Integrated blood oxygenator and pump system having means for reducing fiber breakage
    56.
    发明授权
    Integrated blood oxygenator and pump system having means for reducing fiber breakage 失效
    综合血氧饱和器和泵系统具有减少纤维断裂的手段

    公开(公告)号:US06224829B1

    公开(公告)日:2001-05-01

    申请号:US09223423

    申请日:1998-12-30

    IPC分类号: A61M114

    摘要: Improvements to integrated blood pump/oxygenator having a rotating hollow fiber bundle assembly that both oxygenates and pumps blood are provided. A plurality of vanes arranged along a central shaft of the device increase pressure near the center of the fiber bundle to prevent microbubble generation and blood trauma. Shearing loads imposed on the fiber elements of the fiber bundle are reduced by the addition of a reinforcement structure, while the gas flow path is configured to minimize flooding and loss of oxygenation efficiency due to occasional rupture of fiber elements. Blood trauma may be further reduced by contouring the vanes and other components of the device.

    摘要翻译: 具有提供含氧化合物和泵血液的旋转中空纤维束组件的集成血液泵/充氧器的改进。 沿着装置的中心轴布置的多个叶片增加了纤维束中心附近的压力,以防止微泡产生和血液创伤。 施加在纤维束的纤维元件上的剪切载荷通过添加加强结构而减少,而气体流动路径被配置为最小化由于纤维元件的偶尔破裂引起的淹没和氧合效率的损失。 通过对设备的叶片和其它部件进行轮廓化可以进一步减少血液创伤。