CN101927038A - 旋转式血泵 - Google Patents

旋转式血泵 Download PDF

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CN101927038A
CN101927038A CN2010101195028A CN201010119502A CN101927038A CN 101927038 A CN101927038 A CN 101927038A CN 2010101195028 A CN2010101195028 A CN 2010101195028A CN 201010119502 A CN201010119502 A CN 201010119502A CN 101927038 A CN101927038 A CN 101927038A
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rotor
axle
magnet
pump
bearing
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CN101927038B (zh
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R·万普勒
D·兰西斯
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Orqis Medical Corp
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/20—Type thereof
    • A61M60/205—Non-positive displacement blood pumps
    • A61M60/216—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller
    • A61M60/226—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller the blood flow through the rotating member having mainly radial components
    • A61M60/232—Centrifugal pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/40—Details relating to driving
    • A61M60/403—Details relating to driving for non-positive displacement blood pumps
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    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
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    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
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    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/10—Location thereof with respect to the patient's body
    • A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
    • A61M60/126—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel
    • A61M60/148—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
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    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/043—Shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
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    • F04D29/22—Rotors specially for centrifugal pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F04D29/40—Casings; Connections of working fluid
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2316/00—Apparatus in health or amusement
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y10S415/90—Rotary blood pump

Abstract

本发明涉及旋转式血泵。旋转式泵的可用来替代机械接触轴承的各种包括液力轴承和磁轴承的“非接触”轴承机构。在一实施例中，一泵装置包括一界定一泵室(112)的泵壳体(110)。该泵壳体有一伸入该泵室中的心轴。该心轴中有一包括第一和第二磁铁(262，264)的心轴磁铁组件(160)。该第一和第二磁铁的位置互相紧临，其磁向量相反。由于不使用机械接触轴承，因此泵的使用寿命延长，对工作流体如血的破坏减小。

Description

旋转式血泵
本申请有关申请日为2004年9月14日且名称为“旋转式血泵”的申请号200480034041.7的分案申请。
发明领域
本发明涉及旋转式泵。特别涉及用于各种转子和叶轮结构的轴承。
发明背景
一般旋转式泵使用一叶轮，其中，该叶轮的运动用机械接触轴承在5个自由度(两个角自由度，三个平动自由度)上受到限制。某些工作流体会受到机械接触轴承的破坏。用具有接触轴承的泵抽运的血会发生血细胞溶解，即破坏血细胞。一般来说，某些场合需要使用能抽运需要小心处理的工作流体如血的高效液压且高功率的泵。
Wampler等人的美国专利No.6,234,772B1(“Wampler”)说明了一种有径向磁斥力轴承和轴向流体动力轴承的离心血泵。Woodard等人的美国专利No.6,250,880B1(“Woodard”)说明了一种其叶轮只受液体动力支撑的离心血泵。
两血泵都是基于轴向磁通间隙电动机的设计。叶轮中携带电动机的驱动磁铁，从而用作电动机转子。在此两种情况中，驱动磁铁都位于叶轮的叶片中。驱动绕组的位置在泵室外但在用作电动机定子的泵壳体内。由于电动机与泵一体化，因此省略了驱动轴和泵的密封。该泵/电动机包括增强用于驱动叶轮的磁通的背铁。
两血泵的问题都是液力不足，其至少一部分的原因是将磁铁设置在叶轮叶片中要求大且非常规的叶片几何形状。
该泵要有效工作必须克服叶片携带的磁铁与背铁之间很大的自然轴向吸力。尽管叶片与泵壳体之间不发生接触，但液力轴承会由于与液力轴承承载的负载有关的剪切力造成血细胞的破坏。因此只使用液力轴承可能对血有害。
发明内容
鉴于公知血泵和方法的不足，旋转式泵用各种“非接触”轴承机构取代机械接触轴承。用各种转子和壳体设计特征实现磁轴承和液力轴承。这些设计特征可组合在一起。由于不使用机械接触轴承，因此泵的使用寿命延长，对工作流体如血的破坏减小。
在一实施例中，该泵包括一磁推力轴承。该泵包括界定泵室的泵壳体。该泵壳体有伸入该泵室中的心轴。该心轴设有包括第一和第二磁铁的心轴磁铁组件。该心轴磁铁组件的第一和第二磁铁的位置互相紧临，其磁向量相反。该泵包括有可围绕该心轴转动的叶轮的转子。该转子的非叶片部中设有包括第一和第二磁铁的转子磁铁组件。该转子磁铁组件的第一和第二磁铁的位置互相紧临，其磁向量相反。心轴和转子磁铁组件的相对方向选择成使得心轴和转子磁铁组件互相吸引。该转子可包括开槽孔。在各实施例中，含有的液力轴承用于径向支撑或轴向支撑或径向和轴向支撑。
附图说明
下面结合例示性附图举例说明本发明，在各附图中相同部件用同一标号表示，附图中：
图1为一有一被动轴向磁轴承的泵的剖面图；
图2示出该被动轴向磁轴承一实施例；
图3示出该被动轴向磁轴承的中央和偏心设置；
图4示出一叶轮实施例；以及
图5示出该泵的一实施例用于医学中。
具体实施方式
图1示出一离心血泵的一个实施例。该泵包括界定在进口114和出口116之间的泵室112的壳体110。在该泵室中，转子120围绕从该泵壳体底部伸出的心轴130转动。该转子还包括界定提供流体流动面的叶轮的叶片部。该叶轮包括一个或多个在叶轮转动时推动流体的叶片121。
“转子”和“叶轮”在某些上下文中的意思相同。例如，转子转动时，转子的叶片部也转动，因此可以说转子转动，也可说叶轮转动。但需要时可用“转子的非叶片部”或“叶轮之外的转子”专指转子的在叶片之外的部分。转子的每一叶片都可称为叶轮，但叶轮一般指一个或多个叶片的集合。
该泵建立在活动磁铁轴向磁通间隙电动机结构。在一实施例中，该电动机为一无刷DC电动机。转子中的磁铁122的磁向量与转子转动轴线190平行。在所示实施例中，驱动磁铁位于转子的非叶片部内。
驱动绕组140位于泵壳体内。电力加到驱动绕组生成与驱动磁铁互相作用的随时间而变的电流，使得叶轮转动。一背铁150增强电动机转子磁铁产生的磁通。在一实施例中，转子底面124或下泵壳体的相对表面118具有这样的表面(如172)：在转子与壳体之间间隙小于一预定阈值时能形成液力轴承。在一实施例中，该预定阈值为0.0002-0.003英寸。
背铁150与转子承载的驱动磁铁122之间的自然吸引会在转子上生成很大的轴向载荷。该轴向载荷存在于诸如Wampler或Woodard的轴向磁通间隙电动机结构的离心泵中。Wampler和Woodard都靠液力推力轴承克服该轴向载荷力。尽管叶片与泵壳体之间不发生接触，但液力轴承会由于与该液力轴承承载的负载有关的剪切力造成血细胞的破坏。
Wampler的径向斥力磁轴承加重了驱动磁铁与背铁之间磁吸引生成的轴向力。尽管径向斥力磁轴承生成径向稳定性，但造成很大轴向不稳定性。该轴向不稳定性可进一步提高轴向载荷。不管使用什么样的轴向液力轴承，该额外的轴向力造成更大的剪切力，从而造成血细胞溶解。此外，维持液力轴承所需功率随着该载荷的增加而增加。因此高负载的液力轴承的功耗大。
图1血泵包括用来减小或抵消由驱动磁铁与背铁之间的相互作用作用而施加在转子上的轴向载荷的轴向磁轴承。该轴向磁轴承由位于心轴内的心轴磁铁组件160与由转子携带的转子磁铁组件180之间的相互作用形成。在所示实施例中，转子磁铁组件180靠近叶轮，但转子磁铁组件的磁铁不位于叶片中。调节螺丝134通过在心轴的纵向轴线上移动心轴磁铁组件来纵向调节该轴向磁轴承的轴向位置。
图2示出轴向磁轴承实施例。转子磁铁组件包括互相紧临的第一转子轴承磁铁282和第二转子轴承磁铁284。第一和第二转子轴承磁铁为永久磁铁。在一实施例中，它们之间有一极片286。极片或磁通集中件用来集中转子轴承磁铁282和284生成的磁通。在另一实施例中，部件286只是帮助第一和第二轴承磁铁282、284定位的间隔件而不用来集中磁通。在其他实施例中，部件286省略，因此转子磁铁组件不包括间隔件或极片部件。
在一实施例中，部件282和284为单块环形永久磁铁。轴承磁铁也可呈非单块组合物。例如，轴承磁铁也可呈由多个饼形、弧段形或其它形状的永久磁铁组成的环形永久磁铁结构。
转子轴向轴承磁铁组件与转子的非叶片221部中的驱动磁铁222不同。在所示实施例中，驱动磁铁位于转子的非叶片部228中。
心轴磁铁组件包括第一心轴轴承磁铁262和第二心轴轴承磁铁264。第一和第二转子轴承磁铁为永久磁铁。在一实施例中，它们之间有一极片266。极片266集中心轴轴承磁铁262和264生成的磁通。在另一实施例中，部件266只是用作第一和第二心轴轴承磁铁定位的间隔件而不用来集中磁通。在其他实施例中，部件266省略，因此心轴磁铁组件不包括间隔件或极片部件。
在所示实施例中，永久磁铁262和264呈圆柱形。在其它实施例中也可使用其它形状。环形转子磁铁与叶轮一起围绕由心轴轴承磁铁组件使用的心轴纵向轴线转动。
心轴和转子轴承组件的永久磁铁布置成使得中间极片两边上的磁铁的磁向量互相相反。
一给定极片的两边与不同磁铁的相同极邻接。
因此，磁铁262和264的磁向量互相相反(例如N对N或S对S)。同样，磁铁282和284的磁向量互相相反。
各磁铁的方向选择成每当轴承在轴向上错位时建立轴向吸引。注意到，心轴和转子磁铁组件的相对方向选择成使得心轴和转子磁铁组件互相吸引(例如S对N，N对S)。为一组件的磁铁选定的磁向量方向决定着用于另一组件的磁铁的磁向量方向。表292示出第一和第二转子轴承磁铁(MR1，MR2)和第一和第二心轴轴承磁铁(MS1，MS2)的可接受的磁向量组合。使磁轴承组件发生轴向位移的背铁与驱动磁铁之间的磁吸引力至少部分地被轴向轴承之间恢复转子轴向位置的轴向磁吸引力抵消。
图2还示出在转子的非叶片部的一面(例如见图1底面124)与泵壳体背部之间的间隙小于一预定阈值时形成一液力轴承一部分的楔形面或斜面272。在各实施例中，该预定阈值为0.0002-0.003英寸。因此，在一实施例中，该泵包括一轴向液力轴承。提供该轴向液力轴承的表面几何形状可位于转子或壳体上。
尽管心轴磁铁组件用作轴向磁轴承，但心轴和转子磁铁组件之间的吸引力还有一径向分量。该径向分量可用来抵消由叶轮上的压力梯度对叶轮造成的径向负载。该径向分量还在开始转动时用作预加负载和在正常转动时用作偏置力防止转子围绕心轴偏心转动。偏心转动会造成不利于泵送作用的流体涡流或打旋。该偏置径向分量比方说在泵受到由移动或冲击造成的外力时有助于保持或恢复转子的径向位置和抽运作用。
