Patient interface

Abstract

A nasal interface 100 comprising an interface body 110 configured to substantially form a seal with a patient's nasal airways, the interface body comprising a gases flow channel 125, a first delivery element 111 or a first delivery element portion, a second delivery element 112 or a second delivery element portion, a first gases port 121 in the interface body and a second gases port 122 in the interface body. The first gases port 121 and the second gases port 122 have substantially the same configuration such that a first respiratory component 331 can be selectively connected to each of the first gases port 121 and the second gases port 122, and such that a second respiratory component 332 can be selectively connected to each of the first gases port 121 and to the second gases port 122. The first gases port 121 is connected to a first respiratory component 331,340. The second gases port 122 is connected to second respiratory component 332 for enabling exhaled gases to be expelled out of the interface body 110. The nasal interface 110 is configured to create an asymmetric flow of gases. [Figure 4]