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公开(公告)号：WO2021191101A1
公开(公告)日：2021-09-30
申请号：PCT/EP2021/057176
申请日：2021-03-22
Applicant: ABIOMED EUROPE GMBH
Inventor： KERKHOFFS, Wolfgang , KEYSSELITZ, Ellen
IPC: A61M60/13 , A61M60/221 , A61M60/422 , A61M60/806 , A61M60/825
Abstract: This invention relates to an intravascular blood pump, comprising a pumping device (11) with a pump casing (2) having a primary blood flow inlet (211) and a primary blood flow outlet (22) which are hydraulically connected by a primary blood flow passage (30), a primary impeller (31) with an upstream end and a downstream end being configured to convey a primary blood flow (1BF) from the primary blood flow inlet (211) to the primary blood flow outlet (22) along the primary blood flow passage (30), a drive unit (4) configured to rotate the primary impeller (31) about an axis of rotation (10), an impeller bearing (37) supporting the upstream end of the primary impeller (31), a central opening (262) extending axially through the impeller bearing (37), and at least one secondary blood flow passage (321) in the primary impeller (31), the at least one secondary blood flow passage (321) having a secondary blood flow inlet (212) in axial alignment with the central opening (262) of the impeller bearing (37) and each of the at least one secondary blood flow passage (321) having a secondary blood flow outlet (213), wherein at least one secondary blood flow passage (321) is configured to convey a secondary blood flow (2BF) from the secondary blood flow inlet (212) to the secondary blood flow outlet (213), and wherein the secondary blood flow outlet (213) connects the at least one secondary blood flow passage (321) to the primary blood flow passage (30) at a location axially between the upstream and downstream ends of the primary impeller (31).
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公开(公告)号：WO2021156257A1
公开(公告)日：2021-08-12
申请号：PCT/EP2021/052436
申请日：2021-02-02
Applicant: ABIOMED EUROPE GMBH
IPC: A61M60/865 , A61M60/13 , A61M60/221 , A61M60/422 , A61M60/81 , A61M60/857 , A61M60/861 , A61M60/878 , A61M60/88
Abstract: An intravascular blood pump for percutaneous insertion into a patient's vasculature comprises a pumping device (30) and a supply catheter. The pumping device comprises a pump section with a blood flow inlet, blood flow outlet, and impeller for conveying blood from the inlet to the outlet and further comprises a drive section connected to the pump section and adapted to drive the impeller. The supply line supplies the drive section with electric energy for driving the impeller. An anchoring structure (25A) is provided at a distal end region of the intravascular blood pump. A connecting catheter (25) may be attached to the anchoring structure from distally in order to guide the intravascular blood pump through the patient's vasculature in a distal direction.
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公开(公告)号：WO2021191106A1
公开(公告)日：2021-09-30
申请号：PCT/EP2021/057186
申请日：2021-03-22
Applicant: ABIOMED EUROPE GMBH
Inventor： KERKHOFFS, Wolfgang , KEYSSELITZ, Ellen
IPC: A61M60/13 , A61M60/237 , A61M60/422 , A61M60/806 , A61M60/812 , A61M60/824 , A61M60/825 , A61M60/831
Abstract: This invention relates to an intravascular blood pump (1), comprising a pumping device (11) with a pump section (3) and a drive section (4), wherein the pump section (3) comprises a pump casing (2) having a primary blood flow inlet (211) and a primary blood flow outlet (22) hydraulically connected by a primary passage (30) and the drive section (4) comprises a stator (40) and a rotor (41) rotatable about an axis of rotation (10) and configured to rotate a primary impeller (31), the primary impeller (31 ) being configured to convey a primary blood flow from the primary blood flow inlet (211) to the primary blood flow outlet (22) along the primary passage (30), the drive section (49) further comprises an ancillary blood flow inlet (23) and an ancillary blood flow outlet (24) hydraulically connected by an ancillary passage extending through an axial gap (401) between the rotor (41) and the stator (40) and an ancillary impeller (42) arranged at a drive section end (DSE) of the rotor (41) and rotatable about the axis of rotation (10) along with the rotor, the ancillary impeller (42) comprising one or more ancillary impeller vanes (421) configured to convey an ancillary blood flow (ABF) from the ancillary blood flow inlet (23) to the ancillary blood flow outlet (24) along the ancillary passage in a direction toward a pump section end (PSE) of the pumping device (11), and the rotor (41) is mounted in a blood-purged radial sliding rotor bearing (47) with an inner rotor bearing surface (4211) and an outer rotor bearing surface (4311), and the ancillary impeller (42) forms the inner rotor bearing surface (4211) of the radial sliding rotor bearing (47).
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公开(公告)号：WO2021156255A1
公开(公告)日：2021-08-12
申请号：PCT/EP2021/052434
申请日：2021-02-02
Applicant: ABIOMED EUROPE GMBH
IPC: A61M25/01
Abstract: An intravascular blood pump for percutaneous insertion into a patient's vasculature comprises a pumping device (30) and a supply catheter (36). The pumping device comprises a pump section with a blood flow inlet, blood flow outlet, and impeller for conveying blood from the inlet to the outlet and further comprises a drive section connected to the pump section and adapted to drive the impeller. The supply line supplies the drive section with electric energy for driving the impeller. The supply catheter (36) supplies electric energy for driving the impeller. The pump section (32) is axially arranged between the drive section (31) and the supply line (36). The pump section includes a flexibly bendable cannula (35), and electric lines (44) are arranged across the cannula (35) in a manner to prevent their rupture in the event that the cannula (35) is subject to bending.
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