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    • 1. 发明授权
    • Centrifugal blood pump assembly
    • 离心血泵总成
    • US5947703A
    • 1999-09-07
    • US791560
    • 1997-01-31
    • Toshihiko NojiriTsugito NakazekiTeruaki Akamatsu
    • Toshihiko NojiriTsugito NakazekiTeruaki Akamatsu
    • A61M1/10F04D13/02F04D29/04F04D29/047F04D29/048F04D29/62F04B17/00B63H1/00F01D25/00F03B13/00
    • F04D29/047A61M1/101A61M1/1015A61M1/1036F04D13/026F04D13/027F04D13/0666F04D29/048F04D29/628F16C32/044F05B2240/515F16C2360/44Y10S415/90
    • A centrifugal blood pump assembly according to one aspect of the invention includes a housing, an impeller adapted to rotate within the housing for feeding blood, an impeller position control device, and an impeller rotation torque generating device. The impeller rotates without contacting the inner surface of the housing when the position control device and torque generating device are operative. Even when the position control device is inoperative, operation of the torque generating device enables rotation of the impeller while a blood flowpath is defined between the surface of the impeller facing the torque generating device and the inner surface of the housing. A centrifugal blood pump assembly according to another aspect of the invention involves a pump including a housing having blood inlet and outlet ports and an impeller adapted to rotate within the housing for feeding blood. The assembly also includes an uncontrolled magnetic bearing arrangement for the impeller, and controlled magnetic bearing arrangement for the impeller. The bearing arrangements are removably mounted to the pump.
    • 根据本发明的一个方面的离心式血液泵组件包括壳体,适于在壳体内旋转以供给血液的叶轮,叶轮位置控制装置和叶轮旋转扭矩产生装置。 当位置控制装置和扭矩产生装置可操作时,叶轮旋转而不接触壳体的内表面。 即使当位置控制装置不起作用时,扭矩产生装置的操作也能够在叶轮面向扭矩产生装置的表面与壳体的内表面之间限定血液流路的同时旋转叶轮。 根据本发明的另一方面的离心式血液泵组件涉及一种泵,其包括具有血液入口和出口端口的壳体,以及适于在壳体内旋转以供给血液的叶轮。 该组件还包括用于叶轮的不受控制的磁轴承装置和用于叶轮的受控磁轴承装置。 轴承装置可拆卸地安装在泵上。