公开(公告)号：US20070078293A1

公开(公告)日：2007-04-05

申请号：US11243722

申请日：2005-10-05

Applicant: Charles Shambaugh ,  Kartikeyan Trichi ,  Jeffrey LaRose

Inventor： Charles Shambaugh ,  Kartikeyan Trichi ,  Jeffrey LaRose

IPC: A61M1/12

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07160242B2

公开(公告)日：2007-01-09

申请号：US10671543

申请日：2003-09-29

Applicant: Masamichi Yanai

Inventor： Masamichi Yanai

IPC: A61N1/362 ,  A61M1/10

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：US20050287022A1

公开(公告)日：2005-12-29

申请号：US11087851

申请日：2005-03-24

Applicant: Mitsutoshi Yaegashi ,  Takehiko Asada ,  Takehisa Mori ,  Takayoshi Ozaki ,  Kenichi Suzuki

Inventor： Mitsutoshi Yaegashi ,  Takehiko Asada ,  Takehisa Mori ,  Takayoshi Ozaki ,  Kenichi Suzuki

IPC: A61M1/10 ,  F04B17/00 ,  F04B35/04 ,  F04D15/00 ,  F04D29/04 ,  F04D29/047

CPC classification number: F04D29/047 ,  A61M1/101 ,  A61M1/1012 ,  A61M1/1013 ,  A61M1/1015 ,  A61M1/1017 ,  A61M1/1031 ,  A61M1/1036 ,  A61M1/122 ,  F04D13/027 ,  F04D13/0666 ,  F04D15/0088

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20050095151A1

公开(公告)日：2005-05-05

申请号：US10937109

申请日：2004-09-09

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, hydrostatic, and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. These design features may be combined. In one embodiment, a pump housing has a spindle extending from a wall of the pump housing into a pumping chamber defined by the pump housing. The spindle has a stepped portion adjacent the wall. In one embodiment, the stepped portion is defined by a change in spindle diameter. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood.

Abstract translation: 提供了用于旋转泵的各种“非接触”轴承机构，包括流体动力学，静液压和磁性轴承，作为机械接触轴承的替代品。 这些设计特征可以组合。 在一个实施例中，泵壳体具有从泵壳体的壁延伸到由泵壳体限定的泵送室中的心轴。 主轴具有邻近壁的台阶部分。 在一个实施例中，阶梯部分由主轴直径的变化限定。 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：US06824358B2

公开(公告)日：2004-11-30

申请号：US10294478

申请日：2002-11-13

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

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

IPC: F01D102

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.

Abstract translation: 具有小尺寸的涡轮血泵，即少量待注射的血液，并且能够调节和保持微量的流量;以及即使使用溶血也不可能发生溶血的涡轮血泵 在实际高转速下获得预定的排放能力。 所使用的涡轮血泵包括具有入口和出口的壳体; 以及可旋转地设置在所述壳体中的叶轮; 其中所述叶轮至少包括旋转轴和连接有所述多个叶片的环形连接部。 制造叶片使得入口侧部分相对于出口侧部分处于歪斜位置。

公开(公告)号：US06722863B2

公开(公告)日：2004-04-20

申请号：US09952240

申请日：2001-09-10

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

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

IPC: F04B1700

CPC classification number: F04D13/027 ,  A61M1/10 ,  A61M1/101 ,  A61M1/1013 ,  A61M1/1036 ,  F04D13/026

Abstract: A turbo blood pump includes a housing 1 having a pump chamber 2, an inlet port 3, and an outlet port 4, an impeller 5 disposed rotatably in the pump chamber, an upper bearing 9 and a lower bearing 10 supporting the impeller rotatably, and a driving force transmitting unit for driving the impeller to rotate. The upper bearing is supported at a position in the pump chamber below the inlet port, so that a cross-sectional area of the pump chamber in a plane including an upper end of the upper bearing and being orthogonal to a shaft of the impeller is larger than a cross-sectional area of a flow path of the inlet port at a portion where the inlet port is coupled to the pump chamber, and thus obstruction with respect to blood flow by the upper bearing is of such a degree as to be permissible from a practical viewpoint, while an impeller is supported by upper and lower bearings. Thereby, the pump is less likely to cause problems of blood stagnation and thrombus formation.

