ResMed Astral Series Clinical Manual
  1. Manuals
  2. Brands
  3. ResMed Manuals
  4. Medical Equipment
  5. Astral Series
  6. Clinical manual

ResMed Astral Series Clinical Manual

Hide thumbs Also See for Astral Series:
Table of Contents

Advertisement

Quick Links

Download this manual
Clinical guide
English
16/06/2014 2:07:43 PM

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Astral Series and is the answer not in the manual?

Questions and answers

William E Buhse
May 28, 2025

Ventilator alarm system fault #140 while patient in use.

0
1 comments:
Mr. Anderson
May 28, 2025

Ventilator alarm system fault #140 on the ResMed Series indicates that the hardware pressure safety limit was exceeded. If the problem recurs, the device should be returned for service.

This answer is automatically generated

0

Related Manuals for ResMed Astral Series

Summary of Contents for ResMed Astral Series

  • Page 1 Clinical guide English 278007 Astral 100_150_CG_cover_AMER_Eng_Spine.indd 2 16/06/2014 2:07:43 PM...
  • Page 2 278007 Astral 100_150_CG_cover_AMER_Eng_Spine.indd 3 16/06/2014 2:07:43 PM...

  • Page 3: Table Of Contents

    Patient circuit accessories ....................12 Optional accessories ......................12 Power supplies ..........................12 Astral Mobility bag ..........................12 ResMed Hospital Trolley ........................12 Remote Alarm II ..........................13 Pulse oximeter ..........................13 Astral Desktop Stand ........................13 Using the Astral device ......................14 Connecting to mains power ....................
  • Page 4 Traveling with the Astral device ..................50 Power ............................ 51 Connecting to mains power ..................... 51 Connecting to a ResMed Power Station (RPSII) .............. 52 Connecting the Astral External Battery ................53 Using the External Battery ........................ 53 Using the internal battery ....................54 Battery run time ..........................
  • Page 5 Interdependence of controls ..................... 73 Dynamic settings limits ........................73 Automatic reconfiguration of settings ....................73 Triggering and cycling ....................... 74 Triggering with intentional leak circuits .................... 75 Cycling with intentional leak circuits ....................75 Triggering with valve circuits ......................76 Changing the Trigger Type ........................
  • Page 6 Oximetry alarms ......................104 SpO2 ............................... 105 Pulse rate ............................105 Apnea alarm ........................105 Ventilation stopped alarm ....................105 Power alarms ......................... 106 System alarms ........................ 106 Detecting circuit disconnection and de-cannulation ............107 Data management process ....................109 Data management summary ..................
  • Page 7 Recommendations for suctioning ..................142 Limited warranty ........................ 143 Appendix A: Definitions ..................... 144 Ventilation settings definitions ..................144 Measured and calculated parameter definitions ............. 146 Appendix B: Ventilation parameters ................. 148 Ventilation Parameters summary table ................148 Ventilation displayed parameters ..................151 Supplementary Features ....................

  • Page 9: Introduction

    Introduction Introduction The Astral device provides mechanical ventilation to both ventilation dependent and non-dependent patients. It delivers pressure and volume ventilation through either a valve or leak circuit, and is compatible with a range of accessories to support specific use cases. The information in this guide applies to both the Astral 100 and the Astral 150 devices.

  • Page 10: Contraindications

    Introduction Contraindications The Astral device is contraindicated in patients with the following pre-existing conditions: pneumothorax or pneumomediastinum pathologically low blood pressure, particularly if associated with intravascular volume depletion cerebrospinal fluid leak, recent cranial surgery or trauma severe bullous lung disease dehydration.
  • Page 11 A caution explains special measures for the safe and effective use of the device. CAUTION Repairs and servicing should only be performed by an authorized ResMed service representative. The airflow for breathing produced by the device can be as much as 42ºF (6ºC) higher than the temperature of the room.

  • Page 12: The Astral System

    ResMed Hospital Trolley ResMed HumiCare D900 Humidifier Pulse oximeter. For a full list of accessories, see the Ventilation accessories guide on www.resmed.com on the Products page under Service and Support. If you do not have internet access, please contact your ResMed representative.

  • Page 13: The Astral Device

    The Astral system The Astral device The following images describe the components of the Astral device. English...

  • Page 14: The Astral Device Interface

    The Astral system Description Adapter port Can be fitted with single limb adapter, single limb leak adapter or double limb adapter (Astral 150 only). Handle Inspiratory port (to patient) Provides an outlet for pressurised air to be delivered to the patient via the patient circuit. Includes FiO sensor on the Astral 150.
  • Page 15 The Astral system Description Touch screen Power source indicators AC (mains power supply) DC (external battery or car accessory adapter) Internal battery Therapy on/off indicator Device ready Constant green display when the device is turned on but not ventilating. Device ventilating Flashes blue when the device is ventilating and the Ventilation LED setting is 'ON'.

  • Page 16: Touch Screen

    The Astral system Touch screen The main method of interacting with the Astral device is via the touch screen. The display on the touch screen changes according to the function being performed. Description Clinical mode access button Locked Unlocked Manual breath button only shown if enabled Information bar Internal battery indicator...

  • Page 17: Information Bar

    The Astral system Information bar 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. Description Patient type –...

  • Page 18: Menu Bar

    The Astral system Menu bar The Menu bar provides access to the four main menus in the Astral device. Monitors menu View real-time patient data in either waveform or monitoring formats including pressure, flow, leak, tidal volume, synchronization and oximetry. Setup menu Configure and view ventilation therapy and device settings.

  • Page 19: Pressure Bar

    The Astral system Pressure bar The Pressure bar displays real-time therapy data while the Astral device is ventilating. Patient pressure is shown as a bar graph. Peak inspiratory pressure is shown as a numerical value and watermark. Spontaneously triggering and cycling is indicated by The example below displays the pressure bar when a patient is spontaneously breathing.

  • Page 20: Patient Circuit Accessories

    The bag holds the Astral device, optional battery pack and an Astral power supply unit. ResMed Hospital Trolley The ResMed Hospital Trolley is designed to hold and move compatible ResMed ventilators and accessories between points of therapy in the hospital and limited care facilities. For further...

  • Page 21: Remote Alarm Ii

    The Astral system Remote Alarm II The Remote Alarm II is self-powered (via battery) and connected to the Astral device via a cable. If required, a second Remote Alarm can be attached to the first Remote Alarm. This enables Remote Alarms to be placed in two separate locations. The Remote Alarm II can also be connected to a hospital alarm management system.

  • Page 22: Using The Astral Device

    Connecting to mains power To connect to mains power: 1. Connect the DC plug of the supplied ResMed external power supply unit to the rear of the Astral device. 2. Connect the power cord to the ResMed power supply unit.

  • Page 23: Powering Off The Device

    Using the Astral device Powering off the device The Astral device can only be powered off when ventilation is stopped. Removing AC power does not power off the device. The device remains powered on internal battery. Turning off the device must be done manually and must be performed before leaving the device disconnected from AC power for any extended period of time.

