公开(公告)号：US06884210B2

公开(公告)日：2005-04-26

申请号：US10171094

申请日：2002-06-12

Applicant: Yukihiko Nose ,  Seiji Ichikawa ,  Toshiyuki Shinohara

Inventor： Yukihiko Nose ,  Seiji Ichikawa ,  Toshiyuki Shinohara

IPC: A61M1/10 ,  F04D7/02

CPC classification number: A61M1/1017 ,  A61M1/101 ,  A61M1/1013 ,  A61M1/1036 ,  A61M1/122

Abstract: It is an object of the present invention to realize a small and light blood pump that can control thrombosis and moreover, endure a prolonged use.A blood pump comprising an impeller, a casing having a suction inlet and a delivery outlet and rotatably encasing the impeller, a magnetic drive means for rotating the impeller by magnetically acting from outside of the casing on a magnet that the impeller includes, a magnetic attraction force adjustment means for adjusting the attraction force by said magnetic action, a control means for rotating speed of said magnetic drive means, and a pair of pivot bearings for supporting pivots at both ends of the impeller rotation shaft, wherein the distance between bearing faces of said both pivot bearings is set longer than the length of the rotation shaft of the impeller and the rotation speed of the impeller is controlled to a predetermined speed by said control means for rotating speed so as to levitate the impeller in the blood flow in the casing and to maintain out of contact between the pivots at both ends of the rotation shaft of the impeller and the bearing face of said both pivot bearing.

Abstract translation: 本发明的目的是实现能够控制血栓形成的小而轻的血液泵，并且延长使用寿命。 一种血泵，包括叶轮，具有吸入口和输出出口并且可旋转地包围叶轮的壳体;磁驱动装置，用于通过从壳体外部的磁力作用将叶轮旋转到叶轮包括的磁体上，磁吸引力 用于通过所述磁作用调节吸引力的力调节装置，用于使所述磁驱动装置转速的控制装置和用于在所述叶轮旋转轴的两端支撑枢轴的一对枢转轴承，其中， 所述两个枢转轴承设定得比叶轮的旋转轴的长度长，并且通过所述控制装置将叶轮的旋转速度控制到预定的速度，以使得在壳体中的血流中的叶轮悬浮 并且保持在叶轮的旋转轴的两端的枢轴与所述两个枢转轴的轴承面之间的接触 ng。

公开(公告)号：US20050084398A1

公开(公告)日：2005-04-21

申请号：US10940419

申请日：2004-09-14

Applicant: Richard Wampler ,  David Lancisi

Inventor： Richard Wampler ,  David Lancisi

IPC: F04F99/00 ,  A61M1/10 ,  F04B17/00 ,  F04B17/03 ,  F04B35/04

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。

公开(公告)号：US20050008496A1

公开(公告)日：2005-01-13

申请号：US10613068

申请日：2003-07-07

Applicant: Takeshi Tsubouchi ,  Takehisa Mori

Inventor： Takeshi Tsubouchi ,  Takehisa Mori

IPC: F04D15/00 ,  A61M1/10 ,  F04D13/02 ,  F04D29/046 ,  F04D29/047 ,  F04D29/048 ,  F16C17/04 ,  F16C32/00 ,  F16C32/04 ,  F04B49/06

CPC classification number: F16C32/0442 ,  A61M1/101 ,  A61M1/1012 ,  A61M1/1015 ,  A61M1/1017 ,  A61M1/1036 ,  A61M1/1086 ,  F04D15/0066 ,  F04D15/0077 ,  F04D29/047 ,  F04D29/048 ,  F05B2240/51 ,  F05B2240/53 ,  F16C2360/44

Abstract: A centrifugal fluid pump apparatus includes a control mechanism; and a body including a pump section having an impeller rotating inside a housing; a rotor having an impeller attraction magnet; a motor for rotating the rotor; an impeller attraction electromagnet for attracting the impeller thereto; an impeller-position detection sensor; and hydrodynamic bearing means provided on an inner surface of the housing. The control mechanism has a position sensor output monitoring function or an electromagnet current monitoring function, a motor current monitoring function; and an emergency impeller rotation function. The emergency impeller rotation function includes a rotation termination function of terminating current to the motor and the electromagnet when the failure detection function detects a failure to thereby terminate rotation of the rotor and the impeller; impeller magnetic counterforce application function to apply a current to the electromagnet sufficient to overcome the magnetic attraction force of the rotor to the impeller caused by the magnet; hydrodynamic levitation control detection function to detect rotation of the impeller and the rotor by using a motor current monitored by the motor current monitoring function; motor speed control function for increasing the motor speed and hence the impeller rotation speed up to a predetermined value after the hydrodynamic levitation control detection function detects that the hydraulic bearing coupling between the impeller and the rotor has been made; and impeller magnetic counterforce termination function to terminate current to the electromagnet once the predetermined impeller rotation speed is reached.

