Lowenstein Medical elisa 300, Инструкция по эксплуатации, Страница: 249 / 457

Functions | A 3
Instructions for Use elisa 300-500 | Supplement A | SW 2.09.x | Rev. 11
33
A 3.3.1
Suction with open suction systems
The manoeuvre consists of three phases:
Pre-oxygenation Suctioning Post-oxygenation
2:00 min 2:00 min 2:00 min
Start the manoeuvre by pressing the “Pre-oxygenation” button.
Once the suction routine has been started, it can be terminated during any phase
and at any time by pressing and confirming the “Stop” function button.
A 3.3.1.1
Preoxygenation phase
The user can change the default O
2
concentration value to any desired O
2
value.
The set O
2
concentration is stored and automatically applied when the ASR ma-
noeuvre is accessed again. The setting is valid until a new system test is carried out
and the default value is set again.
Once the pre-oxygenation phase has started, the remaining time is displayed by a
count-down timer in the form of a bar chart.
The pre-oxygenation phase can be terminated at any time with the “Stop” func -
tion button, or the suction phase can be started prematurely with the “Suction”
function button.
Remark
If the breathing circuit is opened during the pre-oxygenation
phase, the intensive care ventilator switches to the suction phase
after detecting the open circuit.
A 3.3.1.2
Suction phase
Upon completion of the pre-oxygenation phase, the ventilator emits a short
acoustic signal and switches to the suction phase.
The remaining time of the suction phase is displayed by a count-down timer in
the form of a bar chart. The gas supply valves are closed and the expiratory valve
is opened at the start of the suction phase. Thus, the pressure in the breathing
circuit is relieved and the patient tube connection can be opened without any risk
for contamination.
Warning
All patient alarms are deactivated once the breathing circuit has
been opened. A short acoustic signal is repeated every 10 seconds
to remind the user that ventilation is not active.
The inspiratory flow and the expiratory valve are reconnected 10 seconds after
starting the suction phase.