NZ774241B2 - Patient Interface with Blowout Prevention for Seal-Forming Portion - Google Patents

Patient Interface with Blowout Prevention for Seal-Forming Portion

Info

Publication number
NZ774241B2
NZ774241B2 NZ774241A NZ77424116A NZ774241B2 NZ 774241 B2 NZ774241 B2 NZ 774241B2 NZ 774241 A NZ774241 A NZ 774241A NZ 77424116 A NZ77424116 A NZ 77424116A NZ 774241 B2 NZ774241 B2 NZ 774241B2
Authority
NZ
New Zealand
Prior art keywords
loop
patient
sealing
patient interface
sealing structure
Prior art date
Application number
NZ774241A
Other versions
NZ774241A (en
Inventor
Matthew Eves
Lemmy Nga
Gerard Michael Rummery
Rupert Christian Scheiner
Original Assignee
ResMed Pty Ltd
Filing date
Publication date
Application filed by ResMed Pty Ltd filed Critical ResMed Pty Ltd
Publication of NZ774241A publication Critical patent/NZ774241A/en
Publication of NZ774241B2 publication Critical patent/NZ774241B2/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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0605—Means for improving the adaptation of the mask to the patient
    • 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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; 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
    • A61M2202/0085—Special media to be introduced, removed or treated product washed out
    • 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
    • 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
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/06—Head
    • A61M2210/0618—Nose

Abstract

One form of the present technology includes a sealing structure to seal against a user's face around the user's airways. The sealing structure includes a flap or membrane that extends inward towards the user's airways and includes a structure that prevents an inner boundary of the flap or membrane from being blown outwards (e.g., folded backwards upon itself) due to internal pressurization. The invention is a patient interface that comprises a sealing structure with a sealing surface and a loop, a positioning and stabilising structure, a plenum chamber pressurised at a pressure above ambient pressure and a gas washout vent. The loop is fastened to the interior surface of the sealing structure at a connection point that forms a first curved surface from a first side of the loop and a second curved surface from a second side of the loop the interior surface of the sealing structure.

Claims (22)