Abstract translation: 离心流体泵装置包括控制机构; 以及主体，其包括具有在壳体内旋转的叶轮的泵部; 具有叶轮吸引磁铁的转子; 用于旋转转子的电动机; 用于吸引叶轮的叶轮吸引电磁体; 叶轮位置检测传感器; 以及设置在壳体的内表面上的流体动力轴承装置。 控制机构具有位置传感器输出监控功能或电磁铁电流监控功能，电机电流监控功能; 和紧急叶轮旋转功能。 紧急叶轮旋转功能包括：当故障检测功能检测到故障从而终止转子和叶轮的旋转时，终止电流到电动机和电磁体的旋转终止功能; 叶轮磁力反作用力的作用是向电磁铁施加电流足以克服由磁体引起的转子对叶轮的磁吸引力; 流体动力学悬浮控制检测功能，通过使用由电机电流监测功能监测的电机电流来检测叶轮和转子的旋转; 电动机速度控制功能，用于在流体动力学悬浮控制检测功能检测到叶轮和转子之间的液压轴承联接器已经被制造之后，将电动机速度和因此的叶轮旋转速度提高到预定值; 并且一旦达到预定的叶轮转速，则叶轮磁反力终止功能终止电流到电磁体。

公开(公告)号：US06817836B2

公开(公告)日：2004-11-16

申请号：US10241825

申请日：2002-09-10

Applicant: Yukihiko Nose ,  Toshiyuki Shinohara ,  Ryo Kosaka ,  Hirohito Sumikura

Inventor： Yukihiko Nose ,  Toshiyuki Shinohara ,  Ryo Kosaka ,  Hirohito Sumikura

IPC: F04B4906

CPC classification number: F04B49/06 ,  A61M1/101 ,  A61M1/1036 ,  A61M1/1086 ,  A61M1/122 ,  A61M2205/3334 ,  F04D15/0066 ,  Y10S415/90

Abstract: A control system for a continuous flow rotary blood pump is provided. A normal operating range of the blood pump is established. The normal operating range may comprise a normal pump flow range and a normal pressure head range. A target rotational speed of the pump is set in accordance with the normal operating range. A current operating condition of the blood pump is determined. The current operating condition may comprise a current pump flow, a current pressure head, and a current rotational speed of the pump. The current operating condition is compared with the normal operating range. An appropriate control algorithm is selected from a plurality of available control algorithms based on the comparison. The target rotational speed of the pump is adjusted using the selected control algorithm to maintain or recover the normal operating range.

公开(公告)号：US20040138617A1

公开(公告)日：2004-07-15

申请号：US10341724

申请日：2003-01-14

Inventor： Michael F. Oyaski

IPC: A61M037/00

CPC classification number: A61M5/14212 ,  A61M1/1036 ,  A61M5/1407 ,  A61M5/14236

Abstract: A disposable device for transfer of at least one predetermined medium into a device for treatment and promotion of healing of damaged body tissue. The device is comprised of a housing and a first pump stage disposed within the housing for pumping a first predetermined medium. A second pump stage engageable with such housing is included for pumping a second predetermined medium. Also included is a drive mechanism for driving the first and second pump stages. A coupling device engageable with the drive mechanism for connecting the drive mechanism to a power source is further included.

Abstract translation: 用于将至少一种预定介质转移到用于治疗和促进损伤的身体组织的愈合的装置中的一次性装置。 该装置包括壳体和设置在壳体内用于泵送第一预定介质的第一泵台。 包括与这种壳体接合的第二泵级，用于泵送第二预定介质。 还包括用于驱动第一和第二泵级的驱动机构。 还包括可与驱动机构接合以将驱动机构连接到电源的耦合装置。

公开(公告)号：US20040091354A1

公开(公告)日：2004-05-13

申请号：US10294478

申请日：2002-11-13

Applicant: JMS Co., Ltd.

Inventor： Kenji Araki ,  Hirofumi Anai ,  Hiroyuki Maeda ,  Masafumi Sato

IPC: F01D001/02

CPC classification number: F04D29/242 ,  A61M1/101 ,  A61M1/1012 ,  A61M1/1013 ,  A61M1/1036 ,  F01D1/02 ,  F04D29/183

Abstract: A turbo blood pump having a small size, that is, a small amount of blood to be filled and capable of adjusting and maintaining the slight amount of flow, and a turbo blood pump in which hemolysis is not likely to occur even if it is used at a practically high rotational speed necessary to obtain a predetermined discharging ability. The turbo blood pump to be used includes a housing having an inlet port and an outlet port; and an impeller disposed rotatably in the housing; wherein the impeller includes at least a rotation shaft and an annular connection portion to which the plural vanes are attached. The vane is manufactured so that an inlet side part is in the skew position with respect to an outlet side part.

