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    • 3. 发明授权
    • Pneumatic controller and method
    • 气动控制器及方法
    • US5916165A
    • 1999-06-29
    • US965583
    • 1997-11-06
    • Douglas J. DuchonJames B. EasleyChristine Kronich
    • Douglas J. DuchonJames B. EasleyChristine Kronich
    • F04B49/06A61M1/00A61M5/00A61M5/142A61M5/145
    • A61M5/14546A61M5/007
    • A pneumatic control device includes a housing, a pressure control member secured to the housing, a first fluid-conduit member, and a first sensor. The pressure control member is constructed and arranged to selectively change a fluid pressure within the control member. The first fluid-conduit member is in fluid-flow communication with the pressure control member. The first sensor is in fluid-flow communication with the first fluid-conduit member. The sensor is constructed and arranged to generate a control signal based upon the fluid pressure within the control member. In preferred systems, the pneumatic controller is useful for producing a variable control signal to control a rate of fluid dispersement to a patient in an angiographic system.
    • 气动控制装置包括壳体,固定到壳体的压力控制构件,第一流体管道构件和第一传感器。 压力控制构件被构造和布置成选择性地改变控制构件内的流体压力。 第一流体管道构件与压力控制构件流体流动连通。 第一传感器与第一流体管道构件流体流动连通。 传感器被构造和布置成基于控制构件内的流体压力产生控制信号。 在优选的系统中,气动控制器可用于产生可变控制信号以控制在血管造影系统中对患者的流体分散速率。