1. A patient interface for sealed delivery of a flow of air at a continuously positive pressure with respect to ambient air re to an entrance to the patient’s airways including at least entrance of a patient’s nares, wherein the patient interface is ured to maintain a therapy pressure in a range of about 3 cmH2O to about 40 cmH2O above ambient air pressure in use, throughout the patient’s atory cycle, while the patient is ng, to ameliorate sleep disordered breathing, the patient interface comprising: a sealing structure to seal the patient interface against the patient’s face, the sealing structure comprising: a sealing surface configured to form a seal around a periphery of the entrance to the patient’s airways, and a loop comprising a n of the sealing structure folded inwards of an outer ter of the sealing structure and attached to an interior surface of the sealing structure such that the interior surface of the sealing structure is continuous about the loop, an exterior portion of the loop that is opposite the interior surface of the sealing structure comprises a portion of the sealing e; a positioning and stabilising structure to maintain the sealing structure in sealing contact with an area surrounding an entrance to the patient’s airways while ining a therapeutic re at the entrance to the patient’s airways; a plenum chamber rised at a pressure above ambient pressure in use; and a gas washout vent configured to allow a flow of patient exhaled CO2 to an exterior of the patient interface to minimise rebreathing of exhaled CO2 by the patient, wherein the loop is fastened to the interior surface of the sealing structure at a connection point that forms a first curved surface from a first side of the loop and a second curved surface from a second side of the loop to the interior surface of the sealing structure.
2. The patient interface according to claim 1, further comprising a sealing flap protruding towards an inner perimeter of the sealing structure.
3. The patient interface ing to claim 2, wherein the sealing flap is configured to form a seal against the sides of the nose above the nasal bones and nt the sides of the nose above the maxilla, in the depression adjacent the endocanthion of the patient.
4. The patient interface according to claim 3, wherein the sealing flap is configured to avoid g against the ala.
5. The patient interface according to any one of claims 1 to 4, wherein the portion of the sealing surface has increased flexibility ve to a remaining n of the loop.
6. The patient interface according to any one of claims 1 to 5, wherein the portion of the sealing e comprises a thinner wall section than a remaining portion of the loop.
7. The patient interface ing to any one of claims 1 to 5, wherein the portion of the sealing surface comprises a thicker wall section than a remaining portion of the loop.
8. The patient interface according to any one of claims 1 to 7, wherein the sealing surface comprises a region of reduced friction to reduce adherence with the patient’s face.
9. The patient ace according to claim 8, wherein the region of reduced friction is a frosted surface.
10. The patient interface according to claim 8 or 9, wherein the region of reduced friction is adapted to allow the sides of the nose of the patient to slide freely against the sealing surface.
11. The t interface according to any one of claims 1 to 10, n the sealing surface defines an area of the g structure adapted to contact the patient’s face.
12. The patient ace according to claim 11, wherein the portion of the sealing surface is part of the area of the sealing structure adapted to contact the patient’s face.
13. The patient interface according to any one of claims 1 to 12, wherein the seal is continuous.
14. The patient interface according to any one of claims 1 to 13, wherein the loop is located to contact or be alongside the patient’s ala.
15. The patient interface according to claim 14, wherein the loop is located so that the exterior portion of the loop is adapted to contact or be located alongside the patient’s ala.
16. The patient interface ing to claim 15, wherein the exterior portion of the loop is adapted to be located ntially parallel to the patient’s ala.
17. The patient interface according to any one of claims 1 to 16, further comprising a second loop comprising a second portion of the sealing ure folded towards the interior of the sealing structure and attached to the interior surface of the sealing structure such that the interior surface of the g structure is continuous about the second loop, an exterior n of the second loop that is opposite the interior surface of the sealing structure ses a second portion of the sealing surface.
18. The patient interface according to claim 17, wherein the second loop forms a hollow interior that is in fluid communication with the pressure above t pressure in the plenum r during use.
19. The patient interface according to claim 17 or 18, wherein the loop or the loop and the second loop each comprise two open ends.
20. The patient interface according to any one of claims 17 to 19, wherein the loop, or the loop and the second loop, are adapted to prevent the g surface from a blowout when the patient interface is internally pressurized and adjusted by the patient.
21. The patient ace according to any one of claims 17 to 20, wherein the second loop is fastened to the interior surface of the sealing structure at a second connection point that forms a first curved e from a first side of the second loop and a second curved surface from a second side of the second loop to the interior surface of the sealing structure.
22. The patient interface according to any one of claims 1 to 21, wherein the loop forms a hollow interior that is in fluid ication with the pressure above ambient pressure in the plenum chamber during use. Nasai cavity Crai cavity ”ii/14% Larynx m1“: Vocal folds Vii-:71? Aiveoiar sacs Oesophagus Trachea Bronchus Heart Diaphragm Copyright 2012 ResMed Limited Nasai cavity Nasai bone Laterai nasai cartiiage Greater aim—.— cartiiage Hard paiate Soft paiate Lip superior Lip or Oropharynx ~——————————————————Tongue Epigiottis Vecai folds Esophagus Trachea Copyright 2012 ResMed Limited Sagittal plane Inferior Right Left Endocanthion Nasai aia Lip Superior Nasoiabiai suicus Upper Vermiiiion Lower Vermiiiion Cheiiion Lip inferior FIG. ZC radia ymward. || . radially outward Copyright 2012 ResMed Limited 5:33 Emmi commeEQ coamQSO $6356 Btm?oa Qmwmcnsm 5285 52m: a: 8:5: Q3 masm Ecwazm 5:85 mammcoi DN 8.23m .0."— 28 5235‘ 39:38 _. :20) 3 38‘s» 5 '2‘:'. E co ‘5 .g‘: . 3 3— I O '— 40:: I I '- .§ 32 g. 4 ' "U C é) .5 ‘6 E L” 3 a: '5 LL. N a: D. H— N 3 5 ' (D 8 L— ”- .9 f» 5— .— E % Saggitai plane Pronasale columella ~~ Subnasale n.\ov ,w‘ v n .Wi. A) 1: w...tini- (4 «spun Upper vermillion Lip or Naso—Iabial sulcus Fi?. 2F Copyright 2012 ResMed Limited
NZ774241A 2016-03-24 Patient Interface with Blowout Prevention for Seal-Forming Portion NZ774241B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201562138009P 2015-03-25 2015-03-25
US201562222503P 2015-09-23 2015-09-23
NZ735636A NZ735636B2 (en) 2016-03-24 Patient interface with blowout prevention for seal-forming portion

Publications (2)

Publication Number Publication Date
NZ774241A NZ774241A (en) 2023-12-22
NZ774241B2 true NZ774241B2 (en) 2024-03-26

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