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公开(公告)号:WO2009155229A1
公开(公告)日:2009-12-23
申请号:PCT/US2009/047320
申请日:2009-06-15
IPC分类号: F04B17/00
CPC分类号: F04D5/001 , A61M1/101 , A61M1/1015 , A61M1/1017 , A61M1/1036 , A61M1/122 , F04D29/048
摘要: The invention is directed to a multi-disk centrifugal pump suitable for pumping fluids, including biocompatible fluids, such as blood. The design of the pump components is optimized to reduce or eliminate the probability of clotting and hemolysis when pumping blood, and to be energy efficient and resistant to physical shock for portable applications.
摘要翻译: 本发明涉及一种适用于泵送流体的多盘式离心泵,包括生物相容性流体,如血液。 优化了泵组件的设计,以减少或消除泵送血液时凝血和溶血的可能性,并且对于便携式应用而言能量效率高并且抵抗物理冲击。
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公开(公告)号:WO2009010888A3
公开(公告)日:2009-11-19
申请号:PCT/IB2008003076
申请日:2008-04-21
申请人: JARVIK ROBERT
发明人: JARVIK ROBERT
IPC分类号: A61M1/00
CPC分类号: F04D13/0633 , A61M1/101 , A61M1/1013 , A61M1/1017 , A61M1/1031 , A61M1/122 , A61M1/125 , F04D3/00 , F04D29/0467 , F16C17/08 , F16C2316/18
摘要: Rotary hydrodynamic blood pumps have been used to treat over a thousand patients. The Jarvik 2000 has supported a patient for seven years and uses blood immersed bearings washed by high flow to avoid excessive thrombus formation. This permits the pump to be very simple and small. Nonetheless, the present Jarvik 2000 bearings and all other mechanical blood immersed bearings of the prior art have a supporting structure that predisposes to thrombus adjacent to the bearings. The present invention provides a bearing structure that eliminates this predilection site for thrombus formation, and may provide indefinite thrombus free operation. The rotor of the preferred embodiment includes a tapered hub fabricated of wear resistant material supported by three posts at each end of the rotor, upon which the rotor rotates. Blood washes the unobstructed spaces between the posts to prevent the accumulation of a torus of thrombus that could enlarge excessively.
摘要翻译: 旋转流体动力学血泵已被用于治疗一千多名患者。 Jarvik 2000支持了7年的患者,并使用高流量清洗的血液浸没的轴承,以避免血栓形成过多。 这样可以使泵非常简单和小型化。 尽管如此,现有的Jarvik 2000轴承和所有其他现有技术的机械血液浸入轴承具有易于与轴承相邻的血栓的支撑结构。 本发明提供了一种消除这种血栓形成倾向的轴承结构,并且可以提供无限制的无血栓操作。 优选实施例的转子包括由转子的每个端部处的三个支柱支撑的耐磨材料制成的锥形轮毂,转子在其上旋转。 血液清洗柱之间的无障碍空间,以防止可能过度放大的血栓环面积聚。
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公开(公告)号:WO2009120056A1
公开(公告)日:2009-10-01
申请号:PCT/MX2009/000029
申请日:2009-03-30
IPC分类号: A61M1/10
CPC分类号: A61M1/12 , A61M1/1008 , A61M1/101 , A61M1/1025 , A61M1/1037 , A61M1/106 , A61M1/1098 , A61M1/122 , Y10T29/49236 , Y10T29/49826
摘要: Una estructura de sello estático para un alojamiento de bomba incluye una estructura de soporte, un primer elemento de sellado, y un segundo elemento de sellado; la estructura de soporte circunscribe una cámara de bomba e incluye una primera superficie de sellado, una segunda superficie de sellado opuesta, y un extremo de transferencia de fluido interpuesto entre las superficies de sellado; la estructura de soporte proporciona una trayectoria de flujo de fluido que corre a través del extremo de transferencia de fluido y dentro de la cámara de bomba mediante un agujero de entrada y desde la cámara de bomba de regreso a través del extremo de transferencia de fluido mediante un agujero de salida; el primer elemento de sellado está colocado en la primera superficie de sellado, y el segundo elemento de sellado está colocado en la segunda superficie de sellado; los elementos de sellado están configurados para formar interfaces de sellado en el alojamiento de bomba, estableciendo un sello estático que aisla la cámara de bomba contra un ambiente exterior al alojamiento de bomba de fluido.
