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    • 10. 发明授权
    • Ventilator apparatus
    • 呼吸机设备
    • US4384576A
    • 1983-05-24
    • US234306
    • 1981-02-13
    • Robert B. Farmer
    • Robert B. Farmer
    • A61M16/00
    • A61M16/00A61M16/0072Y10T137/7907Y10T74/16
    • A portable positive displacement respirator/ventilator is provided for both a pressure sigh and a volume sigh of predetermined duration and frequency by providing a variable length crank arm connecting a piston through a connecting rod by mounting the connecting rod on a circular toothed gear, pivoting the gear for movement at its center and driven on its outer edge with a separate motor driven pivot gear which when moved relocates the effective length of movement of the point of attachment of the connecting rod thereby changing the volume swept by the piston for the same arc of reciprocal movement of the larger circular toothed gear enabling both a volume change or a volume sigh with the device. A cooperating multiplicity of adjustable pressure regulating valves where at least one can be intermittently closed during the operation of the device regulates ventilation pressure or breathing pressure and sigh pressure.
    • 通过提供可变长度的曲柄臂,通过将连杆安装在圆形齿轮上来连接活塞通过连接杆来提供用于压力叹气和预定持续时间和频率的体积叹息的便携式正排量呼吸器/呼吸机, 齿轮用于在其中心运动并且在其外边缘上由单独的马达驱动的枢轴齿轮驱动,当移动时重新定位连杆的连接点的有效运动长度,从而改变由活塞扫过的体积, 较大的圆形齿轮的往复运动使得能够同时进行体积变化或体积叹息。 可调整的压力调节阀的协同多样性,其中至少一个可以在装置的操作期间间歇地关闭来调节通气压力或呼吸压力和叹气压力。