US Patent 7556043 Patient interface with an integral cushion and nasal pillows

The patient interface (10) of the present invention includes a pair of nasal pillows (28) for delivery of gas. The nasal pillows (28) project from a partition (22) that separates an interior of the patient interface into a first chamber (24) that is configured to receive the nose of a patient when the patient interface is mounted operatively on the face of the patient and into which the nasal pillows (28) project and a second chamber (26) that has a port (30) for delivery of gas to and from the nasal pillows (28) via the second chamber (26).