6
1.4 Technical data
Height 14.2
mm
Diameter 27.8
mm
Weight 1.5
g
Compressible Volume
5 ml (dead space)
Provox XtraMoist
Provox XtraFlow
Pressure Drop at 30 l/min*
0.7 hPa
0.4 hPa
Pressure Drop at 60 l/min*
2.4 hPa
1.3 hPa
Pressure Drop at 90 l/min*
4.8 hPa
2.9 hPa
Moisture loss at VT=1000 ml**
21.5 mg/l
24 mg/l
Moisture output**
22.5 mg/l
20 mg/l
*
Pressure drop after 1 h according to ISO 9360.
** According to ISO 9360.
It is recommended to use the Provox XtraHME continuously. When continuously
using an HME the pulmonary function is likely to improve in a majority
of patients, and respiratory problems, e.g. coughing and mucus production
subsequently decrease.
If you have not used HME’s previously you should be aware that the device
increases breathing resistance to some extent. Especially in the beginning this
may be experienced as discomfort. Starting with Provox XtraFlow Cassettes
may therefore be advisable.
During the
fi
rst days or weeks of use the mucus production may also appear
to increase due to thinning of the mucus by retained water.
1.5 WARNINGS
• Be careful not to exert pressure on the lid of the HME unintentionally.
Unintentional or accidental closing of the top lid may cause dif
fi
culty in
breathing.
• Always inform the patient, caretakers and others about the closing feature
of the HME cassette to ensure that they understand its function. Closing the
airway to allow voicing is a well-known feature for the laryngectomized
patient with a voice prosthesis. For patients without a voice prosthesis or
tracheostomized patients this feature might be unknown.
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