在其他实施例中也可不用与转子轴承磁铁组件互相作用的心轴磁铁组件形成该磁轴承而用铁磁材料取代a)心轴磁铁组件或b)转子轴承磁铁组件之一(但不同时取代心轴磁铁组件和转子轴承磁铁组件)。
该磁轴承仍由一心轴部和一转子部组成，但心轴部和转子部之一使用铁磁材料，而另一部分使用永久磁铁。
铁磁材料与磁铁相互作用在转子与心轴之间形成磁吸引。铁磁材料的例子包括铁、镍和钴。
在一实施例中，铁磁材料为“软铁”。软铁的部分特征为矫顽磁性极低。因此不管其剩磁如何，软铁在外部磁场如该磁轴承系统的永久磁铁的磁场的作用下容易磁化(或再磁化)。
图3示出该磁轴承心轴部的各种设置位置。在一实施例中，心轴磁铁组件360的轴向与心轴的纵向轴线390重合，因此心轴和心轴磁铁组件的纵向中心轴线相同。在另一实施例中，心轴磁铁组件在径向上偏移，从而心轴和心轴磁铁组件的中心轴线不同。特别是，心轴磁铁组件360的纵向轴线362与心轴的纵向轴线390偏移。需要时可用这后一种位置设置来形成某种径向偏置力。叶轮上的压力差会在径向上把叶轮推向泵壳体的一边。这一径向力至少可部分地由偏移该心轴磁铁组件加以抵消。
尽管所示心轴和转子磁铁组件各包括2个磁元件，但磁铁组件也可各包括单块磁铁。每组件使用多个磁元件而不使用单块磁铁可提高弹簧比率。每组件使用两磁元件所生成的轴承比每组件使用单个磁元件可以更大弹簧比率矫正在轴向正反两个方向上离开稳定位置的位移(即稳定点之上和之下的位移)。
轴向磁轴承生成的磁力除了轴向分量还有径向分量。该径向分量会造成叶轮的不稳定。特别是，该径向分量会造成图1或2磁轴承径向位置不稳定。
可使用径向液力轴承克服该径向不稳定。参见图1，该泵可设计成沿转子的孔在心轴130与转子之间有一径向液力轴承(即液力滑动轴承)。图1所示间隙夸大。液力滑动轴承需要间隙很小才能工作。在各实施例中，该液力滑动轴承间隙为0.0005-0.020英寸。
可用作轴向(推力)或径向(滑动)液力轴承的表面几何形状可位于转子上，也可位于壳体(或心轴)的有关部位上。在一实施例中，该表面几何形状包括特征如一个或多个垫(即一生成间隙突变的特征如一高度均匀的台阶)。在另一实施例中，该表面几何形状包括特征如一个或多个斜面。
图4示出包括一叶轮的转子的一实施例。该叶轮包括多个用来抽运工作流体如血的叶片420。转子包括一孔410。转子孔与泵壳体中的心轴同纵向轴线。驱动磁铁(未示出)位于转子的非叶片部430内(即位于转子内但不在转子叶轮部的任何叶片内)。因此电动机转子和叶轮一体化，从而无需驱动轴。没有驱动轴就不需要轴密封。
在一实施例中，转子孔上开槽。特别是，该孔有一个或多个螺旋形槽。这些槽的轴向节距不为零。该槽在泵运转时与泵的工作流体连通。
图5示出泵510运转时把工作流体540从一工作流体源520传送到一工作流体目的地530。第一工作流体导管522连接该源与泵进口514。第二工作流体导管532连接泵出口516与该目的地。泵把工作流体从该源传送到该目的地。在医疗中，该工作流体例如为血。在一实施例中，该源和该目的地为动脉，因此该泵把血从一动脉传送到另一动脉。
以上说明了可替代旋转式泵的机械接触轴承的各种“非接触”轴承。特别用各种设计的转子、叶轮和壳体实现液力轴承或磁轴承。这种种设计需要时可组合使用。
以上结合具体例示性实施例详细说明了本发明。但可在由权利要求限定的本发明精神和范围内对之作出种种修正和改动。因此本说明书和附图应看出是例示性的而非限制性的。

Claims (10)

1.一种泵装置，包括：界定泵室(112)的泵壳体(110)，该泵壳体有一伸入该泵室中的心轴(130)；在该心轴内设置的包括第一和第二磁铁(262，264)的心轴磁铁组件(160)，其中，该第一和第二磁铁的位置互相紧临，其磁向量相反。
2.一种泵装置，包括：有一孔(410)的转子(120)，该转子包括有至少一个叶片(121)的叶轮；以及该转子内设置的包括第一和第二磁铁(282，284)的转子磁铁组件(180)，其中，该第一和第二磁铁的位置互相紧临，其磁向量相反。
3.一种泵装置，包括：界定泵室(112)的泵壳体(110)，该泵壳体有伸入该泵室中的心轴(130)；可围绕该心轴(130)转动的转子(120)，该转子包括有至少一个叶片(121)的叶轮；在该转子的非叶片部内设置的磁轴承的转子部(180)；以及该心轴内的该磁轴承的心轴部(160)，其中，该磁轴承的心轴部和转子部互相吸引；该磁轴承的转子部和心轴部中的至少一个包括第一和第二磁铁；该第一和第二磁铁的位置互相紧临，其磁向量相反。
4.一种泵装置，包括：界定一泵室(112)的泵壳体(110)，该泵壳体有一伸入该泵室中的心轴(130)；有一开槽孔(410)的转子(120)，该转子可围绕该心轴转动，该转子包括有至少一个叶片(121)的叶轮；在该转子的非叶片部内设置的磁轴承的转子部(180)；以及在该心轴内设置的该磁轴承的心轴部(160)，其中，该磁轴承的心轴部和转子部互相吸引；该磁轴承的转子部和心轴部中的至少一个包括第一和第二磁铁；该第一和第二磁铁的位置互相紧临，其磁向量相反。
5.一种泵装置，包括：界定泵室(112)的泵壳体(110)，该泵壳体有伸入该泵室中的心轴(130)；可围绕该心轴(130)转动的转子(120)，该转子包括有至少一个叶片(121)的叶轮；在该转子的非叶片部内设置的磁轴承的转子部(180)；该心轴内设置的该磁轴承的心轴部(160)，其中，该磁轴承的心轴部和转子部互相吸引；该磁轴承的转子部和心轴部中的至少一个包括第一和第二磁铁；该第一和第二磁铁的位置互相紧临，其磁向量相反；转子非叶片部承载的多个驱动磁铁(122)；以及泵壳体中的驱动绕组(140)，其中，驱动磁铁与驱动绕组配合而转动转子。
6.一种泵装置，包括：界定泵室(112)的泵壳体(110)，该泵壳体有一伸入该泵室中的心轴(130)；可围绕该心轴(130)转动的转子(120)，该转子包括有至少一个叶片(121)的叶轮；在该转子的非叶片部内设置的磁轴承的转子部(180)；该心轴内设置的该磁轴承的心轴部(160)，其中，该磁轴承的心轴部和转子部互相吸引；该磁轴承的转子部和心轴部中的至少一个包括第一和第二磁铁；该第一和第二磁铁的位置互相紧临，其磁向量相反；泵壳体和转子中的至少一个有构作成在转子与泵壳体之间生成液力轴承的表面。
7.按权利要求3-6之一所述的泵装置，其特征在于，该磁轴承的心轴部包括位置互相紧临、磁向量互相相反的第一和第二磁铁(262，264)；该磁轴承的转子部包括位置互相紧临、磁向量互相相反的第一和第二磁铁(282，284)。
8.按权利要求3-6之一所述的泵装置，其特征在于，该磁轴承的心轴部包括位置互相紧临、磁向量互相相反的第一和第二磁铁(262，264)；该磁轴承的转子部包括铁磁材料。
9.一种泵装置，包括：界定泵室(112)的泵壳体(110)，该泵壳体有伸入该泵室中的心轴(130)；在该心轴内设置的包括第一和第二磁铁(262，264)的心轴磁铁组件(160)，其中，第一和第二磁铁的位置互相紧临，其磁向量互相相反；该心轴磁铁组件的纵向轴线(362)与心轴的纵向轴线(390)偏离；以及一可围绕该心轴(130)转动的转子(120)，该转子包括有至少一个叶片(121)的叶轮，其中，该转子的一孔(410)上开槽。
10.一种泵装置，包括：界定泵室(112)的泵壳体(110)，该泵壳体有伸入该泵室中的心轴(130)；在该心轴内设置的包括第一和第二磁铁(262，264)的心轴磁铁组件(160)，其中，第一和第二磁铁的位置互相紧临，其磁向量互相相反；一可围绕该心轴转动的转子(120)，其中，该泵壳体有构作成在转动时至少局部支撑该转子的液力轴承的表面，该转子包括有至少一个叶片(121)的叶轮；以及在转子的非叶片部中设置的多个驱动磁铁(122)。
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103191476A (zh) * 2012-08-03 2013-07-10 上海交通大学医学院附属上海儿童医学中心 一种单支点磁动力离心式血泵
CN103957958A (zh) * 2012-03-27 2014-07-30 株式会社太阳医疗技术研究所 辅助人工心脏泵
CN107670135A (zh) * 2017-09-18 2018-02-09 上海交通大学医学院附属上海儿童医学中心 一种单支点磁动力驱动式离心泵及其驱动组件
CN108525039A (zh) * 2018-05-14 2018-09-14 苏州心擎医疗技术有限公司 泵装置
CN110464895A (zh) * 2019-06-26 2019-11-19 上海微创医疗器械（集团）有限公司 磁液悬浮式血泵
CN110496257A (zh) * 2018-05-18 2019-11-26 江苏心佑医疗器械有限公司 一种用于便携式心肺机的小型旋转式血泵
CN110714926A (zh) * 2018-07-11 2020-01-21 同心医疗器械（美国）有限公司 具有磁悬浮叶轮的紧凑型离心泵
CN113167279A (zh) * 2018-12-04 2021-07-23 盖茨公司 轴向磁通马达水泵

Families Citing this family (136)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPO902797A0 (en) * 1997-09-05 1997-10-02 Cortronix Pty Ltd A rotary blood pump with hydrodynamically suspended impeller
AUPP995999A0 (en) * 1999-04-23 1999-05-20 University Of Technology, Sydney Non-contact estimation and control system
AUPR514201A0 (en) * 2001-05-21 2001-06-14 Ventrassist Pty Ltd Staged implantation of ventricular assist devices
AU2003904032A0 (en) * 2003-08-04 2003-08-14 Ventracor Limited Improved Transcutaneous Power and Data Transceiver System
US7682301B2 (en) 2003-09-18 2010-03-23 Thoratec Corporation Rotary blood pump
US7798952B2 (en) 2003-10-09 2010-09-21 Thoratec Corporation Axial flow blood pump
US20060083642A1 (en) 2004-10-18 2006-04-20 Cook Martin C Rotor stability of a rotary pump
WO2007006080A1 (en) * 2005-07-12 2007-01-18 Ventracor Limited Restraining device for a percutaneous lead assembly
DE502005001847D1 (de) * 2005-09-24 2007-12-13 Grundfos Management As Pumpenaggregat
DE502005009681D1 (de) * 2005-09-24 2010-07-15 Grundfos Management As Tauchpumpenaggregat
US20070077155A1 (en) * 2005-09-30 2007-04-05 Intel Corporation Centrifugal pump with hydrodynamic bearing and double involute
US20070142696A1 (en) 2005-12-08 2007-06-21 Ventrassist Pty Ltd Implantable medical devices
EP3477103B1 (en) 2006-01-13 2022-03-02 HeartWare, Inc. Rotary blood pump
US8672611B2 (en) 2006-01-13 2014-03-18 Heartware, Inc. Stabilizing drive for contactless rotary blood pump impeller
CN100488577C (zh) * 2006-02-10 2009-05-20 北京航空航天大学 外轴承式人工心脏血液泵
WO2007105842A1 (en) * 2006-03-15 2007-09-20 Korea University Industrial & Academic Collaboration Foundation Rotary blood pump
US20070231135A1 (en) * 2006-03-31 2007-10-04 Orqis Medical Corporation Rotary Blood Pump
KR100805268B1 (ko) 2006-04-18 2008-02-25 고려대학교 산학협력단 회전식 혈액펌프
EP2026856B1 (en) 2006-05-31 2015-08-26 VADovations, Inc. Heart assistance device
DE102006036948A1 (de) 2006-08-06 2008-02-07 Akdis, Mustafa, Dipl.-Ing. Blutpumpe
EP2076681B1 (en) 2006-10-24 2018-05-09 ResMed Motor Technologies Inc. Brushless dc motor with bearings
