Technical specifications
76
The Astral device has three data connection ports (USB connector, mini
USB connector, and Ethernet port). Only the USB and mini-USB connectors
are for customer use.
The USB connector is compatible with the ResMed USB stick.
Recommended patient circuit
components and compatible
accessories
Refer to www.resmed.com/astral/circuits.
IEC 60601-1 classifications
Class II double insulation
Type BF
Continuous operation
Suitable for use with oxygen.
Patient interface (Mask, endotracheal tube, tracheostomy tube or
mouthpiece).
Oximeter.
The patient, carer or clinician is an intended operator of the Astral device.
Some functions and settings can only be adjusted by the clinician (in
Clinical Mode). These functions are disabled / locked from use in Patient
mode.
The device is designed to be operated within arm's length. An operator
should position their line of sight within an angle of 30 degrees from a
plane perpendicular to the screen.
The Astral device complies with IEC 60601-1 legibility requirements.
Software release compatibility
For information on your device software version, contact your ResMed
representative.
This device is not suitable for use in the presence of a flammable anaesthetic mixture.
1
The International ventilator standard indicates that Paediatric patient type is intended to be used for a patient receiving less
than 300 mL, however Astral permits adjustment of ‘Vt’ setting parameter up to 500 mL for cases where ‘Vt’ is set such that it
compensates for leak in the breathing circuit.
WARNING
ResMed does not recommend 500 mL as the upper limit for the paediatric tidal volume use;
however, clinicians may choose this upper limit based on their clinical determination.
2
To achieve specified accuracies, a successful Learn Circuit must be performed.
3
Limits are the sum of device and circuit impedance under single fault leading to device shutdown.
4
Individual configurations may be more sensitive.
5
The life of oxygen cells is described by hours used multiplied by the % of oxygen used. For example, 1 000 000 % hours oxygen
cell will last for 20 000 hours at 50% FiO
2
(20 000 x 50 = 1 000 000) or 40 000 hours at 25% FiO
2
(40 000 x 25 - 1 000 000). Astral's
oxygen cell will last for 25,000 hours (1041 days) at 40% FiO
2
6
Information regarding the electromagnetic emissions and immunity of this ResMed device can be found on
www.resmed.com/downloads/devices.
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