  • Page 24: Using The Setup Assistant

    Using the Astral device 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.
  • Page 25 Using the Astral device A warning message will display. Select Continue. 5. Select the patient type. This will automatically configure default alarm and setting ranges. 6. The Select Circuit type screen is displayed. Select the circuit type to be connected to the device.
  • Page 26 Using the Astral device 8. Follow the prompts to attach and test the circuit. For detailed instructions on how to attach the circuit, see Assembling patient circuits (see page 31). When the Learn Circuit is complete, you will be prompted to select your required ventilation mode.

  • Page 27: Starting And Stopping Ventilation

    Always ensure that the values in the ventilation therapy and alarm settings are appropriate before starting therapy. Note: If using the device for the first time, ResMed recommends performing a functional test before starting ventilation. See Using the Astral device for the first time (see page 57).

  • Page 28: Navigating The Menus

    Using the Astral device Navigating the menus The Astral device has four menus accessible via the Menu bar. Each menu is further broken down into various sub-menus. Navigating the menus This chapter focuses on what the menus are and their structure. For information on adjusting and configuring features, see Using the Astral device (see page 14).

  • Page 29: Monitors Menu

    Using the Astral device Monitors menu The Monitors menu allows you to view real-time ventilation data and is comprised of three sub-menus: Waveforms Monitors Trends Setup menu The Setup menu displays six different sub-menus: Programs—to configure therapy programs Setup Assistant—guides you through device setup Circuit—to set up the circuit Settings—to change the ventilation mode and related settings Data transfer—to transfer data between the device and a personal computer via a USB stick...

  • Page 30: Alarms Menu

    Using the Astral device Alarms menu Display the Alarms menu to view/update the individual thresholds for each alarm to trigger. Real-time values are displayed between the upper and lower thresholds. The options available for adjustment change depending on the circuit configuration. Information menu The Information menu is comprised of two sub-menus: Events—all logged event activity that has taken place is displayed.

  • Page 31: Programs

    Using the Astral device Programs WARNING The safety and effectiveness of ventilation therapy and alarms settings should be verified for each enabled Program. Working with programs The Astral device comes factory preset with one active program. Additional programs can be enabled.

  • Page 32: Setting Up A New Program

    Using the Astral device 5. Select and start the Setup assistant. See Using the Setup Assistant (see page 16). Once the Setup assistant is complete, P2 will now be configured to the settings you have chosen and is ready to Start ventilation. In the example below, P2 has been changed from (A)CV mode to P(A)CV.
  • Page 33 Using the Astral device 2. Press the Ventilation mode button. The Select Ventilation Mode screen will display, the current active Ventilation mode will be highlighted orange. Select your required Ventilation mode. You will be returned to the Main Settings page. All changes you have made will be outlined in orange, indicating a pending status until you press Apply.

  • Page 34: Adjusting Patient Settings

    Using the Astral device Adjusting patient settings To adjust patient settings of the current active program: 1. Access Clinical mode. The Main settings screen will be displayed. 2. Select the setting that you want to adjust. The selected setting is highlighted in orange and the up and down scroll arrows appear.

  • Page 35: Monitoring Ventilation

    Using the Astral device Monitoring ventilation During ventilation, ventilation parameters are continuously monitored and displayed in real-time. The measures are displayed as follows: Numerical values on the Monitoring screen and a summary of critical values in the bottom Graphically on the Waveforms screen and Pressure bar. Monitoring screen The Monitoring screen displays all measured parameters in numerical form.
  • Page 36 Using the Astral device Continuously displayed monitors During ventilation, the Bottom bar displays the current measures for VT, MV, Resp.rate, Ti, % Spont Trig, and Leak. For a detailed description of the Bottom bar see Getting to know the Astral device (see page 6).

  • Page 37: Device Settings

    Using the Astral device Device settings All device configuration settings are stored independently of patient programs. The configurable settings are described in the following table. Device setting Adjustable Description by patient Inspiratory Determines how to set-up the inspiratory phase for volume controlled breaths. Phase Duration Can be set to either Ti Option or PIF Option.

  • Page 38: Adjusting Device Settings

    Using the Astral device Adjusting device settings Access adjustable device settings from the Setup menu and select Device config. The current active selections are highlighted in orange. To change settings, simply select another of the available options. The revised setting is highlighted in orange.

  • Page 39: Assembling Patient Circuits

    Assembling patient circuits Assembling patient circuits WARNING Use a double limb circuit for direct measurement of exhaled volumes. In this configuration, the expired volume is returned to the ventilator for independent measurement. (Astral 150 only) The Astral device does not support monitoring of exhaled volumes when used with a single limb circuit with expiratory valve.

  • Page 40: Circuit Adapters

    Assembling patient circuits Circuit adapters There are three circuit adapters: Adapter For use with Single limb leak Single limb circuit with intentional leak Single limb Single limb circuit with expiratory valve (expiratory valve integrated into the circuit) Double limb Double limb circuit (expiratory valve integrated into the adapter) OR single limb (Astral 150 only) circuit with intentional leak A Learn Circuit should be performed after any change of circuit.

  • Page 41: Fitting The Circuit Adapter

    Slide the cover back into place until the latch clicks. Connecting a single limb circuit with intentional leak An intentional leak may be provided in-line using the ResMed Leak Valve or via an integrated mask vent. When using a circuit with intentional leak, estimation of the patient respiratory flow is enhanced by ResMed's automatic leak management feature Vsync.
  • Page 42 4. Select the circuit type and perform a Learn Circuit. 5. If using a non-vented mask or tracheostomy connector, attach a ResMed Leak Valve to the free end of the air tubing ensuring that the Leak Valve is as close as possible to the patient.

  • Page 43: Connecting A Single Limb Circuit For Invasive Use

    Connecting a single limb circuit for invasive use CAUTION Always set up the ResMed Leak Valve in the breathing circuit with the arrows and the symbol pointing in the direction of air flow from the Astral device to the patient.

  • Page 44: Connecting A Single Limb Circuit With Expiratory Valve

    Assembling patient circuits Connecting a single limb circuit with expiratory valve In a single limb circuit with expiratory valve, air pressure at the patient is monitored using the proximal pressure sensor line. To enable fast and accurate connection, use an Astral Quick Connect Single Limb Circuit. This custom accessory is designed specifically for use with Astral ventilators.
  • Page 45 Assembling patient circuits To connect a standard single limb valved circuit to the Astral: 1. Connect the Proximal pressure line to the upper connector of the Astral device single limb adapter. 2. Connect the PEEP control line to the lower connector of the Astral device single limb adapter.

  • Page 46: Connecting A Double Limb Circuit (Astral 150 Only)

    Assembling patient circuits Connecting a double limb circuit (Astral 150 only) A flow sensor within the Astral device measures exhaled air flowing through the expiratory valve integrated into the double limb circuit adapter. (This arrangement enables patient-exhaled tidal volume to be accurately measured and monitored). To connect a double limb circuit: 1.

