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公开(公告)号：US20170157308A1
公开(公告)日：2017-06-08
申请号：US15406078
申请日：2017-01-13
Applicant: HeartWare, Inc.
Inventor： Dan TAMEZ , Neil VOSKOBOYNIKOV
CPC classification number: A61M1/1086 , A61M1/10 , A61M1/1008 , A61M1/101 , A61M1/1031 , A61M1/1036 , A61M1/122 , A61M2205/0211 , A61M2205/3334 , A61M2205/3375
Abstract: A blood pump with an integrated flow sensor is provided. The blood pump may include an implantable pump for pumping blood having a housing, a flow path extending within the housing and at least one movable element within the housing for impelling blood along the flow path and a sensor for measuring the flow rate of blood through the pump. According to one embodiment, the sensor may be mounted to the housing of the pump. In accordance with a further embodiment, the housing may have an exterior surface defining a cavity, and the sensor may be located within the cavity.
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公开(公告)号：US09662431B2
公开(公告)日：2017-05-30
申请号：US14421767
申请日：2013-08-15
Applicant: FLOW FORWARD MEDICAL, INC. , F. Nicholas Franano , Howard M. Loree, II , Geoff Tansley , Steve Woodard , Barrett Hutto
Inventor： F. Nicholas Franano , Howard M. Loree, II , Geoff Tansley , Steve Woodard , Barrett Hutto
CPC classification number: A61M1/3653 , A61M1/1008 , A61M1/101 , A61M1/1012 , A61M1/1013 , A61M1/1015 , A61M1/1017 , A61M1/1031 , A61M1/1036 , A61M1/1086 , A61M1/12 , A61M1/122 , A61M1/3655 , A61M1/3659 , A61M5/14236 , A61M2205/32 , A61M2205/3334
Abstract: The present invention relates to a rotary blood pump with a double pivot contact bearing system with an operating range between about 50 mL/min and about 1500 mL/min. The rotary blood pump is part of a blood pump system that includes blood conduit(s), a control system with optional sensors, and a power source. Embodiments of the present invention may include elements such as wear resistant bearing materials, a rotor back plate for magnetic attraction of the rotor to reduce bearing pivot bearing forces and wear, a rotor size and shape and a bearing gap that combine to create a hydrodynamic bearing effect and reduce bearing pivot bearing forces and wear, improved intravascular conduits with increased resistance to thrombosis, conduit insertion site cuffs to resist infection, and conduit side ports amenable to the easy insertion of guidewire and catheter-based medical devices.
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公开(公告)号：US20170119945A1
公开(公告)日：2017-05-04
申请号：US15317763
申请日：2015-06-10
Applicant: UNIVERSITAET DUISBURG-ESSEN
Inventor： Till NEUMANN
CPC classification number: A61M1/1031 , A61M1/1008 , A61M1/101 , A61M1/1024 , A61M1/1029 , A61M1/1032 , A61M1/1036 , A61M1/1086 , A61M1/122 , A61M1/125 , A61M1/127 , A61M2205/0266 , A61M2205/8243
Abstract: The disclosure relates to a pump for implantation into a vessel or a heart, with the pump being introduced in a first state into the vessel or heart in order then be functionally changed over to a second state in the vessel or in the heart, having a drive part and a delivery part, where the drive part is not functional in the first state and becomes functional as a result of the changeover to the second state, wherein the drive part has an electric motor, where the electric motor is embodied as a wet rotor, and where, in the first state, the rotor of the electric motor and the stator of the electric motor are arranged so as to be separate from one another, and where the rotor of the electric motor is moved into the stator of the electric motor in the second state, where the rotor can drive the delivery part in the second state.
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公开(公告)号：US20170065755A1
公开(公告)日：2017-03-09
申请号：US15286449
申请日：2016-10-05
Applicant: Thoratec Corporation
Inventor： Samuel Schimpf , Mark McChrystal , Joseph C. Stark, III , Andre Siebenhaar
CPC classification number: A61M1/1086 , A61M1/101 , A61M1/1012 , A61M1/1015 , A61M1/1017 , A61M1/1031 , A61M1/1036 , A61M1/12 , A61M1/122 , A61M2205/3317 , A61M2205/3334 , A61M2205/3365 , A61M2207/00 , F04D13/064 , F04D15/0077 , G01B7/003 , G01B7/30 , G01D5/142 , G01R33/072 , H05K1/028 , H05K1/119 , H05K1/189 , H05K3/30 , H05K3/303 , H05K3/32 , H05K3/4691 , H05K2201/052 , H05K2201/10151 , Y10T29/49009 , Y10T29/49128
Abstract: A molded interconnect device can carry a Hall sensor for transducing a position of a rotor of the implantable blood pump. The molded interconnect device includes one or more integrated electronic circuit traces configured to electrically connect the hall sensor with a printed circuit board of the implantable blood pump, and the molded interconnect device is configured to be mounted to the printed circuit board.
