Laryngeal mask airways and their manufacture

摘要

The mask 13 of a laryngeal mask assembly has a mount 20 and an integral cuff 21 at the patient end 14 of a tube 1. The mount 20 is of a thermoplastic material and the cuff 21 is made by blow moulding from the material of the mount. A separate retaining plate 30 seals an edge of the cuff 21 with the mount 20 and traps an inflation tube 34 extending from the cuff to the inflation line 2 of the tube 1.