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    Rotary Blood Pump
    13.
    发明申请
    Rotary Blood Pump 审中-公开
    旋转血泵

    公开(公告)号：US20070231135A1

    公开(公告)日：2007-10-04

    申请号：US11694761

    申请日：2007-03-30

    Applicant: Richard Wampler ,  David Lancisi

    Inventor： Richard Wampler ,  David Lancisi

    IPC: F04D29/04

    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。

    TOTAL ARTIFICIAL HEART
    15.
    发明申请
    TOTAL ARTIFICIAL HEART 有权
    全人造心脏

    公开(公告)号：US20110144744A1

    公开(公告)日：2011-06-16

    申请号：US12960129

    申请日：2010-12-03

    Applicant: Richard Wampler

    Inventor： Richard Wampler

    IPC: A61M1/12

    CPC classification number: A61M1/1036 ,  A61M1/1008 ,  A61M1/101 ,  A61M1/1015 ,  A61M1/1017 ,  A61M1/1031 ,  A61M1/1086 ,  A61M1/12 ,  A61M1/122 ,  A61M2205/3334

    Abstract: A total artificial heart having a rotor with an impeller, wherein the rotor is mounted within a pump housing on a hollow shaft. The rotor is magnetically driven to produce rotary motion of the impeller for pumping blood. The motor is disposed within the pump housing such that axial translation within the housing acts as a shuttle valve to alternate flow between pulmonary and systemic circulation.

    Abstract translation: 具有带叶轮的转子的总人造心脏，其中转子安装在泵壳体中的空心轴上。 转子被磁力驱动以产生用于泵送血液的叶轮的旋转运动。 电动机设置在泵壳体内，使得壳体内的轴向平移作为梭阀来交换肺和全身循环之间的流动。

    HEART ASSIST DEVICE
    16.
    发明申请
    HEART ASSIST DEVICE 有权
    心脏辅助装置

    公开(公告)号：US20090149950A1

    公开(公告)日：2009-06-11

    申请号：US12324430

    申请日：2008-11-26

    Applicant: Richard Wampler

    Inventor： Richard Wampler

    IPC: A61M1/12

    CPC classification number: A61M1/1017 ,  A61M1/1008 ,  A61M1/101 ,  A61M1/1012 ,  A61M1/102 ,  A61M1/1022 ,  A61M1/1031 ,  A61M1/1036 ,  A61M1/122 ,  A61M1/125

    Abstract: A heart assist device comprising a rotary pump housing having a cylindrical bore, a pumping chamber and a motor stator including an electrically conductive coil located within the housing and surrounding a portion of the cylindrical bore. A rotor has a cylindrical shaft, at least one impeller appended to one end of the shaft, and a plurality of magnets located within the shaft. The rotor shaft is positioned within the housing bore with the magnets opposite the motor stator, and the impeller is positioned within the pumping chamber. The housing bore is closely fitted to the outer surface of the shaft forming a hydrodynamic journal bearing, with the pumping chamber and journal bearing connected by a leak path of blood flow between the pumping chamber and the journal bearing. A backiron of the motor stator attracts the rotor magnets to resist longitudinal displacement of the rotor within the housing during operation. The relative orientation of positions of the inflow, outflow, and leakage flow paths may be varied within the pump, such as to accommodate different intended methods for implantation and/or use.

    Abstract translation: 一种心脏辅助装置，包括具有圆柱形孔的旋转泵壳体，泵送室和电动机定子，其包括位于壳体内且围绕圆柱形孔的一部分的导电线圈。 转子具有圆柱形轴，至少一个叶轮附加到轴的一端和位于轴内的多个磁体。 转子轴定位在壳体孔内，磁体与电动机定子相对，并且叶轮位于泵送室内。 壳体孔紧密地配合到轴的外表面，形成流体动力轴颈轴承，泵送室和轴颈轴承通过泵送室和轴颈轴承之间的血流泄漏路径连接。 电动机定子的背脊吸引转子磁体以抵抗在运行期间转子在壳体内的纵向位移。 流入，流出和泄漏流动路径的位置的相对取向可以在泵内变化，例如以适应用于植入和/或使用的不同的预期方法。

    Rotary Blood Pump
    17.
    发明申请
    Rotary Blood Pump 有权
    旋转血泵

    公开(公告)号：US20080095648A1

    公开(公告)日：2008-04-24

    申请号：US11950318

    申请日：2007-12-04

    Applicant: Richard Wampler ,  David Lancisi

    Inventor： Richard Wampler ,  David Lancisi

    IPC: F04B17/03 ,  H02K7/09

    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 and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. In one embodiment, a pump apparatus includes a pump housing defining a pumping chamber. The housing has a spindle extending into the pumping chamber. A spindle magnet assembly includes first and second magnets disposed within the spindle. The first and second magnets are arranged proximate each other with their respective magnetic vectors opposing each other. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood.

    Abstract translation: 为旋转泵提供了包括流体动力和磁性轴承的各种“非接触式”轴承机构，作为机械接触轴承的替代品。 在一个实施例中，泵装置包括限定泵送室的泵壳体。 壳体具有延伸到泵送室中的主轴。 主轴磁体组件包括设置在主轴内的第一和第二磁体。 第一和第二磁体彼此相邻布置，它们各自的磁矢量彼此相对。 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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