公开(公告)号：US08596999B2

公开(公告)日：2013-12-03

申请号：US13397599

申请日：2012-02-15

Applicant: Tadahiko Shinshi ,  Akira Shimokohbe ,  Junichi Asama ,  Chikara Hara ,  Wataru Hijikata ,  Setsuo Takatani ,  Hideo Hoshi

Inventor： Tadahiko Shinshi ,  Akira Shimokohbe ,  Junichi Asama ,  Chikara Hara ,  Wataru Hijikata ,  Setsuo Takatani ,  Hideo Hoshi

IPC: F04B17/00

CPC classification number: A61M1/1015 ,  A61M1/10 ,  A61M1/101 ,  A61M1/1012 ,  A61M1/1013 ,  A61M1/1036 ,  Y10S415/90

Abstract: A disposable centrifugal blood pump with magnetic coupling provides a centrifugal blood pump with magnetic coupling which is simple in structure of disposable parts with low cost. Therefore, a housing as the disposable part includes a rotor having pole faces extending on the outer-peripheral surface and projecting inward from the inner-peripheral surface and an impeller attached to the rotor, and a stator as a reusable part includes three or more electromagnets for electromagnetic coupling for forming a magnetic coupling between the stator and the rotor, a torque transmission disk formed by sandwiching a ring-shaped permanent magnet between two upper and lower ring members and having pole faces corresponding to the pole faces projecting from the inner-peripheral surface of the rotor formed to project for generating a magnetic coupling between stator and rotor, a motor for rotating the torque transmission disk, and a displacement gauge for measuring displacement of the rotor.

Abstract translation: 具有磁耦合功能的一次性离心血泵提供具有磁耦合的离心式血泵，其结构简单，成本低廉。 因此，作为一次性部件的壳体包括具有在外周面上延伸并从内周面向内突出的极面的转子和附接到转子的叶轮，作为可再利用部的定子包括三个以上的电磁体 用于形成定子和转子之间的磁耦合的电磁耦合;扭矩传递盘，其通过将环形永磁体夹在两个上下环构件之间而形成，并具有与从内周面突出的极面对应的极面 形成为用于产生定子和转子之间的磁耦合的突起的转子的表面，用于旋转扭矩传递盘的电动机和用于测量转子的位移的位移计。

公开(公告)号：US08552608B2

公开(公告)日：2013-10-08

申请号：US12439666

申请日：2007-08-31

Applicant: Martin Sentmanat

Inventor： Martin Sentmanat

IPC: H02K1/27 ,  A61M1/12

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：US08512012B2

公开(公告)日：2013-08-20

申请号：US11084452

申请日：2005-03-18

Applicant: Mustafa Akdis ,  Sylvia Ruth Reul-Freudenstein ,  Michele Lenz ,  Jan Reul ,  Julian Paul Reul

Inventor： Mustafa Akdis ,  Helmut Reul

IPC: F04B35/04

CPC classification number: F04D29/047 ,  A61M1/101 ,  A61M1/1013 ,  A61M1/1015 ,  A61M1/1017 ,  A61M1/1036 ,  A61M1/122 ,  F04D29/048

Abstract: A pump and a method for operating a pump is proposed for mounting an impeller, which is inexpensive, free from contact and wear and thus extremely permanent. For this the invention uses a combination of permanent magnetic bearings and flow-mechanical bearings. The mounting is thus based on purely passive elements without using actively controlled and/or regulated elements.

Abstract translation: 提出了一种用于操作泵的泵和方法，用于安装廉价的叶轮，其没有接触和磨损，因此是非常永久的。 为此，本发明使用永磁轴承和流动机械轴承的组合。 因此，安装基于纯无源元件，而不使用主动控制和/或调节元件。