摘要翻译: 本发明涉及用于容纳泵的静态密封结构,包括支撑结构,第一密封元件和第二密封元件。 支撑结构包围泵室,并且包括第一密封表面,相对的第二密封表面和设置在所述密封表面之间的流体输送端。 支撑结构提供流体流动路径,其通过入口孔延伸穿过流体传递端进入泵室,并且通过出口孔从泵室返回到流体传送端。 第一密封元件位于第一密封表面上,第二密封元件位于第二密封表面上。 密封元件构造成在泵壳体中形成密封接口,从而形成静止的密封,其将泵室与流体泵壳体外的大气隔离。
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公开(公告)号:WO2009118410A1
公开(公告)日:2009-10-01
申请号:PCT/EP2009/053665
申请日:2009-03-27
CPC分类号: B01D17/0217 , A61M1/0076 , A61M1/10 , A61M1/1006 , A61M1/101 , A61M1/1082 , A61M1/1084 , A61M1/122 , A61M1/3693 , A61M2202/0427 , B01D21/0087 , B01D21/009 , B01D2221/10
摘要: The invention relates to a separation channel for separating a fluid flowing through into two or more components, which separation channel comprises: - two parallel walls, each wall having a groove structure, in which the grooves extend at an angle of more than 0° and less than 90° to the direction of flow; and - a groove outlet, into which the grooves open for carrying off one of the two components separately.
摘要翻译: 本发明涉及一种用于将流过流体分离成两个或多个部件的分离通道,该分离通道包括: - 两个平行的壁,每个壁具有凹槽结构,其中凹槽以大于0°的角度延伸, 小于流动方向90°; 以及 - 凹槽出口,凹槽打开以分开地分离两个部件中的一个。
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公开(公告)号:WO2009104451A1
公开(公告)日:2009-08-27
申请号:PCT/JP2009/050978
申请日:2009-01-22
IPC分类号: F04D13/02 , A61M1/10 , F04D29/047 , F04D29/048
CPC分类号: F04D29/047 , A61M1/10 , A61M1/101 , A61M1/1015 , A61M1/1017 , A61M1/1036 , F04D13/026 , F04D29/048
摘要: ケーシング(12)内部の回転体(11)に設けられた永久磁石の従動磁石(11B3)、およびケーシングの外部で回転体の径方向に従動磁石と対向配置されて従動磁石と磁気結合する永久磁石の駆動磁石(23A)から成る軸方向軸受である磁気カップリングと、駆動磁石を回転体の軸線(P)を中心に回転駆動する駆動モータ(22)と、ケーシングの内壁および回転体に軸線を中心とした円環状の軸受面(12B1,11B1)が設けられ、各軸受面が駆動磁石と従動磁石との間で回転体の径方向に隙間を有して配置された動圧軸受の径方向軸受と、回転体における軸線方向前側に設けられた前シュラウド(11A1)、前シュラウドの軸線方向後側に設けられた後シュラウド(11A2)、および前シュラウドと後シュラウドとの間に設けられた羽根(11A3)を有するクローズド羽根車(11A)とを備える。
摘要翻译: 具有磁耦合器,驱动马达(22),径向轴承和封闭叶轮(11A)的血泵。 磁耦合是轴向轴承,由作为永久磁铁的从动磁铁(11B3)和安装在壳体(12)的旋转体(11)上的驱动磁体(23A)和永磁体 并且以与驱动磁体磁耦合的方式位于壳体外部,以便与旋转体的径向方向上的从动磁体相对。 驱动电机(22)围绕旋转体的轴线(P)旋转驱动驱动磁体。 径向轴承是动压轴承,并且具有以壳体的内壁和旋转体的轴线为中心的环形支承面(12B1,11B1),其位于驱动磁体和从动磁体之间,其间具有间隙 旋转体的径向。 封闭叶轮(11A)具有设置在旋转体的轴线方向的前侧的前罩(11A1),设置在前罩的后轴侧的后罩(11A2)和叶片 11A3)设置在前护罩和后护罩之间。
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公开(公告)号:WO2008113785A3
公开(公告)日:2009-01-08
申请号:PCT/EP2008053164
申请日:2008-03-17
申请人: MWF CONSULT LTD , FERRARI MARKUS
发明人: FERRARI MARKUS
CPC分类号: A61M1/3666 , A61M1/1008 , A61M1/101 , A61M1/1037 , A61M1/106 , A61M1/1072 , A61M1/1086 , A61M1/1096 , A61M1/122 , A61M1/125 , A61M1/3667
摘要: The present invention relates to a device (1) for circulating a body fluid in a body of a living being, particularly for supporting the heart and/or the circulatory system of the living being, comprising a catheter device, which has at least one inlet section (3; 16) for receiving the body fluid on at least one first location inside the body of the living being, at least one outlet section (8, 12, 13; 15) disposed at a distance from the at least one inlet section (3; 16) for discharging the body fluid in at least one second location inside