NZ796355B2 - Patient interface - Google Patents
Patient interface Download PDFInfo
- Publication number
- NZ796355B2 NZ796355B2 NZ796355A NZ79635519A NZ796355B2 NZ 796355 B2 NZ796355 B2 NZ 796355B2 NZ 796355 A NZ796355 A NZ 796355A NZ 79635519 A NZ79635519 A NZ 79635519A NZ 796355 B2 NZ796355 B2 NZ 796355B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- patient
- surface finish
- seal
- patient interface
- forming structure
- Prior art date
Links
- 230000003019 stabilising effect Effects 0.000 claims abstract 2
- 230000001225 therapeutic effect Effects 0.000 claims 5
- 239000003570 air Substances 0.000 claims 3
- 230000000241 respiratory effect Effects 0.000 claims 2
- 239000012080 ambient air Substances 0.000 claims 1
- 230000029058 respiratory gaseous exchange Effects 0.000 claims 1
Abstract
patient interface comprising: a plenum chamber comprising: one or more plenum chamber inlet ports; and a seal-forming structure comprising a nasal portion having at least one nasal hole and an oral portion having an oral hole; and a positioning and stabilising structure configured to generate a force to hold the seal-forming structure in a therapeutically effective position on the patient’s head, wherein a first surface of the nasal portion configured to engage the patient’s face has a first surface finish and a second surface of the oral portion configured to engage the patient’s face has a second surface finish that is different from the first surface finish.
Claims (11)
1. A patient interface comprising: a plenum chamber for a patient interface, the plenum chamber pressurisable to a therapeutic pressure of at least 6 cmH2O above ambient air pressure throughout a patient’s respiratory cycle in use, the plenum chamber comprising: one or more plenum chamber inlet ports sized and structured to receive a flow of air at the therapeutic pressure for breathing by a patient; and a seal-forming structure constructed and arranged to form a seal with a region of the patient’s face surrounding an entrance to the patient’s airways, the seal-forming structure comprising a nasal portion having at least one nasal hole configured to deliver the flow of air at said therapeutic pressure to an entrance to the patient’s nares in use, the seal-forming structure comprising an oral portion having an oral hole configured to deliver the flow of air at said therapeutic pressure to an entrance to the patient’s mouth in use, the seal-forming structure constructed and arranged to maintain said therapeutic pressure in the plenum chamber throughout the patient’s respiratory cycle in use; and a positioning and stabilising structure configured to generate a force to hold the seal-forming structure in a therapeutically effective position on the patient’s head, wherein a first surface of the nasal portion configured to engage the patient’s face has a first surface finish and a second surface of the oral portion configured to engage the patient’s face has a second surface finish that is different from the first surface finish.
2. The patient interface of claim 1, wherein the first surface finish and the second surface finish differ in such a way that a coefficient of friction between the P1419NZ4 seal-forming structure and the patient’s face is greater in the oral portion than in the nasal portion.
3. The patient interface of claim 1 or 2, wherein the first surface finish is configured to provide a smoother feel on the patient’s face than the second surface finish, and wherein the second surface finish is configured to provide the oral portion with added grip on the patient’s face.
4. The patient interface of any one of claims 1 to 3, wherein the first surface finish is a frosted surface finish.
5. The patient interface of any one of claims 1 to 4, wherein the second surface finish is a polished surface finish.
6. The patient interface of any one of claims 1 to 5, wherein a boundary between the first surface finish and the second surface finish is located on a part of the seal-forming structure configured to contact the patient’s cheeks in use.
7. The patient interface of any one of claims 1 to 6, wherein the seal-forming structure is configured not to engage the patient’s face below the chin in use.
8. The patient interface of any one of claims 1 to 7, wherein the seal-forming structure comprises a central portion configured to seal against an inferior periphery of the patient’s nose in use.
9. The patient interface of any one of claims 1 to 8, wherein the plenum chamber comprises a shell, the seal-forming structure being connected to the shell.
10. The patient interface of any one of claims 1 to 9, wherein the plenum chamber comprises a single inlet port.
11. The patient interface of any one of claims 1 to 10, wherein the plenum chamber comprises a pair of inlet ports to connect with conduit headgear of the patient interface.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201862649376P | 2018-03-28 | 2018-03-28 | |
| US201862731456P | 2018-09-14 | 2018-09-14 | |
| NZ791167A NZ791167A (en) | 2018-03-28 | 2019-03-28 | Patient interface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NZ796355A NZ796355A (en) | 2024-08-30 |
| NZ796355B2 true NZ796355B2 (en) | 2024-12-03 |
Family
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