Weinmann MEDUMAT Standard2 Instructions For Use Manual page 157

The SIMV mode is used for volume-controlled ventilation with a
fixed mandatory minute volume. 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. When the
maximum ventilation pressure (pMax) is achieved, the device
maintains the pMax up until the end of the inspiration time and
then switches to expiration. As such, the set tidal volume is possibly
not fully applied if the maximum ventilation pressure (pMax) is not
achieved during inspiration.
7.3.9 SIMV + ASB mode
Description
Abbreviation
Long form
Type
Requirement
Ventilation parameters
Left-hand navigation knob
Central navigation knob
Right-hand navigation knob
7 Description of the modes
SIMV + ASB
Synchronized Intermittent Mandatory
Ventilation + Assisted Spontaneous
Breathing
Volume-controlled
• SIMV option is activated
• Flow measurement + ASB option
is activated
Vt
Freq.
• PEEP
• pMax
• ∆ pASB
• InTr
• ExTr (does not appear if at least
one pressure-controlled ventilation
mode is activated)
• I:E
• Emergency mode
MEDUMAT Standard
2
EN 157