公开(公告)号：US20150038769A1

公开(公告)日：2015-02-05

申请号：US14327971

申请日：2014-07-10

申请人： HeartWare, Inc.

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

IPC分类号： A61M1/10 ,  A61M1/12

CPC分类号： 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

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20120263610A1

公开(公告)日：2012-10-18

申请号：US13086503

申请日：2011-04-14

申请人： Steven K. Tetzlaff ,  Chad A. Craig

发明人： Steven K. Tetzlaff ,  Chad A. Craig

IPC分类号： F04B35/04

CPC分类号： F04D29/0476 ,  F04D13/10 ,  F04D29/588

摘要： A thrust module and a seal module for use in an electric submersible pump assembly is provided. The thrust module provides increased lubrication and heat dissipation while increasing sealing redundancies within the module. The thrust module includes a thrust bearing that absorbs thrust from the primary pump. A circulation pump assembly is coupled to the thrust bearing to circulate fluid through the thrust bearing and dissipate heat generated in the thrust bearing through a plurality of fins formed on an exterior surface of the circulation pump assembly. The seal module has labyrinth discs positioned within the seal module that inhibit fluid flow through the seal module. The seal module also includes check valves that release fluid from and allow fluid into the seal module at predetermined pressures. The sealing assembly is interposed between the thrust bearing and a primary pump of the electric submersible pump.

摘要翻译： 提供了一种用于电潜泵组件中的推力模块和密封模块。 推力模块提供增加的润滑和散热，同时增加模块内的密封冗余。 推力模块包括一个推力轴承，其吸收来自主泵的推力。 循环泵组件联接到止推轴承上以使流体循环通过推力轴承，并通过形成在循环泵组件的外表面上的多个翅片散发在推力轴承中产生的热量。 密封模块具有位于密封模块内的迷宫盘，其阻止流过密封模块的流体。 密封模块还包括止回阀，其在预定压力下释放流体并使流体进入密封模块。 密封组件插入推力轴承和电动潜水泵的主泵之间。

公开(公告)号：US20120195773A1

公开(公告)日：2012-08-02

申请号：US13018691

申请日：2011-02-01

申请人： Brian DASCHNER ,  Doug Daschner

发明人： Brian DASCHNER ,  Doug Daschner

IPC分类号： F04B39/00 ,  B21D53/10 ,  F16C35/02

CPC分类号： F16C35/02 ,  F04D29/0476 ,  F04D29/061 ,  F16C17/02 ,  F16C33/1085 ,  Y10T29/49668 ,  Y10T29/4967

摘要： A sleeve bearing is provided. The sleeve bearing comprises a bearing retainer including an outer surface and an inner surface, wherein the inner surface forms a retaining bore, a bearing insert including an outside surface and an inside surface, wherein the inside surface forms a shaft bore, and wherein the bearing insert is coupled to the bearing retainer.

摘要翻译： 提供套筒轴承。 套筒轴承包括轴承保持器，其包括外表面和内表面，其中内表面形成保持孔，轴承插入件包括外表面和内表面，其中内表面形成轴孔，并且其中轴承 插入件联接到轴承保持器。

公开(公告)号：US20170043076A1

公开(公告)日：2017-02-16

申请号：US15335369

申请日：2016-10-26

申请人： Thoratec Corporation

发明人： Richard K. Wampler ,  David M. Lancisi

IPC分类号： A61M1/10 ,  F04D29/42 ,  F04D29/22 ,  F04D29/047 ,  F04D29/041

CPC分类号： 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

摘要： 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.

摘要翻译： 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：US20160271308A1

公开(公告)日：2016-09-22

申请号：US15151058

申请日：2016-05-10

申请人： HeartWare, Inc.

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

IPC分类号： A61M1/10 ,  A61M1/12

CPC分类号： 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

摘要： An axial-flow blood pump includes a housing having an inlet and an outlet opposite therefrom. An impeller located within the housing is suspended during operation by magnetic forces between magnets or magnetized regions of the impeller and a motor stator surrounding the housing, and hydrodynamic thrust forces generated by a flow of blood between the 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 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 the housing in a coaxial direction of the housing.

摘要翻译： 轴流血泵包括具有与其相对的入口和出口的壳体。 位于壳体内的叶轮在操作期间通过在叶轮的磁体或磁化区域和围绕壳体的电动机定子之间的磁力而悬挂，以及由壳体和多个流体动力推力轴承表面之间的血液流产生的流体动力推力 位于叶轮上。 蜗壳可以与壳体的出口流体密封连接，用于沿轴向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沿壳体的同轴方向进入壳体的流动改进构件。

公开(公告)号：US09339598B2

公开(公告)日：2016-05-17

申请号：US14327971

申请日：2014-07-10

申请人： HeartWare, Inc.