公开(公告)号：US20130183176A1

公开(公告)日：2013-07-18

申请号：US13739814

申请日：2013-01-11

Applicant: THORATEC CORPORATION

Inventor： Richard K. Wampler ,  David M. Lancisi

IPC: F04D29/047

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：US08226373B2

公开(公告)日：2012-07-24

申请号：US11946588

申请日：2007-11-28

Applicant: Mitsutoshi Yaegashi

Inventor： Mitsutoshi Yaegashi

IPC: F04B49/06

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：US20120046514A1

公开(公告)日：2012-02-23

申请号：US13212813

申请日：2011-08-18

Applicant: Kevin Bourque

Inventor： Kevin Bourque

IPC: A61M1/12 ,  H02K15/02

CPC classification number: A61M1/1036 ,  A61M1/1008 ,  A61M1/101 ,  A61M1/1012 ,  A61M1/1015 ,  A61M1/1029 ,  A61M1/1031 ,  A61M1/1086 ,  A61M1/122 ,  A61M1/127 ,  A61M2205/3365 ,  F04D13/0606 ,  F04D13/0633 ,  F04D13/064 ,  F04D13/0646 ,  F04D29/048 ,  Y10T29/49009

Abstract: An implantable blood pump includes a housing defining an inlet opening and an outlet opening. Within the housing, a dividing wall defines a blood flow conduit extending between the inlet opening and the outlet opening of the housing. The blood pump has a rotary motor that includes a stator and a rotor. The stator is disposed within the housing circumferentially about the dividing wall such that the inner blood flow conduit extends through the stator.

Abstract translation: 可植入血液泵包括限定入口和出口的壳体。 在壳体内，分隔壁限定了在壳体的入口和出口之间延伸的血流导管。 血泵具有包括定子和转子的旋转马达。 定子围绕分隔壁周向地设置在壳体内，使得内部血流导管延伸穿过定子。

公开(公告)号：US20120003108A1

公开(公告)日：2012-01-05

申请号：US13254597

申请日：2010-02-26

Applicant: Takayoshi Ozaki ,  Hiroyuki Yamada ,  Kenichi Suzuki ,  Ken Sugiura

Inventor： Takayoshi Ozaki ,  Hiroyuki Yamada ,  Kenichi Suzuki ,  Ken Sugiura

IPC: F04B17/00

CPC classification number: F04D29/426 ,  A61M1/101 ,  A61M1/1013 ,  A61M1/1015 ,  A61M1/1017 ,  A61M1/1031 ,  A61M1/1036 ,  A61M1/122 ,  F04D13/0666 ,  F04D29/0473 ,  F04D29/048 ,  F04D29/2261 ,  F16C17/045 ,  F16C32/0692

Abstract: A centrifugal blood pump apparatus includes an impeller provided in a blood chamber, first and second permanent magnets provided in one surface and the other surface of the impeller respectively, a third permanent magnet provided in an inner wall of the blood chamber, and a magnetic element and a coil for driving the impeller to rotate with a diaphragm being interposed. First and second grooves for hydrodynamic bearing different in shape and depth from each other are formed in the inner wall of the blood chamber facing the impeller, and third and fourth grooves for hydrodynamic bearing different in shape and depth from each other are formed in the diaphragm facing the impeller. The second and fourth grooves for hydrodynamic bearing generate high hydrodynamic pressure when the impeller is activated to rotate, while the first and third grooves for hydrodynamic bearing generate high hydrodynamic pressure when the impeller steadily rotates.

Abstract translation: 离心式血液泵装置包括设置在血液室中的叶轮，分别设置在一个表面和另一个表面的第一和第二永磁体，设置在血液室的内壁中的第三永磁体，以及磁性元件 以及用于驱动叶轮旋转的线圈，其中隔膜被插入。 第一和第二沟槽在形状和深度彼此不同的流体动力轴承形成在面对叶轮的血液腔的内壁中，并且在隔膜中形成有不同形状和深度的流体动力轴承的第三和第四凹槽 面向叶轮。 用于流体动力轴承的第二和第四凹槽在叶轮启动旋转时产生高的流体动力学压力，而当叶轮稳定地旋转时，用于流体动力轴承的第一和第三凹槽产生高的流体动力学压力。

公开(公告)号：US20110318204A1

公开(公告)日：2011-12-29

申请号：US13255661

申请日：2010-03-08

Applicant: Masayoshi Omori

Inventor： Masayoshi Omori

IPC: F04B17/00

CPC classification number: A61M1/101 ,  A61M1/1006 ,  A61M1/1012 ,  A61M1/1013 ,  A61M1/1015 ,  A61M1/1031 ,  A61M1/1036 ,  F04D13/027 ,  F04D29/0467 ,  F04D29/048 ,  F04D29/24

