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    • 1. 发明授权
    • Process and device for signaling malfunctions of a respirator
    • 信号呼吸器故障的过程和设备
    • US4766894A
    • 1988-08-30
    • US37860
    • 1987-04-13
    • Michel LegrandLuc CaillotJean-Michel DonnolaRoman Siretchi
    • Michel LegrandLuc CaillotJean-Michel DonnolaRoman Siretchi
    • A61M16/00A62B7/02
    • A61M16/0051
    • This invention relates to the monitoring of the correct operation of a respirator with single source of energy constituted by a cylinder of pressurized oxygen, to which is annexed a device for connection to a patient. Such monitoring is effected with the aid of a pneumatically operating device which comprises a comparator with adjustable threshold, connected to the mask for connecting to the patient and followed by an amplifier whose output signal takes the binary logic level 1 during the time when the insufflation pressure in the mask is greater than said threshold, and takes the other binary logic level 0 in the opposite case, and a circuit for processing this signal, which triggers off an alarm device if the duration of the time intervals when this latter is at level 1 is too long or too short with respect to a predetermined normal value.
    • 本发明涉及一种具有由加压氧气瓶构成的单一能量源的呼吸器的正确操作的监视,附件包括用于连接到患者的装置。 这样的监测是借助气动操作装置来实现的,该装置包括具有可调节阈值的比较器,连接到掩模以连接到患者,并且后面是放大器,其输出信号在吹入压力 在掩模中大于所述阈值,并且在相反的情况下采用另一个二进制逻辑电平0,以及用于处理该信号的电路,如果后者处于1级时的时间间隔的持续时间,则触发报警装置 相对于预定的正常值太长或太短。