ResMed Astral 150 User manual

Children’s Long-Term Ventilation Service
Clinical Team | Email:HospitaltoHomesup[email protected] | Telephone: [phone] x 84411
Astral 150 Ventilator
Information and User Guide for
Qualified Professionals

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For Review: August 2019
Author: LTV Team/JT
Contents
Description of Outside of Ventilator
Page 3
Understanding the screen
Page 5
Power
Page 7
Types of Ventilation Circuits
Page 10
Turning On/Off
Page 13
Circuit Calibration
Page 14
Programming Ventilation
Page 15
Adding Additional Ventilation Programmes
Page 18
Changing Between Programmes
Page 19
Starting and Stopping Ventilation
Page 20
Entraining Oxygen
Page 20
Replacing Air Filter
Page 21
Locking/Unlocking
Page 22
Monitoring
Page 22
Altering Parameters
Page 23
Setting Alarms
Page 23
Activated Alarms
Page 24
Testing Alarms
Page 25
Understanding Alarms
Page 26
Troubleshooting Common Problems
Page 27
Using Nebulisers
Page 29
Consumables
Page 31
Ventilator Tips
Page 31
Useful Contact Information
Page 31
Please Note: This user guide includes detailed guidance on setting and altering ventilation parameters. This guide
should therefore be used only by qualified medical professionals and those that have appropriate training to use this
device. For non-qualified members of staff please use the alternative user guide titled ‘Astral 150 Ventilator:
Information and User Guide for Home Care Workers’. Information was correct at time of printing and will be
reviewed at next review date shown below.

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Description of Outside of Ventilator
Inspiratory Port: Air going to the patient
Expiratory Port: Expired air coming
back to the ventilator
Power Button
USB Connector
(to download monitoring data)
Oxygen Connector
Air Inlet
Power Inlet

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1. Touch screen
2. Power source indicator
3. Ventilation on/off indicator
4. Alarm mute button
5. Alarm light

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Understanding the Screen
1. Lock/unlock button to access clinical menu
2. Manual breath button (only shown if enabled and in some settings)
3. Information bar (see page 6 for more information)
4. Battery power indicator
5. Lock touch screen button
6. Menu bar (see page 6 for more information)
7. Bottom bar
8. Start/Stop ventilation button
9. Main screen
10. Sub menus
11. Pressure bar (see below for more information)

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Information Bar (3)
The Information bar is displayed at the top of the touch screen. The Information bar displays the operating status of
the device, including patient type, current circuit configuration, programs, information messages, ventilation status,
alarms and power status.
Menu Bar (6)
This provide access to the four main menus in the Astral Device.

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Pressure Bar (11)
Power
The Astral runs on mains power and can be used with different power sources. These includes internal battery
power, external battery power and car charger power source.
Removing the power lead
The power cord is equipped with a push-pull locking
connector. To remove, grasp the power cord housing
and gently pull the connector back- this will release the
power cord.
NEVER twist its outer housing or pull on the cord and
NEVER force the cord from the Astral as it will break the
collar and it cannot be repaired.

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Internal Battery Power
The ventilator has an internal battery. Whilst the ventilator is connected to mains power the internal battery will
charge. When the mains power is disconnected the ventilator will automatically switch to using the internal battery
(assuming no external batttery is connected). There is no interuption to ventilation when this happens. The
ventilator will notify you of this change by sounding an alarm. The internal battery life is approximately 8 hours.
There will be slight variations in the battery life dependent on the individual child’s ventilator parameters and the
child’s respiratory pattern. Please observe the internal battery indicator carefully.
Warning:
•Please ensure to regularly check the internal battery.
•The internal battery should be replaced every two years, or when there is a noticeable reduction in usage
time when fully charged.
•Following a Field Safety Notice 1706001, MHRA has released a for the Astral ventilator (July 2017)
concerning the Astral power supply. Their current recommendations are that the internal battery is NOT
intended to serve as a primary power source. It should only be used when other sources are not available or
briefly when necessary; for example, when changing power sources. See image below.
Please Note: When the ventilator is running on internal battery power in standby mode no alarms will sound, take
care to observe the battery life indicator.

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External Battery Power
The external battery will power the device for approximately 8 hours. A maximum of two external batteries can be
connected to the Astral device.
Please Note:
•There will be slight variations in the battery life dependent on the individual child’s ventilator parameters
and the child’s respiratory pattern. Please observe the internal battery indicator carefully.
•The external battery cannot be charged from your main power. This can be used and recharged while
connected to the Astral device.
Previous External Battery
This may still be seen in the community giving 8 hours of power during typical use.
Please Note: When using this battery, the internal battery will not be charged. Do not use this battery with the new
external battery seen above. This is charge using an adapter connected to main power.
External battery with charging device –
charging both external and internal batteries

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Using a car Charger
When using a car adapter, start the car before connecting the adapter. If the power source drops the ventilator will
switch automatically to internal battery power.
Types of Ventilation Circuits
Types of Adapters
Connect to power source

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Fitting the Circuit Adaptor
Common Types of Circuit:
Single Leaked Circuit (wet)
The whole circuit should be changed weekly at home (i.e. once every 7 days). See local hospital guideline for
antibacterial filter.
Order code: 7073800 MR7LEAK15 from ResMed for circuit, 24988 from Resmed for additional leak valves (15 mm
circuit). See equipment list for other order code.
Leak Valve
Swivel Elbow
Heated Limb Circuit
Temp Probe Port
Humidifier Chamber
Bacterial Filter
Short Limb
Wire Port for Humidifier
From Ventilator
To Patient
Fill Line

