Ventilatory capacity measuring instrument
    12.
    发明授权
    Ventilatory capacity measuring instrument 失效
    通风量测量仪

    公开(公告)号:US3958565A

    公开(公告)日:1976-05-25

    申请号:US488243

    申请日:1974-07-12

    CPC classification number: A61B5/0871

    Abstract: A human ventilatory capacity measurement instrument, of the kind which measures the peak flow rate of a single forced expiration, comprises a hollow cylindrical body housing a coaxial rod on which is carried a piston spring-biased in one longitudinal sense. The body is longitudinally slotted and has an indicator engaged in the slot for movement therealong by the piston when blown against its spring bias, but the indicator is returned to its starting position in the slot by independent movement. A scale is provided alongside the slot to give a measure of peak flow rate by the final rest position of the indicator when pushed by the piston.

    Abstract translation: 测量单个强迫呼气的峰值流量的人体通气量测量仪器包括一个中空的圆筒体,该中空圆柱体容纳一个同轴的杆,其上以一个纵向的方式承载弹簧偏压的活塞。 主体纵向开槽,并且具有接合在槽中的指示器,用于当其被弹簧偏压吹动时由活塞运动,但是指示器通过独立的运动返回到槽中的起始位置。 沿着槽口提供刻度,以便在由活塞推动时通过指示器的最终静止位置来测量峰值流量。

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