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Pressure
pMax
automated ventilation
PEEP
The SIMV + ASB mode is used for volume-controlled ventilation with a fixed mandatory
minute volume MV.
The patient can breathe spontaneously between the mandatory mechanical breaths and
thereby increase the minute volume.
During spontaneous respiration, the mandatory mechanical breath is synchronized with
the patient's breathing. The mandatory minute volume and the mandatory respiration rate
remain unchanged.
The set maximum pressure limitation (pMax) ensures the safety of the patient.
The SIMV + ASB ventilation mode is also used as the mode for Apnea ventilation
(see "Apnea ventilation" on page 66).
The patient can trigger a mandatory, pressure-controlled mechanical breath during a
predetermined trigger time slot. The trigger time slot is available in the final 20% of
expiration time T
. For the rest of the time, the patient can breathe spontaneously or with
e
the aid of pressure support (see "CPAP + ASB" on page 74).
spontaneous
pPlat
respiration
1/Freq. (current)
1/Freq. (set)
assisted
synchronized automated
spontaneous
respiration
ΔpASB
Synchronized time slot
Ventilation modes
ventilation
ΔT
EN
Time
83
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