  • Page 47: Changing The Circuit Selection

    Assembling patient circuits Changing the circuit selection To change the circuit selection on the Astral device: 1. From the Setup main menu, select Circuit. 2. Select Change Circuit Type. (The current circuit type will be shown in orange). 3. Select the circuit you want to change to which will be highlighted orange. You will be taken to the Learn Circuit screen.
  • Page 48 Assembling patient circuits The following table may assist in selecting suitable circuits and settings for different patient types Tidal volume range Recommended patient type Suitable circuit diameters setting 50 mL to 300 mL Pediatric 10 mm, 15 mm or 22 mm >...
  • Page 49 Assembling patient circuits The following icons are used to report the Learn Circuit results. Icon Description Learn Circuit has passed Caution! Circuit resistance is high. The device will use the learned circuit characteristics. Accuracy of control and monitoring may not be met. Ensure that ventilation and alarms are effective before proceeding further.

  • Page 50: Accessories

    Accessories Accessories For a full list of accessories, see the Ventilation accessories guide on www.resmed.com on the Products page under Service and Support. If you do not have internet access, please contact your ResMed representative. Attaching patient circuit accessories WARNING Adding or removing circuit components can adversely affect ventilation performance.

  • Page 51: Attaching A Heat Moisture Exchange (Hme)

    Accessories The image below shows proper use of a humidifier in combination with a double limb circuit. When using heated humidification with a double limb circuit, condensation may form in the expiratory flow sensor if the air is cooled to below its dew point. Condensation may also form in the patient circuit and is most likely to form at high humidity settings and low ambient temperatures.

  • Page 52: Attaching An Antibacterial Filter

    Accessories Do not connect patient interfaces prior to performing the Learn Circuit. Patient interfaces include any components placed after the single circuit's expiratory valve or exhalation port, or double limb circuit's 'Y' piece (eg. HMEF, catheter mount, mask, tracheostomy tube). Attaching an antibacterial filter WARNING Regularly check the antibacterial filter and expiratory valve for signs of moisture or...

  • Page 53: Adding Supplemental Oxygen

    Accessories Adding supplemental oxygen The Astral device is designed to be compatible with levels of supplemental oxygen up to 30 L/min. At a fixed rate of supplemental oxygen flow, the inhaled oxygen concentration will vary depending on the Ventilation mode and settings, patient breathing pattern, mask selection, and leak rate.
  • Page 54 Accessories To add supplemental oxygen: 1. Unlock the low flow oxygen inlet at the rear of the device by pushing up on the locking clip. 2. Insert one end of the oxygen supply tubing into the oxygen connector port. The tubing will automatically lock into place.

  • Page 55: Attaching A Nebulizer

    Accessories Attaching a nebulizer If required, a nebulizer can be used in conjunction with the Astral device. ResMed recommends Aerogen ® nebulizer products—designed to operate in-line with standard ventilator circuits and mechanical ventilators without changing ventilator parameters or interrupting ventilation.

  • Page 56: Attaching Other Accessories

    Accessories Attaching other accessories Attaching a pulse oximeter WARNING Only use compatible NONIN™ finger pulse sensors*. CAUTION Factors that may degrade pulse oximeter performance or affect the accuracy of the measurement include the following: excessive ambient light, excessive motion, electromagnetic interference, blood flow restrictors (arterial catheters, blood pressure cuffs, infusing lines, etc.), moisture in the sensor, improperly applied sensor, incorrect sensor type, poor pulse quality, venous pulsations, anemia or low haemoglobin concentrations, cardiogreen or other intravascular dyes, carboxyhaemoglobin,...

  • Page 57: Attaching A Remote Alarm

    Accessories Attaching a remote alarm The ResMed Remote Alarm II has been designed for use with Astral devices. The Remote Alarm II alerts you to an alarm that requires immediate attention. It triggers an audible and visual alarm when an alarm is triggered on the Astral device. For full instructions on using the Remote Alarm II, see the User Guide that comes with that device.

  • Page 58: Traveling With The Astral Device

    Astral carry bag to help security personnel understand the device and refer them to the following statement. ResMed confirms that the Astral device meets the Federal Aviation Administration (FAA) requirements (RTCA/DO-160, section 21, category M) for all phases of air travel.

  • Page 59: Power

    Ensure that the power cord does not pose a tripping or choking hazard. To connect to mains power: 1. Connect the DC plug of the supplied ResMed external power supply unit to the rear of the Astral device. 2. Before connecting the power cord to the ResMed power supply unit, ensure the end of the connector of the power cord is correctly aligned with the input socket on the power supply unit.

  • Page 60: Connecting To A Resmed Power Station (Rpsii)

    Do not twist its outer housing or pull on the cord. Connecting to a ResMed Power Station (RPSII) The RPSII provides the Astral device with electrical autonomy for eight hours of typical use. To use, connect the power cord of the RPSII to the DC inlet port on the device.

  • Page 61: Connecting The Astral External Battery

    Power Connecting the Astral External Battery The Astral External Battery has been designed specifically for use with the Astral Series of ventilators. It is intended to provide Astral ventilators with an additional eight hours of electrical autonomy during typical use.

  • Page 62: Using The Internal Battery

    Power WARNING Do not attempt to connect more than two external batteries. Battery specific messages and alarms on the Astral device will not operate for any additional units. Alarms and messages relating to the External Battery may occur from time to time. All message information will be displayed on the Astral user interface, and will be accompanied by an audible signal.

  • Page 63: Battery Run Time

    Power When the internal battery is being used to power the device, the amount of charge remaining in the battery is displayed in the information bar as shown in the following table. Display Description When the internal battery is in use, but the device is not ventilating, the battery charge level is displayed.

  • Page 64: Connecting To An External Dc Power Source

    Power Connecting to an external DC power source CAUTION When using a car auxiliary adapter, start the car before plugging in the device's DC adapter. If the external DC power source drops to below 11V, the Astral will switch to internal battery.

  • Page 65: Using The Astral Device For The First Time

    Using the Astral device for the first time Using the Astral device for the first time When using the Astral device for the first time, ResMed recommends you first perform a functional test. A functional test will ensure the device is in proper working order before starting therapy.

  • Page 66: Ventilation Modes

    Ventilation modes Ventilation modes Astral supports a variety of ventilation modes. Available modes will vary depending on the circuit type chosen. Mode settings can be accessed from Main Settings tab from the Settings menu. Note: Not all modes are available in all regions. Mode Circuit type Supplementary feature...

  • Page 67: (A)Cv Mode - Assisted Volume-Controlled Ventilation

    Ventilation modes (A)CV mode - Assisted volume-controlled ventilation (A)CV is a volume target ventilation mode delivering volume-controlled mandatory breaths: - Inspiration can either be initiated by the ventilator at a set respiratory rate (time-triggered breath) or the patient (spontaneous-triggered breath). A spontaneous breath re-schedules the next time-triggered breath.

