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    • 3. 发明授权
    • Variable set point oxygen concentration mixer
    • 可变设定点氧浓度混合器
    • US5915834A
    • 1999-06-29
    • US871320
    • 1997-06-09
    • Kevin G. McCulloh
    • Kevin G. McCulloh
    • A61M16/12A61M16/00
    • A61M16/12
    • Apparatus for mixing two gasses, at least one of which contains oxygen, to a desired concentration of oxygen, comprising a mixing plenum, an inlet valve, for admitting one of the two gasses into the mixing plenum, an oxygen sensor for detecting oxygen concentration of mixed gasses in the mixing plenum and in response generating an output signal representative thereof, and a controller for receiving the output signal and a user input representing the desired concentration of oxygen, comparing the oxygen concentration of the mixed gasses represented by the output signal to the desired concentration of oxygen, and in response controlling the inlet valve to regulate flow of respective ones of the two gasses into the mixing plenum and thereby maintain the desired concentration of oxygen.
    • 用于将两种气体(其中至少一种含有氧气)混合到所需浓度的氧气的装置,包括混合气室,用于将两种气体中的一种进入混合增压室的入口阀,用于检测氧浓度的氧传感器 混合气体在混合增压室中并且响应于产生表示其的输出信号,以及用于接收输出信号的控制器和表示期望浓度的氧的用户输入,将由输出信号表示的混合气体的氧浓度与 期望的氧气浓度,并且响应于控制入口阀以调节两种气体中的相应气体进入混合增压室的流量,从而保持期望的氧气浓度。