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NZ780514B2 - Patient Interface With Foam Seal-Forming Structure - Google Patents
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NZ780514B2 - Patient Interface With Foam Seal-Forming Structure - Google Patents

Patient Interface With Foam Seal-Forming Structure Download PDF

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Publication number
NZ780514B2
NZ780514B2 NZ780514A NZ78051416A NZ780514B2 NZ 780514 B2 NZ780514 B2 NZ 780514B2 NZ 780514 A NZ780514 A NZ 780514A NZ 78051416 A NZ78051416 A NZ 78051416A NZ 780514 B2 NZ780514 B2 NZ 780514B2
Authority
NZ
New Zealand
Prior art keywords
cushion
support portion
cushion assembly
patient
elastomeric
Prior art date
Application number
NZ780514A
Other versions
NZ780514A (en
Inventor
Shannon Day
Matthew Eves
Lemmy Nga
Gerard Michael Rummery
Rupert Christian Scheiner
Original Assignee
ResMed Pty Ltd
Filing date
Publication date
Priority claimed from PCT/AU2016/050228 external-priority patent/WO2016149769A2/en
Application filed by ResMed Pty Ltd filed Critical ResMed Pty Ltd
Priority claimed from NZ740229A external-priority patent/NZ740229A/en
Publication of NZ780514A publication Critical patent/NZ780514A/en
Publication of NZ780514B2 publication Critical patent/NZ780514B2/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/0057—Pumps therefor
    • A61M16/0066—Blowers or centrifugal pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/0057—Pumps therefor
    • A61M16/0066—Blowers or centrifugal pumps
    • A61M16/0069—Blowers or centrifugal pumps the speed thereof being controlled by respiratory parameters, e.g. by inhalation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0605—Means for improving the adaptation of the mask to the patient
    • A61M16/0611—Means for improving the adaptation of the mask to the patient with a gusset portion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0605—Means for improving the adaptation of the mask to the patient
    • A61M16/0616—Means for improving the adaptation of the mask to the patient with face sealing means comprising a flap or membrane projecting inwards, such that sealing increases with increasing inhalation gas pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0605—Means for improving the adaptation of the mask to the patient
    • A61M16/0616—Means for improving the adaptation of the mask to the patient with face sealing means comprising a flap or membrane projecting inwards, such that sealing increases with increasing inhalation gas pressure
    • A61M16/0622—Means for improving the adaptation of the mask to the patient with face sealing means comprising a flap or membrane projecting inwards, such that sealing increases with increasing inhalation gas pressure having an underlying cushion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0605—Means for improving the adaptation of the mask to the patient
    • A61M16/0633—Means for improving the adaptation of the mask to the patient with forehead support
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0666—Nasal cannulas or tubing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0683—Holding devices therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0816—Joints or connectors
    • A61M16/0825—Joints or connectors with ball-sockets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0875—Connecting tubes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/105—Filters
    • A61M16/1055—Filters bacterial
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/105—Filters
    • A61M16/106—Filters in a path
    • A61M16/107—Filters in a path in the inspiratory path
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
    • A61M16/109—Preparation of respiratory gases or vapours by influencing the temperature the humidifying liquid or the beneficial agent
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
    • A61M16/1095—Preparation of respiratory gases or vapours by influencing the temperature in the connecting tubes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16—Devices to humidify the respiration air
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/02—Gases
    • A61M2202/0225—Carbon oxides, e.g. Carbon dioxide
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/42—Reducing noise
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2207/00—Methods of manufacture, assembly or production

Abstract

cushion assembly for 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 cmH20 to about 30 cmH20 above ambient air pressure in use, throughout the patient's respiratory cycle, while the patient is sleeping, to ameliorate sleep disordered breathing, the cushion assembly comprising: a foam cushion; an elastomeric support portion configured to support the foam cushion, wherein the foam cushion and the elastomeric support portion together form a chamber, and wherein the elastomeric support portion comprises at least one rib configured to act in tension when the chamber is pressurized.

Claims (23)

