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1. 发明授权

US11850412B2 Intravascular blood pump rotor 有权
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.
发明人： Marius Grauwinkel , Jim-Po Wang , Wolfgang Kerkhoffs
IPC分类号： A61M60/221 , A61M60/148 , A61M60/824 , A61M60/82 , A61M60/422 , F04D13/02
CPC分类号： A61M60/221 , A61M60/148 , A61M60/422 , A61M60/82 , A61M60/824 , F04D13/027
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.

2. 发明公开

US20240216670A1 PORTABLE VENTRICULAR ASSIST SYSTEM WITH A MULTI-CHANNEL OPTICAL PRESSURE SENSOR 审中-公开
公开(公告)号：US20240216670A1
公开(公告)日：2024-07-04
申请号：US18398585
申请日：2023-12-28
申请人： Abiomed, Inc.
发明人： Andrew Gentile , Claude Belleville , Wolfgang Kerkhoffs
IPC分类号： A61M60/13 , A61M60/253 , A61M60/508 , A61M60/835
CPC分类号： A61M60/13 , A61M60/253 , A61M60/508 , A61M60/835 , A61M2205/103 , A61M2205/3306 , A61M2205/3327 , A61M2205/3344 , A61M2205/3569 , A61M2205/583
摘要： A portable ventricular assist system may comprise a heart pump and at least one hardware controller. The heart pump may comprise a rotor, a motor configured to drive rotation of the rotor at one or more speeds, a first optical pressure sensor configured to detect a first pressure signal, and a second optical pressure sensor configured to detect a second pressure signal. The at least one hardware controller may comprise a primary power source, a secondary power source, at least one light-emitting diode (LED) coupled to the first optical pressure sensor via at least one first optical fiber, and the second optical pressure sensor via at least one second optical fiber. The at least one hardware controller may further comprise at least one hardware processor configured to determine a differential pressure based, at least in part, the first pressure signal and the second pressure signal.

3. 发明申请

US20220323742A1 INTRAVASCULAR BLOOD PUMP ROTOR 有权
公开(公告)号：US20220323742A1
公开(公告)日：2022-10-13
申请号：US17713695
申请日：2022-04-05
申请人： ABIOMED, Inc.
发明人： Marius Grauwinkel , Jim-Po Wang , Wolfgang Kerkhoffs
IPC分类号： A61M60/221 , A61M60/148 , A61M60/422 , A61M60/82 , A61M60/824
摘要： Disclosed is a blood pump rotor, and an intravascular blood pump that utilizes the rotor. The blood pump rotor is configured to rotate around an axis of rotation, and comprises a distal portion and a proximal portion. The distal portion includes a rotor hub, which tapers in a distal direction. The rotor hub has at least one blade extending outward from the rotor hub. Further, a distal end of said rotor hub extends distally beyond a most distal portion of the at least one blade. The proximal portion, which is connected to the distal portion, has permanent magnets arranged so as to form a modified Halbach array generating a magnetic field having a magnetic flux in a proximal direction that is greater than a magnetic flux in a distal direction, said first magnetic flux being greater than said second magnetic flux. The Halbach array is modified such that either (a) at least one axial magnetized magnet has a most proximal point or portion of a surface that is a different distance from said distal end as compared to a most proximal point or portion of a surface 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.

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