the body of the living being, the second location being disposed at distance from the at least one first location, and a pump device (5) for the directed transport of the body fluid between the at least one inlet section (3; 16) and the at least one outlet section (8, 12, 13; 15) of the catheter device. It further comprises a valve arrangement (4, 8, 12, 13; 16) coupled to the catheter device for receiving the body fluid on the at least one inlet section (3; 16) of the catheter device and for the controlled discharge of the body fluid on the at least one outlet section (8, 12, 13; 15) of the catheter device as a function of the operation of the pump device (5).
摘要翻译: 本发明涉及一种装置(1)用于循环体液在活的主体,特别是用于辅助心脏和/或受试者的循环,与具有至少一个入口部分的导管装置(3; 16),用于接收体液 (16 3)间隔开的出口部分(8,12,13; 15)至少被检体的体,所述至少一个入口部分中的至少一个内的第一位置处用于排出体液在至少的所述至少一个第二间隔开的第一位置位点内 具有活体的主体和一泵装置(5)的导管组件,用于所述至少一个入口部分(3 ;; 16)和所述至少一个出口部分(15 8,12,13)之间的本体流体的定向转运; 和装置,耦合到所述导管装置的阀组件(4,8,12,13; 16)控制为(5)接收所述体液到所述至少一个入口部分(3; 16)的泵装置的操作的功能的导管装置的和控制的体液的排出 导管装置的;所述至少一个出口(15 8,12,13)。
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公开(公告)号:WO2008152425A1
公开(公告)日:2008-12-18
申请号:PCT/GB2008/050439
申请日:2008-06-12
发明人: FOSTER, Graham , FERNQUEST, Kevin
IPC分类号: A61M1/10
CPC分类号: A61M1/1031 , A61M1/101 , A61M1/1012 , A61M1/1015 , A61M1/1017 , A61M1/122 , A61M1/125
摘要: The pump is of an axial flow rotary type suitable for implantation into the human heart or vascular system. The pump has an elongate tubular casing (1) including an electric motor (4) and defining an inlet (2) for blood, an outlet (3) for blood longitudinally spaced from theinlet and a substantially axial blood flow path (8) from the inlet to the outlet. An elongate rotatable element (7) is arranged to fit within the casing with spacing (15) between an outer surface of the rotatable element and an inner surface of the casing; the rotatable element comprises an electric motor rotor portion (10) arranged to be driven by the electric motor stator and a primary substantially axial blood flow path along the inside of the rotatable element. A rotary impeller (11) is provided axially spaced from the rotor portion for impelling blood along the primary flow path.
摘要翻译: 该泵具有适于植入人心脏或血管系统的轴流式旋转式。 泵具有细长的管状壳体(1),其包括电动马达(4)并且限定血液入口(2),用于血液与所述塞子纵向间隔开的血液出口(3)和基本上轴向的血流通道 入口到出口。 细长可旋转元件(7)布置成在可旋转元件的外表面和壳体的内表面之间具有间隔(15)装配在壳体内; 所述可旋转元件包括电动机转子部分(10),所述电动机转子部分(10)被布置成由所述电动机定子驱动并且沿着所述可旋转元件的内部具有主要的基本上轴向的血流路径。 旋转叶轮(11)设置成与转子部分轴向间隔开,以沿着主流动路径促使血液流动。
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公开(公告)号:WO2008151236A2
公开(公告)日:2008-12-11
申请号:PCT/US2008/065779
申请日:2008-06-04
CPC分类号: A61M1/1034 , A61M1/101 , A61M1/1082 , A61M1/1084 , A61M1/122 , A61M1/125
摘要: An article comprising a drive cable suitable for high-speed operation in an anatomy having small-radii bends is disclosed. The drive cables disclosed herein include one or more physical adaptations that enable them to be "tuned" to avoid large amplitude vibrations during operation.