  • Page 68: P(A)Cv Mode - Assisted Pressure-Controlled Ventilation

    Ventilation modes (A)CV breath pattern showing one patient triggered breath amongst time triggered breaths, with inspiratory duration defined by Ti. The patient-triggered breath re-schedules the next time- triggered breath. P(A)CV mode - Assisted pressure-controlled ventilation P(A)CV is a pressure target ventilation mode delivering pressure-controlled mandatory breaths: - Inspiration can either be initiated by the ventilator at a set respiratory rate (time-triggered breath) or the patient (spontaneous-triggered breath).
  • Page 69 Ventilation modes Parameter Setting Trigger type Flow / Pressure Available with double limb circuits only. Trigger When Trigger Type is set to Flow: Adult: Off, 0.5 to 15 [1.0] (L/min) Paed: Off, 0.5 to 15 [0.5] (L/min) When Trigger Type is set to Pressure: Off, Very Low to Very High [Medium] Supplementary features: Safety Vt (Tidal Volume)

  • Page 70: P-Simv - Pressure Synchronized Intermittent Mandatory Ventilation

    Ventilation modes P-SIMV - Pressure Synchronized Intermittent Mandatory Ventilation P-SIMV is a mixed ventilation mode delivering pressure-controlled mandatory breaths and pressure-supported spontaneous breaths. Mandatory breaths are delivered at a set frequency and spontaneous breaths are permitted between mandatory breaths. For mandatory breaths The inspiratory pressure support is set using P control and is initiated by either: - the ventilator at a set respiratory rate - the patient - if the patient effort is close enough to the next scheduled mandatory breath.
  • Page 71 Ventilation modes Parameter Setting When Trigger Type is set to Pressure: (double and single limb circuit) Off, Very Low to Very High [Medium] Rise Time (msec) Min, 150 to 900 [Min] Supplementary features: Apnea response Manual breath Spontaneous breaths are permitted between mandatory breaths as shown in the figure above. In order to promote synchrony with the patient's spontaneous efforts, mandatory breaths may be patient triggered.

  • Page 72: V-Simv - Volume Synchronized Intermittent Mandatory Ventilation

    Ventilation modes V-SIMV - Volume Synchronized Intermittent Mandatory Ventilation V-SIMV is a mixed ventilation mode delivering volume-controlled mandatory breaths and pressure-supported spontaneous breaths. Mandatory breaths are delivered at a set frequency and spontaneous breaths are permitted between mandatory breaths. For mandatory breaths The inspiratory volume is set using Vt and is initiated by either: - the ventilator at a set respiratory rate - the patient - if the patient effort is close enough to the next scheduled mandatory breath.
  • Page 73 Ventilation modes Parameter Setting PEEP (cm H Off, 3.0 to 20.0 [5.0] Trigger type Flow/Pressure Trigger When Trigger Type is set to Flow: (double limb circuit only) Adult: 0.5 to 15 [1.0] (L/min) Paed: 0.5 to 15 [0.5] (L/min) When Trigger Type is set to Pressure: (double and single limb circuit) Very Low to Very High [Medium] Rise Time (msec)

  • Page 74: Ps Mode - Pressure Support

    Ventilation modes PS mode - Pressure support PS is a pressure target ventilation mode delivering pressure-supported spontaneous breaths: - Inspiration is either initiated by the ventilator at a set rate (time-triggered breath), or the patient (spontaneous-triggered breath). Spontaneous-triggered breaths re-schedule the next time-triggered breath.
  • Page 75 Ventilation modes This graph shows PS mode with Resp. rate enabled with a transition from spontaneous- triggered to time-triggered breaths. Cycling is constrained within the limits of Ti Min and Ti Max. To allow the patient sufficient time to exhale, Ti cannot exceed two-thirds of the breath period.

  • Page 76: (S)T Mode - Spontaneous Ventilation With Backup Rate

    Ventilation modes (S)T mode - Spontaneous Ventilation with backup rate (S)T is a bilevel ventilation mode delivering pressure-supported spontaneous breaths: - Inspiration is either initiated by the ventilator at a set rate (time-triggered breath) or the patient (spontaneous-triggered breath). Spontaneous-triggered breaths re-schedule the next time-triggered breath.

  • Page 77: P(A)C Mode

    Ventilation modes P(A)C mode P(A)C is a bilevel ventilation mode delivering pressure-controlled mandatory breaths: - Inspiration is either initiated by the ventilator at a set rate (time-triggered breath) or the patient (spontaneous-triggered breath). Spontaneous-triggered breaths re-schedule the next time-triggered breath. Resp. rate and Trigger can be set to Off, but not at the same time.

  • Page 78: Cpap Mode

    Ventilation modes CPAP mode CPAP mode delivers a constant level of pressure during inspiration and expiration. With CPAP administered via a valved breathing system, the inspiratory triggering level is settable to optimize the control of the exhalation valve and minimize the patient's work of breathing.
  • Page 79 Ventilation modes CPAP operation with a single limb circuit with intentional leak is displayed. English...

  • Page 80: Flow Shape Settings

    Ventilation modes Flow shape settings The Astral device supports four flow shape settings: 1. 100% (Constant) 2. 75% 3. 50% 4. 25% The figure illustrates how Flow Shape affects breath delivery for a fixed volume. With volume breath option set to PIF (Peak Inspiratory Flow), adjusting the flow shape alters the inspiratory duration, whereas with volume breath option set to Ti (Inspiratory time), adjusting the flow shape alters the Peak Inspiratory Flow.

  • Page 81: Interdependence Of Controls

    Ventilation modes Interdependence of controls Dynamic settings limits The adjustable range of one setting may be restricted by the value of another. When a dynamic limit of this kind is reached, a message describing the limitation (interdependence) is displayed on the Information bar and the Apply button is disabled. To enable the Apply button, modify one of the conflicting settings.

  • Page 82: Triggering And Cycling

    Ventilation modes When making adjustments to the high pressure alarm limit, you are prompted to confirm the changes to any affected settings. If these setting changes are not accepted, the change to the high pressure alarm limit is not applied. Triggering and cycling The Astral device has adjustable trigger and cycle sensitivities to provide optimal synchrony between the patient and the device and to minimize work of breathing.

  • Page 83: Triggering With Intentional Leak Circuits

    Triggering with intentional leak circuits When using a circuit with intentional leak, estimation of the patient respiratory flow is enhanced by ResMed's automatic leak management feature—Vsync. Vsync technology allows the device to estimate the patient respiratory flow in the presence of unintentional leak.

  • Page 84: Triggering With Valve Circuits

    Ventilation modes Triggering with valve circuits When using single or double limb valve circuits, the Astral device uses ResMed's NIV+ trigger sensitivity technology. Unlike simple conventional triggering which only considers the magnitude of the pressure change, NIV+ also considers the shape of the pressure waveform to significantly improve trigger sensitivity.

