Laryngeal mask

A - Human Necessities – 61 – M

Patent

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Details

A61M 16/00 (2006.01)

Patent

CA 2697439

A device for maintaining an airway in a patient comprises mask having a peripheral portion that forms a seal with the larynx when the mask is positioned in the laryngo pharynx to thereby prevent ingress of extraneous fluids into the larynx and n airway tube connected to or formed with the mask for passing gas to the larynx when the mask is properly inserted into the laryngo pharynx. The peripheral portion of the mask includes a soft, flexible portion that contacts tissues surrounding the laryngeal opening when the device is inserted into a patient, the soft, flexible portion being arranged whereby application of pressurised gas to the airway tube urges the soft, flexible portion into contact with the tissues surrounding the laryngeal opening or the pharyngeal wall.

L'invention concerne un dispositif permettant la ventilation d'un patient, comprenant un masque pourvu d'une partie périphérique formant un joint avec le larynx lorsque le masque est placé dans le laryngo-pharynx, ce qui empêche l'entrée de fluides étrangers dans le larynx, ainsi qu'un tube respiratoire relié au masque ou formé solidaire de celui-ci et permettant le passage de gaz dans le larynx lorsque le masque est inséré correctement dans le laryngo-pharynx. La partie périphérique du masque comprend une partie souple et flexible destinée à venir en contact avec les tissus entourant l'ouverture du larynx lorsque le dispositif est inséré dans le corps du patient, cette partie souple et flexible étant disposée de sorte que l'application de gaz sous pression dans le tube respiratoire la sollicite pour la mettre en contact avec les tissus entourant l'ouverture du larynx ou la paroi du pharynx.

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