US20080133006A1 (en) * 2006-10-27 2008-06-05 Ventrassist Pty Ltd Blood Pump With An Ultrasonic Transducer
US20080100163A1 (en) * 2006-10-27 2008-05-01 Allen Gary Storaasli Magnetic suspension with integrated motor
US20080200750A1 (en) * 2006-11-17 2008-08-21 Natalie James Polymer encapsulation for medical device
WO2008116752A1 (en) * 2007-03-28 2008-10-02 Arcelik Anonim Sirketi A compressor
JP5442598B2 (ja) * 2007-04-30 2014-03-12 ハートウェア、インコーポレイテッド 遠心回転血液ポンプ
US10117981B2 (en) * 2008-02-08 2018-11-06 Heartware, Inc. Platinum-cobalt-boron blood pump element
WO2009157408A1 (ja) 2008-06-23 2009-12-30 テルモ株式会社 血液ポンプ装置
ITPN20080051A1 (it) * 2008-06-24 2009-12-25 Mate S A S Macchina operatrice, in particolare una motopompa a motore assiale
US8513826B2 (en) * 2008-06-26 2013-08-20 Ed Mazur Wind turbine
EP2116237A1 (en) * 2008-08-05 2009-11-11 Polichem SA Compositions for treating rosacea comprising chitosan and a dicarboxylic acid
GB0816883D0 (en) * 2008-09-15 2008-10-22 Univ Aston Rotary blood pump
US9067005B2 (en) 2008-12-08 2015-06-30 Thoratec Corporation Centrifugal pump apparatus
DE102008064099B4 (de) * 2008-12-19 2016-05-04 Bühler Motor GmbH Kreiselpumpe mit einer feststehenden Achse
JP5378010B2 (ja) 2009-03-05 2013-12-25 ソラテック コーポレーション 遠心式ポンプ装置
US8770945B2 (en) 2009-03-06 2014-07-08 Thoratec Corporation Centrifugal pump apparatus
EP2273124B1 (de) * 2009-07-06 2015-02-25 Levitronix GmbH Zentrifugalpumpe und Verfahren zum Ausgleichen des axialen Schubs in einer Zentrifugalpumpe
WO2011062633A1 (en) 2009-11-19 2011-05-26 Resmed Motor Technologies, Inc. Blower
US8556601B2 (en) * 2009-12-16 2013-10-15 Pc-Fan Technology Inc. Heat-dissipating fan assembly
JP5443197B2 (ja) 2010-02-16 2014-03-19 ソラテック コーポレーション 遠心式ポンプ装置
EP2554191B1 (en) 2010-03-26 2019-05-08 Thoratec Corporation Centrifugal blood pump device
KR20130113317A (ko) 2010-04-30 2013-10-15 클린 커런트 리미티드 파트너쉽 강화된 덕트, 블레이드 및 발전기를 가진 단방향 수력 터빈
DE102010024650A1 (de) 2010-05-04 2011-11-10 Medos Medizintechnik Ag Blutpumpe mit einem Rotor
EP2585129B8 (en) 2010-06-22 2017-07-12 Tc1 Llc Fluid delivery system and method for monitoring fluid delivery system
JP5540153B2 (ja) 2010-06-22 2014-07-02 ソラテック コーポレーション ポンプの圧力−流量特性を改変するための装置
JP5681403B2 (ja) 2010-07-12 2015-03-11 ソーラテック コーポレイション 遠心式ポンプ装置
USD669585S1 (en) 2010-08-20 2012-10-23 Thoratec Corporation Implantable blood pump
TW201225997A (en) 2010-08-20 2012-07-01 Thoratec Corp Assembly and method for stabilizing a percutaneous cable
KR101781010B1 (ko) * 2010-09-01 2017-10-23 레비트로닉스 게엠베하 회전 펌프
JP5577506B2 (ja) 2010-09-14 2014-08-27 ソーラテック コーポレイション 遠心式ポンプ装置
US8551163B2 (en) 2010-10-07 2013-10-08 Everheart Systems Inc. Cardiac support systems and methods for chronic use
US9227001B2 (en) * 2010-10-07 2016-01-05 Everheart Systems Inc. High efficiency blood pump
US9265870B2 (en) 2010-10-13 2016-02-23 Thoratec Corporation Pumping blood
US9496924B2 (en) 2010-12-10 2016-11-15 Everheart Systems, Inc. Mobile wireless power system
AU2012220358B2 (en) * 2011-02-25 2014-11-06 Resmed Motor Technologies Inc. Blower and PAP system
EP2693609B1 (en) 2011-03-28 2017-05-03 Thoratec Corporation Rotation and drive device and centrifugal pump device using same
WO2012159966A1 (de) * 2011-05-20 2012-11-29 Thoratec Switzerland Gmbh Rotationsmaschine, sowie vorrichtung mit einer rotationsmaschine
GB201112350D0 (en) * 2011-07-18 2011-08-31 Calon Cardio Technology Ltd Cardiac Pump
EP2549113B1 (de) * 2011-07-20 2018-10-24 Levitronix GmbH Magnetischer Rotor sowie Rotationspumpe mit einem magnetischen Rotor
WO2013056131A1 (en) 2011-10-13 2013-04-18 Reichenbach Steven H Pump and method for mixed flow blood pumping
WO2013082621A1 (en) 2011-12-03 2013-06-06 Indiana University Research And Technology Corporation Cavopulmonary viscous impeller assist device and method
JP6083929B2 (ja) 2012-01-18 2017-02-22 ソーラテック コーポレイション 遠心式ポンプ装置
JP5932375B2 (ja) * 2012-02-06 2016-06-08 メドテックハート株式会社 血液ポンプ
WO2013134319A1 (en) 2012-03-05 2013-09-12 Justin Aron Callaway Modular implantable medical pump
WO2013145135A1 (ja) * 2012-03-27 2013-10-03 株式会社サンメディカル技術研究所 補助人工心臓システム
KR20150008138A (ko) * 2012-04-20 2015-01-21 리제네다인 엘엘씨 풍력 터빈 및 기타 장치의 자기 부상을 위한 자석 구조
EP2719403B1 (en) 2012-10-12 2016-09-28 Abiomed Europe GmbH Centrifugal blood pump
US9371826B2 (en) 2013-01-24 2016-06-21 Thoratec Corporation Impeller position compensation using field oriented control
US9556873B2 (en) 2013-02-27 2017-01-31 Tc1 Llc Startup sequence for centrifugal pump with levitated impeller
US10294944B2 (en) 2013-03-08 2019-05-21 Everheart Systems Inc. Flow thru mechanical blood pump bearings
US9144638B2 (en) 2013-03-14 2015-09-29 Thoratec Corporation Blood pump rotor bearings
US9713663B2 (en) 2013-04-30 2017-07-25 Tc1 Llc Cardiac pump with speed adapted for ventricle unloading
US10052420B2 (en) 2013-04-30 2018-08-21 Tc1 Llc Heart beat identification and pump speed synchronization
GB2515275A (en) * 2013-06-07 2014-12-24 Calon Cardio Technology Ltd Bearing for a cardiac pump
WO2015023850A1 (en) * 2013-08-14 2015-02-19 Heartware, Inc. Impeller for axial flow pump
CN104511060A (zh) 2013-10-03 2015-04-15 北京精密机电控制设备研究所 血泵控制系统及血泵系统
GB2527059A (en) 2014-06-10 2015-12-16 Calon Cardio Technology Ltd Cardiac pump
US10030664B2 (en) * 2014-06-17 2018-07-24 Ch Biomedical (Usa) Inc. Centrifugal blood pump impeller and flow path
US9623161B2 (en) 2014-08-26 2017-04-18 Tc1 Llc Blood pump and method of suction detection
EP3223880A4 (en) 2014-11-26 2018-07-18 Tc1 Llc Pump and method for mixed flow blood pumping
EP3256183A4 (en) 2015-02-11 2018-09-19 Tc1 Llc Heart beat identification and pump speed synchronization
EP3256185B1 (en) 2015-02-12 2019-10-30 Tc1 Llc System and method for controlling the position of a levitated rotor
US10371152B2 (en) 2015-02-12 2019-08-06 Tc1 Llc Alternating pump gaps
WO2016130989A1 (en) 2015-02-13 2016-08-18 Thoratec Corporation Impeller suspension mechanism for heart pump
ES2839081T3 (es) * 2015-03-18 2021-07-05 Abiomed Europe Gmbh Bomba de sangre
