公开(公告)号：US20020094281A1

公开(公告)日：2002-07-18

申请号：US09968690

申请日：2001-10-01

发明人： Pratap S. Khanwilkar ,  Paul E. Allaire ,  Gill B. Bearnson ,  Don B. Olsen ,  Eric H. Maslen ,  James W. Long

IPC分类号： F04B017/00

CPC分类号： F04D29/048 ,  A61M1/101 ,  A61M1/1012 ,  A61M1/1015 ,  A61M1/1025 ,  A61M1/1031 ,  A61M1/1086 ,  A61M1/122 ,  F04D13/0666 ,  F05B2200/23 ,  F05B2240/51 ,  F05B2240/511 ,  F05B2240/515 ,  F16C32/044 ,  F16C2316/18 ,  Y10S415/90

摘要： An apparatus and method for a centrifugal fluid pump for pumping sensitive biological fluids, which includes (i) an integral impeller and rotor which is entirely supported by an integral combination of permanent magnets and electromagnetic bearings and rotated by an integral motor, (ii) a pump housing and arcuate passages for fluid flow and containment, (iii) a brushless driving motor embedded and integral with the pump housing, (iv) a power supply, and (v) specific electronic sensing of impeller position, velocity or acceleration using a self-sensing method and physiological control algorithm for motor speed and pump performance based upon input from the electromagnetic bearing currents and motor back emfnullall fitly joined together to provide efficient, durable and low maintenance pump operation. A specially designed impeller and pump housing provide the mechanism for transport and delivery of fluid through the pump to a pump output port with reduced fluid turbulence.

摘要翻译： 一种用于泵送敏感生物流体的离心流体泵的装置和方法，其包括（i）整体叶轮和转子，其完全由永磁体和电磁轴承的一体组合支撑并由一体电动机旋转，（ii） 泵壳体和用于流体流动和容纳的弓形通道，（iii）嵌入并与泵壳体一体化的无刷驱动电机，（iv）电源，以及（v）使用自身的叶轮位置，速度或加速度的特定电子感测 基于电磁轴承电流和电机背面电机输入的电机转速和泵性能的传感方法和生理控制算法，均配合在一起，提供高效，耐用和低维护的泵运行。 特别设计的叶轮和泵壳体提供了通过泵将流体输送和输送到具有减少的流体湍流的泵输出端口的机构。

公开(公告)号：US6074180A

公开(公告)日：2000-06-13

申请号：US850598

申请日：1997-05-02

申请人： Pratap S. Khanwilkar ,  Paul E. Allaire ,  Gill Brent Bearnson ,  Don B. Olsen ,  Eric H. Maslen ,  James W. Long

发明人： Pratap S. Khanwilkar ,  Paul E. Allaire ,  Gill Brent Bearnson ,  Don B. Olsen ,  Eric H. Maslen ,  James W. Long

IPC分类号： A61M1/10 ,  F03B13/00 ,  F04B15/00 ,  F04B17/00 ,  F04B35/04 ,  F04B49/06 ,  F04D7/00 ,  F04D13/06 ,  F04D15/00 ,  F04D29/04 ,  F04D29/048

CPC分类号： F04D29/048 ,  A61M1/101 ,  A61M1/1015 ,  A61M1/1031 ,  F04D13/0666 ,  F16C32/044 ,  F05B2200/23 ,  F05B2240/51 ,  F05B2240/511 ,  F05B2240/515 ,  Y10S415/90

摘要： An apparatus and method for a centrifugal fluid pump for pumping sensitive biological fluids, which includes (i) an integral impeller and rotor which is entirely supported by an integral combination of permanent magnets and electromagnetic bearings and rotated by an integral motor, (ii) a pump housing and arcuate passages for fluid flow and containment, (iii) a brushless driving motor embedded and integral with the pump housing, (iv) a power supply, and (v) specific electronic sensing of impeller position, velocity or acceleration using a self-sensing method and physiological control algorithm for motor speed and pump performance based upon input from the electromagnetic bearing currents and motor back emf--all fitly joined together to provide efficient, durable and low maintenance pump operation. A specially designed impeller and pump housing provide the mechanism for transport and delivery of fluid through the pump to a pump output port with reduced fluid turbulence.