Datex-Ohmeda Anesthesia Delivery Unit S/5, Техническое справочное руководство

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Datex-Ohmeda ADU
C-8
Document No. 8502855
Figure 9 PEEP; Positive End Expiratory Pressure
Reaching the P
max
release pressure
When the patient circuit pressure reaches a preset P
max
release level, the ventilator switches to
expiration phase. The inspiration phase and tidal volume delivery are thus interrupted.
Measured parameters
Patient circuit pressures
The patient circuit pressure is measured at the point where the patient circuit is connected to the
bellows block. The pressure sensors are doubled for patient safety reasons.
The sensor(s) is used for:
•
Ventilator controls
•
Alarms and pressure curve
Patient circuit pressure are presented on display. The measurement is available in both Auto and
Manual modes.
•
The ”P
peak
” pressure is the peak value in Auto and Manual modes during each breathing cycle
•
The ”P
plat
” is the current pressure value when the expiration starts (Only Auto mode)
•
The “P
min
” is the minimum pressure during a ventilation cycle. (Only in Auto mode)
•
The End Expiratory Pressure (”P
peep
”) is the current pressure when the inspiration starts. (only in
Auto mode)