1. A cushion assembly for 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 cmH20 to about 30 cmH20 above ambient air pressure in use, throughout the patient's respiratory cycle, while the patient is sleeping, to ameliorate sleep disordered ing, the cushion assembly comprising: a foam cushion; an elastomeric support n configured to support the foam cushion, wherein the foam cushion is more compliant in a nasal bridge region than other regions of the cushion assembly, the nasal bridge region being a region ured to engage the t's nasal bridge when the cushion assembly is mounted on the patient's face, wherein the foam cushion and the meric support portion together form a chamber, wherein the meric support portion comprises at least one rib configured to act in tension when the chamber is pressurized.
2. The cushion assembly of claim 1, wherein an ment surface between the foam cushion and the meric support portion varies in size in different regions of the cushion assembly.
3. The cushion assembly of any one of claims 1 and 2, wherein an elastomeric thickness of the elastomeric support portion varies in different regions of the cushion assembly.
4. The cushion assembly of any one of claims 1 to 3, wherein the foam cushion is configured to roll ve to the meric support portion in response to a compressive force.
5. The cushion assembly of any one of claims 1 to 4, wherein a depth of the elastomeric support portion varies in different regions of the cushion assembly.
6. The cushion assembly of any one of claims 1 to 5, wherein, the foam cushion is configured to ng the elastomeric support portion.
7. The cushion ly of claim 6, wherein the foam cushion is configured to overhang an interior side of the support portion.
8. A patient interface comprising: the cushion assembly of any one of claims 1 to 7; a rigid shell removably connected to the cushion assembly; and headgear removably ed to the rigid shell.
9. A CPAP system comprising: the patient interface according to claim 8; a flow generator configured to rize a flow of gas; and an air delivery tube configured to r the pressurized gas to the patient interface.
10. A cushion assembly for a patient interface for sealed ry 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 cmH20 to about 30 cmH20 above t air pressure in use, throughout the patient's respiratory cycle, while the patient is sleeping, to ameliorate sleep disordered breathing, the cushion assembly comprising: a foam cushion; and an elastomeric support portion configured to support the foam cushion, n the elastomeric support portion provides varying levels of support to the foam cushion in different regions of the cushion assembly, wherein the foam cushion and the elastomeric support portion together form a chamber, wherein the elastomeric support n comprises at least one compressible rib configured to act in tension when the r is pressurized.
11. The cushion ly of claim 10, wherein an elastomeric wall thickness of the elastomeric support portion varies in different regions of the cushion assembly.
12. The cushion assembly of claim 11, wherein the elastomeric wall thickness of the elastomeric support portion is thinnest in a nasal bridge region of the cushion assembly, the nasal bridge region being a region at a or apex of the n assembly.
13. The cushion assembly of any one of claims 10 to 12, wherein a depth of the elastomeric support portion varies in different regions of the cushion assembly.
14. A patient interface comprising: the cushion assembly of any one of claims 10 to 13; a rigid shell removably connected to the cushion assembly; and headgear removably attached to the rigid shell.
15. A CPAP system comprising: the patient interface according to claim 14; a flow generator configured to rize a flow of gas; and an air delivery tube configured to deliver the pressurized gas to the patient interface.
16. A n ly for 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 s 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 cmH20 to about 30 cmH20 above ambient air pressure in use, throughout the patient's respiratory cycle, while the patient is sleeping, to rate sleep disordered breathing, the cushion ly comprising: a foam cushion; and an elastomeric support portion configured to support the foam cushion, wherein the cushion assembly is bisected by a sagittal plane having a line that is tangent to the foam n only at a or tangent point and an inferior tangent point, and wherein a depth of the support portion is st at a superior region that includes the superior tangent, and an elastomeric wall thickness of the elastomeric support portion is thinnest at the superior region, n the foam cushion and the elastomeric support portion together form a chamber, wherein the elastomeric support n comprises at least one compressible rib configured to act in tension when the chamber is pressurized.
17. The cushion ly of claim 16, wherein the foam cushion is saddle-shaped in at least a portion of the superior .
18. The cushion assembly of any one of claims 16 to 17, wherein the depth of the support portion is less at an inferior region that includes the inferior tangent than at the superior region.
19. The cushion assembly of claim 18, wherein the elastomeric wall thickness of the elastomeric support portion is thicker at the inferior region than at the or region.
20. The cushion assembly of any one of claims 18 to 19, wherein the depth of the t portion is least at an intermediate region between the inferior region and the superior region.
21. The cushion ly of claim 20, wherein the elastomeric wall thickness of the elastomeric support portion is thickest at the intermediate region.
22. A patient interface comprising: the cushion assembly of any one of claims 16 to 21; a rigid shell removably ted to the cushion assembly; and headgear removably attached to the rigid shell.
23. A CPAP system comprising: patient interface according to claim 22; a flow tor configured to pressurize a flow of gas; and an air delivery tube configured to deliver the pressurized gas to the patient interface. 3000 \\\\\“lm uu|\\“““
NZ780514A 2016-09-23 Patient Interface With Foam Seal-Forming Structure NZ780514B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201562222503P 2015-09-23 2015-09-23
PCT/AU2016/050228 WO2016149769A2 (en) 2015-03-25 2016-03-24 Patient interface with blowout prevention for seal-forming portion
US201662377251P 2016-08-19 2016-08-19
NZ740229A NZ740229A (en) 2015-09-23 2016-09-23 Patient interface with foam seal-forming structure

Publications (2)

Publication Number Publication Date
NZ780514A NZ780514A (en) 2024-08-30
NZ780514B2 true NZ780514B2 (en) 2024-12-03

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