呼吸応答型NCPAP素子とNDPAP素子との性能比較

抄録

This paper describes the results of performance comparison between the NDPAP device and the HNCPAP device. NDPAP device and HNCPAP device were separately attached to the neonatal spontaneous breathing simulator (PT-2), and the experiment was performed in a breathing mode (healthy lung, lung with increased airway resistance, lung with reduced compliance) that simulated breathing at a constant MAP of 500 Pa. In the experiment, diaphragm displacement, ventilation, alveolar pressure, flow, airway pressure, and CPAP pressure were measured. When the rise time from the minimum decompression value to MAP was investigated in the airway pressure waveform, it was about 0.1 second for the NDPAP device and about 0.025 second for the HNCPAP device. It was confirmed that the sensitivity of the NDPAP element was poor and that of the HNCPAP element was good. The CPAP pressure waveform at the time of inspiration in each respiratory mode of the HNCPAP element was a waveform in which the amplitude of the alveolar pressure was reduced. Therefore, it was found that respiratory monitoring is possible from the CPAP pressure waveform during inspiration.