Magnetically Suspended Centrifugal Blood Pump with a Self Bearing Motor
Magnetically Suspended Centrifugal Blood Pump with a Self Bearing Motor
复制标题
带自轴承电机的磁悬浮离心血泵
DOI：
--
复制
发表时间：
2002
期刊：
影响因子：
--
通讯作者：
Y. Okada
中科院分区：
文献类型：
--
作者：
T. Masuzawa;H. Onuma;Seung;Y. Okada
研制了一种带自承电机的磁悬浮离心式血泵，用于长期的脑室辅助。该自轴承电机的转子在无机械轴承的情况下受到电磁场的主动悬浮和旋转。在薄转子结构中，主动控制转子的径向位置，被动稳定转子的轴向位置。对开式叶轮和半开式叶轮进行了对比分析，确定了最佳叶轮结构。叶轮外径为63 mm，高度为34 mm。两个叶轮都显示出相似的泵性能。为了验证双蜗壳的性能，还对单蜗壳和双蜗壳结构进行了试验。双蜗壳的悬浮功率和径向位移功率分别为0.7W和0.04 mm，而单蜗壳分别为1.3W和0.07 mm。对自承力电机定子进行了重新设计，避免了磁饱和现象，提高了电机性能。最大流量为9 L/分钟，最大压头为250 mm Hg。研制的磁悬浮离心式血泵是一种可植入的左心辅助装置。
A magnetically suspended centrifugal blood pump with a self bearing motor has been developed for long-term ventricular assistance. A rotor of the self bearing motor is actively suspended and rotated by an electromagnetic field without mechanical bearings. Radial position of the rotor is controlled actively, and axial position of the rotor is passively stable within the thin rotor structure. An open impeller and a semi-opened impeller were examined to determine the best impeller structure. The outer diameter and height of the impeller are 63 and 34 mm, respectively. Both the impellers indicated similar pump performance. Single volute and double volute structures were also tested to confirm the performance of the double volute. Power consumption for levitation and radial displacement of the impeller with a rotational speed of 1,500 rpm were 0.7 W and 0.04 mm in the double volute, while those in the single volute were 1.3 W and 0.07 mm, respectively. The stator of the self bearing motor was redesigned to avoid magnetic saturation and improve motor performance. Maximum flow rate and pressure head were 9 L/min and 250 mm Hg, respectively. The developed magnetically suspended centrifugal blood pump is a candidate for an implantable left ventricular assist device.
连续流心室辅助装置的性能：磁力轴承设计、构造和测试。
影响因子：
2.4
作者：
Allaire,P;Hilton,E;Baloh,M;Maslen,E;Bearnson,G;Noh,D;Khanwilkar,P;Olsen,D
通讯作者：
Olsen,D