Nasal cannula and securement system

Patent metadata

Field	Value
Publication number	US-12226579-B2
Application number	US-201917253052-A
Country	US
Kind code	B2
Filing date	Jun 19, 2019
Priority date	Jun 19, 2018
Publication date	Feb 18, 2025
Grant date	Feb 18, 2025

Abstract

A patient interface assembly has a patient interface and a securement system for the patient interface and/or patient interface tubing. The patient interface has a body and at least one nasal prong extending from the body. The at least one nasal prong has a gas inlet for fluid communication with a supply of breathable gas, and a gas outlet configured to direct a flow of gas towards a nare of the user's nose. The at least one nasal prong further includes an exterior surface, at least a portion of the exterior surface is a sealing surface configured to seal the nare of the user's nose. The securement system has a two-part releasable attachment or connection arrangement, the arrangement comprising a first patch and a second patch.

First claim

The invention claimed is:

1. A patient interface assembly comprising:
a patient interface comprising: a body and two nasal prongs extending from the body, each of the nasal prongs having a gas inlet for fluid communication with a supply of breathable gas, and a gas outlet configured to direct a flow of gas towards a nare of a user's nose, wherein each of the nasal prongs is in fluid communication with the other of the nasal prongs via a manifold, the manifold comprising an elongate body defining an interior space, wherein a wall of the elongate body defining the interior space is solid except for a first opening, a second opening and the gas inlet of each of the nasal prongs, wherein in a first configuration, the first opening is a gas inlet of the manifold and the second opening is a gas outlet of the manifold, and in a second configuration, the second opening is the gas inlet of the manifold, and the first opening is the gas outlet of the manifold;
each of the nasal prongs further including an exterior surface, at least a portion of the exterior surface being a sealing surface configured to seal the nare of the user's nose; and
a securement system for the patient interface, the securement system comprising a bonnet, and a two-part releasable attachment arrangement, the two-part releasable attachment arrangement comprising a first patch and a second patch,
the first patch having a patient side and an interface side, the patient side of the first patch being attachable to the bonnet, the interface side of the first patch being provided with a first part of the two-part releasable attachment arrangement,
the second patch having an interface side and a patient side, the patient side of the second patch being provided with a complimentary second part of the two-part releasable attachment arrangement, and
the interface side of the second patch being attachable to or formed as part of the patient interface.

2. The patient interface assembly of claim 1 , wherein each of the nasal prongs is an inspiratory and an expiratory prong.

3. The patient interface assembly of claim 1 , wherein the manifold is fully and always open between the nasal prongs.

4. The patient interface assembly of claim 1 , wherein the interface side of the first patch has one of a hook or a loop, and the second part of the second patch has the other of the hook or the loop, such that the first patch and the second patch are releasably attachable or connectable to each other.

5. The patient interface assembly of claim 1 , wherein the first patch is locatable and/or attachable to skin on the user's face.

6. The patient interface assembly of claim 1 , wherein the second patch is locatable, attached or attachable, or is connected to, or with, the patient interface.

7. The patient interface assembly of claim 1 , wherein the first part of the two-part releasable attachment arrangement on the first patch occupies less than about 90%, or about 85%, or about 75%, or about 60%, or about 50%, or about 40%, or about 30% ,or about 20%, or about 10% of the interface side of the first patch.

8. The patient interface assembly of claim 1 , wherein the patient side of the first patch has a dermatologically sensitive adhesive configured to attach or adhere the first patch to skin of the user.

9. The patient interface assembly of claim 1 , wherein the first patch has a surface of sufficient area such that, the surface is configured to distribute pressure or adhering forces across skin on the user's face.

10. The patient interface assembly of claim 1 , wherein the first patch is configured to attach or adhere to the user's face adjacent the user's upper lip and/or cheek.

11. The patient interface assembly of claim 1 , wherein the securement system is configured to receive and/or secure the patient interface and patient interface tubing, the patient interface tubing extending from one or both sides of the user's face.

12. The patient interface assembly of claim 1 , wherein the patient interface comprises one or more hinges that are predisposed to bend in predefined directions, wherein the one or more hinges are configured to stabilize a position of each of the nasal prongs on the user's face when forces are exerted on the patient interface.

13. The patient interface assembly of claim 1 , wherein the patient interface comprises one or more hinges located adjacent to each of the nasal prongs at a location that is spaced laterally and outwardly in relation to each of the nasal prongs, wherein the one or more hinges are predisposed to bend in a pre-defined direction.

14. The patient interface assembly of claim 12 , wherein at least one of the one or more hinges is configured to bend inward towards the user's face and/or downwards from the user's nose.

15. The patient interface assembly of claim 12 , wherein the one or more hinges comprise a variable cross-sectional area or a variable thickness.

16. The patient interface assembly of claim 12 , wherein the one or more hinges comprise an elastic hinge that is configured to be pre-stressed before application to the user.

17. The patient interface assembly of claim 1 , further comprising one or more hinging regions forming a bend in the body, wherein each of the one or more hinging regions is configured to bend when a force is applied to the patient interface and to stabilize a position of each of the nasal prongs on a portion of the user's face in order to reduce a displacement distance of each of the nasal prongs out of the nares of the user's nose.

18. The patient interface assembly of claim 17 , wherein the one or more hinging regions is located adjacent to each of the nasal prongs at a location that is spaced laterally and outwardly in relation to each of the nasal prongs.

19. The patient interface assembly of claim 1 , wherein the bonnet comprises a pair of flaps, wherein each flap of the pair of flaps is configured to overlap with the other flap of the pair of flaps at a front portion of the user's head to secure the bonnet to the user's head.

20. The patient interface assembly of claim 19 , wherein a degree of overlap of the pair of flaps can be varied to adjust a size of the bonnet.

21. The patient interface assembly of claim 19 , wherein an outward-facing surface of the bonnet comprises one or more sections of hook or loop material, and wherein a patient-facing surface of at least one flap of the pair of flaps comprises a complementary section of hook or loop material.

22. A patient interface assembly comprising:
a patient interface comprising: a body and two nasal prongs, each of the nasal prongs extending from the body, each of the nasal prongs having a first end in fluid communication with a supply of breathable gas, and a second end configured to be positioned in a nare of a user's nose, wherein each of the nasal prongs is in fluid communication with the other of the nasal prongs via a manifold comprising a first opening and a second opening, wherein in a first configuration, the first opening is a gas inlet of the manifold and the second opening is a gas outlet of the manifold, and in a second configuration, the second opening is the gas inlet of the manifold, and the first opening is the gas outlet of the manifold;
each of the nasal prongs further including an exterior surface, at least a portion of the exterior surface being a sealing surface configured to seal the nare of the user's nose;
wherein the patient interface is configured so that inspiratory flow and expiratory flow are deliv

Assignees

• Fisher & Paykel Healthcare Ltd

Inventors

• Ronayne Michael Paul
• Northey Anna Rose
• Howarth Brad Michael
• Stanley Leon Tyler
• Davis Samuel Rollo Ross
• Meech Julio Derek
• Stanton James William
• Michelsen Larissa Grace
• Mcgerty Oscar Elliot James

Classifications

• A61M16/0683

  Holding devices therefor · CPC title

• A61M16/0694

  Chin straps · CPC title

• A61M2240/00

  Specially adapted for neonatal use · CPC title

• A61M16/0688

  by means of an adhesive · CPC title

• A61M2205/6081

  Colour codes · CPC title