DE102015207948A1 (de) 2015-04-29 2016-11-03 Ziehl-Abegg Se Einströmdüse für einen Radial-, Diagonal- oder Axialventilator und Radial-, Diagonal- oder Axialventilator mit einer Einströmdüse
EP3294367A4 (en) 2015-05-15 2019-01-16 Tc1 Llc BLOOD PUMP WITH IMPROVED AXIAL FLOW
US20170016449A1 (en) * 2015-07-14 2017-01-19 Hamilton Sundstrand Corporation Axial-flux induction motor pump
US10177627B2 (en) 2015-08-06 2019-01-08 Massachusetts Institute Of Technology Homopolar, flux-biased hysteresis bearingless motor
EP3141270A1 (de) 2015-09-11 2017-03-15 Berlin Heart GmbH Blutpumpe, vorzugsweise zur unterstützung eines herzens
EP3141271A1 (de) 2015-09-11 2017-03-15 Berlin Heart GmbH Blutpumpe, vorzugsweise zur unterstützung eines herzens
CN105343950B (zh) * 2015-09-25 2017-09-22 济南大学 一种采用液力悬浮轴承的人工血泵
CN205036629U (zh) * 2015-09-25 2016-02-17 讯凯国际股份有限公司 叶轮、流体泵及液冷装置
US20170130730A1 (en) * 2015-11-10 2017-05-11 Onesubsea Ip Uk Limited Axial bearing offloading in fluid processing machines
US10117983B2 (en) 2015-11-16 2018-11-06 Tc1 Llc Pressure/flow characteristic modification of a centrifugal pump in a ventricular assist device
US10326323B2 (en) 2015-12-11 2019-06-18 Whirlpool Corporation Multi-component rotor for an electric motor of an appliance
CN105688298B (zh) * 2016-01-13 2018-02-27 山东大学 新式内叶轮轴流式血泵
EP3196471B1 (de) * 2016-01-19 2023-08-23 Pfeiffer Vacuum Gmbh Vakuumpumpe
CN108601873A (zh) 2016-02-05 2018-09-28 柏林心脏有限公司 以被动磁力方式被支撑的血液泵
US10428828B2 (en) * 2016-06-20 2019-10-01 Terumo Cardiovascular Systems Corporation Centrifugal pumps for medical uses
US10377097B2 (en) * 2016-06-20 2019-08-13 Terumo Cardiovascular Systems Corporation Centrifugal pumps for medical uses
US10857273B2 (en) 2016-07-21 2020-12-08 Tc1 Llc Rotary seal for cantilevered rotor pump and methods for axial flow blood pumping
DE102016214700A1 (de) * 2016-08-08 2018-02-08 Efficient Energy Gmbh Elektrischer Scheibenläufer mit einem Druckreduzierer für den Motorspalt
DE102016214696A1 (de) * 2016-08-08 2018-02-08 Efficient Energy Gmbh Elektrischer Scheibenmotor mit Medientrennung im Motorspalt
WO2018031741A1 (en) 2016-08-12 2018-02-15 Tc1 Llc Devices and methods for monitoring bearing and seal performance
US10704180B2 (en) 2016-09-22 2020-07-07 Whirlpool Corporation Reinforcing cap for a tub rear wall of an appliance
CN107867324B (zh) * 2016-09-28 2019-11-08 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
EP3324255B1 (en) * 2016-11-18 2020-01-29 Eurotherm Limited Process controller having adjustable parameters
US10731653B2 (en) 2017-01-27 2020-08-04 Regal Beloit Australia Pty Ltd Centrifugal pump assemblies having an axial flux electric motor and methods of assembly thereof
US10865794B2 (en) * 2017-01-27 2020-12-15 Regal Beloit Australia Pty Ltd Centrifugal pump assemblies having an axial flux electric motor and methods of assembly thereof
US10830252B2 (en) * 2017-01-27 2020-11-10 Regal Beloit Australia Pty Ltd Centrifugal pump assemblies having an axial flux electric motor and methods of assembly thereof
US10584739B2 (en) 2017-01-27 2020-03-10 Regal Beloit Australia Pty Ltd Centrifugal pump assemblies having an axial flux electric motor and methods of assembly thereof
AU2018213376A1 (en) * 2017-01-27 2019-08-15 Regal Beloit America, Inc. Centrifugal pump assemblies having an axial flux electric motor and methods of assembly thereof
DE102017102825A1 (de) * 2017-02-13 2018-08-16 Cardiobridge Gmbh Katheterpumpe mit Antriebseinheit und Katheter
WO2018158838A1 (ja) * 2017-02-28 2018-09-07 株式会社サンメディカル技術研究所 血液ポンプ及び血液ポンプ調整方法
CA3061644A1 (en) * 2017-04-28 2018-11-01 Nuheart As Ventricular assist device and method
US10693336B2 (en) 2017-06-02 2020-06-23 Whirlpool Corporation Winding configuration electric motor
CN110944689B (zh) 2017-06-07 2022-12-09 施菲姆德控股有限责任公司 血管内流体运动设备、系统和使用方法
CN107296988A (zh) * 2017-06-19 2017-10-27 广东顺德工业设计研究院(广东顺德创新设计研究院) 无叶片血泵
US10905807B2 (en) 2017-07-13 2021-02-02 CORVION, Inc. High efficiency blood pump
GB2565592A (en) * 2017-08-18 2019-02-20 Cooltera Ltd A cooling unit
CN111556763B (zh) 2017-11-13 2023-09-01 施菲姆德控股有限责任公司 血管内流体运动装置、系统
US10833570B2 (en) 2017-12-22 2020-11-10 Massachusetts Institute Of Technology Homopolar bearingless slice motors
JP7410034B2 (ja) 2018-02-01 2024-01-09 シファメド・ホールディングス・エルエルシー 血管内血液ポンプならびに使用および製造の方法
US11596783B2 (en) 2018-03-06 2023-03-07 Indiana University Research & Technology Corporation Blood pressure powered auxiliary pump
US10722627B1 (en) 2018-05-24 2020-07-28 RBTS Inc. Blood pump bearing with integrated fluid diffuser/inducer system
CN111561519B (zh) * 2019-02-14 2021-06-25 苏州心擎医疗技术有限公司 用于磁悬浮轴承的刚度增益机构、磁悬浮轴承和血泵
WO2021016372A1 (en) 2019-07-22 2021-01-28 Shifamed Holdings, Llc Intravascular blood pumps with struts and methods of use and manufacture
EP3795836A1 (de) * 2019-09-18 2021-03-24 Levitronix GmbH Zentrifugalpumpe und pumpengehäuse
WO2021062265A1 (en) 2019-09-25 2021-04-01 Shifamed Holdings, Llc Intravascular blood pump systems and methods of use and control thereof
CA3161876A1 (en) 2019-12-18 2021-06-24 Baker Hughes Oilfield Operations, Llc Oscillating shear valve for mud pulse telemetry and operation thereof
CN115298441A (zh) * 2020-01-21 2022-11-04 波士顿科学国际有限公司 用于血液泵的具有通量增强器的磁性驱动件
CN111442029B (zh) * 2020-05-07 2021-11-16 南京邮电大学 主动径向磁轴承用位移传感器容错控制系统及控制方法
CN115667671A (zh) 2020-06-02 2023-01-31 贝克休斯油田作业有限责任公司 用于剪切阀脉冲器的角相关阀释放单元
DE102020117818A1 (de) * 2020-07-07 2022-01-13 Resuscitec Gmbh Blutpumpe
US20230320844A1 (en) 2022-03-23 2023-10-12 ConneX BioMedical, Inc. Apparatus and Method for Transcardiac Valve Delivery

Family Cites Families (283)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US486080A (en) * 1892-11-15 Hand-stamp
US1902418A (en) * 1931-11-02 1933-03-21 Jensen Salsbery Lab Inc Surgical instrument
US2356659A (en) 1941-11-24 1944-08-22 Aguiar Clovis De Paiva Nozzle for duodenal pump tubes
US3960468A (en) 1946-07-16 1976-06-01 The United States Of America As Represented By The United States Energy Research And Development Administration Fluid lubricated bearing assembly
US2649052A (en) 1947-04-17 1953-08-18 Marine Products Company Rotary pump or motor
