Laryngeal mask and a method manufacturing same
First Claim
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 comprisinginjection 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, andproviding 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.
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Accused Products
Abstract
The invention relates to a laryngeal mask (1) comprising at least one airway tube (2) and a mask portion (3), which mask portion (3) comprises a top face (4) and a bottom face (5), said bottom face (5) comprising a lumen (6) that communicates with the tube (2) interior (7), and said top face (4) comprising a closed transition face (8), and said mask portion (3) being at least on the bottom face in the periphery delimited by an inflatable cuff (9), and said mask portion (3) comprising a joint throughout the entire internal circumference of the cuff (9), facing towards the lumen (6) and for providing a closed cuff. Hereby a product is provided which is formed integrally with regard to mask portion and airway tube portion thereby eliminating the risk that the two parts are separated in use.
44 Citations
10 Claims
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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.
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10. A laryngeal mask comprising at least one airway tube and a mask portion, which mask portion comprises a top face and a bottom face, said bottom face comprising a lumen that communicates with the tube interior, and said top face comprising a closed transition face, said mask portion being at least on the bottom face in the periphery delimited by an inflatable cuff, wherein the cuff of the mask portion comprises at least two inflatable bellows that are arranged on a top face of the inflatable cuff and are symmetrical about a longitudinal axis of the cuff, said at least two inflatable bellows being provided for abutment against a wall of a pharynx opposite a laryngeal opening for providing a tight connection of the mask portion and the laryngeal opening;
- and respective gully formed between each of said at least two inflatable bellows and the top face of the mask portion.
Specification