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US 6,604,525 B2Granted
Laryngeal mask airways and their manufacture
AssigneeSmiths Group PLC
InventorEric Pagan
Life of this patent
Estimating the term…
Abstract
The mask of a laryngeal mask assembly has a mount and an integral cuff at the patient end of a tube. The mount is of a thermoplastic material and the cuff is made by blow moulding from the material of the mount. A separate retaining plate seals an edge of the cuff with the mount and traps an inflation tube extending from the cuff to the inflation line of the tube.
Claims14
A method of making a laryngeal mask comprising:
- providing an elongate tube having a mount member at a patient end of the elongate tube, said mount member being of generally elliptical shape and having an opening therethrough in communication with the patient end of said tube;
- forming a hollow cuff member from said mount member, wherein forming the hollow cuff member comprises:
- heating said mount member in a mould so that material of the mount member flows and moulds into the hollow cuff member, wherein the hollow cuff member extends around said mount member.
Dependencies are inferred from the claim text.