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    Implantable centrifugal blood pump with hybrid magnetic bearings
    1.
    发明授权
    Implantable centrifugal blood pump with hybrid magnetic bearings 有权
    具有混合磁轴承的植入式离心血泵

    公开(公告)号：US07462019B1

    公开(公告)日：2008-12-09

    申请号：US09673922

    申请日：1999-04-22

    申请人： Paul E. Allarie ,  Gill B. Bearnson ,  Ron Flack ,  Pratap S. Khanwilkar ,  B. Ajit Kumar ,  James W. Long, Jr. ,  Don B. Olsen ,  Jeffrey Decker ,  Michael Baloh

    发明人： Paul E. Allarie ,  Gill B. Bearnson ,  Ron Flack ,  Pratap S. Khanwilkar ,  B. Ajit Kumar ,  James W. Long, Jr. ,  Don B. Olsen ,  Jeffrey Decker ,  Michael Baloh

    IPC分类号： F04B17/03 ,  A61M1/10

    CPC分类号： A61M1/101 ,  A61M1/1012 ,  A61M1/1015 ,  A61M1/1031 ,  A61M1/12 ,  A61M1/122 ,  F04D13/0666 ,  F04D29/048 ,  F05B2200/23 ,  F16C32/0448 ,  F16C2316/18 ,  F16C2360/44

    摘要： A pump for pumping sensitive fluids, such as blood, having no mechanical contact between the impeller and any other structure. The pump comprises a pump housing, an impeller disposed within the pump housing, a magnetic bearing system for supporting and stabilizing the impeller in five degrees of freedom, and a conformally shaped magnetically linked motor for rotating the impeller. The magnetic bearing system and motor advantageously comprise electromagnets and permanent magnets for stability and control of the impeller, and to reduce size, weight, and pump power consumption. Permanent and electromagnets are disposed on the pump housing and permanent magnets are disposed on the impeller such that by controlling electric current through the electromagnets on the housing, the magnetically suspended impeller functions as the rotor, and the housing as the stator of a D.C. motor. The system advantageously allows for sensing of relative impeller position and dynamic properties without the need for additional sensors. The fluid inlet, pump impeller, housing, and other components are configured such that flow patterns are as smooth and laminar as possible to reduce damage to the fluid, and such that eddies, flow separation, and re-circulation are reduced. In various embodiments, the pump is suitable for short or long-term implantation as a ventricular assist device or as a complete replacement heart in a human patient.

    摘要翻译： 用于泵送诸如血液的敏感流体的泵，其在叶轮和任何其它结构之间没有机械接触。 泵包括泵壳体，设置在泵壳体内的叶轮，用于以五个自由度支撑和稳定叶轮的磁轴承系统，以及用于旋转叶轮的共形形状的磁连接马达。 磁轴承系统和电动机有利地包括用于叶轮的稳定和控制的电磁体和永磁体，并且减小尺寸，重量和泵的功率消耗。 永久和电磁铁设置在泵壳体上，并且永久磁铁设置在叶轮上，使得通过控制通过壳体上的电磁体的电流，磁悬浮叶轮用作转子，并且壳体用作直流电动机的定子。 该系统有利地允许感测相对叶轮位置和动态特性，而不需要额外的传感器。 流体入口，泵叶轮，壳体和其它部件被构造成使得流动模式尽可能平滑和层流以减少对流体的损害，并且减小涡流，流动分离和再循环。 在各种实施例中，泵适合于作为心室辅助装置的短期或长期植入或者作为人类患者中的完全置换心脏。

    Ventricle assist device with volume displacement chamber
    2.
    发明授权
    Ventricle assist device with volume displacement chamber 失效
    具有体积位移室的心室辅助装置

    公开(公告)号：US5282849A

    公开(公告)日：1994-02-01

    申请号：US811455

    申请日：1991-12-19

    申请人： Willem J. Kolff ,  Yvo M. Smulders ,  Paul D. Diegel ,  James W. Long, Jr. ,  Donald B. Olsen ,  John W. Holfert

    发明人： Willem J. Kolff ,  Yvo M. Smulders ,  Paul D. Diegel ,  James W. Long, Jr. ,  Donald B. Olsen ,  John W. Holfert

    IPC分类号： A61M1/10 ,  F04B43/06 ,  A61M1/362 ,  F04B17/00

    CPC分类号： A61M1/106 ,  A61M1/1044 ,  A61M1/1063 ,  F04B43/06

    摘要： A ventricle assist device for placement within a living body and including a self contained drive motor for generating pumping action with respect to a hydraulic pumping fluid. The ventricle assist device includes a ventricle having a blood chamber and a pumping chamber and an interconnect means coupled to the pumping chamber of the ventricle for receiving and displacing hydraulic fluid. A separate volume displacement chamber is attached to the interconnect means and provides a reservoir for excess hydraulic fluid for storage during diastole. A fluid pump and drive motor is positioned within the volume displacement chamber and connected at the interconnect means to supply the required pumping action for transfer of hydraulic fluid to and from the pumping chamber. Placement of the fluid pump and drive motor within the volume displacement chamber provides enhanced dissipation of heat from the energy conversion system and improved performance and durability.