  • Page 85: Changing The Trigger Type

    Ventilation modes Changing the Trigger Type For double limb circuits, changing Trigger type can be done while the device is ventilating or in Standby. To change between pressure and flow trigger types on double circuits: 1. From the Setup menu, select Circuit. 2.

  • Page 86: Cycling With Valve Circuits

    Ventilation modes Cycling with valve circuits Cycling in the Astral device is based on flow and can be set to automatic or manual. Automatic cycling adjustment Allows for the duration of the inspiratory phase (Ti) to vary from one breath to another, according to the characteristics of the patient's spontaneous breathing.

  • Page 87: Supplementary Features

    Supplementary features Supplementary features Manual breath settings Manual breath feature allows the user to manually insert a breath within the currently delivered breathing pattern. The Manual breath feature is used to trigger manual breath(s) and can be pressed at any time. If pressed during expiration, the manual breath will be delivered immediately.
  • Page 88 Supplementary features For pressure-assisted spontaneous breaths only the PS is magnified. For volume-controlled mandatory breaths, the volume is magnified by firstly flattening the flow shape, then by extending the Ti and finally by increasing the PIF. This applies to mandatory breaths in (A)CV and V-SIMV modes.

  • Page 89: Sigh Settings

    Supplementary features Sigh settings The Sigh breath feature allows the user to program the delivery of a 'sigh breath' at a regular interval (sigh interval) within the currently delivered breathing pattern. The sigh breath is a magnified version of the primary breath (Magnification factor set from 120 to 250%).

  • Page 90: Apnea Settings

    When Alarm + apnea ventilation ((A)CV or P(A)CV) is selected, apnea ventilation is automatically triggered following the detection of an apnea event. Apnea ventilation is displayed on the Information bar. ResMed recommends that Apnea ventilation is enabled whenever the Resp. rate is set to Off. Control settings for Apnea ventilation Parameter...

  • Page 91: (A)Cv Breath Pattern

    Supplementary features (A)CV Breath pattern Parameter Setting Vt (mL) Adult: 100 to 2,500 [500] Paed: 50 to 300 [100]* Ti (sec) When Volume Breath option is set to Ti: Adult: 0.3 to 3.0 [1.0] Paed: 0.3 to 3.0 [0.6] PIF (L/min) When Volume Breath option is set to PIF: Adult: 10 to 120 [50] Paed: 5 to 60 [10]...

  • Page 92: Safety Volume Settings

    Supplementary features Safety volume settings Astral's Safety Volume feature is an optional adaptive control mechanism that provides volume assurance to pressure modes (P(A)CV and PS only). It combines the benefits of pressure- targeted ventilation with the assurance of a volume target. It can be used to defend against hypoventilation in the event of reduced lung compliance or to defend against ventilator-induced lung injury or over-ventilation in the event of compliance improving over time.

  • Page 93: Mouthpiece Settings

    The following settings are recommended for mouthpiece ventilation on the Astral device: Setting Description Detail / explanation Interface ResMed 15mm Non-vented mouthpiece with catheter mount. Circuit Single limb circuit with valve. Ventilation mode (A)CV...
  • Page 94 Supplementary features Mouthpiece Setup 1 The following settings are appropriate for patients requiring secure ventilation protected by an apnea alarm. In this case, the patient is required to take spontaneous breaths. Setting Range Detail / explanation Resp. rate This prevents time breaths when the mouthpiece is not in the patient's mouth.

  • Page 95: Alarms

    Alarms Alarms The Astral device activates alarms to alert you to conditions that require attention to ensure patient safety. 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. Indicator Description Alarm display...

  • Page 96: Alarm Priority

    Alarms 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.
  • Page 97 Alarms The following list of alarms is ordered by relative importance within priority. Adjustable alarms can be changed to suit therapy and care requirements. High priority alarms Medium priority alarms Low priority alarms Total power failure ** High Pressure* Power disconnected Low Pressure* Low PEEP* Using internal battery...

  • Page 98: Viewing The Active Alarms

    Alarms Viewing the active alarms in the Alarm display indicates that there are multiple active alarms. Although multiple alarms can be active simultaneously, the Alarm display only shows the highest priority alarm. The full set of active alarms is displayed in the Active alarms screen. When the highest priority alarm is cleared, the next highest priority alarm displays in the Alarm display.

  • Page 99: Resetting Alarms

    Alarms To silence alarms before they activate: 1. Press . Alarm mute is active for two minutes. During that period, is displayed on the Information bar and flashes. 2. To cancel Alarm mute, press the flashing again. Resetting alarms The following alarms cannot be manually reset. For these alarms you must correct the cause of the alarm.

  • Page 100: Adjusting Alarm Settings

    Alarms To reset all active alarms: 1. Press the Alarm display on the Information bar. The Active alarms screen is displayed. 2. Press Reset all to reset multiple alarms. Only those alarms that can be reset, will be reset. Any remaining alarms will require user intervention and correction. 3.
  • Page 101 Alarms 4. Increase or decrease the alarm setting as required. 5. To adjust other alarm settings, select the desired settings and repeat this process. All settings that have been adjusted are displayed with an orange outline. 6. When no further adjustments are required, press Apply. Note: If a change to the High Pressure alarm setting conflicts with one or more ventilation parameter settings, a confirmation screen is displayed providing a summary of the revised ventilation parameter settings.

  • Page 102: Testing The Alarm Sounders And Indicators

    Alarms Testing the alarm sounders and indicators To confirm the alarm will sound as intended, regularly test the alarm. The Astral device incorporates two alarm sounders. During an alarm condition both sounders are operated in parallel. To confirm the correct operation of each sounder, regularly perform the Alarm test function.

  • Page 103: Testing The Remote Alarm

    Alarms Testing the Remote Alarm The Remote Alarm generates an audible and visual signal when an alarm is triggered on the ventilator. CAUTION A test of the Remote Alarm should be performed prior to initial use and every change of battery.

  • Page 104: Testing The Alarms

    Testing the alarms Testing the alarms WARNING Do not perform alarm tests while the patient is connected to the ventilator. This section describes functional tests to confirm correct technical operation of Astral alarms. The efficacy of therapy alarm limits should be assessed clinically. It is recommended that alarms be tested individually.

  • Page 105: Testing The Pressure Alarms

    Testing the alarms Testing the pressure alarms All pressure alarm tests are conducted using a test lung, single limb circuit and in (A)CV mode. Alarm Test procedure 1. Start ventilation. High Pressure 2. Record the peak inspiratory pressure (PIP). 3. Set the Pressure alarm limit to less than PIP. 1.

  • Page 106: Testing The Oximetry Alarms

    Testing the alarms Testing the oximetry alarms To test oximetry alarms attach a pulse oximeter to the Astral device and connect the sensor to a person. Alarm Test procedure Low SpO Set the alarm limit to 99%. High SpO Set the alarm limit below the current SpO measure.

