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    Pump for Blood Perfusion
    52.
    发明申请
    Pump for Blood Perfusion 审中-公开
    血液灌注泵

    公开(公告)号：US20090318748A1

    公开(公告)日：2009-12-24

    申请号：US12226486

    申请日：2007-03-13

    Applicant: Salvador Mercé Vives

    Inventor： Salvador Mercé Vives

    IPC: A61M1/10

    CPC classification number: F04D29/466 ,  A61M1/101 ,  A61M1/1036 ,  A61M1/1037 ,  A61M1/106 ,  A61M1/1062 ,  A61M1/107 ,  A61M1/122 ,  F04D13/0606 ,  F04D13/0666 ,  F04D15/0022 ,  F04D29/4273

    Abstract: In blood perfusion during cardiac surgery or ventricular assistance, for treating cardiac insufficiency, use is currently made of a centrifugal pump that generates a linear flow in the circulatory system, counter to the pulsating flow generated by the heart. According to the invention, a pulsating linear flow is achieved for blood perfusion by providing, in the interior wall of the chamber or casing of the pump (3), an elastic lining (8) in the form of a bell-shaped membrane that inflates and deflates, producing variations in volume and changes in pressure that give rise to a pulsating effect in the flow at the outlet (6) from the pump (3). At the inlet (5) to the pump (3) there is a non-return valve formed by an annular thickening (11).

    Abstract translation: 在心脏手术或心室辅助期间的血液灌注中，为了治疗心脏功能不全，目前使用离心泵，其在循环系统中产生线性流动，与心脏产生的脉动流相反。 根据本发明，通过在泵（3）的腔室或壳体的内壁中提供呈钟形膜形式的弹性衬里（8），使血液灌注实现脉动线性流动 并且排气，产生体积变化和压力变化，从而引起来自泵（3）的出口（6）处的流动中的脉动效应。 在泵（3）的入口（5）处有由环形增厚（11）形成的止回阀。

    Intravascular ventricular assist device
    54.
    发明申请
    Intravascular ventricular assist device 审中-公开
    血管内心室辅助装置

    公开(公告)号：US20090112312A1

    公开(公告)日：2009-04-30

    申请号：US12072471

    申请日：2008-02-26

    Applicant: Jeffrey A. LaRose ,  Charles R. Shambaugh, JR. ,  Daniel G. White ,  Richard A. Marquis ,  Steven A. White ,  Kartikeyan Trichi

    Inventor： Jeffrey A. LaRose ,  Charles R. Shambaugh, JR. ,  Daniel G. White ,  Richard A. Marquis ,  Steven A. White ,  Kartikeyan Trichi

    IPC: A61M1/12

    CPC classification number: A61M1/125 ,  A61M1/1008 ,  A61M1/101 ,  A61M1/1017 ,  A61M1/1031 ,  A61M1/1036 ,  A61M1/122 ,  A61M2205/0211 ,  A61M2205/0272 ,  A61M2205/8206 ,  A61M2210/127

    Abstract: One aspect of an intravascular ventricular assist device is an implantable blood pump where the pump includes a housing defining a bore having an axis, one or more rotors disposed within the bore, each rotor including a plurality of magnetic poles, and one or more stators surrounding the bore for providing a magnetic field within the bore to induce rotation of each of the one or more rotors. Another aspect of the invention includes methods of providing cardiac assistance to a mammalian subject as, for example, a human. Further aspects of the invention include rotor bodies having helical channels formed longitudinally along the length of the body of the rotor where each helical channel is formed between peripheral support surface areas facing radially outwardly and extending generally in circumferential directions around the rotational axis of the rotor.

    Abstract translation: 血管内心室辅助装置的一个方面是可植入血液泵，其中泵包括限定具有轴的孔的壳体，设置在孔内的一个或多个转子，每个转子包括多个磁极，以及一个或多个围绕 所述孔用于在所述孔内提供磁场以引起所述一个或多个转子中的每一个的旋转。 本发明的另一方面包括向例如人类的哺乳动物受试者提供心脏辅助的方法。 本发明的其它方面包括具有沿着转子主体的长度纵向形成的螺旋通道的转子体，其中每个螺旋通道形成在围绕转子的旋转轴线的径向向外并沿圆周方向延伸的周向支撑表面区域之间。

    Sensorless Magnetic Bearing Type Blood Pump Apparatus
    55.
    发明申请
    Sensorless Magnetic Bearing Type Blood Pump Apparatus 有权
    无传感器磁轴承型血泵设备

    公开(公告)号：US20080124231A1

    公开(公告)日：2008-05-29

    申请号：US11946588

    申请日：2007-11-28

    Applicant: Mitsutoshi Yaegashi

    Inventor： Mitsutoshi Yaegashi

    IPC: F04B35/04

    CPC classification number: F04B49/06 ,  A61M1/1005 ,  A61M1/101 ,  A61M1/1012 ,  A61M1/1015 ,  A61M1/1017 ,  A61M1/1031 ,  A61M1/1036 ,  A61M1/1086 ,  F04D13/0666 ,  F04D29/047 ,  F04D29/048 ,  F16C32/0448 ,  F16C2316/18 ,  Y10S415/90

    Abstract: A sensorless magnetic bearing type blood pump apparatus includes a blood pump and a control mechanism. The blood pump has electromagnets for rotating a rotating body in a non-contact condition, and a hydrodynamic bearing section for rotating the rotating body in a non-contact condition when operation of the electromagnets is stopped. The apparatus is devoid of any sensors for determining the position of the rotating body. The control mechanism includes a pulse width modulation type electromagnet driving unit, a carrier component measuring unit for measuring carrier components of voltage and current in the driving unit, a modulation factor calculating unit which calculates a modulation factor using the carrier wave data, and a bearing mode changing-over mechanism for effecting change-over from the magnetic bearing mode to the hydrodynamic bearing mode when the calculated modulation factor is outside a predetermined range and for returning to the magnetic bearing mode after the change-over.

