Re-usable up to 40 times.
Aperture bars designed to prevent the blockage of the airway by the epiglottis.
Facilitates smooth emergence from anaesthesia.
Minimal haemodynamic response.
Advantages:
Increased speed and ease of placement by inexperienced personnel;
Increased speed of placement by anaesthetists;
Improved haemodynamic stability at induction and during emergence;
Minimal increase in intraocular pressure following insertion;
Reduced anaesthetic requirements for airway tolerance;
Lower frequency of coughing during emergence;
Improved oxygen saturation during emergence;
Lower incidence of sore throat in adults.s.