Masks and their manufacture

摘要

A mask 2, 50 such as a laryngeal mask or face mask, has a soft annular cuff 21, 52 on a more rigid mount 20, 51 of funnel shape. The cuff 21 and mount 20 are moulded together by rotational moulding or the mount 51 is preformed and the cuff 52 is moulded onto the mount in a rotational mould 60.