Gal'perin Iu Sh
Med Tekh. 2005 Jul-Aug(4):36-9.
According to the Standards IEC 60601-2-12:2001, and ISO 10651-1:1993, the delivered respiratory volume is measured on the basis of isothermal compliance value of a lung model. Meanwhile, actual compression/decompression into lung model is not isothermal but polytropic during calibration. Therefore, in medical practice standard calibration overestimates the respiratory volume of ventilated lungs. The alternative method of calibration and testing of channels suggested in this work does not require a priori information about lung stretchability. Determination of stretchability of a model contour as a parameter allowed the stretchability of lungs and respiratory volume to be calculated using the method suggested in this work based on measurement of volume of gas, discharged to the atmosphere through the gas exhaust port.
根据国际电工委员会标准IEC 60601-2-12:2001以及国际标准化组织标准ISO 10651-1:1993，输送的呼吸量是基于肺模型的等温顺应性值进行测量的。同时，在校准过程中，实际向肺模型中进行的压缩/解压并非等温过程，而是多变过程。因此，在医学实践中，标准校准会高估通气肺的呼吸量。本研究中提出的通道校准和测试的替代方法不需要关于肺可拉伸性的先验信息。将模型轮廓的可拉伸性确定为一个参数，使得能够基于通过排气口排放到大气中的气体体积测量，采用本研究中提出的方法来计算肺的可拉伸性和呼吸量。
