Respiratory interface
A respiratory interface ( 100 ) for delivering gases to a single nare of a patient; comprises of a gases delivery assembly having a single sealing nasal prong ( 200 ) configured to seal with one of the nares of a patient, a conduit ( 300 ), a conduit connector ( 400 ) and a support ( 500 ) with headgear strap clips ( 503 ). The prong slides relative to the support to be interchangeable such that it can engage and seal with either nari. A cuff ( 250, 1250 ) is connected to slider members ( 501, 1501 ). In another embodiment (FIGS. 33 - 49 ), the headgear strap ( 2600 ) is coupled directly to the prong; the strap ( 2600 ) is received between includes cutouts ( 2241 ) of the prong ( 2200 ) and a cuff ( 2250 ).
1 . A respiratory interface for delivering gases to a single nare of a patient, the respiratory interface comprising:
a single sealing nasal prong having a seal body configured to seal with one of two nares of the patient, a prong inlet configured to receive gases, and a prong outlet configured to supply the gases to the patient,
a support for the single sealing nasal prong, and
a conduit in fluid communication with the single sealing nasal prong to form a substantially linear gases path from the conduit to the prong outlet,
wherein the single sealing nasal prong and/or the respiratory interface is configured to allow the single sealing nasal prong to interchangeably seal in or with a left or right nare of the patient while allowing the single sealing nasal prong to remain attached to the support or without being detached from the support;
wherein the single sealing nasal prong is configured to engage only one of the two nares of the patient.
2 . The respiratory interface according to claim 1 , wherein the single sealing nasal prong is located in a fixed position relative to the support.
3 . The respiratory interface according to claim 1 , wherein the single sealing nasal prong is translatable relative to the support.
4 . The respiratory interface according to claim 1 , wherein the support is outside of or separate from or does not form a part of the conduit or gases being supplied to the single sealing nasal prong.
5 . The respiratory interface according to claim 1 , wherein the conduit is fluidly separated from the support, or wherein the support does not form a part of the substantially linear gases path being supplied to the single sealing nasal prong.
6 . The respiratory interface according to claim 1 , wherein the conduit comprises a single conduit.
7 . A respiratory interface for delivering gases to a single nare of a patient, the respiratory interface comprising:
a single sealing nasal prong having a seal body configured to seal with one of two nares of the patient, a prong inlet configured to receive gases, and a prong outlet configured to supply the gases to the patient,
a support for the single sealing nasal prong, and
a conduit in fluid communication with the single sealing nasal prong to form a substantially linear gases path from the conduit to the prong outlet,
wherein the single sealing nasal prong and/or the respiratory interface is configured to allow the single sealing nasal prong to interchangeably seal in or with a left or right nare of the patient while allowing the single sealing nasal prong to remain attached to the support or without being detached from the support;
wherein the single sealing nasal prong is configured to engage only one of two nares of the patient, and wherein a conduit outlet of the conduit is coupled to the prong inlet of the single sealing nasal prong, and wherein the conduit outlet and the prong outlet share a common substantially central axis.
8 . The respiratory interface according to claim 7 , wherein a ratio of a cross sectional area of the prong outlet to a cross sectional area of the conduit outlet is about 0.2 to about 1.
9 . The respiratory interface according to claim 1 , further comprising a headgear removably connectable to the support.
10 . The respiratory interface according to claim 1 , further comprising a cuff, the single sealing nasal prong configured to couple with the cuff.
11 . The respiratory interface according to claim 10 , wherein the single sealing nasal prong comprises a substantially supple or substantially compliant material and the cuff comprises a substantially rigid material.
12 . The respiratory interface according to claim 1 , wherein the prong outlet comprises a width and a length, wherein a ratio of the width to the length is about 0.4 to about 0.9.
13 . The respiratory interface according to claim 1 , wherein the single sealing nasal prong is bulbous shaped or globular shaped.
14 . The respiratory interface according to claim 13 , wherein the seal body tapers inwardly from the prong inlet towards the prong outlet.
15 . The respiratory interface according to claim 1 , wherein the prong inlet is larger than the prong outlet.
16 . The respiratory interface according to claim 1 , wherein a cross-section of the prong outlet is elliptical.
17 . The respiratory interface according to claim 1 , wherein the prong inlet is generally circular and a cross section of the prong inlet is substantially similar to a cross section of a conduit outlet of the conduit.
18 . The respiratory interface according to claim 1 , wherein the conduit comprises an end portion, wherein the end portion and the single sealing nasal prong form the substantially linear gases path from the end portion to the prong outlet.