ResMed Astral Series Invasive and Non-Invasive Vantilator User Guide

ResMed Astral Series Invasive and Non-Invasive Vantilator User Guide

The Astral device

  1. Adapter port Can be fitted with single limb adapter, single limb leak adapter or double limb adapter (Astral 150 only)
  2. Handle
  3. Inspiratory port (to patient)
  4. Ethernet connector (service use only)
  5. USB connector (for download to ResScan and connection of approved accessories)
  6. Mini USB connector forResMed ConnectivityModule (RCM) or ResMedConnectivity ModuleHospital (RCMH)
  7. DC power inlet
  8. Device on/off push button
  9. SpO2 Sensor connector
  10. Remote alarm five pin connector
  11. Low flow oxygen input(up to 30L/min)
  12. Air inlet (complete with hypoallergenic filter)

Note: Some accessories may not be available in all regions.

The Astral device interface

  1. Touch screen
  2. Power source indicators
    • AC (mains power supply)
    • DC (external battery, can accessory adapter or ResMed Power Station II)
    • Internal battery
  3. Therapy on/off indicatorDevice readyConstant green display when the device is turned on but not ventilating.Device ventilatingFlashes blue when the device is ventilating and the Ventilation LED setting is ‘ON’. Otherwise is ‘OFF’
  4. Alarm mute/reset button Illuminates when an alarm is triggered and flashes when the sound is muted.
  5. Alarm bar

Touch screen 

  1. Clinical mode access button Locked Unlocked
  2. Manual breath button only shown if enabled
  3. Information bar
  4. Internal battery indicator
  5. Lock touch screen button
  6. Menu bar
  7. Bottom bar
  8. Start ventilation buttonStop ventilation button
  9. Main screen
  10. Sub menus
  11. Pressure bar

Patient circuits

The Astral device supports single and double limb circuits with the use of interchangeable circuit adapters.

Breathing circuits may be of 10, 15 or 22 mm diameter. For recommended patient circuit components and compatible accessories, refer to www.resmed.com/astral/circuits.

There are three circuit adapters:

Adapter For use with
1. Single limb leak Single limb circuit with intentional leak or Mouthpiece circuit
2. Single limb Single limb circuit with expiratory valve (expiratory valve integrated into the circuit)
3. Double limb (Astral 150 only) Double limb circuit (expiratory valve integrated into the adapter) OR single limb circuit with intentional leak or Mouthpiece circuit

Fitting the circuit adapter

Before connecting the patient circuit, the adapter specific to the required circuit type must be fitted. To fit the adapter:

  1. Turn over the device and place on a soft surface (to protect the LCD screen).
  2. Press and hold the eject button. Pull the cover out towards you.
  3. Lift the adapter out of the socket.
  4. Replace with the new adapter, ensuring it sits firmly in the socket.
  5. Place the cover over the enclosure, ensuring the runners on the device and the cover are aligned. Slide the cover back into place until the latch clicks.

Setting up the circuit

For complete details on setting up the circuit see Assembling patient circuits in the Astral Clinical Guide.

Single limb circuit with intentional leak or Mouthpiece circuit

Single limb circuit with expiratory valve using standard circuit

Single limb circuit with expiratory valve using ResMed proprietary circuit

Double limb circuit (Astral 150 only) or single limb circuit with intentional leak and Mouthpiece circuit

Performing a Learn Circuit

Do not connect patient interfaces prior to performing the Learn Circuit.

  1. From the Setup menu, select the Circuit sub menu.
  2. Press Start and follow the on-screen prompts.

A Results screen is displayed once Learn Circuit is complete. Error codes are provided if Learn Circuit fails and can be found in the Clinical Guide for help with troubleshooting. The previous test results can be accessed by selecting the Results button in the Circuit sub menu

Powering on the device

To power on the device, simply press the green power on/off switch at the back of the device. The device will perform a system check.

On completion of the system check, the Patient Home screen and active program is displayed.

If more than one program displays, the active program will be highlighted orange.

Note: Settings configured in the active program will be used when ventilation is started.

Accessing Clinical mode

To access Clinical mode: 

Clinical mode can be accessed from any screen, whether or not the Astral device is ventilating.

  1. From the patient home screen, press and hold for 3 seconds.
  2. Select 20 minutes or Unlimited. The padlock is unlocked and the Main Settings screen is displayed.

To exit Clinical mode: 

  1. Press  The Exit Clinical Mode screen is displayed.
  2. Press Confirm. The padlock is locked and the Patient Home screen is displayed.

Note: If you do not make a selection within 7 seconds, the device returns to the previous screen.

Using the Setup Assistant

To quickly set up the Astral device and start ventilation for a new patient, use the Setup Assistant.