发明人： Jeffrey A. LaRose ,  Charles R. Shambaugh, Jr. ,  Kartikeyan Trichi ,  Richard A. Marquis ,  Daniel G. White

IPC分类号： A61M1/10 ,  A61M1/12

CPC分类号： 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

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20160053769A1

公开(公告)日：2016-02-25

申请号：US14820675

申请日：2015-08-07

申请人： Nidec Corporation

发明人： Junya MIZUKAMI ,  Hideki NISHIMURA ,  Yoshito NISHITANI ,  Michihiro ITO ,  Naohiro NAGASAWA

IPC分类号： F04D29/22 ,  F04D29/42 ,  F04D29/043 ,  F04D1/00 ,  F04D13/06

CPC分类号： F04D29/186 ,  F04D3/00 ,  F04D5/001 ,  F04D11/00 ,  F04D13/0633 ,  F04D29/0476

摘要： A pump a shaft portion arranged to extend in a vertical direction; a rotor portion arranged to surround an outer circumference of the shaft portion, and including a magnet; and a housing joined to the shaft portion, and arranged to contain the rotor portion. The housing includes a stator arranged opposite to the magnet; a rotor accommodating portion arranged to accommodate the rotor portion; and an inlet and an outlet each of which is arranged to pass through a portion of the rotor accommodating portion. A surface of at least one of the rotor portion, the shaft portion, and the rotor accommodating portion includes at least one first dynamic pressure groove arranged to support rotation of the rotor portion. A surface of at least one of the rotor portion and the rotor accommodating portion includes at least one second dynamic pressure groove arranged to transfer a fluid from the inlet to the outlet. The rotor portion includes a through hole arranged to pass therethrough in an axial direction.

摘要翻译： 泵，轴部，其布置成在垂直方向上延伸; 转子部分，其布置成围绕所述轴部分的外圆周，并且包括磁体; 以及与所述轴部接合的壳体，并且设置成容纳所述转子部。 壳体包括与磁体相对布置的定子; 转子容纳部分，其布置成容纳转子部分; 以及各自设置成通过转子容纳部的一部分的入口和出口。 转子部分，轴部分和转子容纳部分中的至少一个的表面包括布置成支撑转子部分的旋转的至少一个第一动压槽。 转子部分和转子容纳部分中的至少一个的表面包括布置成将流体从入口传送到出口的至少一个第二动压槽。 转子部分包括沿轴向穿过的通孔。

公开(公告)号：US08845308B2

公开(公告)日：2014-09-30

申请号：US13086503

申请日：2011-04-14

申请人： Steven K. Tetzlaff ,  Chad A. Craig

发明人： Steven K. Tetzlaff ,  Chad A. Craig

IPC分类号： F04D13/10 ,  F04D29/047 ,  F04D29/58

CPC分类号： F04D29/0476 ,  F04D13/10 ,  F04D29/588

摘要： A thrust module and a seal module for use in an electric submersible pump assembly is provided. The thrust module provides increased lubrication and heat dissipation while increasing sealing redundancies within the module. The thrust module includes a thrust bearing that absorbs thrust from the primary pump. A circulation pump assembly is coupled to the thrust bearing to circulate fluid through the thrust bearing and dissipate heat generated in the thrust bearing through a plurality of fins formed on an exterior surface of the circulation pump assembly. The seal module has labyrinth discs positioned within the seal module that inhibit fluid flow through the seal module. The seal module also includes check valves that release fluid from and allow fluid into the seal module at predetermined pressures. The sealing assembly is interposed between the thrust bearing and a primary pump of the electric submersible pump.

摘要翻译： 提供了一种用于电潜泵组件中的推力模块和密封模块。 推力模块提供增加的润滑和散热，同时增加模块内的密封冗余。 推力模块包括一个推力轴承，其吸收来自主泵的推力。 循环泵组件联接到止推轴承上以使流体循环通过推力轴承，并通过形成在循环泵组件的外表面上的多个翅片散发在推力轴承中产生的热量。 密封模块具有位于密封模块内的迷宫盘，其阻止流过密封模块的流体。 密封模块还包括止回阀，其在预定压力下释放流体并使流体进入密封模块。 密封组件插入推力轴承和电动潜水泵的主泵之间。

公开(公告)号：US08668473B2

公开(公告)日：2014-03-11

申请号：US13212014

申请日：2011-08-17

申请人： Jeffrey A. LaRose ,  Charles R. Shambaugh, Jr. ,  Kartikeyan Trichi ,  Richard A. Marquis ,  Daniel G. White

发明人： Jeffrey A. LaRose ,  Charles R. Shambaugh, Jr. ,  Kartikeyan Trichi ,  Richard A. Marquis ,  Daniel G. White

IPC分类号： A61M1/10 ,  A61M1/12 ,  A61N1/362

CPC分类号： 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

摘要： 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.

摘要翻译： 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。

公开(公告)号：US08419609B2

公开(公告)日：2013-04-16

申请号：US11243722

申请日：2005-10-05

申请人： Charles R. Shambaugh, Jr. ,  Kartikeyan Trichi ,  Jeffrey A. LaRose

发明人： Charles R. Shambaugh, Jr. ,  Kartikeyan Trichi ,  Jeffrey A. LaRose

IPC分类号： A61M1/12

CPC分类号： 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

摘要： An impeller for a blood pump such as a magnetically driven, rotary ventricular assist device for pumping blood of a patient, the impeller being substantially entirely made of an alloy which consists essentially of about 70-80 weight percent of platinum and 20-30 weight percent of cobalt.

摘要翻译： 一种用于血液泵的叶轮，例如用于泵送患者血液的磁驱动的旋转心室辅助装置，叶轮基本上完全由合金制成，该合金基本上由约70-80重量％的铂和20-30重量％ 的钴。