Attaching The H4I Heated Humidifier - ResMed C28173 Manual

248476r4.book Seite 14 Freitag, 28. Oktober 2011 3:10 15
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Connect one end of the air tubing firmly onto the air outlet of the H4i.
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Connect the mask system to the free end of the air tubing.
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Select the mask type (select Setup menu, then Clinical Settings, then Advanced Settings).
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Perform Learn Circuit (see "Setup menu: Options" on page 42).

Attaching the H4i heated humidifier

The Stellar 150 can be used with the H4i heated humidifier for noninvasive use when stationary.
It will be automatically detected when the Stellar 150 is turned on.
A humidifier is recommended especially for patients experiencing:
nasal stuffiness/congestion
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rhinnorhea following the use of mask ventilation
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dryness of the nose, throat or mouth
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patients with thick secretions (eg, cystic fibrosis, bronchiectasis, etc)
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patients using oxygen.
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Humidification may be required for patients who experience nasal and upper airway dryness as
a consequence of the high flow of air being directed through the nasal and oral passages. It may
also be required in those individuals who have tenacious secretions.
Mouth leaks occurring during the use of positive pressure therapy can significantly increase
nasal resistance. This increase in nasal resistance associated with mouth leaks may be
prevented by fully humidifying the inspired air. In most cases, using heated humidification is the
most effective way to decrease nasal resistance.
For information on using the H4i, see the H4i user guide.
WARNING
Always place the H4i on a level surface below the level of the patient to prevent the
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mask and tubing from filling with water.
Make sure that the water chamber is empty and thoroughly dried before transporting
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the humidifier.
The H4i humidifier is not intended for mobile use.
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Do not overfill the water chamber, as during use this will cause water to spill into the air
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circuit.
For optimal accuracy and synchrony, perform Learn Circuit with a change of the circuit
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configuration, in particular when adding or removing high impedance components (eg,
antibacterial filter, external humidifier, water trap, nasal pillow type mask or air tubing).
See "Setup menu: Options" on page 42.
CAUTION
Check the air circuit for water condensation. Use a water trap or a tubing wrap if
humidification is causing water condensation within the tube.
Notes:
A humidifier increases resistance in the air circuit and may affect triggering and cycling, and
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accuracy of display and delivered pressures. Therefore perform the Learn Circuit function
(see "Setup menu: Options" on page 42). The device adjusts the airflow resistance.
The heating feature of the H4i is disabled when the device is not mains powered.
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