Dräger Perseus A500, Руководство пользователя

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detected by an increasing inspiratory CO
2
measurement or a change in color (purple) of the
Dräger CO
2
absorber (see instructions for use of anesthesia device and CO
2
-absorber for more
information). Generally the absorber will absorb CO
2
and thus change color from the
bottom to the top. Due to the fact that high fresh gas flows dry out the CO
2
absorber there
might be a color change from the top to the bottom of the absorber. This does not impact
the absorption capability of the soda lime and does not pose any risk to the patient
because no volatile agents must be used. An exchange of the absorber is not required in
this case. The activation of an inspiratory CO
2
high alarm limit helps to directly inform the
user about an exhausted absorber.
- The anesthesia device should never be operated without a CO
2
absorber, except when
changing a used absorber. The permanent use of a CO
2
absorber ensures that the patient
does not inhale inspiratory CO
2
even in the case of error
– such as problems with the fresh gas
supply and/or delivery. By using high fresh gas flows of at least 150% of the minute volume of
the patient, there will only be limited rebreathing and therefore the absorber will last a longer
time. Nevertheless, the absorber should be changed every 7 days , regardless of whether the
absorption capacity has been spent.
- Only use Dräger absorber due to minimal dust emission . If using Perseus A500 with a
reusable absorber please always use a fresh dust filter when exchanging the soda lime. Using
soda limes of lesser quality may cause device failures.
2.12 System configuration / default settings
- Default settings can be configured at Dräger anesthesia devices. The default settings become
automatically active when starting a new patient case, when performing a device restart or when
using a dedicated device function (e.g. in Apollo via the soft key
“restore default settings”).
Particularly the following default settings should be adapted for the use in long-term ventilation:
alarm volume, alarm limits, ventilation settings (particularly Pmax in volume controlled
ventilation modes), fresh gas flow and fresh gas oxygen concentration, all alarms shall remain
active in MAN/SPON (i.e. the suppression of alarms in MAN/SPON is configured with “no”; this
setting can only be configured in Perseus and Apollo), deactivate N
2
O (all devices with electronic