  • Page 107: Alarm Settings And Conditions

    Alarm settings and conditions Alarm settings and conditions This section details the alarms and their activation conditions. If the alarm has adjustable settings these are described. Unless otherwise noted, alarms are applicable to all modes. Values provided within [square brackets] are the default settings. As soon as the activation condition is met, the Astral device provides both audible and visual alerts without delay.

  • Page 108: Minute Volume Alarms

    Alarm settings and conditions Minute volume alarms Minute volume alarms activate when the monitored minute volume parameter (MVi or MVe) exceeds the MV alarm setting (no delay). Minute volume alarms will not activate during the first 60 seconds of ventilation. Minute volume alarms may be used to detect: change in patient lung condition leak or obstruction in patient circuit or valve.

  • Page 109: Pressure Alarms

    Alarm settings and conditions Pressure alarms Pressure alarms include: High Pressure Obstruction / High Pressure Low Pressure PEEP. High pressure When a high inspiratory pressure is detected, the Astral device immediately cycles to the expiratory phase and an information message is displayed. Sustained high pressure will result in the following alarms.

  • Page 110: Low Pressure

    Alarm settings and conditions Alarm Activates when Alarm setting (cm H Obstruction / Monitored airway pressure during exhalation is 10 to 55 [40] High Pressure greater than the Pressure alarm limit. The monitored airway pressure during exhalation exceeds the obstruction limit* and does not reduce by at least 1 cm H O per second.

  • Page 111: Peep

    Alarm settings and conditions PEEP PEEP alarms activate when the monitored positive expiratory end pressure parameter (PEEP) exceeds the corresponding alarm setting. When ventilation starts, or after a PEEP setting change, PEEP alarms are temporarily disabled until: the monitored PEEP is within 2 cm H O of the PEEP setting for three consecutive breaths, 30 seconds has passed.

  • Page 112: Flow Sensor Not Calibrated

    Alarm settings and conditions Flow sensor not calibrated Alarm Activates when Alarm setting Flow sensor not The expiratory flow sensor is not calibrated. A Learn Circuit should be performed. calibrated (double limb) Circuit configuration alarms Alarm Activates when Alarm setting Incorrect circuit The circuit connected to the ventilator differs from the circuit type setting.

  • Page 113: Spo2

    Alarm settings and conditions SpO2 Oxygen saturation alarms activate when the monitored SpO parameter exceeds the corresponding alarm setting (no delay). Alarm Activates when Alarm setting (SpO Low SpO Saturation of peripheral oxygen is less than the low SpO Off, 50 to 99 [85] setting as measured by the pulse oximeter.

  • Page 114: Power Alarms

    Alarm settings and conditions Power alarms Power alarms are not adjustable. CAUTION Data cannot be saved while there is a Critically low internal battery or Battery inoperable alarm. Program selections made while these alarms are active may be lost if the device is restarted.

  • Page 115: Detecting Circuit Disconnection And De-Cannulation

    Detecting circuit disconnection and de-cannulation Detecting circuit disconnection and de-cannulation Inadvertent disconnection of a circuit component or accidental removal of a cannula poses a hazard to a dependent patient. Unfortunately, no single alarm can reliably detect such an event due to the number of possible combinations of therapy settings, circuit configurations and patient interfaces.
  • Page 116 Detecting circuit disconnection and de-cannulation The most difficult disconnection to detect is a patient interface (eg, cannula, mask or mouthpiece) being disconnected from the patient. To test that alarms activate in the case of circuit disconnection: 1. With the breathing circuit configuration in place, start ventilating the patient then wait for a few cycles for ventilation to stabilise.

  • Page 117: Data Management Process

    Information bar alerts you to a failed transfer. WARNING Only connect devices specially designed and recommended by ResMed to the data communication ports. Connecting other devices could result in patient injury, or damage to the Astral device.
  • Page 118 Data management process To transfer data: 1. From the Settings menu select Patient Data from the Data Transfer sub-menu. 2. Press Save >. When the transfer is complete a status message is displayed. 3. Press Clear to acknowledge you have read the message and enable further transfers. 4.

  • Page 119: Data Management Summary

    Data management process Data management summary The table below summarises the data available for use in ResScan. Detailed data Summary data , Median, 95 Logged for the last 7 days Logged for the last 365 days Pressure 25 Hz Flow 25 Hz Volume 25 Hz...

  • Page 120: Cleaning And Maintenance

    The Astral device can be cleaned using an anti-bacterial solution on a clean, non-dyed disposable cloth. After replacing any accessory in the patient circuit, ResMed recommends you perform a Learn Circuit.

  • Page 121: Multi-Patient Use

    Cleaning and maintenance Multi-patient use WARNING To prevent the risk of cross-contamination, an antibacterial filter, placed on the inspiratory port is mandatory if the device is to be used on multiple patients as under some fault conditions, expired gas may be returned through the inspiratory port. The expiratory module, internal antibacterial filter, expiratory flow sensor and cushion come into contact with exhaled gases but do not form part of the inspiratory pathway.

  • Page 122: Replacing Components

    Cleaning and maintenance Replacing components Replacing the air filter Inspect the condition of the air filter and check whether it is blocked by dirt or dust. With normal use, the air filter needs to be replaced every six months (or more often in a dusty environment). CAUTION Do not wash the air filter.

  • Page 123: Replacing The Expiratory Flow Sensor And Antibacterial Filter (Astral 150 Only)

    Cleaning and maintenance Replacing the expiratory flow sensor and antibacterial filter (Astral 150 only) CAUTION Regularly check the double limb adapter (expiratory valve) for moisture and contaminants. Particular care should be taken when using nebulizers or humidifiers. When replacing the expiratory flow sensor and antibacterial filter also replace the adapter cushion and adapter.

  • Page 124: Replacing The Double Limb Adapter (Expiratory Valve)

    Cleaning and maintenance CAUTION Following the replacement of the Expiratory flow sensor, you must run a Learn Circuit to calibrate the new sensor and ensure accurate therapy and monitoring. To calibrate the Expiratory flow sensor, connect a double limb circuit. Prior to performing the Learn Circuit, ensure double circuit is selected on the Circuit sub-menu.

  • Page 125: Replacing The Internal Battery

    As the battery ages, the available capacity decreases. When the remaining battery capacity is low, do not rely on the internal battery as the primary power supply. Only recharge the internal battery inside the device or by using a ResMed approved charger. Avoid hard, physical impact on the device.

  • Page 126: Servicing

    ResMed Service Center. Maintenance Timetable The Astral device should be serviced by an authorized ResMed Service Center according to the following schedule. The Astral device is intended to provide safe and reliable operation provided that it is operated and maintained in accordance with the instructions provided by ResMed. As with all electrical devices, if any irregularity becomes apparent, you should exercise caution and have the device inspected by an authorized ResMed Service Center.