    Abstract translation: 无传感器的磁轴承型血液泵装置包括血液泵和控制机构。 血泵具有用于在非接触状态下旋转旋转体的电磁体，以及用于在停止电磁铁操作时以非接触状态旋转旋转体的流体动力轴承部。 该装置没有用于确定旋转体的位置的任何传感器。 控制机构包括：脉宽调制型电磁体驱动部，用于测量驱动部的电压和电流的载体成分的载体成分测定部;调制度计算部，使用该载波数据计算调制度;以及轴承 模式切换机构，当所计算的调制系数在预定范围之外时，用于从磁轴承模式转换到流体动力轴承模式，并且在转换之后返回到磁轴承模式。

    Rotary Blood Pump
    57.
    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。

    Axial flow pump with mult-grooved rotor
    58.
    发明申请
    Axial flow pump with mult-grooved rotor 有权
    带多槽转子的轴流泵

    公开(公告)号：US20070100196A1

    公开(公告)日：2007-05-03

    申请号：US11445963

    申请日：2006-06-02

    Applicant: Jeffrey LaRose ,  Charles Shambaugh ,  Kartikeyan Trichi ,  Richard Marquis ,  Daniel White

    Inventor： Jeffrey LaRose ,  Charles Shambaugh ,  Kartikeyan Trichi ,  Richard Marquis ,  Daniel White

    IPC: A61M1/12

    CPC classification number: A61M1/1036 ,  A61M1/1008 ,  A61M1/101 ,  A61M1/1012 ,  A61M1/1015 ,  A61M1/1017 ,  A61M1/1029 ,  A61M1/1031 ,  A61M1/1086 ,  A61M1/122 ,  A61M1/125 ,  F04D3/02 ,  F04D29/0476

    Abstract: An axial-flow blood pump for pumping blood includes a substantially cylindrical outer enclosure. A tubular housing concentric with and located within the outer enclosure has at one end an inlet and at an opposite end an outlet. A motor stator is concentric with and located between the outer enclosure and the tubular housing. An impeller is concentric with and located within the tubular housing. The impeller is suspended in operation by a combination of passive magnetic forces between magnets within the impeller or magnetized regions of the impeller and the motor stator and hydrodynamic thrust forces generated as blood flows between the tubular housing and a plurality of hydrodynamic thrust bearing surfaces located on the impeller. A volute may be in fluid-tight connection with the outlet of the tubular housing for receiving blood in the axial direction and directing blood in a direction normal to the axial direction. The volute has a flow-improving member extending axially from the volute and into and coaxially with the tubular housing.

    Abstract translation: 用于泵送血液的轴流血泵包括基本上圆柱形的外壳。 与外壳同心并且位于外壳内的管状壳体在一端具有入口，在相对端具有出口。 电动机定子与外壳和管状壳体同心并位于外壳和管壳之间。 叶轮与管状壳体同心且位于管状壳体内。 叶轮悬挂在操作中，通过叶轮内的磁体或叶轮的磁化区域和电动机定子之间的无源磁力的组合以及当管状壳体和位于管状壳体之间的多个流体动力推力轴承表面时产生的流体动力推力 叶轮。 蜗壳可以与管状壳体的出口流体密封连接，用于在轴向方向上接收血液并且在垂直于轴向的方向上引导血液。 蜗壳具有从蜗壳轴向延伸并与管状壳体同轴的流动改进构件。

    Blood pump system
    60.
    发明授权
    Blood pump system 有权
    血液泵系统

    公开(公告)号：US07160242B2

    公开(公告)日：2007-01-09

    申请号：US10671543

    申请日：2003-09-29

    Applicant: Masamichi Yanai

    Inventor： Masamichi Yanai

    IPC: A61N1/362 ,  A61M1/10

    CPC classification number: F04D15/02 ,  A61M1/101 ,  A61M1/1012 ,  A61M1/1015 ,  A61M1/1036 ,  A61M1/1086 ,  A61M1/122 ,  A61M2205/3334 ,  F04D15/0209 ,  F04D15/0236

    Abstract: A blood pump system includes a housing having an inlet port and an outlet port, a rotor rotated in the housing for pumping blood, and a motor for rotating the rotor. The blood pump system includes a motor current measuring function, and a backflow detecting function for detecting a backflow of blood by use of the motor current value continuously measured by the motor current measuring function.

    Abstract translation: 血液泵系统包括具有入口和出口的壳体，在壳体中旋转的用于泵送血液的转子和用于旋转转子的电动机。 血泵系统包括电动机电流测量功能，以及用于通过使用由电动机电流测量功能连续测量的电动机电流值来检测血液回流的回流检测功能。

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