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1. 发明公开

KR1020000057569A 회전식 혈액펌프 无效
标题翻译：旋转血液泵
公开(公告)号：KR1020000057569A
公开(公告)日：2000-09-25
申请号：KR1019997005319
申请日：1997-02-04
申请人： 마이크롬드 테크놀러지 인코포레이티드 , 유나이티드 스테이츠 가번먼트 에즈 리프리젠티드 바이 디 어드미니스트레이션 오브 내셔널 에어로노틱스 앤드 스페이스 어드미니스트레이션
发明人： 벤코우스키,로버트,제이 , 키리스,쎄틴 , 곽,도찬 , 로젠바움,버나드,제이 , 바칵,제임스,더블유 , 드베이키,마이클,이
IPC分类号： A61M1/10
CPC分类号： A61M1/10 , A61M1/1008 , A61M1/101 , A61M1/1012 , A61M1/1013 , A61M1/1031 , A61M1/122 , F16C17/08 , Y10S415/90
摘要： PURPOSE: An axial-flop rotary blood pump is provided, which can be implanted into the chest of a human and can be used to assist a human heart in pumping blood. CONSTITUTION: A blood pump comprises a pump housing having a blood flow path therethrough, a blood inlet, and a blood outlet; a stator mounted to the pump housing, the stator having a stator field winding for producing a stator magnetic field; a flow straightener located within the pump housing, and comprising a flow straightener hub and at least one flow straightener blade attached to the flow straightener hub; a rotor mounted within the pump housing for rotation in response to the stator magnetic field, the rotor comprising an inducer and an impeller; the inducer being located downstream of the flow straightener, and comprising an inducer hub and at least one inducer blade attached to the inducer hub; the impeller being located downstream of the inducer, and comprising an impeller hub and at least one impeller blade attached to the impeller hub; and preferably also comprising a diffuser downstream of the impeller, the diffuser comprising a diffuser hub and at least one diffuser blade. Blood flow stagnation and clot formation within the pump are minimized by, among other things, providing the inducer hub with a diameter greater than the diameter of the flow straightener hub; by optimizing the axial spacing between the flow straightener hub and the inducer hub, and between the impeller hub and the diffuser hub; by optimizing the inlet angle of the diffuser blades; and by providing fillets or curved transitions between the upstream end of the inducer hub and the shaft mounted therein, and between the impeller hub and the shaft mounted therein.
摘要翻译：目的：提供一种可以植入人体胸部的轴向旋转式血泵，可用于协助人心脏抽血。构成：血泵包括具有穿过其中的血流通道的泵壳体，血液入口和血液出口; 定子，其安装到所述泵壳体，所述定子具有用于产生定子磁场的定子励磁绕组; 位于泵壳体内的流动矫直机，包括流动矫直器轮毂和连接到流动矫直器轮毂的至少一个流动矫直器刀片; 安装在所述泵壳体内用于响应于所述定子磁场旋转的转子，所述转子包括导流器和叶轮; 所述导流器位于所述流动矫直机的下游，并且包括导流器毂和附接到所述导流器毂的至少一个导流器叶片; 所述叶轮位于所述导流器的下游，并且包括叶轮毂和附接到所述叶轮毂的至少一个叶轮叶片; 并且优选地还包括在叶轮下游的扩散器，扩散器包括扩散器毂和至少一个扩散器叶片。除了别的以外，通过提供具有大于流动矫正器轮毂的直径的直径的引导器毂，使泵内的血流停滞和凝块形成最小化; 通过优化流动矫直轮毂和导流轮毂之间以及叶轮毂与扩散器毂之间的轴向间距; 通过优化扩散器叶片的入口角度; 并且通过在导流器毂的上游端和安装在其中的轴之间以及在叶轮毂和安装在其中的轴之间提供圆角或弯曲过渡。

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