公开(公告)号：US06716157B2

公开(公告)日：2004-04-06

申请号：US10084017

申请日：2002-02-28

Applicant: Michael P. Goldowsky

Inventor： Michael P. Goldowsky

IPC: A61M112

CPC classification number: A61M1/1036 ,  A61M1/101 ,  A61M1/1013 ,  A61M1/1015 ,  A61M1/1031 ,  A61M1/1086 ,  A61M1/12 ,  A61M1/122

Abstract: An implantable magnetic suspension blood pump having a rotor magnetically suspended and having blood flow gaps at the axial ends of the rotor so that blood in the gaps is washed out by flow in a conduit along the axis of the rotor connecting the fluid gaps. The blood pump impeller includes main and secondary blades, an exit diffuser uses a plurality of low divergence blades wrapped circumferentially around the pump axis, and concentric cones are used at the pump outlet, all to eliminate flow separation. The trailing edges of all blades are limited to an included angle of fifteen degrees, also to eliminate flow separation.

Abstract translation: 一种可植入磁悬浮血液泵，其具有磁悬浮的转子，并且在转子的轴向端部处具有血流间隙，使得间隙中的血液沿着连接流体间隙的转子的轴线在管道中流动而被冲洗掉。 血泵叶轮包括主叶片和次叶片，出口扩散器使用围绕泵轴线周向缠绕的多个低发散叶片，并且在泵出口处使用同心圆锥体，以消除流动分离。 所有叶片的后缘被限制为十五度的夹角，也是为了消除流动分离。

公开(公告)号：US20040064012A1

公开(公告)日：2004-04-01

申请号：US10671543

申请日：2003-09-29

Applicant: TERUMO KABUSHIKI KAISHA

Inventor： Masamichi Yanai

IPC: A61N001/362

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。

公开(公告)号：US20030187322A1

公开(公告)日：2003-10-02

申请号：US10362009

申请日：2003-02-18

Inventor： Thorsten Siess

IPC: A61N001/362

CPC classification number: A61M1/1036 ,  A61M1/1008 ,  A61M1/101 ,  A61M1/1029 ,  A61M1/1086 ,  A61M1/122 ,  A61M1/125 ,  A61M2230/06 ,  A61M2230/30 ,  A61M2230/005

Abstract: The blood pump (10) comprises an elongate drive portion (11) and a pump portion (12) lengthening the latter. Between the two portions, flow openings (17) are positioned. According to the invention, the flow openings (17) are covered by a screen (24) preventing the blood pump from sucking fast on tissue parts or cardiac valves or from sucking in endogenous tissue and being blocked thereby.

Abstract translation: 血泵（10）包括细长的驱动部分（11）和使其延长的泵部分（12）。 在两个部分之间，定位流动开口（17）。 根据本发明，流动开口（17）被屏幕（24）覆盖，防止血泵快速吸取组织部件或心脏瓣膜，或吸入内源性组织并被阻止。

公开(公告)号：US06575717B2

公开(公告)日：2003-06-10

申请号：US09748274

申请日：2000-12-27

Applicant: Takayoshi Ozaki ,  Minoru Suzuki

Inventor： Takayoshi Ozaki ,  Minoru Suzuki

IPC: F04B1700

CPC classification number: F04D29/048 ,  A61M1/101 ,  A61M1/1012 ,  A61M1/1015 ,  A61M1/1036 ,  A61M1/1086 ,  A61M1/122 ,  F04D13/026 ,  F04D13/027 ,  F04D13/0666 ,  F16C32/044 ,  F16C2316/18 ,  F16C2360/44

Abstract: A pump portion is provided with an impeller internal to a casing. The impeller is coupled with a rotor physically out of contact therewith and it is also supported by a controlled, magnetic bearing portion physically out of contact therewith. The impeller is rotated by a motor to discharge fluid. A position sensor detects the impeller position in levitation and in response to the sensor's output the magnetic bearing portion is controlled. The magnetic bearing portion is configured of a plurality of electromagnets formed of a magnetic pole, a yoke and a coil. The electromagnet has magnetic S and N poles each with at least yoke and coil arranged circumferentially.

Abstract translation: 泵部分具有在壳体内部的叶轮。 叶轮与转子物理联接，与转子物理上不接触，并且也由物理上不与其接触的受控的磁性轴承部分支撑。 叶轮由马达旋转以排出流体。 位置传感器检测悬架中的叶轮位置，并根据传感器的输出来控制磁性轴承部分。 磁性轴承部由多个由磁极，磁轭和线圈形成的电磁体构成。 电磁体具有磁性S和N极，每个磁极至少包括磁轭和线圈，其周向布置。