Target device for regulating ventilation during voluntary hyperpnea.
Target device for regulating ventilation during voluntary hyperpnea.
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用于在自主呼吸过度期间调节通气的目标装置。
DOI：
10.1152/jappl.1983.55.6.1932
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发表时间：
1983
期刊：
影响因子：
--
通讯作者：
Leith,DE
中科院分区：
文献类型：
--
作者：
Leith,DE
描述了一种通气目标装置，其使得受试者能够在自主呼吸过度期间维持指定的通气水平。吸入的空气通过线性电阻。相关的压降由响应非常慢的机械压力计测量和显示。该时间平均压力与时间平均吸气流量成正比，从而与吸气分钟通气量成正比。描述了构造和校准。对于容量高达 240 升/分钟和 80 升/分钟的设备，吸气阻力范围分别为 0.6 至 1.9 cmH2O X 1(-1)S。该设备简单、便宜、稳定、便携、坚固、无动力且准确。没有经验的受试者很快就能学会使用它，并且可以将通气量维持在指定值的 5% 左右。
A ventilatory target device is described enabling subjects to maintain specified levels of ventilation during voluntary hyperpnea. Inspired air passes through a linear resistor. The associated pressure drop is measured and displayed by a mechanical manometer with a very slow response. This time-mean pressure is proportional to time-mean inspiratory flow and thus to inspired minute ventilation. Construction and calibration are described. Inspiratory resistances range between 0.6 and 1.9 cmH2O X 1(-1)S for devices with capacities up to 240 and 80 l/min, respectively. The device is simple, cheap, stable, portable, rugged, unpowered, and accurate. Inexperienced subjects quickly learn to use it and can maintain ventilations within about 5% of specified values.