US2684035A (en) 1947-10-02 1954-07-20 Philip G Kemp Fluid pump
US2664050A (en) 1949-03-02 1953-12-29 Gen Motors Corp Domestic appliance
US2789511A (en) 1953-05-25 1957-04-23 Jabsco Pump Co Flexible vane pump impeller
US2935068A (en) * 1955-08-04 1960-05-03 Donaldson John Shearman Surgical procedure and apparatus for use in carrying out the same
US3080824A (en) 1961-02-27 1963-03-12 James A Boyd Fluid moving device
US3420184A (en) * 1967-05-17 1969-01-07 Julius L Englesberg Pump employing magnetic drive
US3510229A (en) 1968-07-23 1970-05-05 Maytag Co One-way pump
US3608088A (en) 1969-04-17 1971-09-28 Univ Minnesota Implantable blood pump
US3860968A (en) 1969-11-20 1975-01-21 Max Shapiro Compact, implantable apparatus for pumping blood to sustain blood circulation in a living body
US3647324A (en) * 1969-12-18 1972-03-07 Edson Howard Rafferty Electrically driven pumps capable of use as heart pumps
DE2138152C3 (de) 1971-07-30 1974-05-09 W.C. Heraeus Gmbh, 6450 Hanau Lageranordnung für den Läufer einer Turbomolekularpumpe
US3812812A (en) 1973-06-25 1974-05-28 M Hurwitz Trolling propeller with self adjusting hydrodynamic spoilers
FR2267800A1 (en) 1974-04-17 1975-11-14 Anvar Catheter insertion system - uses auxiliary fluid injected in catheter and forming propulsion jets
DE2457783C2 (de) * 1974-12-06 1986-10-09 Arthur Pfeiffer Vakuumtechnik Wetzlar Gmbh, 6334 Asslar Magnetische Lagerung
US4458366C1 (en) 1975-05-09 2001-02-20 David C Macgregor Artificial implantable blood pump
LU77252A1 (zh) 1976-05-06 1977-08-22
US4135253A (en) 1976-11-30 1979-01-23 Medtronic, Inc. Centrifugal blood pump for cardiac assist
JPS5945850B2 (ja) * 1979-07-13 1984-11-09 株式会社日立製作所 スラスト軸受
GB2058231B (en) 1979-09-07 1982-01-20 Woodcoxon Eng International Lt Variable pitch marine propellers
JPS5696198A (en) * 1979-12-27 1981-08-04 Matsushita Electric Ind Co Ltd Pump
JPH0247496Y2 (zh) 1980-05-21 1990-12-13
US4382199A (en) 1980-11-06 1983-05-03 Nu-Tech Industries, Inc. Hydrodynamic bearing system for a brushless DC motor
US4688998A (en) 1981-03-18 1987-08-25 Olsen Don B Magnetically suspended and rotated impellor pump apparatus and method
US4944748A (en) 1986-10-12 1990-07-31 Bramm Gunter W Magnetically suspended and rotated rotor
US5078741A (en) * 1986-10-12 1992-01-07 Life Extenders Corporation Magnetically suspended and rotated rotor
DE3214397C2 (de) 1982-04-20 1984-07-26 Karl Dr. 6301 Pohlheim Aigner Perfusions-Doppellumenkatheter
US4806080A (en) * 1983-07-06 1989-02-21 Ebara Corporation Pump with shaftless impeller
US4704121A (en) 1983-09-28 1987-11-03 Nimbus, Inc. Anti-thrombogenic blood pump
US4625712A (en) 1983-09-28 1986-12-02 Nimbus, Inc. High-capacity intravascular blood pump utilizing percutaneous access
US4589822A (en) 1984-07-09 1986-05-20 Mici Limited Partnership Iv Centrifugal blood pump with impeller
EP0171515B1 (de) 1984-07-16 1987-09-02 CP Pumpen AG Kreiselpumpe mit Spaltrohrtopf
US4686982A (en) 1985-06-19 1987-08-18 John Nash Spiral wire bearing for rotating wire drive catheter
US4769006A (en) 1985-05-13 1988-09-06 Kos Medical Technologies, Ltd. Hydrodynamically propelled pacing catheter
JPS6352992U (zh) * 1986-09-25 1988-04-09
US4753221A (en) 1986-10-22 1988-06-28 Intravascular Surgical Instruments, Inc. Blood pumping catheter and method of use
US4779614A (en) * 1987-04-09 1988-10-25 Nimbus Medical, Inc. Magnetically suspended rotor axial flow blood pump
US4902272A (en) 1987-06-17 1990-02-20 Abiomed Cardiovascular, Inc. Intra-arterial cardiac support system
US4930997A (en) * 1987-08-19 1990-06-05 Bennett Alan N Portable medical suction device
JP2509468Y2 (ja) * 1987-09-14 1996-09-04 セイコー精機株式会社 回転体軸受装置
US4817586A (en) * 1987-11-24 1989-04-04 Nimbus Medical, Inc. Percutaneous bloom pump with mixed-flow output
US4846152A (en) 1987-11-24 1989-07-11 Nimbus Medical, Inc. Single-stage axial flow blood pump
US4895557A (en) 1987-12-07 1990-01-23 Nimbus Medical, Inc. Drive mechanism for powering intravascular blood pumps
US4906229A (en) 1988-05-03 1990-03-06 Nimbus Medical, Inc. High-frequency transvalvular axisymmetric blood pump
FR2632686B1 (zh) 1988-06-14 1993-07-16 Thomson Brandt Armements
US4908012A (en) * 1988-08-08 1990-03-13 Nimbus Medical, Inc. Chronic ventricular assist system
US4964864A (en) 1988-09-27 1990-10-23 American Biomed, Inc. Heart assist pump
JPH0653161B2 (ja) * 1988-09-28 1994-07-20 東洋紡績株式会社 循環装置
JPH0293120A (ja) * 1988-09-30 1990-04-03 Toshiba Corp スラスト磁気軸受装置
US4919647A (en) 1988-10-13 1990-04-24 Kensey Nash Corporation Aortically located blood pumping catheter and method of use
US4957504A (en) 1988-12-02 1990-09-18 Chardack William M Implantable blood pump
US4969865A (en) 1989-01-09 1990-11-13 American Biomed, Inc. Helifoil pump
US4944722A (en) 1989-02-23 1990-07-31 Nimbus Medical, Inc. Percutaneous axial flow blood pump
US4995857A (en) 1989-04-07 1991-02-26 Arnold John R Left ventricular assist device and method for temporary and permanent procedures
US5324177A (en) * 1989-05-08 1994-06-28 The Cleveland Clinic Foundation Sealless rotodynamic pump with radially offset rotor
US5049134A (en) * 1989-05-08 1991-09-17 The Cleveland Clinic Foundation Sealless heart pump
US5089016A (en) 1989-06-15 1992-02-18 Abiomed Cardiovascular, Inc. Blood pump
US4985014A (en) * 1989-07-11 1991-01-15 Orejola Wilmo C Ventricular venting loop
US5021048A (en) 1989-08-04 1991-06-04 Medtronic, Inc. Blood pump drive system
US5147186A (en) 1989-08-04 1992-09-15 Bio Medicus, Inc. Blood pump drive system
US4994722A (en) * 1989-10-02 1991-02-19 The Boeing Company Automated door locking system for aircraft lavatory
US4984972A (en) * 1989-10-24 1991-01-15 Minnesota Mining And Manufacturing Co. Centrifugal blood pump
JPH0367310U (zh) * 1989-11-07 1991-07-01
US5098256A (en) * 1989-11-21 1992-03-24 The Cleveland Clinic Foundation Viscous seal blood pump
US5112202A (en) 1990-01-31 1992-05-12 Ntn Corporation Turbo pump with magnetically supported impeller
FR2659396B1 (fr) * 1990-03-07 1992-05-15 Cit Alcatel Pompe a vide pour vide moleculaire propre.
