LMA Supreme is a single use, second generation, gastric access device which forms an effective First Seal with the oropharynx (oropharyngeal seal) and an innovative Second Seal with the upper oesophageal sphincter (the oesophageal seal).
The importance of the Second Seal (oesophageal seal) is significant: it can minimise gastric insufflation and reduce the risk of aspiration, giving you the confidence to go further with a laryngeal mask airway.