Abstract: A a nasal airway interface apparatus includes a body section having a gas delivery connector for receiving a gas from a source of gas, two nasal interfaces, and strap connectors for attaching a head strap. Each nasal interface of the two nasal interfaces extends from the body section, has an insertion tip that has an opening that is distal from the body section, and a flattened side for sealing against a septum of a nose. Two exhalation manifolds are provided for exhausts, each of the two exhalation manifolds have a plurality of holes for expelling exhalation gases. Gas flows in a substantially linear path from the gas delivery connector, through the body section, through the two nasal interfaces and out the openings.

Abstract: An integrated cannula with interface pillows includes a cannula section having a gas inlet for receiving gas, exhalation holes for venting exhalation gas to the atmosphere, and nubs for attaching a head strap. There are two interface pillows formed from a pliable material extend from the cannula section. Each of the interface pillows having an insertion tip that is distal from where each of the interface pillows meets the cannula section. An insertion bulge extends from each interface pillow between the insertion tip and the cannula section, limiting an insertion distance of the insertion tip. An insertion area of each interface pillow extends between the insertion bulge and the insertion tip during use, the insertion bulge is configured to seal against an outer edge of the nostril of a nose.

Abstract: An interface pillow for insertion into a nostril of a user for delivering positive air pressure (e.g. during sleep) has a pliable member having a body. The body has an insertion end and a distal sealing end that includes a seal for interfacing with a cannula. An insertion bulge extends from the body limiting an insertion distance into the user's nostrils. An insertion area of the body extends between the insertion end and the insertion bulge, the sides of which angle inwardly towards the insertion end at an angle. The outer shape of the insertion area is flattened on one side for interfacing with a septum of a nose, and an upper interface area of the outer shape of the insertion area is narrower than a lower interface area of the outer shape of the insertion area to conform to a shape of a nostril of the nose.

Abstract: An interface pillow for insertion into a nostril of a user for delivering positive air pressure (e.g. during sleep) has a pliable member having a body. The body has an insertion end and a distal sealing end that includes a seal for interfacing with a cannula. An insertion bulge extends from the body limiting an insertion distance into the user's nostrils. An insertion area of the body extends between the insertion end and the insertion bulge, the sides of which angle inwardly towards the insertion end at an angle. The outer shape of the insertion area is flattened on one side for interfacing with a septum of a nose, and an upper interface area of the outer shape of the insertion area is narrower than a lower interface area of the outer shape of the insertion area to conform to a shape of a nostril of the nose.