Abstract translation: 涡轮血泵包括具有泵室2，入口3和出口4的壳体1，可旋转地设置在泵室中的叶轮5，可旋转地支撑叶轮的上轴承9和下轴承10，以及 用于驱动叶轮旋转的驱动力传递单元。 上轴承支撑在泵室的入口下方的位置处，使得泵室在包括上轴承的上端并且与叶轮的轴正交的平面中的横截面面积较大 比入口端口联接到泵室的部分处的入口的流动通道的横截面面积大，因此相对于上轴承的血液流动阻塞的程度可以允许从 一个实用的观点，而叶轮由上下轴承支撑。 因此，泵不太可能引起血液滞留和血栓形成的问题。

公开(公告)号：US20030233021A1

公开(公告)日：2003-12-18

申请号：US10171094

申请日：2002-06-12

Applicant: Miwatec Incorporated ,  Baylor College of Medicine

Inventor： Yukihiko Nose ,  Seiji Ichikawa ,  Toshiyuki Shinohara

IPC: A61M001/00

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：US20030147754A1

公开(公告)日：2003-08-07

申请号：US10220357

申请日：2003-01-17

Inventor： Sebastian Schulte Eistrup ,  Catrin Bludszuweit

IPC: F04B049/00

CPC classification number: F04D29/048 ,  A61M1/101 ,  A61M1/1012 ,  A61M1/1013 ,  A61M1/1015 ,  A61M1/1022 ,  A61M1/1036 ,  A61M1/122 ,  A61M1/3663 ,  F04D3/00 ,  F04D13/0633 ,  F04D29/0467 ,  Y10S415/90

Abstract: The invention concerns a blood pump, in particular a ventricular cardiac support pump, with formed in a pump housing a blood chamber which is designed to hold a rotor rotatable about a rotor axis and at opposite ends in sections forms an inlet connectable with an inlet cannula, where an outlet from the blood chamber connectable with an outlet cannula extends in a direction perpendicular to the rotor axis, and where the rotor axis at its ends is mounted rotatably in mechanically active bearings provided in the area of the inlet concerned and connected with the pump housing.

Abstract translation: 本发明涉及一种血泵，特别是心室心脏支持泵，其形成在容纳血液室的泵中，该血液腔被设计成保持可围绕转子轴线旋转的转子，并且在相对端部分形成可与入口套管连接的入口 其中来自与出口套管连接的血液室的出口沿垂直于转子轴线的方向延伸，并且其端部处的转子轴线可旋转地安装在设置在相关入口区域中的机械活动轴承中，并且与 泵壳。

公开(公告)号：US20030105420A1

公开(公告)日：2003-06-05

申请号：US10016356

申请日：2001-12-05

Applicant: Spin Corporation

Inventor： Lloyd Hubbard ,  Earl Clausen

IPC: A61M037/00 ,  F04B049/00

CPC classification number: F04D13/14 ,  A61M1/10 ,  A61M1/101 ,  A61M1/1013 ,  A61M1/1036 ,  A61M1/3666 ,  Y10S415/90

Abstract: A two-chambered centrifugal blood pump for pumping biological fluids such as blood. One chamber is for pumping blood through the natural lungs, and a second chamber is for pumping blood through the remainder of the body. Each chamber has it's own inlet and outlet ports for attachment of tubing and cannulae. A small, adjustable clamp may alternatively be provided if minor adjustments of pressure to both the pulmonary and systemic circuits is required.

Abstract translation: 一种用于泵送生物液体如血液的双腔离心血泵。 一个室用于通过天然肺部抽血，第二个室用于通过身体的其余部分抽血。 每个腔室都有自己的入口和出口，用于连接管道和套管。 如果需要对肺和系统回路的压力进行微调，则可以提供小的可调节的夹具。

公开(公告)号：US06454999B1

公开(公告)日：2002-09-24

申请号：US09430244

申请日：1999-10-29

Applicant: Mehrdad Farhangnia ,  Alex Leynov ,  Joseph Loeffler ,  Alec A. Piplani ,  Greg Potts ,  Christian Skieller

Inventor： Mehrdad Farhangnia ,  Alex Leynov ,  Joseph Loeffler ,  Alec A. Piplani ,  Greg Potts ,  Christian Skieller

IPC: A61M114

CPC classification number: F28F21/062 ,  A61M1/1006 ,  A61M1/101 ,  A61M1/1013 ,  A61M1/1025 ,  A61M1/1036 ,  A61M1/1625 ,  A61M1/1629 ,  A61M1/1698 ,  A61M1/262 ,  A61M1/267 ,  A61M2205/366 ,  Y10S261/28

Abstract: An integrated blood pump/oxygenator having a rotating hollow fiber bundle assembly that both oxygenates and pumps blood is provided that includes a plurality of partitions disposed within or about the fiber bundle assembly to lengthen the flow path of blood passing through the fiber bundle. Alternatively, or in addition, blood flow paths may be lengthened and oxygenation improved by providing internal recirculation paths within the pump/oxygenator, which also advantageously may be used to reduce blood trauma caused by stagnation nearing moving parts and heat build-up.

Abstract translation: 提供了一种具有旋转的中空纤维束组合的集成血液泵/充氧器，其包含含氧化物和泵血液，其包括设置在纤维束组件内或周围的多个隔板，以延长通过纤维束的血液的流动路径。 或者或另外，可以通过在泵/氧合器内提供内部再循环路径来延长血液流动路径并且改善氧合作用，其也可有利地用于减少由运动部件附近的滞留引起的血液创伤和积热。