9 Maintenance
9.3 Expiratory assembly: flow expiratory valve Monnal EVA
There are two types of expiratory assembly: single-use assemblies and autoclavable assemblies (re-
usable).
The sensor and the single-use expiratory assembly valve are transparent. Both of these components
bear a Part Number, Batch Number, and the following logo:
2
The sensor and the autoclavable expiratory assembly valve are colored blue. Both of these compo-
nents bear a unit Serial Number, a Part Number, and the ‘autoclavable’ logo:
(Refer to the summary of markings below).
Single-use version
The expiratory assembly is delivered by Air Liquide Medical Systems clean and ready for clinical use.
The exchange interval depends on hospital infection-control protocols, the presence of secretions and
the nebulization of drugs.
Reusing single-use accessories or consumables carries the risk of patient cross-contamination.
Autoclavable version
The expiratory assembly is intended to undergo at least 50 sterilization cycles.
To help track the number of cycles, the sensor and valve are marked with a unit serial number (SN).
The expiratory flow sensor (67) requires special precautions during pre-disinfection, cleaning, and dis-
infection. It consists of a very fine, fragile platinum wire.
It is therefore important to:
•
Avoid inserting any object into the flow sensor,
•
Avoid exposing it to a jet of water or air,
•
Avoid bumping or dropping it.
Summary of markings
Markings
Autoclavable
Single-use
134°
MAX
2
serial number
part number
Expiratory valve
part number
batch number
134°
MAX
2
Expiratory
flow sensor
serial number
part number
93
Summary of Contents for MONNAL T75
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