Laryngeal mask
AssigneeMeenakshi Baska
InventorKanag Baska
Life of this patent
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Abstract
A device for maintaining an airway in a patient includes a mask having a 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, includes an 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 mask includes a proximal portion adapted to collapse or compress so that a proximal ventral part of the mask can move relatively towards a dorsal part of the mask during insertion of the mask. This facilitates insertion of the mask into the patient.
Claims19
A device for maintaining an airway in a patient, the device comprising a mask having a 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 an 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 mask includes a chamber having an opening in fluid communication with the airway tube, the chamber including an outlet through which pressurised gases are supplied to the patient, the chamber including a wall having a wall portion extending from a ventral side of the mask towards a dorsal side of the mask, the wall of the chamber includes a proximal wall portion, opposed side wall portions and a distal portion, 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, the chamber including a region of relatively higher strength or stiffness extending at least partly around a soft, flexible portion surrounding the outlet, wherein the mask includes a proximal portion adapted to collapse or compress so that a proximal ventral part of the mask can move relatively towards a dorsal part of the device during insertion of the mask, the region of relatively higher strength or stiffness being at least partly located in a region between the soft, flexible portion surrounding the outlet of the mask and the proximal portion that is adapted to collapse or compress.
A device for maintaining an airway in a patient, the device comprising a mask having a 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 an 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 mask includes a chamber having an opening in fluid communication with the airway tube, the chamber including an outlet through which pressurised gases are supplied to the patient, the chamber including a wall having a wall portion extending from a ventral side of the mask towards a dorsal side of the mask, the wall of the chamber includes a proximal wall portion, opposed side wall portions and a distal portion, wherein the mask includes a proximal portion adapted to collapse or compress so that a proximal ventral part of the mask can move relatively towards a dorsal part of the device during insertion of the mask, wherein the proximal portion that is adapted to collapse or compress is shaped to facilitate collapsing or compressing, wherein the proximal portion of the mask, when viewed in cross section, has a first region extending inwardly into the chamber, a second region depending ventrally from the first region, the second region extending outwardly from the first region, whereby the second region can flex outwardly relative to the first region to thereby facilitate collapsing or compressing.
Dependencies are inferred from the claim text.