    摘要翻译： 一种心室辅助装置，用于放置在生物体内，并且包括用于产生相对于液压泵送流体的泵送作用的独立驱动马达。 心室辅助装置包括具有血液室和泵送室的心室和联接到心室的泵送室的互连装置，用于接收和移位液压流体。 单独的体积位移腔室连接到互连装置，并且在舒张期期间提供用于多余液压流体储存的储存器。 流体泵和驱动马达定位在体积位移室内并且在互连装置处连接以提供所需的泵送动作以将液压流体传送到泵送室和从泵送室传送。 流体泵和驱动电机在体积位移室内的放置提高了来自能量转换系统的热量的消耗，并提高了性能和耐久性。

    Implantable VAD with replaceable percutaneous cable
    3.
    发明授权
    Implantable VAD with replaceable percutaneous cable 有权
    可植入VAD与可更换的经皮电缆

    公开(公告)号：US08382830B2

    公开(公告)日：2013-02-26

    申请号：US12602926

    申请日：2008-06-06

    申请人： Tim Maher ,  Jim Lee ,  Ron Ness ,  Herb Chen ,  Jesse Hubbard ,  Phillip J. Miller ,  John Barr ,  James W. Long ,  Karl Nelson

    发明人： Tim Maher ,  Jim Lee ,  Ron Ness ,  Herb Chen ,  Jesse Hubbard ,  Phillip J. Miller ,  John Barr ,  James W. Long ,  Karl Nelson

    IPC分类号： A61M1/10

    CPC分类号： A61M39/0247 ,  A61M1/1008 ,  A61M1/101 ,  A61M1/107 ,  A61M1/12 ,  A61M1/122 ,  A61M1/127 ,  A61M2039/0258 ,  A61M2039/0273

    摘要： There are disclosed apparatus and methods for replacing a percutaneous cable in connection with a vascular device. In an embodiment, the apparatus includes a distal disconnect coupler, a distal connector portion of the cable configured for removable connection with the distal disconnect coupler, and a connector cap configured for removable connection with the distal disconnect coupler and for tunneling through skin and tissue. In one embodiment, a method of repositioning a percutaneous cable in connection with a vascular device includes providing the cable with a distal disconnect coupler, disconnecting the cable at the distal disconnect coupler, attaching a connector cap to the distal disconnect coupler, removing the percutaneous cable from a first exit site, tunneling the connector cap together with the distal disconnect coupler through skin and tissue to form a new exit site, disconnecting the connector cap, and connecting the cable to the distal disconnect coupler.

    摘要翻译： 公开了与血管装置相关地替换经皮电缆的装置和方法。 在一个实施例中，所述装置包括远端断开联接器，所述电缆的远端连接器部分被构造成用于与所述远端断开连接器的可移除连接，以及连接器帽，所述连接器帽被配置为可移除地与所述远端断开连接器连接并且用于穿透皮肤和组织。 在一个实施例中，重新定位与血管装置相关联的经皮电缆的方法包括：将电缆提供远端断开耦合器，在远端断开耦合器处断开电缆，将连接器盖连接到远端断开耦合器，去除经皮电缆 从第一出口部位，通过皮肤和组织将连接器帽与远端断开连接器一起穿透，以形成新的出口部位，断开连接器盖并将电缆连接到远端断开连接器。

    IMPLANTABLE VAD WITH REPLACEABLE PERCUTANEOUS CABLE
    5.
    发明申请
    IMPLANTABLE VAD WITH REPLACEABLE PERCUTANEOUS CABLE 有权
    可更换的可变电缆

    公开(公告)号：US20100256440A1

    公开(公告)日：2010-10-07

    申请号：US12602926

    申请日：2008-06-06

    申请人： Tim Maher ,  Jim Lee ,  Ron Ness ,  Herb Chen ,  Jesse Hubbard ,  Phillip J. Miller ,  John Barr ,  James W. Long ,  Karl Nelson

    发明人： Tim Maher ,  Jim Lee ,  Ron Ness ,  Herb Chen ,  Jesse Hubbard ,  Phillip J. Miller ,  John Barr ,  James W. Long ,  Karl Nelson

    IPC分类号： A61N1/362

    CPC分类号： A61M39/0247 ,  A61M1/1008 ,  A61M1/101 ,  A61M1/107 ,  A61M1/12 ,  A61M1/122 ,  A61M1/127 ,  A61M2039/0258 ,  A61M2039/0273

    摘要： There are disclosed apparatus and methods for replacing a percutaneous cable in connection with a vascular device. In an embodiment, the apparatus includes a distal disconnect coupler, a distal connector portion of the cable configured for removable connection with the distal disconnect coupler, and a connector cap configured for removable connection with the distal disconnect coupler and for tunneling through skin and tissue. In one embodiment, a method of repositioning a percutaneous cable in connection with a vascular device includes providing the cable with a distal disconnect coupler, disconnecting the cable at the distal disconnect coupler, attaching a connector cap to the distal disconnect coupler, removing the percutaneous cable from a first exit site, tunneling the connector cap together with the distal disconnect coupler through skin and tissue to form a new exit site, disconnecting the connector cap, and connecting the cable to the distal disconnect coupler.

    摘要翻译： 公开了与血管装置相关地替换经皮电缆的装置和方法。 在一个实施例中，所述装置包括远端断开联接器，所述电缆的远端连接器部分被构造成用于与所述远端断开连接器的可移除连接，以及连接器帽，所述连接器帽被配置为可移除地与所述远端断开连接器连接并且用于穿透皮肤和组织。 在一个实施例中，重新定位与血管装置相关联的经皮电缆的方法包括：将电缆提供远端断开耦合器，在远端断开耦合器处断开电缆，将连接器盖连接到远端断开耦合器，去除经皮电缆 从第一出口部位，通过皮肤和组织将连接器帽与远端断开连接器一起穿透，以形成新的出口部位，断开连接器盖并将电缆连接到远端断开连接器。