US5092844A (en) * 1990-04-10 1992-03-03 Mayo Foundation For Medical Education And Research Intracatheter perfusion pump apparatus and method
US5112200A (en) * 1990-05-29 1992-05-12 Nu-Tech Industries, Inc. Hydrodynamically suspended rotor axial flow blood pump
US5211546A (en) * 1990-05-29 1993-05-18 Nu-Tech Industries, Inc. Axial flow blood pump with hydrodynamically suspended rotor
DE4020120A1 (de) 1990-06-25 1991-01-31 Klaus Prof Dr Ing Affeld Medizinische vorrichtung zur erzeugung eines alternierenden volumenstroms fuer den antrieb von implantierbaren blutpumpen
US5036235A (en) 1990-07-25 1991-07-30 Xerox Corporation Brushless DC motor having a stable hydrodynamic bearing system
CA2022019C (en) 1990-07-26 1992-12-29 Michael Black Catheter
AU8515791A (en) 1990-08-24 1992-03-17 Baylor College Of Medicine Cardiac assist centrifugal pump
JP2928615B2 (ja) 1990-09-28 1999-08-03 株式会社日立製作所 ターボ真空ポンプ
US5195877A (en) * 1990-10-05 1993-03-23 Kletschka Harold D Fluid pump with magnetically levitated impeller
US5470208A (en) * 1990-10-05 1995-11-28 Kletschka; Harold D. Fluid pump with magnetically levitated impeller
US5055005A (en) * 1990-10-05 1991-10-08 Kletschka Harold D Fluid pump with levitated impeller
US5190528A (en) * 1990-10-19 1993-03-02 Boston University Percutaneous transseptal left atrial cannulation system
JPH04236818A (ja) * 1991-01-22 1992-08-25 Ebara Corp 回転体支持装置
US5171212A (en) 1991-02-08 1992-12-15 Minnesota Mining And Manufacturing Company Blood pumping system with backflow warning
US5209650A (en) * 1991-02-28 1993-05-11 Lemieux Guy B Integral motor and pump
US5106372A (en) 1991-05-03 1992-04-21 Sherwood Medical Company Single use syringe
US5584803A (en) * 1991-07-16 1996-12-17 Heartport, Inc. System for cardiac procedures
JP2713515B2 (ja) 1991-09-17 1998-02-16 禎祐 山内 カテーテル装置
US5449342A (en) 1991-09-30 1995-09-12 Nippon Zeon Co., Ltd. Apparatus for assisting blood circulation
US5360445A (en) * 1991-11-06 1994-11-01 International Business Machines Corporation Blood pump actuator
US5350283A (en) 1991-12-04 1994-09-27 Ntn Corporation Clean pump
US5201679A (en) * 1991-12-13 1993-04-13 Attwood Corporation Marine propeller with breakaway hub
US6302910B1 (en) * 1992-06-23 2001-10-16 Sun Medical Technology Research Corporation Auxiliary artificial heart of an embedded type
US5300112A (en) 1992-07-14 1994-04-05 Aai Corporation Articulated heart pump
EP0653022B1 (en) 1992-07-30 2001-12-05 Cobe Cardiovascular, Inc. Centrifugal blood pump
US5458459A (en) 1992-07-30 1995-10-17 Haemonetics Corporation Centrifugal blood pump with impeller blades forming a spin inducer
US5676651A (en) * 1992-08-06 1997-10-14 Electric Boat Corporation Surgically implantable pump arrangement and method for pumping body fluids
US5290227A (en) 1992-08-06 1994-03-01 Pasque Michael K Method of implanting blood pump in ascending aorta or main pulmonary artery
US5312341A (en) 1992-08-14 1994-05-17 Wayne State University Retaining apparatus and procedure for transseptal catheterization
SE501215C2 (sv) 1992-09-02 1994-12-12 Oeyvind Reitan Kateterpump
US5713730A (en) * 1992-09-04 1998-02-03 Kyocera Corporation Ceramic pivot bearing arrangement for a sealless blood pump
JP3207858B2 (ja) * 1992-10-19 2001-09-10 ザ クリーブランド クリニック ファウンデーション 無シールロトダイナミックポンプ
US5376114A (en) 1992-10-30 1994-12-27 Jarvik; Robert Cannula pumps for temporary cardiac support and methods of their application and use
FR2698560B1 (fr) 1992-11-30 1995-02-03 Virbac Laboratoires Principes actifs pulvérulents stabilisés, compositions les contenant, leur procédé d'obtention et leurs applications.
US5385471A (en) * 1993-01-05 1995-01-31 Chuen; Ng T. Cerec inlay holder and inserter
US5643226A (en) 1993-02-24 1997-07-01 Minnesota Mining And Manufacturing Low velocity aortic cannula
DE4321260C1 (de) * 1993-06-25 1995-03-09 Westphal Dieter Dipl Ing Dipl Blutpumpe als Zentrifugalpumpe
CA2165829A1 (en) 1993-07-01 1995-01-19 John E. Abele Imaging, electrical potential sensing, and ablation catheters
US5527159A (en) 1993-11-10 1996-06-18 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Rotary blood pump
ES2077519B1 (es) * 1993-11-22 1996-07-01 Fernandez De Lomana Euge Anaya Cateter intraaortico para perfusion y conservacion renal.
US5437541A (en) 1993-12-30 1995-08-01 Vainrub; John Blade for axial fan
US5597377A (en) 1994-05-06 1997-01-28 Trustees Of Boston University Coronary sinus reperfusion catheter
US5607407A (en) 1994-05-09 1997-03-04 Tolkoff; Marc J. Catheter assembly
US5947093A (en) * 1994-11-08 1999-09-07 Ignition Systems International, Llc. Hybrid ignition with stress-balanced coils
US5613935A (en) * 1994-12-16 1997-03-25 Jarvik; Robert High reliability cardiac assist system
JPH08191905A (ja) * 1995-01-13 1996-07-30 Sumitomo Rubber Ind Ltd ゴルフボール
US5725357A (en) 1995-04-03 1998-03-10 Ntn Corporation Magnetically suspended type pump
US5707218A (en) 1995-04-19 1998-01-13 Nimbus, Inc. Implantable electric axial-flow blood pump with blood cooled bearing
US5588812A (en) 1995-04-19 1996-12-31 Nimbus, Inc. Implantable electric axial-flow blood pump
US5938412A (en) * 1995-06-01 1999-08-17 Advanced Bionics, Inc. Blood pump having rotor with internal bore for fluid flow
US5685700A (en) 1995-06-01 1997-11-11 Advanced Bionics, Inc. Bearing and seal-free blood pump
US5793974A (en) 1995-06-30 1998-08-11 Sun Microsystems, Inc. Network navigation and viewing system for network management system
US6007479A (en) 1996-07-08 1999-12-28 H.D.S. Systems Ltd. Heart assist system and method
DE19535781C2 (de) * 1995-09-26 1999-11-11 Fraunhofer Ges Forschung Vorrichtung zur aktiven Strömungsunterstützung von Körperflüssigkeiten
WO1997015228A1 (en) 1995-10-26 1997-05-01 Medisystems Technology Corporation Pressure measurement in blood treatment
US5824070A (en) 1995-10-30 1998-10-20 Jarvik; Robert Hybrid flow blood pump
US5947703A (en) * 1996-01-31 1999-09-07 Ntn Corporation Centrifugal blood pump assembly
US5695471A (en) * 1996-02-20 1997-12-09 Kriton Medical, Inc. Sealless rotary blood pump with passive magnetic radial bearings and blood immersed axial bearings
US5840070A (en) * 1996-02-20 1998-11-24 Kriton Medical, Inc. Sealless rotary blood pump
US5911685A (en) 1996-04-03 1999-06-15 Guidant Corporation Method and apparatus for cardiac blood flow assistance
DE19613564C1 (de) 1996-04-04 1998-01-08 Guenter Prof Dr Rau Intravasale Blutpumpe
US5868703A (en) * 1996-04-10 1999-02-09 Endoscopic Technologies, Inc. Multichannel catheter
US5738649A (en) 1996-04-16 1998-04-14 Cardeon Corporation Peripheral entry biventricular catheter system for providing access to the heart for cardiopulmonary surgery or for prolonged circulatory support of the heart
US5814011A (en) 1996-04-25 1998-09-29 Medtronic, Inc. Active intravascular lung
US5746709A (en) 1996-04-25 1998-05-05 Medtronic, Inc. Intravascular pump and bypass assembly and method for using the same
US6394769B1 (en) * 1996-05-03 2002-05-28 Medquest Products, Inc. Pump having a magnetically suspended rotor with one active control axis
US6302661B1 (en) * 1996-05-03 2001-10-16 Pratap S. Khanwilkar Electromagnetically suspended and rotated centrifugal pumping apparatus and method
US6074180A (en) * 1996-05-03 2000-06-13 Medquest Products, Inc. Hybrid magnetically suspended and rotated centrifugal pumping apparatus and method
US6254359B1 (en) 1996-05-10 2001-07-03 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method for providing a jewel bearing for supporting a pump rotor shaft
JPH09313600A (ja) 1996-05-28 1997-12-09 Terumo Corp 遠心式液体ポンプ装置
US6244835B1 (en) * 1996-06-26 2001-06-12 James F. Antaki Blood pump having a magnetically suspended rotor
US6015272A (en) * 1996-06-26 2000-01-18 University Of Pittsburgh Magnetically suspended miniature fluid pump and method of designing the same
US5756181A (en) 1996-07-23 1998-05-26 Minnesota Mining And Manufacturing Company Repellent and soil resistant carpet treated with ammonium polycarboxylate salts
DE19629614A1 (de) 1996-07-23 1998-01-29 Cardiotools Herzchirurgietechn Linksherzassistpumpe
AT404318B (de) 1996-07-29 1998-10-27 Heinrich Dr Schima Zentrifugalpumpe bestehend aus einem pumpenkopf und einem scheibenläuferantrieb zur förderung von blut und anderen scherempfindlichen flüssigkeiten
US5851174A (en) 1996-09-17 1998-12-22 Robert Jarvik Cardiac support device
US6783328B2 (en) 1996-09-30 2004-08-31 Terumo Cardiovascular Systems Corporation Method and apparatus for controlling fluid pumps
ES2227718T3 (es) 1996-10-04 2005-04-01 United States Surgical Corporation Sistema de apoyo circulatorio.
