EvitaXL

Using HME, bacterial filters and hose systems*
Additional components in the breathing system or components
which diverge from the standard hose system can considerably
increase the inspiratory and expiratory breathing
resistance and exceed standard requirements.
Examples: Insp./exp. filters, HME**, coaxial hoses
In general, the EvitaXL is designed to minimise the breathing
effort made by the patient and is therefore not intended for the
use of insp./exp bacterial filters.
The use of bacterial filters or HMEs therefore requires particular
care and monitoring by the user. Especially during medicament
nebulisation and humidifying, the resistance of the
expiratory filter may increase gradually.
A higher breathing resistance leads to a greater breathing and
trigger effort during assisted ventilation. Under unfavourable
conditions, this can lead to an undesirable intrinsic PEEP. This
can be recognised by the fact that the expiratory flow does not
return to "0" at the end of expiration. If the PEEP is unacceptably
high, it is indicated by the alarm »PEEP high !!!«. The current
PEEP is then approx. 8 mbar above the set PEEP. Check
and replace the bacterial filter or HME if they are the cause of
the PEEP alarm.
A breathing resistance in the patient connection cannot be
monitored directly by the ventilator. For this reason:
● Determine inspiratory and expiratory breathing resistance
in the patient system before ventilation in standby by means
of the device check.
● Check the condition of the patient and the ventilator's measured
values for volume and resistance frequently.
● Observe the Instructions for Use for the HME, filter and
coaxial hose systems in use.
● Do not use an HME together with a medicament nebuliser
or breathing gas humidifier. This can lead to a greater
breathing resistance.
* Only applies to hose systems which are not described in these
Instructions for Use.
** Heat moisture exchanger
Preparing for use
Using HME, bacterial filters and hose systems
Instructions for Use EvitaXL 25