：2020-09-24
申请号：PCT/EP2020/057158
申请日：2020-03-16
申请人： ABIOMED EUROPE GMBH
发明人： GRAUWINKEL, Marius , KERKHOFFS, Wolfgang
IPC分类号： A61M1/10 , A61M1/12
摘要： This invention concerns an intravascular blood pump (1) for percutaneous insertion into a patient's blood vessel. The blood pump (1) comprises a pump casing (2) having a blood flow inlet (21) and a blood flow outlet (22), an impeller (3) arranged in said pump casing (2) so as to be rotatable about an axis of rotation (10). 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) comprises a drive unit (4) for rotating the impeller (3), the drive unit (4) comprising a magnetic core (400) including a plurality of posts (40) arranged about the axis of rotation (10) and a back plate (50) connecting the posts (40) and extending between the posts (40) in an intermediate area (59). A coil winding (44) is disposed around each of the posts (40). The coil windings (44) are controllable so as to create a rotating magnetic field, wherein the impeller (3) comprises a magnetic structure (32) arranged to interact with the rotating magnetic field so as to cause rotation of the impeller (3). A material of at least a portion of at least one of the posts (40) is integral with a material of the intermediate area (59) of the back plate (50). Further, the invention concerns a method of manufacturing a magnetic core (400) and a method of manufacturing an intravascular blood pump (1).

6. 发明申请

WO2020187800A1 BLOOD PUMP 审中-公开
公开(公告)号：WO2020187800A1
公开(公告)日：2020-09-24
申请号：PCT/EP2020/056987
申请日：2020-03-13
申请人： ABIOMED EUROPE GMBH
发明人： GRAUWINKEL, Marius , KERKHOFFS, Wolfgang
IPC分类号： A61M1/10 , A61M1/12
摘要： This invention concerns an intravascular blood pump (1) for percutaneous insertion into a patient's blood vessel. The 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 (10). 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 comprises a drive unit (4) for rotating the impeller (3), the drive unit (4) comprising a plurality of posts (40) arranged about the axis of rotation (10) and a back plate. A coil winding (44) is disposed around each of the posts (40) and has an impeller-side end (420) pointing towards the impeller (3). The coil windings (44) are controllable so as to create a rotating magnetic field, wherein the impeller (3) comprises a magnetic structure (32) arranged to interact with the rotating magnetic field so as to cause rotation of the impeller (3). The rear end surfaces (45) of the posts (40) contact the back plate (50).

7. 发明申请

WO2019057636A1 BLOOD PUMP 审中-公开
公开(公告)号：WO2019057636A1
公开(公告)日：2019-03-28
申请号：PCT/EP2018/074929
申请日：2018-09-14
申请人： ABIOMED EUROPE GMBH
发明人： SIESS, Thorsten , KERKHOFFS, Wolfgang , SKRODSKY, Peter , WANG, Jimpo , GRAUWINKEL, Marius
IPC分类号： A61M1/10 , A61M1/12
摘要： 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).

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