公开(公告)号：EP0663215A1

公开(公告)日：1995-07-19

申请号：EP95300195.5

申请日：1995-01-12

申请人： ARROW INTERNATIONAL INVESTMENT CORPORATION

发明人： Lewis, Jeffrey P. ,  Frank, Daniel J. ,  Newswanger, Ray K.

IPC分类号： A61M1/10

CPC分类号： A61M1/1062 ,  A61M1/106 ,  A61M1/107 ,  A61M1/1072 ,  A61M1/1086 ,  A61M1/125 ,  A61M2025/1022 ,  A61M2205/33 ,  A61M2205/3303 ,  A61M2230/04 ,  A61M2230/005

摘要： A balloon pump (10) for a circulatory assist device (118) comprises a pumping chamber (20) of variable volume in which a diaphragm assembly (24) is displaceable between first and second pumping directions to inflate and deflate the balloon (120). The diaphragm assembly comprises a diaphragm (26) sandwiched between a pusher plate (28) and a retainer plate (30), the pusher plate and retainer plate being affixed to an elongate shaft (60) having an external threaded portion disposed in a planetary roller nut (66). A rotor assembly (96) is affixed to the roller nut (66) and a stator assembly (112) is disposed outwardly of the rotor assembly to impart bidirectional rotation to the roller nut to cause the shaft (60) and diaphragm assembly (24) to move in the first and second pumping directions, the pump (10) communicating with a pump control unit (124) and micro-processor (126) for controlling pump operation.

摘要翻译： 用于循环辅助装置（118）的球囊泵（10）包括可变容积的泵送室（20），其中隔膜组件（24）可在第一和第二抽吸方向之间移位，以使气囊（120）膨胀和放气。 隔膜组件包括夹在推板（28）和保持板（30）之间的隔膜（26），推板和保持板固定到细长轴（60）上，该细长轴具有设置在行星辊 螺母（66）。 转子组件（96）固定到滚子螺母（66）上并且定子组件（112）设置在转子组件的外侧，以向滚子螺母施加双向旋转以使轴（60）和隔膜组件（24） 在第一和第二泵送方向上移动，泵（10）与用于控制泵操作的泵控制单元（124）和微处理器（126）通信。