NZ783524B2 - Oro-Nasal Patient Interface - Google Patents
Oro-Nasal Patient Interface Download PDFInfo
- Publication number
- NZ783524B2 NZ783524B2 NZ783524A NZ78352417A NZ783524B2 NZ 783524 B2 NZ783524 B2 NZ 783524B2 NZ 783524 A NZ783524 A NZ 783524A NZ 78352417 A NZ78352417 A NZ 78352417A NZ 783524 B2 NZ783524 B2 NZ 783524B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- patient
- frame
- seal
- patient interface
- forming structure
- Prior art date
Links
- 239000004753 textile Substances 0.000 claims abstract 15
- 239000000463 material Substances 0.000 claims abstract 10
- 239000003570 air Substances 0.000 claims abstract 7
- 239000012080 ambient air Substances 0.000 claims abstract 6
- 230000000241 respiratory effect Effects 0.000 claims abstract 5
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract 3
- 238000002560 therapeutic procedure Methods 0.000 claims abstract 3
- 238000000034 method Methods 0.000 claims 11
- 239000006261 foam material Substances 0.000 claims 2
- 238000007493 shaping process Methods 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 229920001296 polysiloxane Polymers 0.000 claims 1
Abstract
Disclosed is a patient interface or mask for sealed delivery of a flow of air at a continuously positive pressure with respect to ambient air pressure to an entrance to the patient's airways including at least entrance of a patient's nares, wherein the patient interface is configured to maintain a therapy pressure in a range of about 4 cmH2O to about 30 cmH2O above ambient air pressure in use, throughout the patient's respiratory cycle, while the patient is sleeping, to ameliorate sleep disordered breathing, the mask configured to provide a more comfortable fit and improved seal to the patient's face. The patient interface has a frame including a single sheet of textile material, where a first edge of the sheet of textile material is joined to a second edge of the sheet of textile material such that the frame adopts a predetermined three-dimensional shape that is maintained throughout the patient’s respiratory cycle; and a seal-forming structure is provided to the frame.
Claims (28)
1. A patient interface for sealed delivery of a flow of air at a continuously positive pressure with respect to ambient air pressure to an entrance to the patient's airways including at least entrance of a patient's nares, wherein the patient interface is configured to maintain a therapy pressure in a range of about 4 cmH2O to about 30 cmH2O above ambient air pressure in use, throughout the patient's respiratory cycle, while the patient is sleeping, to ameliorate sleep disordered breathing, said patient interface comprising: a frame including a single sheet of textile material, wherein a first edge of the sheet of textile material is joined to a second edge of the sheet of textile material such that the frame adopts a predetermined three-dimensional shape that is maintained throughout the patient’s respiratory cycle; and a seal-forming structure provided to the frame.
2. The patient interface according to claim 1, wherein the single sheet of textile material comprises a chin portion, the chin portion comprising side portions, wherein the side portions are connected to an interior surface of the frame.
3. The patient interface according to any one claims 1 to 2, wherein the frame is more rigid than the seal-forming structure to support and shape the seal-forming structure in use.
4. The patient interface according to claim 3, wherein the frame provides support surfaces structured and arranged to support and hold the seal-forming structure in predetermined shapes to closely match contours of the patient’s nose and/or mouth.
5. The patient interface according to claim 4, wherein the frame is structured to impart a predetermined three-dimensional shape to the seal-forming structure.
6. The patient interface according to any one of claims 4 to 5, wherein the support surfaces include different curvatures in different regions along its perimeter to impart different shapes or curvatures in different regions of the seal-forming structure.
7. The patient interface according to any one of claims 1 to 6, wherein at least one side of the textile material includes an air impermeable surface.
8. The patient interface according to claim 7, wherein the air impermeable surface comprises a silicone layer.
9. The patient interface according to any one of claims 1 to 8, further comprising an internal structural support provided to the frame to provide further support for the seal-forming structure.
10. The patient interface according to any one of claims 1 to 9, wherein the first edge is joined to the second edge to form a front joint that acts as a central spine for the frame.
11. The patient interface according to any one claims 1 to 10, wherein the frame and the seal-forming structure cooperate to form a plenum chamber.
12. The patient interface according to any one claims 1 to 11, wherein the frame provides an interface with an air delivery tube and headgear.
13. The patient interface according to any one claims 1 to 12, wherein the frame includes a pair of upper headgear connectors and a pair of lower headgear connectors to provide a 4-point connection the headgear.
14. The patient interface according to any one claims 1 to 13, further comprising a vent provided to the frame.
15. The patient interface according to any one claims 1 to 14, wherein the seal- forming structure comprises a nasal cushion configured and arranged to form a seal around a lower portion of the patient’s nose below the patient’s nasal bridge.
16. The patient interface according to claim 15, wherein the seal-forming structure further comprises a mouth cushion configured and arranged to form a seal around at least a portion of the patient’s mouth at least along the sides of the mouth and along the lower lip/chin region.
17. The patient interface according to claim 16, wherein the nasal cushion comprises a foam material and a textile material, and the mouth cushion comprises a foam material.
18. The patient interface according to claim 17, wherein the mouth cushion further comprises a textile material.
19. A method of manufacturing a patient interface suitable for sealed delivery of a flow of air at a continuously positive pressure with respect to ambient air pressure to an entrance to the patient’s airways including at least entrance of a patient’s nares, wherein the patient interface is configured to maintain a therapy pressure in a range of about 4 cmH2O to about 30 cmH2O above ambient air pressure in use, throughout the patient’s respiratory cycle, while the patient is sleeping, to ameliorate sleep disordered breathing, the method comprising: forming a textile sheet into a predetermined flat shape; connecting first and second edges of the textile sheet together to thereby form a frame from the sheet, wherein the frame defines, at least in part, a plenum chamber; and connecting a seal-forming structure to the frame.
20. The method according to claim 19, wherein the textile sheet comprises a chin portion, the chin portion comprising side portions, and wherein the method further comprises connecting the side portions to an interior surface of the frame.
21. The method according to any one of claims 19 to 20, further comprising shaping the frame to form support surfaces structured and arranged to support and hold the seal-forming structure in predetermined shapes to closely match contours of the patient’s nose and/or mouth.
22. The method according to claim 21, wherein the support surfaces include different curvatures in different regions along its perimeter to impart different shapes or curvatures in different regions of the seal-forming structure.
23. The method according to any one of claims 19 to 22, further comprising shaping the frame to impart a predetermined three-dimensional shape to the seal-forming structure.
24. The method according to any one of claims 19 to 23, further comprising connecting an internal structural support to the frame to provide further support for the seal- forming structure.
25. The method according to any one of claims 19 to 24, wherein connecting the first and second edges of the textile sheet together forms a front joint that acts as a central spine for the frame.
26. The method according to any one of claims 19 to 25, wherein at least one side of the textile sheet includes an air impermeable surface.
27. The method according to any one of claims 19 to 26, wherein the seal-forming structure comprises a nasal cushion configured and arranged to form a seal around a lower portion of the patient’s nose below the patient’s nasal bridge.
28. The method according to claim 27, wherein the seal-forming structure further comprises a mouth cushion configured and arranged to form a seal around at least a portion of the patient’s mouth at least along the sides of the mouth and along the lower lip/chin region.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201662278704P | 2016-01-14 | 2016-01-14 | |
| NZ74386817 | 2017-01-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NZ783524A NZ783524A (en) | 2024-10-25 |
| NZ783524B2 true NZ783524B2 (en) | 2025-01-28 |
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