Note: Other external humidifiers can be used for noninvasive setup. ResMed recommends using a breathing system (including antibacterial filter, air tubings, external humidifier) with an impedance of maximum 2 cm H2O at 30 L/min, 5 cm H2O at 60 L/min and 16 cm H2O at 120 L/min.
4Connect one end of the air tubing firmly onto the air outlet of the H4i.
5Connect the mask system to the free end of the air tubing.
6Select the mask type (select Setup menu, then Clinical Settings, then Advanced Settings).
7Perform Learn Circuit (see “Setup menu: Options” on page 16).
Attaching the H4i heated humidifier for noninvasive use
Use of the H4i heated humidifier may be recommended by your clinician. 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 mask and tubing from filling with water.
•Make sure that the water chamber is empty and thoroughly dried before transporting the humidifier.
•The H4i heated humidifier is not intended for mobile use.
•Do not overfill the water chamber, as during use this will cause water to spill into the air circuit. Check the air circuit regularly for accumulated water. If you observe water has spilled into the air circuit, clear the water and check that the water chamber is not overfilled. When using the H4i at high pressures (above 25 cm H2O) the use of a water trap will avoid water spillage back into the air circuit.
•For optimal accuracy and synchrony, perform Learn Circuit with a change of the circuit 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 16.
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 accuracy of display and delivered pressures. Therefore perform the Learn Circuit function (see “Setup menu: Options” on page 16). The device adjusts the airflow resistance.
•The heating feature of the H4i is disabled when the device is not mains powered.
Setting up for invasive use
The Stellar can be used invasively only with the ResMed Leak Valve, or using an uncuffed or deflated cuff tracheostomy tube with the ResMed Leak Port (24976).
WARNING
• Make sure that all the air inlets at the rear of the device and under the device and vents at the mask or at the ResMed Leak Valve are unobstructed. If you put the device on the floor, make sure the area is free from dust and clear of bedding, clothes or other objects that could block the air inlets.
•When using a Heated Moisture Exchange Filter (HMEF), replace the HMEF regularly as specified in the instructions provided with the HMEF.
•The H4i is contraindicated for invasive use. An external humidifier approved for invasive use is recommended according to EN ISO 8185 with an absolute humidity of > 33 mg/L.
•For optimal accuracy and synchrony, perform Learn Circuit with a change of the circuit 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 16.
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Setting up for invasive use | 5 |
