Adjustable nasal prong and headgear assembly

Abstract

The invention is directed to a ventilation interface, which includes a cannula having one or more nasal prongs, a ventilation tube connected to the cannula and headgear. The cannula is secured onto the patient through one or more arced couplers positioned between the cannula and headgear. The cannula has a first side wall, a second side wall and a top wall which form a reservoir. The top wall includes a first portion, a second portion and a notch positioned between the first portion and second portion. The ventilation tube includes one or more bleed ports and provides breathable gas to a patient. The headgear includes a first strap and a second strap. The first strap includes a first portion and second portion that contains two or more slots to connect the second strap. Each portion of the first strap includes an inner layer and an outer layer.

1 - 23 . (canceled) 
     
     
         24 . A respiratory interface comprising:
 a cannula having at least one coupler;   at least one nasal prong coupled with the cannula; and   a headgear having at least one connector adapted to be attached to the at least one coupler of the cannula; and   wherein an angle of the at least one nasal prong relative to the headgear is varied by a relative position between the connector and the coupler.   
     
     
         25 . The respiratory interface of  claim 24 , wherein the at least one nasal prong is located on a top wall of the cannula. 
     
     
         26 . The respiratory interface of  claim 24 , wherein the at least one coupler includes at least one female sleeve. 
     
     
         27 . The respiratory interface of  claim 24 , wherein the at least one coupler is on a side wall of the cannula. 
     
     
         28 . The respiratory interface of  claim 24 , wherein the at least one connector of the headgear includes at least one male tine. 
     
     
         29 . The respiratory interface of  claim 28 , wherein the at least one male tine includes at least one position indicator. 
     
     
         30 . The respiratory interface of  claim 24 , further comprising a ventilation tube coupled to the cannula. 
     
     
         31 . The respiratory interface of  claim 30 , wherein the ventilation tube is coupled to the cannula via a ball-and-socket connector. 
     
     
         32 . The respiratory interface of  claim 24 , wherein the respiratory interface further includes at least one bleed port. 
     
     
         33 . The respiratory interface of  claim 24 , wherein the at least one nasal prong is removably coupled to the cannula. 
     
     
         34 . The respiratory interface of  claim 24 , wherein the at least one nasal prong includes at least one sealing portion. 
     
     
         35 . The respiratory interface of  claim 24 , wherein the at least one nasal prong includes an adjustable upper portion with an opening located at a distal tip of the nasal prong. 
     
     
         36 . A respiratory interface comprising:
 a cannula having at least one coupler;   at least one nasal prong coupled with the cannula; and   a headgear having at least one connector adapted to be slidably inserted into the at least one coupler of the cannula; and   wherein a position of the cannula relative to the headgear is accomplished by varying an insertion depth of the connector into the coupler.   
     
     
         37 . The respiratory interface of  claim 36 , wherein the at least one nasal prong is coupled with a top wall of the cannula. 
     
     
         38 . The respiratory interface of  claim 36 , wherein the at least one coupler of the cannula includes at least one female sleeve. 
     
     
         39 . The respiratory interface of  claim 36 , wherein the at least one connector of the headgear includes at least one male tine. 
     
     
         40 . A respiratory interface comprising:
 a cannula having at least one female coupler:   at least one nasal prong coupled with the cannula; and   a headgear having at least one male coupler adapted to be slidably inserted into the at least one female coupler along a curved path.   
     
     
         41 . The respiratory interface of  claim 40 , wherein the at least one nasal prong is coupled to a top wall of the cannula. 
     
     
         42 . The respiratory interface of  claim 40 , wherein the at least one female coupler includes at least one female sleeve. 
     
     
         43 . The respiratory interface of  claim 40 , wherein the at least one male coupler includes at least one male tine.