Patent ID: 7451764

Claim:
A nasal mask, comprising: a pair of main bodies each having an open outer end, an open inner end, and a through-hole that extends from the outer end to the inner end and forms a containing space, wherein each main body is configured for insertion into a nostril of a user's nose with the inner end disposed at a position further within the nostril than the outer end; a connecting member for connecting edges of the opening ends of said pair of main bodies; each of the main bodies having a septal cartilage plug, the septal cartilage plug being an upward-protruding ridge extending generally from the outer end proximate to said connecting member toward the inner end; each of the main bodies having an alar projection disposed at an upper brim of the outer end, the alar projection being a convex projection formed on a surface of the main body and separated from said septal cartilage ridge by an alar trough; each of the main bodies having an alar notch formed in the alar projection; wherein the alar projection is adapted to seal with the inside of a nasal ala and the septal cartilage plug is adapted to engage septal cartilage when the main bodies are inserted into said user's nostrils.