Laryngeal mask airway device

Details Laryngeal mask airway device Laryngeal mask airway device

A - Human Necessities

61

M

A61M 16/04 (2006.01)

Patent

CA 2650214

A modified laryngeal mask airway device (LMA-device) is provided with means to improve ease of insertion, reliability of function and higher seal pressure (i.e., cuff pressure ratio). The LMA-device includes a flexible airway tube with a mask attached to one end that has a generally elliptical periphery provided with an inflatable cuff, and including a reinforcing rib incorporated into the distal end of the inflatable cuff, where the rib is stiffer than the deflated cuff.

L'invention porte sur un masque laryngé modifié présentant un dispositif permettant de faciliter l'insertion, augmenter sa fiabilité et accroître l'étanchéité (c.-à-d. la pression du ballonnet). Le masque laryngé comprend un tube flexible pour le passage de l'air et un masque fixé à une extrémité, lequel est généralement de forme elliptique et dont la bordure est constituée d'un ballonnet gonflable. La partie distale du ballonnet gonflable comprend une nervure de renforcement. Cette nervure est plus rigide que le ballonnet dégonflé.

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