초록 ▼

Disclosed is a novel improved nasal mask useful for patients suffering from respiratory ailments such as sleep apnea syndrome. The mask includes a shell having a contoured portion circumscribing the nasal area and side wings through which a retention strap passes. A seal is disposed between the shel

Disclosed is a novel improved nasal mask useful for patients suffering from respiratory ailments such as sleep apnea syndrome. The mask includes a shell having a contoured portion circumscribing the nasal area and side wings through which a retention strap passes. A seal is disposed between the shell and the patient's face providing a large contact area to distribute retention forces and reduce facial pressure. Transmission of external loads to and torques induced in the shell are minimized by orienting inlets proximate side wings and supporting a supply conduit along the strap.

대표청구항 ▼

[ What is claimed is:] [1.] A nasal mask comprising:a shell comprising:a contoured portion having an interior surface and a perimeter configured to form a chamber around a nose of a patient donning said mask; anda pair of side wings extending outwardly from said contoured portion to extend along che

[ What is claimed is:] [1.] A nasal mask comprising:a shell comprising:a contoured portion having an interior surface and a perimeter configured to form a chamber around a nose of a patient donning said mask; anda pair of side wings extending outwardly from said contoured portion to extend along cheeks of a patient; anda seal on said shell for sealing the mask to a patient, said seal comprising:a contoured surface disposed about said perimeter for sealing said chamber around the nose of a patient; andcontinuous seal extending along said side wings and substantially matching a configuration of said wings so as to contact the cheeks of a patient remotely from said perimeter to increase contact area between said seal and a patient thereby reducing slippage of said mask for a given induced force.