Lowenstein Medical elisa 300, Instructions For Use Manual

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A 5 | Ventilation modes and parameters
108
Instructions for Use elisa 300-500 | Supplement A | SW 2.09.x | Rev. 11
A 5.5.8
Optional BiLevel
Synchronised, pressure-controlled ventilation which allows the patient to breathe
spontaneously during the entire respiratory cycle. If the measured minute volume
is above the setting (Rate x Vt), the patient is able to breathe spontaneously. If the
minute volume drops below the setting, BiLevel breaths are triggered.
This mixed form of ventilation combines a synchronised, pressure-controlled, vol -
ume-targeted ventilation mode to ensure a specified minute volume with the
possibility of achieving deeper breaths using pressure support.
Depending on the current lung situation, the ventilator adapts the mandatory
pressure level so that the set tidal volume is applied with the lowest possible
inspiratory pressure.
The Pmax and Pmin parameters determine a range in which the ventilator is
allowed to automatically readjust the necessary pressure to achieve the desired
tidal volume.
In contrast to conventional SIMV ventilation, the user defines a minimum minute
volume by setting the respiratory rate and tidal volume. No mandatory breaths
are initiated if the minute volume can be achieved by the patient's spontaneous