US6071093A (en) * 1996-10-18 2000-06-06 Abiomed, Inc. Bearingless blood pump and electronic drive system
US5888242A (en) * 1996-11-01 1999-03-30 Nimbus, Inc. Speed control system for implanted blood pumps
US5776111A (en) 1996-11-07 1998-07-07 Medical Components, Inc. Multiple catheter assembly
US5807311A (en) 1996-11-29 1998-09-15 Palestrant; Aubrey M. Dialysis catheter having rigid and collapsible lumens and related method
US5890883A (en) 1997-03-19 1999-04-06 The Cleveland Clinic Foundation Rotodynamic pump with non-circular hydrodynamic bearing journal
US5964694A (en) 1997-04-02 1999-10-12 Guidant Corporation Method and apparatus for cardiac blood flow assistance
AUPO902797A0 (en) * 1997-09-05 1997-10-02 Cortronix Pty Ltd A rotary blood pump with hydrodynamically suspended impeller
US6071190A (en) * 1997-05-21 2000-06-06 Casino Data Systems Gaming device security system: apparatus and method
DE69825907D1 (de) 1997-07-01 2004-09-30 Advanced Bionics Inc Rotor für eine blutpumpe
US6123725A (en) 1997-07-11 2000-09-26 A-Med Systems, Inc. Single port cardiac support apparatus
US6532964B2 (en) * 1997-07-11 2003-03-18 A-Med Systems, Inc. Pulmonary and circulatory blood flow support devices and methods for heart surgery procedures
US6709418B1 (en) * 1997-07-11 2004-03-23 A-Med Systems, Inc. Apparatus and methods for entering cavities of the body
WO1999004834A1 (fr) 1997-07-25 1999-02-04 Sun Medical Technology Research Corporation Systeme de commande portable pour coeur artificiel
US6059760A (en) 1997-08-14 2000-05-09 Medtronic, Inc. Cannula having reverse flow tip
DE59712162D1 (de) * 1997-09-04 2005-02-17 Levitronix Llc Waltham Zentrifugalpumpe
US6250880B1 (en) 1997-09-05 2001-06-26 Ventrassist Pty. Ltd Rotary pump with exclusively hydrodynamically suspended impeller
WO2000012148A2 (en) 1998-08-27 2000-03-09 A-Med Systems Inc. Intravascular cannulation apparatus and methods of use
JP2003521260A (ja) 1997-09-30 2003-07-15 エル．ヴァド テクノロジー，インコーポレイテッド 心臓血管系サポートコントロールシステム
US6610004B2 (en) 1997-10-09 2003-08-26 Orqis Medical Corporation Implantable heart assist system and method of applying same
UA56262C2 (uk) * 1997-10-09 2003-05-15 Орквіс Медікел Корпорейшн Імплантовувана система підтримки серця
US6387037B1 (en) 1997-10-09 2002-05-14 Orqis Medical Corporation Implantable heart assist system and method of applying same
US6422990B1 (en) 1997-11-26 2002-07-23 Vascor, Inc. Blood pump flow rate control method and apparatus utilizing multiple sensors
US5928131A (en) * 1997-11-26 1999-07-27 Vascor, Inc. Magnetically suspended fluid pump and control system
US6293901B1 (en) * 1997-11-26 2001-09-25 Vascor, Inc. Magnetically suspended fluid pump and control system
US6120537A (en) * 1997-12-23 2000-09-19 Kriton Medical, Inc. Sealless blood pump with means for avoiding thrombus formation
DE29804046U1 (de) 1998-03-07 1998-04-30 Schmitz Rode Thomas Dipl Ing D Perkutan implantierbare selbstentfaltbare Axialpumpe zur temporären Herzunterstützung
US6176822B1 (en) 1998-03-31 2001-01-23 Impella Cardiotechnik Gmbh Intracardiac blood pump
US6086527A (en) 1998-04-02 2000-07-11 Scimed Life Systems, Inc. System for treating congestive heart failure
CN2326258Y (zh) * 1998-04-16 1999-06-30 江苏理工大学 泵机合一的叶轮式心室辅助装置
JP2002512333A (ja) 1998-04-22 2002-04-23 ユニバーシティ・オブ・ユタ ハイブリッド磁性ベアリングを備える埋め込み可能な遠心型血液ポンプ
US6508777B1 (en) * 1998-05-08 2003-01-21 Cardeon Corporation Circulatory support system and method of use for isolated segmental perfusion
DE19821307C1 (de) 1998-05-13 1999-10-21 Impella Cardiotech Gmbh Intrakardiale Blutpumpe
WO2000006701A1 (en) 1998-07-31 2000-02-10 Genzyme Corporation Improvement of cardiac function by mesenchymal stem cell transplantation
US6135943A (en) 1998-08-07 2000-10-24 Cardiac Assist Technologies, Inc. Non-invasive flow indicator for a rotary blood pump
US6641558B1 (en) 1998-09-30 2003-11-04 A-Med Systems, Inc. Method and apparatus for preventing air embolisms
DE29821565U1 (de) 1998-12-02 2000-06-15 Impella Cardiotech Ag Lagerlose Blutpumpe
US6264635B1 (en) * 1998-12-03 2001-07-24 Kriton Medical, Inc. Active magnetic bearing system for blood pump
EP1140278B1 (en) 1998-12-14 2004-05-19 Tre Esse Progettazione Biomedica S.r.l Catheter system for performing intramyocardiac therapeutic treatment
US6926662B1 (en) 1998-12-23 2005-08-09 A-Med Systems, Inc. Left and right side heart support
US6158984A (en) 1998-12-28 2000-12-12 Kriton Medical, Inc. Rotary blood pump with ceramic members
GB9828696D0 (en) 1998-12-29 1999-02-17 Houston J G Blood-flow tubing
US7122019B1 (en) 2000-11-28 2006-10-17 Flowmedica Inc. Intra-aortic renal drug delivery catheter
US7329236B2 (en) 1999-01-11 2008-02-12 Flowmedica, Inc. Intra-aortic renal drug delivery catheter
US6749598B1 (en) 1999-01-11 2004-06-15 Flowmedica, Inc. Apparatus and methods for treating congestive heart disease
US7780628B1 (en) 1999-01-11 2010-08-24 Angiodynamics, Inc. Apparatus and methods for treating congestive heart disease
US6123659A (en) 1999-01-26 2000-09-26 Nimbus Inc. Blood pump with profiled outflow region
US6245007B1 (en) 1999-01-28 2001-06-12 Terumo Cardiovascular Systems Corporation Blood pump
GB2365347B (en) * 1999-02-09 2003-01-15 Vascor Inc Magnetically suspended fluid pump and control system
EP1034808A1 (en) 1999-03-09 2000-09-13 Paul Frederik Gründeman A device for transventricular mechanical circulatory support
US6295877B1 (en) 1999-03-30 2001-10-02 A-Med Systems, Inc. Pressure sensing cannula
EP1602386A1 (en) * 1999-04-23 2005-12-07 Ventrassist Pty Ltd A rotary blood pump and control system therefor
AUPP995999A0 (en) * 1999-04-23 1999-05-20 University Of Technology, Sydney Non-contact estimation and control system
US6234772B1 (en) * 1999-04-28 2001-05-22 Kriton Medical, Inc. Rotary blood pump
US20050165269A9 (en) 1999-06-18 2005-07-28 Aboul-Hosn Walid N. Cannulation system and related methods
US6190304B1 (en) 1999-07-13 2001-02-20 University Of North Texas Health Science Center At Fort Worth Enhanced intra-aortic balloon assist device
US6247892B1 (en) * 1999-07-26 2001-06-19 Impsa International Inc. Continuous flow rotary pump
US7022100B1 (en) 1999-09-03 2006-04-04 A-Med Systems, Inc. Guidable intravascular blood pump and related methods
US6227817B1 (en) * 1999-09-03 2001-05-08 Magnetic Moments, Llc Magnetically-suspended centrifugal blood pump
US6227820B1 (en) * 1999-10-05 2001-05-08 Robert Jarvik Axial force null position magnetic bearing and rotary blood pumps which use them
DE19947907A1 (de) 1999-10-06 2001-04-19 Thomas Wolffgram Katheter für die kombinierte Untersuchung des linken Ventrikels sowie der rechten und der linken Koronararterien
DE29921352U1 (de) * 1999-12-04 2001-04-12 Impella Cardiotech Ag Intravasale Blutpumpe
DE60006926T2 (de) 1999-12-27 2004-06-17 Terumo K.K. Flüssigkeitspumpe mit magnetisch aufgehängtem Laufrad
DE10016422B4 (de) 2000-04-01 2013-10-31 Impella Cardiosystems Ag Parakardiale Blutpumpe
US6547530B2 (en) 2000-05-19 2003-04-15 Ntn Corporation Fluid pump apparatus
US6527699B1 (en) * 2000-06-02 2003-03-04 Michael P. Goldowsky Magnetic suspension blood pump
US6589030B2 (en) 2000-06-20 2003-07-08 Ntn Corporation Magnetically levitated pump apparatus
DE10040403A1 (de) 2000-08-18 2002-02-28 Impella Cardiotech Ag Intrakardiale Blutpumpe
DE10042962C1 (de) * 2000-08-31 2002-05-02 Siemens Ag Magnetlager zur Lagerung einer drehbaren Welle unter Verwendung von Hoch-T¶c¶-Supraleitermaterial
DE10043151A1 (de) 2000-08-31 2002-03-28 Peter Steinruecke Knochenzement mit antimikrobieller Wirksamkeit
JP2002093120A (ja) 2000-09-12 2002-03-29 Toshiba Corp コンピュータ、コンピュータに於けるデジタルオーディオビデオデータの再生方法、及び記憶媒体
JP4685227B2 (ja) * 2000-10-30 2011-05-18 Ｎｔｎ株式会社 磁気浮上型ポンプ
US6626644B2 (en) 2000-10-30 2003-09-30 Ntn Corporation Magnetically levitated pump and controlling circuit