  • Page 127: Device Information

    Mask Masks should be reprocessed or replaced between patients. Cleaning, disinfection and sterilisation instructions are available from the ResMed website, www.resmed.com/masks/sterilization. If you do not have internet access, please contact your ResMed representative. Patient circuits Follow the protocol of the hospital/healthcare facility and the recommendations of the manufacturer.

  • Page 128: Technical Specifications

    Technical specifications Technical specifications Operating pressure range Single limb with valve or double limb with valve: Expiratory: 3 hPa Inspiratory: 50 hPa Single limb with intentional leak: Expiratory: 2 hPa Inspiratory: 50 hPa CPAP: 3 to 20 hPa Maximum working pressure limit: 10 to 55 hPa Forced cycling occurs if the Pressure alarm limit is exceeded.
  • Page 129 Technical specifications Expiratory cycle (nominal) characteristics Cycle occurs when inspiratory flow declines to the set percentage of peak inspiratory flow. Single limb with valve or double limb with valve: 5 to 90% Single limb with intentional leak: 8 to 50% (in five steps) Sound pressure level 35 ±...
  • Page 130 Aviation Administration (FAA) requirements of RTCA/DO-160 can be used during all phases of air travel without further testing or approval by the airline operator. ResMed confirms that the Astral meets the Federal Aviation Administration (FAA) requirements (RTCA/DO-160, section 21, category M) for all phases of air travel.
  • Page 131 The Astral device has three data connection ports (USB connector, mini USB connector, and Ethernet port). Only the USB connector is for customer use. The USB connector is compatible with the ResMed USB stick. Recommended patient circuit components Refer to www.resmed.com.

  • Page 132: Monitoring

    Technical specifications Pneumatic flow path Monitoring This section specifies the monitored parameters of the Astral device. Monitored therapy parameters are only displayed during ventilation. Other parameters (eg, battery charge level and oximetry data) are monitored even when not ventilating. The Astral device monitors the following parameters: Time parameters Parameter Updates...

  • Page 133: Volume And Flow Parameters

    Technical specifications Volume and flow parameters Parameter Updates Units Range Resolution Accuracy Flow Continuous L/min -250 to +250 ±1 L/min or 10% whichever is greater End of 0 to 3000 10 mL or 10%, inhalation whichever is greater End of breath 0 to 3000 For double limb circuit:...

  • Page 134: Other Parameters

    Technical specifications Other parameters Parameter Updates Units Range Resolution Accuracy RSBI End of breath 1/min-L 0 to 999 % Spont. Trig. Start of 0 to 100 inhalation % Spont. Cyc. End of 0 to 100 inhalation Measured Battery Time Once per HH:MM 1 min minute...

  • Page 135: Accuracy Of Controls

    Technical specifications Notes: All flows and volumes are measured at BTPS conditions. To achieve specified accuracies, a successful Learn Circuit must be performed prior to measurement testing. Specified accuracies exclude mask compliance. Pressure may be displayed in cm H O, hPa or mbar. The conversion factor of the pressure units is 1.
  • Page 136 Technical specifications Parameter Range Resolution Accuracy Inspiratory Pressure Trigger (A)CV, P(A)CV: Off, Very Low to Very High PS, P-SIMV, V-SIMV, CPAP: Very Low to Very High Trigger sensitivity – Vented (S)T, P(A)C: Very Low to Very High, Off CPAP: Very Low to Very High Rise Time Min, 150 to 900 msec 50 ms...

  • Page 137: Measurement System And Accuracy

    Technical specifications Parameter Range Resolution Accuracy Apnea P control When Apnea Response is 0.2 hPa P(A)CV + Alarm: ±(0.5 hPa+ 5% of target) 2 to 50 hPa Manual Breath Magnitude 100 to 250% Sigh Interval 3 to 60 min 1 min Sigh Magnitude 120 to 250% * The International ventilator standard indicates that Pediatric patient type is intended to be used for a patient...

  • Page 138: Functional Variants

    Medical electrical equipment needs special precautions regarding EMC and needs to be installed and put into service according to EMC information provided in this document. This declaration currently applies for the following ResMed devices: Astral™ Series of Ventilators. Guidance and manufacturer’s declaration—electromagnetic emissions These devices are intended for use in the electromagnetic environment specified below.

  • Page 139: Guidance And Manufacturer's Declaration - Electromagnetic Immunity

    Technical specifications WARNING The device should not be used adjacent to or stacked with other equipment. If adjacent or stacked use is necessary, the device should be observed to verify normal operation in the configuration in which it will be used. The use of accessories other than those specified for the device is not recommended.
  • Page 140 Technical specifications Immunity test IEC60601-1-2 test Compliance level Electromagnetic environment—guidance level Conducted RF 3 Vrms 3 Vrms Portable and mobile RF communications equipment IEC 61000-4-6 150 kHz to 80 MHz 150 kHz to 80 MHz should be used no closer to any part of the device, including cables, than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter.

  • Page 141: Recommended Separation Distances Between Portable And Mobile Rf Communications Equipment And The Device

    Technical specifications Recommended separation distances between portable and mobile RF communications equipment and the device These devices are intended for use in an environment in which radiated RF disturbances are controlled. The customer or the user of the device can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the device as recommended below, according to the maximum output power of the communications equipment.

  • Page 142: Symbols

    If you need information on these disposal systems, please contact your local waste administration. The crossed-bin symbol invites you to use these disposal systems. If you require information on collection and disposal of your ResMed device please contact your ResMed office, local distributor or go to www.resmed.com/environment.

  • Page 143: Standards Compliance

    ISO 10651-6 Lung ventilators for medical use - Particular requirements for basic safety and essential performance - Part 6: Home care ventilatory support devices. Training and support Training and support materials are available from the ResMed website, www.resmed/astral/support. If you do not have internet access, please contact your ResMed representative. English...

  • Page 144: Alarm Troubleshooting

    Alarm troubleshooting If there is a problem, try the following suggestions. If the problem cannot be solved, contact your care provider or ResMed. The most common reason for an alarm to sound is because the system has not been properly assembled or a Learn Circuit has not been correctly performed for each program.
  • Page 145 Alarm troubleshooting Alarm message Action 1. Check the patient's status. High Leak 2. Inspect the circuit, expiratory valve and proximal lines for leak. When in use, check for leaks around the mask. 3. When using vented therapy, check the mask type setting. 4.
  • Page 146 Alarm troubleshooting Alarm message Action 1. Check the patient's status. High Vti 2. Inspect the circuit and expiratory module for leaks. 3. Verify that therapy and alarm settings are appropriate. 4. Perform a Learn Circuit. 1. Check that the circuit is correctly connected and matches the circuit Incorrect circuit type selected.
  • Page 147 1. Check all connections between the ventilator and external battery. Power fault / no charging 2. Check connection to mains power (if present). If problem persists, contact your ResMed Service Center. Power disconnected If intending to use external power: 1. Check the power cable connection between the mains or battery, the power supply pack and the device.
  • Page 148 Alarm troubleshooting Alarm message Action 1. Check the patient's status and airway. Total power failure 2. Connect the device to AC mains. 3. Check the battery charge level of the internal and external (if applicable) battery. The total power failure alarm can only be silenced by connecting the device to AC mains power.

