Patent ID: 7694682
Filing Date: 2010-04-13
Classification: A61M

Abstract:
1. A method of manufacturing a laryngeal mask comprising an airway tube having a lumen and a mask portion, said mask portion comprising an inflatable cuff and an intermediary portion forming a transition from said airway tube to said inflatable cuff, said process comprising injection moulding of the airway tube, the intermediary portion and a cuff having an annularly extending opening between a second peripheral edge of said cuff and said intermediary portion integrally in a closed mould part in a first step, the material thickness of the airway tube, the intermediary portion and the cuff being regulated by the closed mould part, ejecting the airway tube, the intermediary portion and the cuff having the annularly extending opening from the mould in a second step, and providing a closed inflatable cuff by closing of the annularly extending opening of the cuff by assembling the second peripheral edge of the cuff with said intermediary portion by a joint.