Kattan M, Miyasaka K, Volgyesi G, Froese A B
J Appl Physiol Respir Environ Exerc Physiol. 1978 Oct;45(4):630-6. doi: 10.1152/jappl.1978.45.4.630.
The properties of an air-filled polyurethane-coated nylon jacket for measuring volume parameters were determined on a model and in 13 subjects. There was a linear relationship between jacket pressure on a logarithmic scale and the lung volume change over an operating pressure range of 0.7-6 cmH2O. The magnitude of pressure change was frequency dependent. The magnitude of a calibration signal was reduced by superimposed tidal breathing. For the jacket tested, the calibration signal during tidal breathing was 87% of the calibration during apnea. With these properties established, a calibration technique was devised and tested on 13 infants. Corrected tidal volumes (VT) obtained with the jacket correlated well with those obtained with a pneumotachograph (r = 0.986). At the operating pressures used the jacket caused no significant change in functional residual capacity (FRC), VT, or frequency. The jacket is a reliable technique for measurement of VT and immediate changes in FRC in awake children.
在一个模型和13名受试者身上测定了用于测量容积参数的充气聚氨酯涂层尼龙夹克的特性。在0.7 - 6 cmH₂O的工作压力范围内，夹克压力的对数尺度与肺容积变化之间存在线性关系。压力变化的幅度取决于频率。叠加的潮气呼吸会降低校准信号的幅度。对于所测试的夹克，潮气呼吸期间的校准信号是呼吸暂停期间校准信号的87%。确定了这些特性后，设计了一种校准技术并在13名婴儿身上进行了测试。用夹克获得的校正潮气量（VT）与用呼吸流速仪获得的潮气量相关性良好（r = 0.986）。在所使用的工作压力下，夹克对功能残气量（FRC）、VT或频率没有显著影响。该夹克是测量清醒儿童VT和FRC即时变化的可靠技术。