  • Page 149: General Troubleshooting

    Alarm troubleshooting General troubleshooting Issue Action Condensation forming in circuit Condensation may form due to high humidity settings and low ambient temperatures. Adjust humidifier settings in accordance with manufacturer's instructions. Touch screen damaged or non- If you are unable to power off the Astral device normally, use the following forced responsive shutdown procedure: 1.

  • Page 150: Recommendations For Suctioning

    Recommendations for suctioning Recommendations for suctioning Suctioning involves application of negative pressure (vacuum) to the airway through a catheter tube to remove airway secretions causing airway obstruction. Astral supports two methods of suctioning based on the selection of catheter open and closed.

  • Page 151: Limited Warranty

    Portable diagnostic/screening devices This warranty is only available to the initial consumer. It is not transferable. If the product fails under conditions of normal use, ResMed will repair or replace, at its option, the defective product or any of its components.

  • Page 152: Appendix A: Definitions

    Appendix A: Definitions Appendix A: Definitions Ventilation settings definitions The available settings will vary with the selection of the ventilation mode. Each mode details the settings available. Setting Definition Apnea Definition Apnea Definition sets the type of breath which must be delayed for an apnea to be detected.
  • Page 153 Appendix A: Definitions Setting Definition PS Max Maximum Allowed Pressure Support (PS Max) sets the maximum pressure support above PEEP allowed to achieve the target safety tidal volume. P control Pressure control (P control) sets the pressure support above PEEP to be delivered during inspiration for pressure assisted breaths.

  • Page 154: Measured And Calculated Parameter Definitions

    Appendix A: Definitions Measured and calculated parameter definitions The following measured and calculated parameters are displayed during configuration or during ventilation. Each Ventilation mode details the parameters displayed. Parameter Definition Average of percentage of Oxygen delivered to circuit. I:E is the ratio of the inspiratory period to the expiratory period. The measured I:E ratio is displayed as a monitored parameter during ventilation.
  • Page 155 Appendix A: Definitions Parameter Definition Pulse rate The measured Pulse rate (pulse) is displayed as a monitored parameter when a pulse oximeter is used. Resp. rate Respiratory rate (Resp. rate) is the number of breaths per minute averaged over the last eight breaths. The measured Resp.

  • Page 156: Appendix B: Ventilation Parameters

    Appendix B: Ventilation parameters Appendix B: Ventilation parameters Ventilation Parameters summary table The following table provides a summary of the Astral device parameter ranges and the [default settings]. Adjustable Valve Ventilation Leak Setting Parameters Ventilation Respiratory rate (A)CV, P(A)CV, P(A)C Adult: Off, 2 to 50 [15] Paed: Off, 5 to 80 [15] Mandatory breaths: V-SIMV, P-SIMV...
  • Page 157 Appendix B: Ventilation parameters Adjustable Valve Ventilation Leak Setting Parameters Ventilation V-SIMV (mandatory breaths), (A)CV (mL) Adult: 100 to 2,500 [500] Paed: 50 to 300 [100]* When Volume Breath option is set to PIF: (L/min) (A)CV, V-SIMV (mandatory breaths) Adult: 10 to 120 [50] Paed: 5 to 60 [10] When Volume Breath option is set to (sec)
  • Page 158 Appendix B: Ventilation parameters Adjustable Valve Ventilation Leak Setting Parameters Ventilation Trigger (sensitivity) When Trigger Type is set to Pressure [Trigger type = trigger Pressure] (double and single limb circuit) (A)CV, P(A)CV Off, 1, 2, 3, 4, 5 [3] PS, P-SIMV, V-SIMV, CPAP 1, 2, 3, 4, 5 [3] Trigger (sensitivity) (S)T, P(A)C...

  • Page 159: Ventilation Displayed Parameters

    Appendix B: Ventilation parameters Adjustable Valve Ventilation Leak Setting Parameters Ventilation Cycle Sensitivity Very Low to Very High [Medium] Cycle Sensitivity is fixed at Very High for CPAP (leak). * The International ventilator standard indicates that Pediatric patient type is intended to be used for a patient receiving less than 300 mL, however Astral permits adjustment of ‘Vt’...

  • Page 160: Supplementary Features

    Appendix B: Ventilation parameters Supplementary Features The following table indicates the supplementary features applicable to each ventilation mode. The adjustable parameters, the available setting range and default are displayed. Features Valve Ventilation Leak Setting Ventilation Manual Breath Off / On [Off] Manual Breath 100 to 250 [150] Magnitude...
  • Page 161 Appendix B: Ventilation parameters Features Valve Ventilation Leak Setting Ventilation Apnea Ti When Volume Breath option is set to (sec) If Apnea Response is (A)CV + Alarm: Adult: 0.3 to 3 [1.0] Paed: 0.3 to 3 [0.6] If Apnea Response is P(A)CV + Alarm: Adult: 0.2 to 5.0 [1.0] Paed: 0.2 to 5.0 [0.6]...

  • Page 162: Supplementary Features Displayed Parameters

    Appendix B: Ventilation parameters Supplementary Features displayed parameters The following therapy parameters are displayed on the device but cannot be changed directly. They are determined by the adjustable parameters and internal algorithms. Features Valve Ventilation Leak Ventilation Manual Breath Ti (sec) Manual Breath PIF (L/min)
  • Page 163 Appendix B: Ventilation parameters Features Valve Ventilation Leak Ventilation Apnea PIF Display (L/min) Apnea Ti Display (Inspiration Time) Apnea Rise Time (sec) English...

  • Page 164: Appendix C: Alarm Parameters

    Appendix C: Alarm parameters Appendix C: Alarm parameters Alarm Parameters summary table The following table provides a summary of the Astral device alarm settings and the [default settings]. Alarm Valve Ventilation Leak Setting Ventilation Vt - Low Adult: Off, 50 to 2990 [100] (Tidal Volume) Paed: Off, 10 to 995 [25] (mL)
  • Page 165 Appendix C: Alarm parameters Alarm Valve Ventilation Leak Setting Ventilation Low PEEP Off / On [On] Vent Stopped Off / On [Off] Leak Off, 20 to 80 [Off] (double limb circuit with expiratory valve) Leak Off / 5 to 80 [40] NV mask Off / On [On] - Low...
  • Page 166 278007 Astral 100_150_CG_cover_AMER_Eng_Spine.indd 4 16/06/2014 2:07:43 PM...
  • Page 168 Bella Vista NSW 2153 Australia San Diego CA 92123 USA of Gründler GmbH, a member of the ResMed Group. CaviCide is a trademark of Metrex. Mikrozid ResMed (UK) Ltd 96 Jubilee Ave is a trademark of Schülke & Mayr. Velcro is a trademark of Velcro Industries B.V.

Table of Contents

Save PDF