- Eight sizes, from neonate to adult
- Re-usable up to 40 times.
- Aperture bars designed to prevent the blockage of the airway by the epiglottis13
- Soft, silicone cuff
- Facilitates smooth emergence from anaesthesia7
- Minimal haemodynamic response7
- Part of the American Society of Anesthesiologists difficult airway algorithm
Advantages over the TT included: 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; and lower incidence of sore throat in adults