摘要翻译: 公开了一种包括适合于具有小半径弯曲的解剖结构中的高速操作的驱动电缆的物品。 本文公开的驱动电缆包括一个或多个物理适配,使得它们能够被“调谐”以避免操作期间的大振幅。
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公开(公告)号:WO2008116765A2
公开(公告)日:2008-10-02
申请号:PCT/EP2008053096
申请日:2008-03-14
发明人: SIESS THORSTEN
IPC分类号: A61M1/10
CPC分类号: F04D13/064 , A61M1/101 , A61M1/1013 , A61M1/1031 , A61M1/1082 , A61M1/1084 , A61M1/122 , A61M1/125 , F04D3/00 , F04D13/0626
摘要: The invention relates to a micromotor (10), the stator of which contains a back iron jacket (18). Said back iron jacket consists of a continuous unslotted sleeve consisting of a metal alloy that contains ferritic iron as the main constituent, up to 30% chromium and preferably aluminium and yttrium oxide. Electric conductivity is reduced by the oxidation of the aluminium. The yttrium oxide performs the same function. The reduced electric conductivity suppresses eddy currents to a great extent. The back iron jacket (18) has a high magnetic conductivity with a small wall thickness, thus increasing the electrical output for a motor with a small diameter.
摘要翻译: 血泵包括微电机(10),所述定子包括磁性回流护套(18)。 包封磁通返回结构由包含作为主要成分的铁素体铁的金属合金的连续非开槽套筒和高达30%的铬和优选铝和钇。 电导率是由铝的氧化减少。 类似的功能有氧化钇。 由于涡流引起的降低的导电性被大大地抑制。 回流护套(18)具有低的壁厚的高磁导率,并由此增加在电机的小直径的电功率。
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公开(公告)号:WO2008106103A2
公开(公告)日:2008-09-04
申请号:PCT/US2008002484
申请日:2008-02-26
申请人: HEARTWARE INC
发明人: LAROSE JEFFREY A , SHAMBAUCH CHARLES R JR , WHITE DANIEL G , MARQUIS RICHARD A , WHITE STEVEN A , TRICHI KARTIKEYAN
IPC分类号: A61F2/24
CPC分类号: A61M1/101 , A61M1/1008 , A61M1/1017 , A61M1/1031 , A61M1/1036 , A61M1/122 , A61M1/125 , A61M2205/0211 , A61M2205/0272 , A61M2205/8206 , A61M2210/127
摘要: One aspect of an intravascular ventricular assist device is an implantable blood pump where the pump includes a housing defining a bore having an axis, one or more rotors disposed within the bore, each rotor including a plurality of magnetic poles, and one or more stators surrounding the bore for providing a magnetic field within the bore to induce rotation of each of the one or more rotors. Another aspect of the invention includes methods of providing cardiac assistance to a mammalian subject as, for example, a human. Further aspects of the invention include rotor bodies having helical channels formed longitudinally along the length of the body of the rotor where each helical channel is formed between peripheral support surface areas facing radially outwardly and extending generally in circumferential directions around the rotational axis of the rotor.
摘要翻译: 血管内心室辅助装置的一个方面是植入式血泵,其中泵包括限定具有轴线的孔的壳体,设置在孔内的一个或多个转子,每个转子包括多个磁极,以及一个或多个定子周围 所述孔用于在所述孔内提供磁场以引起所述一个或多个转子中的每一个的旋转。 本发明的另一方面包括向例如人的哺乳动物对象提供心脏辅助的方法。 本发明的其他方面包括具有沿转子本体的长度方向纵向形成的螺旋形通道的转子本体,其中每个螺旋形通道形成在周向支撑表面区域之间,所述周边支撑表面区域面向径向外部并且大致在围绕转子的旋转轴线的圆周方向上延伸。
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