公开(公告)号：US20100150749A1

公开(公告)日：2010-06-17

申请号：US12336283

申请日：2008-12-16

Applicant: David Horvath

Inventor： David Horvath

IPC: F04B35/04

CPC classification number: F04D29/428 ,  A61M1/101 ,  A61M1/1012 ,  A61M1/1017 ,  A61M1/1031 ,  A61M1/1036 ,  A61M1/122 ,  A61M1/127 ,  F04D13/0673 ,  F04D29/0473 ,  F04D29/441

Abstract: A pump includes: (a) an elongated pump housing having first and second ends; (b) a primary impeller mounted in the housing for rotation about an axis, the impeller comprising a plurality of vanes whose outer tips define an impeller plane; (c) an inlet disposed in fluid communication with the primary impeller; and (d) an annular volute housing communicating with the primary impeller and with an outlet, where the volute housing is axially offset from the impeller plane.

Abstract translation: 泵包括：（a）具有第一和第二端的细长泵壳体; （b）安装在所述壳体中以绕轴线旋转的主叶轮，所述叶轮包括多个叶片，其外部尖端限定叶轮平面; （c）设置成与所述主叶轮流体连通的入口; 和（d）与主叶轮连通并具有出口的环形蜗壳壳体，其中蜗壳壳体与叶轮平面轴向偏移。

公开(公告)号：US20090326649A1

公开(公告)日：2009-12-31

申请号：US12524939

申请日：2008-01-24

Applicant: Masayoshi Omori

Inventor： Masayoshi Omori

IPC: A61M1/10 ,  F04D13/02

CPC classification number: F04D13/025 ,  A61M1/101 ,  A61M1/1013 ,  A61M1/1031 ,  A61M1/1036 ,  F04D13/026 ,  F04D13/027 ,  F04D29/046 ,  F04D29/0467

Abstract: An impeller 22 includes a rotating shaft 7 supported rotatably by an upper bearing 9 and a lower bearing 20 at upper and lower ends, a plurality of vanes 6, an arm 18 coupling an inner circumferential side of the vanes to the rotating shaft, an annular coupling portion 8 coupled to an outer circumferential side of each vane, and a driven magnet portion 12 placed in a lower portion of the annular coupling portion. A drive magnet portion 16 provided at a rotor 13 and a driven magnet portion 12 are opposed to each other with a bottom wall of the housing interposed therebetween, and rotation of the rotor is transmitted to the impeller through magnetic coupling. A blockade member 23 is placed below the vanes and blocks a space in a region spreading between the rotating shaft and the annular coupling portion while leaving an opening 14 at least around the rotating shaft. In a configuration in which the rotating shaft of the impeller is supported by the upper and lower bearings and a lower portion of each outer circumferential edge of the vanes is coupled to the annular coupling portion, the formation of a blood dot in the vicinity of the lower bearing can be suppressed.

Abstract translation: 叶轮22包括由上轴承9和下轴承20可旋转地支撑在上端和下端的旋转轴7，多个叶片6，将叶片的内周侧与旋转轴连接的臂18， 联接部分8联接到每个叶片的外周侧，以及被驱动磁体部分12，其被布置在环形联接部分的下部。 设置在转子13和从动磁体部分12上的驱动磁体部分16彼此相对，壳体的底壁插入其间，转子的旋转通过磁耦合传递到叶轮。 阻挡构件23被放置在叶片的下方并且在至少围绕旋转轴留下开口14的同时在扩展在旋转轴和环形联接部之间的区域中阻挡空间。 在叶轮的旋转轴被上轴承和下轴承支撑并且叶片的每个外周边缘的下部联接到环形联接部分的结构中，在所述叶片附近形成血点 可以抑制下轴承。

公开(公告)号：US07638915B2

公开(公告)日：2009-12-29

申请号：US11848830

申请日：2007-08-31

Applicant: Martin Sentmanat

Inventor： Martin Sentmanat

IPC: H02K21/12

CPC classification number: H02K19/02 ,  A61M1/101 ,  A61M1/1031 ,  A61M1/1036 ,  A61M1/12 ,  A61M2205/04 ,  A61M2205/82 ,  H02K7/14 ,  H02K16/04 ,  H02K21/12 ,  H02K21/14 ,  H02K99/20 ,  H02K2201/15

Abstract: An electromechanical device has a rotor, a stator, and a module that at least partially houses the rotor. During normal operation of the electromechanical device, the stator is positioned external to and separate from the module.

Abstract translation: 机电装置具有至少部分地容纳转子的转子，定子和模块。 在机电装置的正常操作期间，定子被定位在模块的外部并与模块分离。

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。

公开(公告)号：US20090317271A1

公开(公告)日：2009-12-24

申请号：US12483287

申请日：2009-06-12

Applicant: Brijesh Gill ,  Charles S. Cox, JR. ,  Kevin R. Aroom

Inventor： Brijesh Gill ,  Charles S. Cox, JR. ,  Kevin R. Aroom

IPC: F04D13/06 ,  F04D29/42 ,  F04D29/22

CPC classification number: F04D5/001 ,  A61M1/101 ,  A61M1/1015 ,  A61M1/1017 ,  A61M1/1036 ,  A61M1/122 ,  F04D29/048

Abstract: The invention is directed to a multi-disk centrifugal pump suitable for pumping fluids, including biocompatible fluids, such as blood. The design of the pump components is optimized to reduce or eliminate the probability of clotting and hemolysis when pumping blood, and to be energy efficient and resistant to physical shock for portable applications.

Abstract translation: 本发明涉及一种适用于泵送流体的多盘离心泵，包括生物相容性流体，如血液。 优化了泵组件的设计，以减少或消除泵送血液时凝血和溶血的可能性，并且对于便携式应用而言能量效率高并且抵抗物理冲击。

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。

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。

公开(公告)号：US20080089797A1

公开(公告)日：2008-04-17

申请号：US11950349

申请日：2007-12-04

Applicant: Richard Wampler ,  David Lancisi

Inventor： Richard Wampler ,  David Lancisi

IPC: F04B17/03 ,  F01D5/30

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.

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。

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。