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Single Leaked Circuit (dry)
The whole circuit should be changed every 7 days at home including antibacterial filter. See local hospital guideline
for antibacterial filter.
*Note: Heat Moisture Exchanger should be changed daily (i.e. once every 24hours)
Order code: 7077399 7LEAK15 from Resmed for circuit (15mm circuit), 1850 from Intersurgical for HME. See
equipment list for other order code.
Other Circuit that may be seen:
Double Limb Circuit (wet)
The whole circuit should be changed weekly at home including antibacterial filter. See local hospital guideline for
antibacterial filter.Order code: 5504810 from Intersurgical for circuit, 1644 from Intersurgical for filter.
Note: The grey PALL Filter should be changed minimum daily (i.e. once every 24hrs)
Order code: 70386 from Resmed or BB50TE Pall Medical.
Leak Valve
Heat Moisture
Exchanger (HME)
Changed daily
Bacterial Filter
Swivel Elbow
From Ventilator
To Patient

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Double Circuit (dry)
The whole circuit should be changed every 7 days at home including antibacterial filter. See local hospital guideline
for antibacterial filter.
Oder code: 5500 from Intersurgical
Note: Heat Moisture Exchanger should be changed daily (i.e. once every 24hours).
Order code: 1644 from Intersurgical for filter.
Turning On/Off
To turn the machine on and off, press the green button at the back of the machine. The ventilator can only be
powered off once the ventilation has been stopped.
Insert Heat Moisture Exchanger here
Changed daily
Antibacterial Filter
(connects to inspiratory
limb) Changed weekly

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Circuit Calibration
The ventilator will need to have a ‘learn circuit’ run on initial set up and for any additional different circuit type that
may be used i.e. a separate learn circuit is required for a wet circuit and then a dry circuit. The ‘learn circuit’ does not
need to be run at each scheduled circuit change.
It is recommended if both a wet and dry circuit are in use that 2 separate ventilation programmes are set up (see
page 15). A separate ‘learn circuit’ can be run for each programme and the ventilator will then remember the test for
the relevant circuit when the programme is selected.
From the Setup Menu, select the Circuit sub-menu. Press start and follow the on-screen prompts.
If ‘skip’ is selected, the device will revert to default factory settings.
Follow the on-screen prompts to attach and test the circuit. A test result is displayed if any of the tests fail,
otherwise the Learn Circuit function has been successfully completed and you will be returned to the main settings
page.
See ‘Troubleshooting Common Problems’ Section if the Learn Circuit fails for more guidance.
Note: It is acceptable to use a circuit that gives a caution message as the Astral device will compensate for circuit
resistance and compliance.

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Programming Ventilation
Unlock the clinical menu, press and hold the padlock symbol for 3 seconds.
Select 20 minutes or Unlimited then it will direct you to the main settings. You will be able to change the settings on
this interface depending on the tab you are in.
To exit clinical menu, press . The exit clinical mode screen is displayed. Press Confirm
Using Set-up Assistant
-To quickly set-up a ventilation to a new patient. Select ‘set up assistant’ and press start.
Main Settings
Alarm Settings

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A warning message will display then select Continue.
Select the type of patient: adult or paediatric.
Select the circuit type you wish to use.
The ventilator will now prompt you to run a ‘learn circuit’ (see page 14). Following a successful ‘learn circuit’ you will
now see the modes menu displayed - select the desired mode.

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Once the desired mode is selected you will be taken directly to the settings screen.
To enter the desired settings, highlight each parameter in turn. As a parameter is highlighted, up and down arrows
will appear to the right hand side of the screen. Use these to select the desired value. Once you have finished press
‘apply’.
Optional (may be change in double type of circuit): To alter trigger type, select ‘circuit’. The following menu will be
displayed and the trigger can be set as either pressure or flow.

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Adding Additional Ventilation Programmes
Up to 4 ventilation programmes may be enabled. To do this, unlock the clinical menu, press and hold the padlock
symbol for 3 seconds.
Select 20 minutes or Unlimited then it will direct you to the main settings.
Then select ‘program’ from the menu on the left hand side of the screen.

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The active program highlighted will be activated when switched “ON” from the Tab. In the example below P2 is now
on and active.
After activating the additional program, select ‘set up assistant’ to select the patient type, circuit and run a ‘learn
circuit’ before entering the desired settings. See Page: ‘Programming Ventilation’ for detailed guidance on this.
Changing Between Ventilation Programmes
It is possible to set up more than one ventilation programme. For example, some children may have a programme of
ventilation set to use when they are well and another for when they are unwell or for use with a wet ventilation
circuit and a dry ventilation circuit. If more than one ventilation programme is set, the home screen will appear as
below:
To activate the correct programme press on the appropriate icon so that it turns orange.
Press ‘confirm’
Then press start ventilation
Note: The ventilation should be started with the cap on the end of the circuit and removed once ready to attach to
the tracheostomy tube

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Starting/Stopping Ventilation
To start ventilation press the start ventilation icon.
To stop the ventilation, press and hold the stop ventilation icon for 3 seconds. Release when prompted and then
select ‘confirm’.
Entraining Oxygen
Oxygen is entrained via the oxygen nozzle on the back of the machine.
Note: When the machine is not in use oxygen should be turned off and when oxygen is not required the oxygen
nozzle should be removed.