Granted Patent B2

US 8,905,028 · App. 13/105,871 · Granted Dec 9, 2014

Abstract

Claims (29)

1. A non-invasive ventilation patient interface comprising:

a fresh gas entry port configured for coupling with a fresh gas supply;

a frame configured for (i) coupling with a head strap system that is configured for supplying a securing force to secure said patient interface in a position over a respiratory opening of a patient and (ii) extending over a mouth and nose of the patient;

a facial skin interface disposed along a perimeter of said frame, configured to be positioned between said frame and said patient, said facial skin interface having distal ends terminating, when in use, on opposing lateral edges of a nasal bridge of said patient;

a zygomatic facial interface projecting distally from said facial skin interface and configured for spreading most or all of said securing force away from said nasal bridge and onto left and right zygomatic arch regions of said patient; and

a compliant nose bridge seal coupled between said facial skin interface distal ends, wherein said nose bridge seal is configured to flex independent of said facial skin interface.

2. The patient interface of claim 1 , further comprising said head strap system, wherein said head strap system is further configured for coupling from a left lateral portion of said frame, around a posterior skull of said patient, and to a right lateral portion of said frame such that, in response to donning of said patient interface, said head strap system applies said securing force.

3. The patient interface of claim 1 , further comprising an extended chin portion.

4. The patient interface of claim 3 , wherein said extended chin portion comprises a chin bellows.

5. The patient interface of claim 1 , further comprising a flexible tubing coupled with said fresh gas entry port.

6. The patient interface of claim 5 , wherein said flexible tubing is coupled with an omni-directional swivel.

7. The patient interface of claim 1 , wherein said zygomatic facial interface comprises a plurality of inflatable bladders.

8. The patient interface of claim 1 , wherein said zygomatic facial interface comprises a moisture purging feature configured for contacting facial skin of said patient and for facilitating a controlled and intentional leak of fresh respiratory gas between said moisture purging feature and said facial skin.

9. The patient interface of claim 1 , wherein said zygomatic facial interface comprises a wicking feature configured for contacting facial skin of said patient and for wicking fluid from said facial skin.

10. The patient interface of claim 1 , wherein a portion of said zygomatic facial interface is imbued with at least one of an emollient, an antibacterial, and a vasodilator.

11. The patient interface of claim 1 , wherein a portion of said zygomatic facial interface is configured with a tube insertion region.

12. The patient interface of claim 1 , wherein the fresh gas entry port is on a first side of the patient interface, and an exhalation gas collection line on a second side, opposite the first side, of the patient interface, such that a cross-flow of gas from the fresh gas entry port is directed across said respiratory opening of the patient even when a front cover is removed from the frame, thereby uncovering said respiratory opening.

13. A non-invasive ventilation facial interface comprising:

a first portion configured for sealably interfacing with facial skin covering a left zygomatic arch region of a patient;

a second portion configured for sealably interfacing with facial skin covering a right zygomatic arch region of said patient,

wherein said first and second portion distally project from a facial skin interface, wherein said facial skin interface is disposed along a perimeter of a frame, between said frame and patient, said facial skin interface having distal ends terminating, when in use, on opposing lateral edges of a nasal bridge of said patient; and

a compliant nose bridge seal coupled at said distal ends,

wherein in response to application of a securing force for securing said facial interface over said patient's nose and mouth, said first portion and said second portion are configured for spreading most or all of said securing force away from said nasal bridge of said patient and onto to said left and right zygomatic arch regions of said patient, such that little or none of the securing force is applied against the nasal bridge.

14. The facial interface of claim 13 , wherein said first portion and said second portion each comprises a plurality of inflatable bladders.

15. The facial interface of claim 13 , wherein said first portion and said second portion each includes a moisture purging feature configured for contacting facial skin of said patient and for facilitating a controlled and intentional leak of fresh respiratory gas between said moisture purging feature and said facial skin.

16. The facial interface of claim 13 , wherein said first portion and said second portion each includes a wicking feature configured for contacting facial skin of said patient and for wicking fluid from said facial skin.

17. The facial interface of claim 13 , wherein said first portion and said second portion each is imbued with an emollient.

18. The facial interface of claim 13 , wherein said first portion and said second portion each is imbued with an antibacterial.

19. The facial interface of claim 13 , wherein said first portion and said second portion each is imbued with a vasodilator.

Assignments (12)