JP2002155891A (ja) * 2000-11-22 2002-05-31 Seiko Instruments Inc 真空ポンプ
DE10058669B4 (de) 2000-11-25 2004-05-06 Impella Cardiotechnik Ag Mikromotor
DE10059714C1 (de) 2000-12-01 2002-05-08 Impella Cardiotech Ag Intravasale Pumpe
DE10060275A1 (de) * 2000-12-05 2002-06-13 Impella Cardiotech Ag Verfahren zum Kalibrieren eines Drucksensors oder eines Flussensors an einer Rotationspumpe
AU2002250250A1 (en) 2001-03-01 2002-09-19 Three Arch Partners Intravascular device for treatment of hypertension
US6547519B2 (en) 2001-04-13 2003-04-15 Hewlett Packard Development Company, L.P. Blower impeller apparatus with pivotable blades
JP2002315824A (ja) * 2001-04-23 2002-10-29 National Institute Of Advanced Industrial & Technology 人工心臓用回転ポンプ
DE10123139B4 (de) 2001-04-30 2005-08-11 Berlin Heart Ag Verfahren zur Regelung einer Unterstützungspumpe für Fluidfördersysteme mit pulsatilem Druck
FR2824535B1 (fr) 2001-05-09 2003-09-26 Oreal Emballage pour presentation groupee d'au moins deux articles
US6517315B2 (en) * 2001-05-29 2003-02-11 Hewlett-Packard Company Enhanced performance fan with the use of winglets
US20020188167A1 (en) 2001-06-06 2002-12-12 Anthony Viole Multilumen catheter for minimizing limb ischemia
JP3834610B2 (ja) * 2001-07-12 2006-10-18 独立行政法人産業技術総合研究所 動圧軸受を備えた人工心臓ポンプ
US6623420B2 (en) 2001-08-16 2003-09-23 Apex Medical, Inc. Physiological heart pump control
JP2003067310A (ja) 2001-08-30 2003-03-07 Minolta Co Ltd メール送信のためのシステムとプログラム
TW561226B (en) * 2001-09-25 2003-11-11 Matsushita Electric Ind Co Ltd Ultra-thin pump and cooling system including the pump
US6692318B2 (en) 2001-10-26 2004-02-17 The Penn State Research Foundation Mixed flow pump
US6641378B2 (en) * 2001-11-13 2003-11-04 William D. Davis Pump with electrodynamically supported impeller
US6981942B2 (en) * 2001-11-19 2006-01-03 University Of Medicine And Dentristy Of New Jersey Temporary blood circulation assist device
DE10158146A1 (de) 2001-11-28 2003-06-18 Horn Gmbh & Co Kg Selbstansaugende Hybridpumpe
US20040029842A1 (en) 2001-12-18 2004-02-12 Gardner Wallace J. Triglyceride lowering, common cold and pneumonia prevention composition comprising tetracycline, and methods of treating or preventing diseases using same
AU2003202250A1 (en) * 2002-01-08 2003-07-24 Micromed Technology, Inc. Method and system for detecting ventricular collapse
JP4004296B2 (ja) 2002-01-28 2007-11-07 テルモ株式会社 遠心式液体ポンプ装置
US20050069426A1 (en) 2002-03-26 2005-03-31 Christopher Mason Devices for use in medicine
US7074016B1 (en) 2002-05-24 2006-07-11 Massachusetts Institute Of Technology Planar turbopump assembly
CN1206789C (zh) * 2002-05-31 2005-06-15 沈阳工业大学 轴向可控磁悬浮永磁盘式血泵电机
WO2003103745A2 (en) 2002-06-11 2003-12-18 Walid Aboul-Hosn Expandable blood pump and related methods
US20030231959A1 (en) 2002-06-12 2003-12-18 William Hackett Impeller assembly for centrifugal pumps
US7241257B1 (en) 2002-06-28 2007-07-10 Abbott Cardiovascular Systems, Inc. Devices and methods to perform minimally invasive surgeries
US6949066B2 (en) 2002-08-21 2005-09-27 World Heart Corporation Rotary blood pump diagnostics and cardiac output controller
EP1572007B1 (en) 2002-09-09 2011-12-28 Brian Kelleher Device for endoluminal therapy
US6817836B2 (en) 2002-09-10 2004-11-16 Miwatec Incorporated Methods and apparatus for controlling a continuous flow rotary blood pump
US7284956B2 (en) 2002-09-10 2007-10-23 Miwatec Co., Ltd. Methods and apparatus for controlling a continuous flow rotary blood pump
US7335215B2 (en) 2002-11-05 2008-02-26 Damage Control Surgical Technologies, Inc. Method and device for temporary emergency vessel anastomoses
US6860713B2 (en) * 2002-11-27 2005-03-01 Nidec Corporation Fan with collapsible blades, redundant fan system, and related method
JP2004219496A (ja) 2003-01-10 2004-08-05 Nikon Corp ホログラム光学素子の製造方法
JP2004236818A (ja) 2003-02-05 2004-08-26 Masao Osuga 鼻部に装着する個人用芳香器
JP4108054B2 (ja) * 2003-04-30 2008-06-25 三菱重工業株式会社 人工心臓ポンプ
US20040241019A1 (en) * 2003-05-28 2004-12-02 Michael Goldowsky Passive non-contacting smart bearing suspension for turbo blood-pumps
US7682301B2 (en) * 2003-09-18 2010-03-23 Thoratec Corporation Rotary blood pump
JP4408674B2 (ja) * 2003-09-29 2010-02-03 愛三工業株式会社 燃料ポンプ
US7037069B2 (en) 2003-10-31 2006-05-02 The Gorman-Rupp Co. Impeller and wear plate
DE102004001594B4 (de) 2004-01-09 2006-09-21 Bio-Gate Ag Wundauflage und Verfahren zu deren Herstellung
US7160243B2 (en) * 2004-03-25 2007-01-09 Terumo Corporation Method and system for controlling blood pump flow
US7172551B2 (en) 2004-04-12 2007-02-06 Scimed Life Systems, Inc. Cyclical pressure coronary assist pump
US20060058869A1 (en) * 2004-09-14 2006-03-16 Vascular Architects, Inc., A Delaware Corporation Coiled ladder stent
US7393181B2 (en) * 2004-09-17 2008-07-01 The Penn State Research Foundation Expandable impeller pump
DE102004054714A1 (de) 2004-11-12 2006-05-24 Impella Cardiosystems Gmbh Faltbare intravasal einführbare Blutpumpe
JP4442570B2 (ja) 2005-04-11 2010-03-31 セイコーエプソン株式会社 電気光学装置及びその製造方法、並びに電子機器
WO2007025353A1 (en) * 2005-09-02 2007-03-08 Martin Russell Harris A fluid transmission
EP3477103B1 (en) * 2006-01-13 2022-03-02 HeartWare, Inc. Rotary blood pump
EP3115070B8 (en) 2006-03-23 2019-05-08 The Penn State Research Foundation Heart assist device with expandable impeller pump
WO2008027869A2 (en) 2006-08-30 2008-03-06 Circulite, Inc. Devices, methods and systems for establishing supplemental blood flow in the circulatory system
EP2061531B1 (en) 2006-09-14 2016-04-13 CircuLite, Inc. Intravascular blood pump and catheter
DE102007012817A1 (de) * 2007-03-16 2008-09-18 Mwf Consult Ltd. Vorrichtung zur Unterstützung des Herzens und des Kreislaufs
US7828710B2 (en) 2007-06-05 2010-11-09 Medical Value Partners, Llc Apparatus comprising a drive cable for a medical device
CA2693223C (en) * 2007-07-19 2015-05-19 Circulite, Inc. Cannula for heart chamber implantation and related systems
US8439859B2 (en) 2007-10-08 2013-05-14 Ais Gmbh Aachen Innovative Solutions Catheter device
US8489190B2 (en) 2007-10-08 2013-07-16 Ais Gmbh Aachen Innovative Solutions Catheter device
US8209015B2 (en) * 2007-10-09 2012-06-26 Stealth Therapeutics, Inc. Enhanced stability implantable medical device
JP2009135455A (ja) 2007-10-29 2009-06-18 Semiconductor Energy Lab Co Ltd 単結晶半導体層の形成方法、結晶性半導体層の形成方法、多結晶半導体層の形成方法、及び、半導体装置の作製方法
JP4823295B2 (ja) 2008-11-21 2011-11-24 日本電信電話株式会社 センサノードチップおよびセンサノードシステム
US7993259B2 (en) 2009-01-23 2011-08-09 Wei-Chang Kang Percutaneous intra-aortic ventricular assist device
JP5815516B2 (ja) * 2009-07-01 2015-11-17 ザ・ペン・ステイト・リサーチ・ファウンデイションＴｈｅ Ｐｅｎｎ Ｓｔａｔｅ Ｒｅｓｅａｒｃｈ Ｆｏｕｎｄａｔｉｏｎ 拡張可能なカニューレを備える血液ポンプ

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103957958A (zh) * 2012-03-27 2014-07-30 株式会社太阳医疗技术研究所 辅助人工心脏泵
US9440012B2 (en) 2012-03-27 2016-09-13 Sun Medical Technology Research Corporation Ventricular assist blood pump
CN103191476A (zh) * 2012-08-03 2013-07-10 上海交通大学医学院附属上海儿童医学中心 一种单支点磁动力离心式血泵
CN107670135A (zh) * 2017-09-18 2018-02-09 上海交通大学医学院附属上海儿童医学中心 一种单支点磁动力驱动式离心泵及其驱动组件
CN108525039A (zh) * 2018-05-14 2018-09-14 苏州心擎医疗技术有限公司 泵装置
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CN110714926A (zh) * 2018-07-11 2020-01-21 同心医疗器械（美国）有限公司 具有磁悬浮叶轮的紧凑型离心泵
US10947986B2 (en) 2018-07-11 2021-03-16 Ch Biomedical (Usa) Inc. Compact centrifugal pump with magnetically suspended impeller
US11378090B2 (en) 2018-07-11 2022-07-05 Ch Biomedical (Usa) Inc. Compact centrifugal pump with magnetically suspended impeller
CN113167279A (zh) * 2018-12-04 2021-07-23 盖茨公司 轴向磁通马达水泵
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CN110464895A (zh) * 2019-06-26 2019-11-19 上海微创医疗器械（集团）有限公司 磁液悬浮式血泵
CN110464895B (zh) * 2019-06-26 2022-02-22 上海微创心力医疗科技有限公司 磁液悬浮式血泵

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