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    • 2. 发明申请
    • Centrifugal fluid pump apparatus
    • 离心流体泵设备
    • US20050008496A1
    • 2005-01-13
    • US10613068
    • 2003-07-07
    • Takeshi TsubouchiTakehisa Mori
    • Takeshi TsubouchiTakehisa Mori
    • F04D15/00A61M1/10F04D13/02F04D29/046F04D29/047F04D29/048F16C17/04F16C32/00F16C32/04F04B49/06
    • F16C32/0442A61M1/101A61M1/1012A61M1/1015A61M1/1017A61M1/1036A61M1/1086F04D15/0066F04D15/0077F04D29/047F04D29/048F05B2240/51F05B2240/53F16C2360/44
    • 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.
    • 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。
    • 5. 发明申请
    • BLOOD PUMP APPARATUS
    • 血液泵装置
    • US20100221130A1
    • 2010-09-02
    • US12781254
    • 2010-05-17
    • Mitsutoshi YaegashiTakehiko AsadaTakehisa MoriTakayoshi OzakiKenichi Suzuki
    • Mitsutoshi YaegashiTakehiko AsadaTakehisa MoriTakayoshi OzakiKenichi Suzuki
    • F04B17/00F04D17/08
    • F04D29/047A61M1/101A61M1/1012A61M1/1013A61M1/1015A61M1/1017A61M1/1031A61M1/1036A61M1/122F04D13/027F04D13/0666F04D15/0088
    • A blood pump apparatus comprises a housing, a centrifugal pump section including an impeller and rotating inside the housing to feed a fluid by a centrifugal force, an impeller rotational torque generation section for attracting thereto said impeller and rotating said impeller; and a plurality of grooves for hydrodynamic bearing provided on an inner surface of said housing at a side of said impeller rotational torque generation section, each of the grooves for hydrodynamic bearing having a first side and a second side both extending from a periphery of said portion in which a groove for hydrodynamic bearing is formed toward a central side thereof and opposed to each other, a third side connecting one end of said first side and one end of said second side to each other, and a fourth side connecting said other end of said first side and said other end of said second side to each other; said first side and said second side are formed as a circular arc respectively in such a way that centers of said circular arcs are different from each other.
    • 一种血泵装置,包括壳体,包括叶轮的离心泵部分,并且在所述壳体内旋转以通过离心力供给流体;叶轮旋转扭矩产生部,用于吸引所述叶轮并旋转所述叶轮; 以及多个用于流体动力轴承的槽,设置在所述壳体的位于所述叶轮旋转转矩产生部分侧的内表面上,每个用于流体动力轴承的槽具有第一侧和第二侧,两个槽从所述部分的周边延伸 其中用于流体动力轴承的槽形成为朝向其中心侧并且彼此相对的第三侧,第三侧将所述第一侧的一端和所述第二侧的一端彼此连接,第四侧将所述第二侧的另一端 所述第一侧和所述第二侧的另一端彼此相对; 所述第一侧和所述第二侧分别形成为圆弧,使得所述圆弧的中心彼此不同。
    • 9. 发明授权
    • Blood pump apparatus
    • 血泵装置
    • US08430652B2
    • 2013-04-30
    • US12781254
    • 2010-05-17
    • Mitsutoshi YaegashiTakehiko AsadaTakehisa MoriTakayoshi OzakiKenichi Suzuki
    • Mitsutoshi YaegashiTakehiko AsadaTakehisa MoriTakayoshi OzakiKenichi Suzuki
    • F04B17/03
    • F04D29/047A61M1/101A61M1/1012A61M1/1013A61M1/1015A61M1/1017A61M1/1031A61M1/1036A61M1/122F04D13/027F04D13/0666F04D15/0088
    • A blood pump apparatus comprises a housing, a centrifugal pump section including an impeller and rotating inside the housing to feed a fluid by a centrifugal force, an impeller rotational torque generation section for attracting thereto said impeller and rotating said impeller; and a plurality of grooves for hydrodynamic bearing provided on an inner surface of said housing at a side of said impeller rotational torque generation section, each of the grooves for hydrodynamic bearing having a first side and a second side both extending from a periphery of said portion in which a groove for hydrodynamic bearing is formed toward a central side thereof and opposed to each other, a third side connecting one end of said first side and one end of said second side to each other, and a fourth side connecting said other end of said first side and said other end of said second side to each other; said first side and said second side are formed as a circular arc respectively in such a way that centers of said circular arcs are different from each other.
    • 一种血泵装置,包括壳体,包括叶轮的离心泵部分,并且在所述壳体内旋转以通过离心力供给流体;叶轮旋转扭矩产生部,用于吸引所述叶轮并旋转所述叶轮; 以及多个用于流体动力轴承的槽,设置在所述壳体的位于所述叶轮旋转转矩产生部分侧的内表面上,每个用于流体动力轴承的槽具有第一侧和第二侧,两个槽从所述部分的周边延伸 其中用于流体动力轴承的槽形成为朝向其中心侧并且彼此相对的第三侧,第三侧将所述第一侧的一端和所述第二侧的一端彼此连接,第四侧将所述第二侧的另一端 所述第一侧和所述第二侧的另一端彼此相对; 所述第一侧和所述第二侧分别形成为圆弧,使得所述圆弧的中心彼此不同。
    • 10. 发明授权
    • Centrifugal blood pump apparatus
    • 离心血泵装置
    • US07470246B2
    • 2008-12-30
    • US10736610
    • 2003-12-17
    • Takehisa MoriMitsutoshi YaegashiTakayoshi Ozaki
    • Takehisa MoriMitsutoshi YaegashiTakayoshi Ozaki
    • A61M37/00F04B17/00A61M1/00
    • A61M1/101A61M1/1012A61M1/1015A61M1/1031A61M1/1036A61M1/1086
    • A centrifugal blood pump apparatus has a centrifugal pump section including an impeller having a first magnetic material therein and rotating inside the housing to feed a fluid by a centrifugal force generated during a rotation thereof; an impeller rotational torque generation section having a rotor having a magnet for attracting the first magnetic material of the impeller thereto, and a motor for rotating the rotor; and a dynamic pressure groove formed at a portion, of an inner surface of the housing, located at a rotor-disposed side thereof. The centrifugal blood pump apparatus further includes an electromagnet for attracting the impeller in a direction opposite to a direction in which the magnet of the rotor attracts the impeller and helping the impeller levitate.
    • 离心式血液泵装置具有离心泵部,该离心泵部具有在其内部具有第一磁性体的叶轮,并且在壳体的内部旋转,以通过其旋转期间产生的离心力来供给流体; 叶轮旋转转矩产生部分,具有用于吸引叶轮的第一磁性材料的磁体的转子和用于使转子旋转的电动机; 以及形成在所述壳体的内表面的位于其设置在转子处的侧的部分处的动压槽。 离心式血液泵装置还包括电磁铁,用于沿着与转子的磁体吸引叶轮并帮助叶轮悬浮的方向相反的方向吸引叶轮。