  1. Access Clinical mode.
  2. From the main menu, press
  3. Select Setup Assistant and press Start.
  4. A warning message will display. Select Continue.
  5. Select the patient type to automatically configure alarm and setting ranges.
  6. Select the circuit type to be connected.
  7. Select Start to run the Learn Circuit.
  8. Follow the on-screen prompts to attach and test the circuit.
  9. Select your required ventilation mode.The default settings for the mode are displayed.
  10. Review and adjust the settings as required.
  11. Press to start ventilation.

For further information on adjusting setting parameters and alarm settings, see Adjusting patient settings and Adjusting alarm settings in the Astral Clinical Guide.

Navigating the menus

Waveforms Displays the last 15 seconds of patient airway pressure and flow in a graph. The graph updates in real-time.
Monitoring Displays all measured parameters in numerical form
Trends Displays trending of various parameters for the last 30 days.
Program
Setup Assistant
Circuit
Settings Main SettingsManual BreathSigh Breath
USB Patient DataSettings Upgrade
Device Configuration Device Date / Time Units Patient access
Alarm 1 & 2 Tidal Volume (Vt) Minute Ventilation (Mv) Respiratory Rate Pressure Low PEEP Ventilation Stop Leak NV mask / Rebreathing
Alarm 3 FiO2 SpO2 Pulse
Apnoea Response Apnoea Response Apnoea Detection
Alarm Volume Alarm Level Alarm Minimum Volume Alarm Test
Disconnection Alarm Disconnection Alarm
Events Alarms Settings System Delete*
Device Basic Advanced
Battery Charge Maintenance

Enabling additional programs

The Astral device comes factory preset with one active program. Additional programs can be enabled.

  1. Access Clinical mode.
  2. From the Setup main menu, select Programs.
  3. Enable additional programs by pressing the slider.Note: The current active program is highlighted in orange and cannot be disabled.
  4. Rename the program by pressing theRename button. Within the Rename window, a name for the current active program can be chosen from the list provided (eg, DAY).Note: A selected name can be removed by pressing the delete button .
  5. When selected, the program name is displayed on the program label and on the information bar when that program is active.

Enabling the ‘Big buttons’ mode

The Astral device offers an enhanced access feature (‘Big buttons’ mode) to provide easier usability and accessibility for starting and stopping ventilation as well as Alarm mute.

The ‘Big buttons’ mode can be switched on and off as required in either Clinical or Patient mode.

  1. From the main menu, press .
  2. Select the Patient Access tab from the Device Config. menu.
  3. Move the Big buttons slider to On.Your enhanced access feature is now enabled.

Alarms

When an alarm is activated, the Astral device provides both audible and visual alerts, and displays an alarm message in the Alarm display on the Information bar.

Alarm priority Alarm bar Audible alert
High Red flashing light 10 beeps every 5 seconds
Medium Yellow flashing light 3 beeps every 15 seconds
Low Yellow steady 2 beeps every 25 seconds

 

Indicator Description
1. Alarm display Displays either the alarm message for the highest priority active alarm, or the last alarm not yet reset

Press the Alarm display for further alarm information.

Certain conditions may result in multiple alarms. indicates that there are multiple active alarms.

Press when displayed to view all active alarms and respond appropriately. Alarms are displayed in order of priority.
2. Active Alarms screen Displays the full set of active alarms. Will automatically display upon activation of an alarm in patient mode.
3. Information menu Some alarms clear automatically. To view a history of alarms, view the alarm log through the Information menu.
4. Alarm mute/reset button State:

  • no light – no active alarms
  • steady light – active alarm/s
  • flashing light – alarm mute on.

This button also allows you to:

  • mute the audible alert
  • reset the currently displayed alarm (if permitted).
Alarm bar Indicates the priority of the alarm in the Alarm display

Attaching a humidifier

  1. Connect a length of air tubing to the inspiratory port of the device.
  2. Connect the other end of the air tubing to the inlet port of the humidifier.
  3. Connect the patient circuit to the outlet port on the humidifier.

Attaching a Heat Moisture Exchange (HME) 

An HME can be used with the Astral device with a double limb circuit or single limb circuit with integrated valve.

Place the HME between the patient end of the circuit and the patient interface.

Do not connect patient interfaces prior to performing the Learn Circuit.

Attaching an antibacterial filter 

  1. Fit the antibacterial filter to the inspiratory port of the device.
  2. Connect the air tubing to the other side of the filter.
  3. Perform the Learn Circuit function.
  4. Attach the patient interface to the free end of the air tubing.

For a full list of accessories, see the Ventilation accessories guide on www.resmed.com. If you do not have internet access, please contact your ResMed representative.

ResMed Ltd 

1 Elizabeth Macarthur Drive, Bella Vista NSW 2153 Australia

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See ResMed.com for other ResMed locations worldwide. Astral is a trademark and/or registered trademark of the ResMed family of companies. For patent and other intellectual property information, see ResMed.com/ip. © 2018 ResMed Ltd. 278119/3 2018-07.

 

References

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