BRAUN, WOLFGANG,HERBER-JONAT, SUSANNE,HÖHNE, BERND,HUMMLER, HELMUT,SCHULZE, ANDREAS
申请号：
PL16717238
公开号：
PL3270993T3
申请日:
2016.03.10
申请国别(地区):
PL
年份:
2020
代理人:
摘要：
The present invention relates to a respirator having a respiratory tube connection for connecting a respiratory tube, an actuator which is pneumatically connected to the respiratory tube connection for discharging air via the respiratory tube connection to a patient, a breathing sensor connection for a respiration sensor for supplying a breathing sensor signal, and a programmable digital controller. The controller calculates a lung volume signal from the respiratory signal and an inhaled volume and an exhaled volume on the basis of the lung volume signal for each breath. The controller further determines when the exhaled volume exceeds the associated inhaled volume by an adjustable value and then increases the pressure at the end of the expiration. In another embodiment, the pressure is increased at the end of the expiration when the oxygen saturation falls below a lower threshold value. In a further embodiment, it is determined whether the oxygen saturation falls below a lower threshold value. In this case, a backup ventilation with a predetermined frequency is started. The frequency of the backup ventilation is reduced when the oxygen saturation again exceeds the lower threshold value. In a further embodiment, the backup ventilation is terminated when the oxygen saturation exceeds an average threshold value. The invention further relates to corresponding control methods.