Abstract: An impeller 31 is provided with a rotating shaft rotatably supported at the upper and lower ends thereof by an upper bearing 9 and a lower bearing 10, a plurality of vanes 32 connected to the rotating shaft on the inner circumferential edge side thereof, an annular coupling portion 8 connecting outer circumferential edges of the vanes, and driven magnet portions 12 provided in a lower portion of the annular coupling portion. The rotation of a rotor is transmitted to the impeller through magnetic coupling between the driven magnets 12 and drive magnets 16 provided to the rotor 13. The upper edge of each of the vanes has a bend point, and an angle α formed by a peripheral upper vane edge 33a and an angle β formed by a central upper vane edge relative to the downward direction of the rotating shaft are both acute angles and have a relationship of α

Abstract translation: 叶轮31设置有通过上轴承9和下轴承10可旋转地支撑在其上端和下端的旋转轴，在其内周缘侧连接到旋转轴的多个叶片32，环形联轴器 连接叶片的外周边缘的部分8和设置在环形联接部分的下部的被驱动磁体部分12。 转子的旋转通过从动磁体12和设置在转子13上的驱动磁体16之间的磁耦合传递到叶轮。每个叶片的上边缘具有弯曲点，并且由周边上部形成的角度α 叶片边缘33a和角度＆bgr; 由中心上叶片边缘相对于旋转轴的向下方向形成的锐角都是锐角，并且具有α<＆bgr的关系。 在与叶片的上边缘相对的区域中的壳体的内壁表面具有跟随叶片的上边缘的形状。 在叶轮的旋转轴由上轴承和下轴承支撑的结构中，充分地获得上轴承附近的血流的清洗效果。

公开(公告)号：US20110152999A1

公开(公告)日：2011-06-23

申请号：US12967856

申请日：2010-12-14

Applicant: Roger N. Hastings ,  Michael J. Pikus ,  Scott Raymond Smith ,  Leonard B. Richardson ,  Kevin D. Edmunds

Inventor： Roger N. Hastings ,  Michael J. Pikus ,  Scott Raymond Smith ,  Leonard B. Richardson ,  Kevin D. Edmunds

IPC: A61M1/12 ,  A61F2/82

CPC classification number: A61M1/1036 ,  A61M1/1008 ,  A61M1/101 ,  A61M1/1024 ,  A61M1/1029 ,  A61M1/1031 ,  A61M1/1086 ,  A61M1/122 ,  A61M1/125 ,  A61M1/127

Abstract: A percutaneous pumping system for providing hemodynamic support to a patient includes a pumping sleeve that defines a lumen extending along the length of the pumping sleeve. The pumping sleeve is configured and arranged for insertion into patient vasculature. At least one rotatable magnet is disposed in the pumping sleeve. The at least one first magnet is configured and arranged to be driven to rotate by a magnetic field generated external to the pumping sleeve. At least one impeller is coupled to the at least one magnet. Rotation of the at least one magnet causes a corresponding rotation of the at least one impeller. An anchoring arrangement is coupled to the pumping sleeve. The anchoring arrangement is configured and arranged to anchor the pumping sleeve at a target pumping location when the pumping sleeve is inserted into patient vasculature.

Abstract translation: 用于向患者提供血液动力学支持的经皮泵送系统包括限定沿泵送套管的长度延伸的内腔的泵送套管。 泵送套管被配置和布置成插入患者脉管系统中。 至少一个可旋转磁体设置在泵送套筒中。 所述至少一个第一磁体被构造和布置成被泵送套筒外部产生的磁场驱动以旋转。 至少一个叶轮耦合到所述至少一个磁体。 至少一个磁体的旋转引起至少一个叶轮的相应旋转。 锚定装置联接到泵送套筒。 锚定装置被构造和布置成当泵送套筒插入患者脉管系统时将泵送套管锚定在目标泵送位置处。

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。