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    • 5. 发明申请
    • SYSTEMS AND METHODS FOR DYNAMIC PNEUMATIC VALVE DRIVER
    • 动力气动阀驱动系统与方法
    • WO2011071655A1
    • 2011-06-16
    • PCT/US2010/056305
    • 2010-11-11
    • ALCON RESEARCH, LTD.GAO, Shawn X.HOPKINS, Mark A.
    • GAO, Shawn X.HOPKINS, Mark A.
    • A61F9/007
    • A61F9/00736A61F2009/00874Y10T137/7761
    • In various embodiments, a pneumatic system valve for a surgical console may be controlled by a controller configured to adjust a valve duty cycle (VDC) of the valve to reduce a difference between the valve's differential pressure and a desired differential pressure. In some embodiments, average differential pressures may be detected and relayed from a pressure sensor, coupled to one or more ports of the valve, to the controller. The controller may compare the measured average differential pressure against the desired average differential pressure (e.g., received from the user). The controller may then determine a modified VDC to reduce a difference between the desired average differential pressure and the measured average differential pressure. In some embodiments, the desired average differential pressure may be determined based on input received from a user of the surgical console.
    • 在各种实施例中,用于外科手术控制台的气动系统阀可以由构造成调节阀的阀占空比(VDC)的控制器控制,以减小阀的差压和期望的压差之间的差。 在一些实施例中,可以检测平均压差并从耦合到阀的一个或多个端口的压力传感器中继到控制器。 控制器可以将测得的平均差压与所需的平均差压(例如,从用户接收)进行比较。 然后,控制器可以确定改进的VDC以减小所需的平均差压和测得的平均压差之间的差。 在一些实施例中,可以基于从手术控制台的用户接收的输入来确定期望的平均差压。