Abstract translation: 模制的互连装置可以携带用于转换可植入血液泵的转子位置的霍尔传感器。 模制的互连装置包括一个或多个集成电子电路迹线，其被配置为将霍尔传感器与可植入血液泵的印刷电路板电连接，并且模制的互连装置被配置为安装到印刷电路板。
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155.发明申请公开(公告)号：US20170014562A1
公开(公告)日：2017-01-19
申请号：US15281796
申请日：2016-09-30
Applicant: ECP ENTWICKLUNGSGESELLSCHAFT MBH
Inventor： Reiner Liebing
IPC: A61M1/10 , A61M1/12 , F04D29/046 , F04D29/52 , F04D29/18 , F04D29/043
CPC classification number: F04D29/242 , A61M1/101 , A61M1/1013 , A61M1/1024 , A61M1/1031 , A61M1/1032 , A61M1/1034 , A61M1/1036 , A61M1/122 , A61M1/125 , F04C2/02 , F04C14/22 , F04D29/043 , F04D29/046 , F04D29/181 , F04D29/528 , Y10S415/90
Abstract: A fluid pump device changeable in diameter is provided. The device has a pump housing which is changeable in diameter and with a rotor which is changeable in diameter. The device has at least one delivery element for fluid, as well as a drive shaft on which the rotor is rotatably mounted. A bearing arrangement is arranged on the drive shaft or its extension, at the distal end of the drive shaft behind the rotor seen from the proximal end of the drive shaft. The bearing arrangement has struts, which elastically brace between a hub of the bearing arrangement and the pump housing.
Abstract translation: 提供直径可变的流体泵装置。 该装置具有直径可变的泵壳体和直径可变的转子。 该装置具有用于流体的至少一个输送元件以及转子可旋转地安装在该驱动轴上的驱动轴。 在驱动轴或其延伸部上的驱动轴的远端处设置有从驱动轴的近端观察的转子后面的轴承装置。 轴承装置具有支撑件，其支撑在轴承装置的轮毂和泵壳体之间。
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Patent Agency Ranking
公开(公告)号：US09533083B2
公开(公告)日：2017-01-03
申请号：US14328610
申请日：2014-07-10
Applicant: Thoratec Corporation
Inventor： Richard K. Wampler , David M. Lancisi
IPC: A61M1/10 , F04D13/06 , F04D29/047 , F04D29/048 , F16C32/04 , F04D29/041
CPC classification number: A61M1/1036 , A61M1/101 , A61M1/1013 , A61M1/1015 , A61M1/1017 , A61M1/1031 , A61M1/122 , F04D1/00 , F04D13/06 , F04D13/0666 , F04D29/0413 , F04D29/043 , F04D29/047 , F04D29/0473 , F04D29/048 , F04D29/22 , F04D29/426 , F04D29/628 , F16C32/044 , F16C2316/18 , Y10S415/90
Abstract: Various “contactless” bearing mechanisms including hydrodynamic, hydrostatic, and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. These design features may be combined. In one embodiment, the pump apparatus includes a rotor having a bore, a ring-shaped upper rotor bearing magnet, and a ring-shaped lower rotor bearing magnet. The bearing magnets are concentric with the bore. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood.
Abstract translation: 提供了用于旋转泵的各种“非接触”轴承机构，包括流体动力学，静液压和磁性轴承，作为机械接触轴承的替代品。 这些设计特征可以组合。 在一个实施例中，泵装置包括具有孔的转子，环形上转子轴承磁体和环形下转子轴承磁体。 轴承磁体与孔同心。 缺少机械接触轴承可以延长泵的运行寿命，减少对血液等工作流体的损坏。
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公开(公告)号：US09512852B2
公开(公告)日：2016-12-06
申请号：US13739814
申请日：2013-01-11
Applicant: Thoratec Corporation
Inventor： Richard K. Wampler , David M. Lancisi
IPC: A61M1/10 , F04D29/047 , F04D29/041 , F04D29/048
CPC classification number: A61M1/1036 , A61M1/101 , A61M1/1012 , A61M1/1015 , A61M1/1017 , A61M1/1031 , A61M1/122 , F04D29/0413 , F04D29/0473 , F04D29/0476 , F04D29/048 , F04D29/2266 , F04D29/426
Abstract: The present invention provides a rotary blood pump with both an attractive magnetic axial bearing and a hydrodynamic bearing. In one embodiment according to the present invention, a rotary pump includes an impeller assembly supported within a pump housing assembly by a magnetic axial bearing and a hydrodynamic bearing. The magnetic axial bearing includes at least two magnets oriented to attract each other. One magnet is positioned in the spindle of the pump housing while the other is disposed within the rotor assembly, proximate to the spindle. In this respect, the two magnets create an attractive axial force that at least partially maintains the relative axial position of the rotor assembly. The hydrodynamic bearing is formed between sloping surfaces that form tight clearances below the rotor assembly.
