10
3.1. Materials
The Ambu® Aura40 is 100 % latex free. The materials used for the product and packaging are:
Part
Material
Airway connector
Polysulphone
/
Tube/Cuff
Silicone
Inflation Valve
Polyester/Polypropylene/Nitrile/Stainless steel
/
Pilot balloon/Manual vent
Silicone
Pilot tube
Silicone
Packaging - Pouch
Tyvek/PET/PE
Table 2. Material used for the Ambu® Aura40
See figure
Ambu® Aura40
4. Principles of operation
The mask is designed to conform to the contours of the hypopharynx with its lumen facing the
laryngeal opening. When correctly inserted, the distal tip of the cuff rests against the upper
oesophageal sphincter.
The Ambu® Aura40 comes in eight different sizes for use in patients of different weight. See table
1 for selection guidelines and max. inflation volumes. Please note that the cuff inflation volumes
shown in table 1 are maximum volumes. Applying the stated maximum inflation volume may
respond to a cuff pressure above the maximum of 60 cmH₂O. It is recommended to continuously
monitor the cuff pressure.
See figure
. Correct position of the Ambu® Aura40 in relation to anatomical landmarks.
Anatomical Landmarks
Aura40
A – Esophagus
G – Hyoid Bone
1 – Patient end
B – Trachea
H – Tongue
2 – Size marking
C – Cricoid ring
I – Buccal cavity
3 – Ventilatory opening
D – Thyroid cartilage
J – Nasopharynx
4 – Ventilatory pathway
E – Laryngeal inlet
K – Incisors
5 – Normal depth of insertion marks
F – Epiglottis
6 – Machine end
Table 3. Description of anatomical landmarks and Ambu® Aura40 parts