Abstract translation: 本发明提供一种具有吸引力的磁轴向轴承和流体动力轴承的旋转血泵。 在根据本发明的一个实施例中，旋转泵包括通过磁性轴向轴承和流体动力轴承支撑在泵壳体组件内的叶轮组件。 磁性轴向轴承包括至少两个定向成吸引彼此的磁体。 一个磁体定位在泵壳体的主轴中，而另一个磁体设置在转子组件内，靠近主轴。 在这方面，两个磁体产生有吸引力的轴向力，其至少部分地保持转子组件的相对轴向位置。 流体动力轴承形成在倾斜表面之间，其在转子组件下方形成紧密的间隙。
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公开(公告)号：US20160331881A1
公开(公告)日：2016-11-17
申请号：US15219578
申请日：2016-07-26
Applicant: Thoratec Corporation
Inventor： Andre Siebenhaar , Andreas Fleischli
CPC classification number: A61M1/127 , A61M1/101 , A61M1/1015 , A61M1/1029 , A61M1/1031 , A61M1/1036 , A61M1/1086 , A61M1/122 , F04C2270/0421 , F04D1/00 , F04D7/02 , F04D13/024 , F04D15/00 , F04D29/426 , F05B2240/14 , F05B2240/30 , F05B2270/10 , F05B2270/404
Abstract: A system and a method for starting a rotor of an implantable blood pump are described. For example, a blood pump system includes a rotary motor having a stator and a rotor. The rotor has permanent magnetic poles for magnetic levitation of the rotor, and the stator has a plurality of pole pieces arranged circumferentially at intervals. The blood pump system includes a controller configured to control a start phase of the rotor, wherein the start phase is prior to the rotor being positioned in a predefined geometric volume for pumping blood and wherein the start phase includes performing a rotation of the rotor by an angle larger than an angle corresponding to a quarter of an angular distance between two neighboring magnetic poles of the rotor.
Abstract translation: 描述了用于启动可植入血液泵的转子的系统和方法。 例如，血液泵系统包括具有定子和转子的旋转马达。 转子具有用于转子磁悬浮的永久磁极，并且定子具有间隔地周向布置的多个极片。 血液泵系统包括被配置为控制转子的起始阶段的控制器，其中起动阶段在转子位于用于泵送血液的预定几何体积之前，并且其中起动阶段包括通过一个 角度大于对应于转子的两个相邻磁极之间的角距离的四分之一的角度。
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公开(公告)号：US09427510B2
公开(公告)日：2016-08-30
申请号：US14014957
申请日：2013-08-30
Applicant: Thoratec Corporation
Inventor： Andre Siebenhaar , Andreas Fleischli
CPC classification number: A61M1/127 , A61M1/101 , A61M1/1015 , A61M1/1029 , A61M1/1031 , A61M1/1036 , A61M1/1086 , A61M1/122 , F04C2270/0421 , F04D1/00 , F04D7/02 , F04D13/024 , F04D15/00 , F04D29/426 , F05B2240/14 , F05B2240/30 , F05B2270/10 , F05B2270/404
Abstract: A system and a method for starting a rotor of an implantable blood pump are described. For example, a blood pump system includes a rotary motor having a stator and a rotor. The rotor has permanent magnetic poles for magnetic levitation of the rotor, and the stator has a plurality of pole pieces arranged circumferentially at intervals. The blood pump system includes a controller configured to control a start phase of the rotor, wherein the start phase is prior to the rotor being positioned in a predefined geometric volume for pumping blood and wherein the start phase includes performing a rotation of the rotor by an angle larger than an angle corresponding to a quarter of an angular distance between two neighboring magnetic poles of the rotor.
Abstract translation: 描述了用于启动可植入血液泵的转子的系统和方法。 例如，血液泵系统包括具有定子和转子的旋转马达。 转子具有用于转子磁悬浮的永久磁极，并且定子具有间隔地周向布置的多个极片。 血液泵系统包括被配置为控制转子的起始阶段的控制器，其中起动阶段在转子位于用于泵送血液的预定几何体积之前，并且其中起动阶段包括通过一个 角度大于对应于转子的两个相邻磁极之间的角距离的四分之一的角度。
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公开(公告)号：US20160206796A1
公开(公告)日：2016-07-21
申请号：US15082308
申请日：2016-03-28
Applicant: TERUMO KABUSHIKI KAISHA
Inventor： KOKO KUMANO
CPC classification number: A61M1/1013 , A61M1/1006 , A61M1/101 , A61M1/1036 , A61M1/1698 , A61M1/267 , A61M1/3666 , F04D1/00 , F04D13/024 , F04D29/026 , F04D29/046 , F04D29/0465 , F04D29/0467 , F04D29/2216 , F04D29/426 , F05D2300/2112 , F05D2300/516
Abstract: A centrifugal pump (10) includes a housing (26), an impeller (28) that is rotatably disposed inside the housing (26), a shaft (62) that is provided at a center rotational axis of the impeller (28), and bearings (70) that pivotally support the shaft ends (66). At least one of the shaft ends (66) has surface roughness Ra equal to or less than 0.21 μm and/or surface roughness Ry equal to or less than 1.49 μm.
Abstract translation: 离心泵（10）包括壳体（26），可旋转地设置在壳体（26）内的叶轮（28），设置在叶轮（28）的中心旋转轴线处的轴（62），以及 轴承（70），其枢转地支撑轴端部（66）。 轴端（66）中的至少一个具有等于或小于0.21μm的表面粗糙度Ra和/或等于或小于1.49μm的表面粗糙度Ry。
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