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NZ796358B2 - Patient interface - Google Patents
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NZ796358B2 - Patient interface - Google Patents

Patient interface

Info

Publication number
NZ796358B2
NZ796358B2 NZ796358A NZ79635819A NZ796358B2 NZ 796358 B2 NZ796358 B2 NZ 796358B2 NZ 796358 A NZ796358 A NZ 796358A NZ 79635819 A NZ79635819 A NZ 79635819A NZ 796358 B2 NZ796358 B2 NZ 796358B2
Authority
NZ
New Zealand
Prior art keywords
p1575nz2
plenum chamber
patient
seal
lateral support
Prior art date
Application number
NZ796358A
Other versions
NZ796358A (en
Inventor
Matthew Eves
Lachlan Richard Goldspink
Original Assignee
ResMed Pty Ltd
Filing date
Publication date
Application filed by ResMed Pty Ltd filed Critical ResMed Pty Ltd
Publication of NZ796358A publication Critical patent/NZ796358A/en
Publication of NZ796358B2 publication Critical patent/NZ796358B2/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
    • A61M16/06—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. 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
    • A61M16/0683—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
    • A61M16/0883—Circuit type
    • 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
    • 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
    • A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/208—Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
    • 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
    • A61M2205/02—General characteristics of the apparatus characterised by a particular materials
    • A61M2205/0216—Materials providing elastic properties, e.g. for facilitating deformation and avoid breaking
    • 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
    • A61M2205/02—General characteristics of the apparatus characterised by a particular materials
    • A61M2205/0222—Materials for reducing friction
    • 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
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3368—Temperature
    • 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
    • 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
    • A61M2210/0625—Mouth

Abstract

plenum chamber for a patient interface, the plenum chamber pressurisable to a therapeutic pressure, having an oral portion and a nasal portion, and comprising 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; a shell configured to support the seal-forming structure, the shell having one or more plenum chamber inlet ports; wherein the shell comprises two lateral support portions protruding in a superior direction into and within an at least partially anterior wall of the seal-forming structure in the nasal portion, each of the lateral support portions being spaced apart laterally along a top edge of the shell and protruding into and within the at least partially anterior wall to a greater extent than a central portion of the shell along the top edge of the shell.

Claims (17)

1. A plenum chamber for a patient interface, the plenum chamber pressurisable to a therapeutic pressure of at least 6 cmH2O above ambient air pressure, the plenum chamber having an oral portion and a nasal portion, the plenum chamber comprising: 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, said seal-forming structure having one or more holes therein such that the flow of air at said therapeutic pressure is delivered to an entrance to the patient’s nares and to the patient’s mouth via the holes, the seal-forming structure constructed and arranged to maintain said therapeutic pressure in the plenum chamber throughout the patient’s respiratory cycle in use; a shell configured to support the seal-forming structure, the shell having 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; wherein the shell comprises two lateral support portions protruding in a superior direction into and within an at least partially anterior wall of the seal- forming structure in the nasal portion, each of the lateral support portions being spaced apart laterally along a top edge of the shell and protruding into and within the at least partially anterior wall to a greater extent than a central portion of the shell along the top edge of the shell.
2. The plenum chamber of claim 1, wherein the lateral support portions each have a curved superior boundary.
3. The plenum chamber of claim 2, wherein curvature of the curved superior boundary substantially matches or follows curvature of a superior periphery of the seal-forming structure. P1575NZ2
4. The plenum chamber of claim 2 or claim 3, wherein the lateral support portions each have an inferior boundary flatter than the curved superior boundaries.
5. The plenum chamber of any one of claims 1 to 4, wherein the plenum chamber comprises two plenum chamber inlet ports.
6. The plenum chamber of claim 5, wherein the plenum chamber inlet ports are each configured to connect to a respective conduit forming part of a positioning and stabilising structure.
7. The plenum chamber of claim 5 or claim 6, wherein a superior periphery of each of the two plenum chamber inlet ports is formed by a respective one of the lateral support portions.
8. The plenum chamber of any one of claims 1-7, wherein the lateral support portions are stiffer than regions of the plenum chamber superior to the lateral support portions.
9. The plenum chamber of any one of claims 1-8, wherein the lateral support portions are positioned opposite the patient’s respective nasal alae in use.
10. The plenum chamber of any one of claims 1-9, wherein the lateral support portions extend superiorly 35-65% of the distance between a base of the nasal portion on an anterior side of the plenum chamber and a superior-most point of the plenum chamber.
11. The plenum chamber of any one of claims 1-10, wherein the seal-forming structure comprises a central portion configured to form a seal to an inferior periphery of the patent’s nose surrounding the patient’s nares and to the patient’s lip superior in use.
12. The plenum chamber of claim 11, wherein the seal-forming structure comprises intermediate portions provided between the central portion and the lateral support portions, the seal-forming structure having a greater thickness in the intermediate portions than in the central portion. P1575NZ2
13. The plenum chamber of claim 12, wherein at least part of each intermediate portion is provided superior and anterior to a respective lateral support portion.
14. The plenum chamber of any one of claims 1-13, wherein the seal-forming structure comprises lateral-facing posterior portions provided between respective intermediate portions and lateral support portions on each side of the nasal portion, the seal-forming structure having a greater thickness in the posterior lateral facing portions than in the intermediate portions.
15. The plenum chamber of claim 14, wherein at least part of each lateral-facing posterior portion is provided superior and posterior to a respective lateral support portion.
16. The plenum chamber of any one of claims 1 to 15, wherein the nasal portion of the plenum chamber comprises posterior corners configured to lie on the patients face proximate nasolabial creases on the patient’s face in use.
17. A patient interface comprising: a plenum chamber according to any one of claims 1-16; a positioning and stabilising structure to provide a force to hold the seal-forming structure in a therapeutically effective position on the patient’s head, the positioning and stabilising structure comprising a tie, the tie being constructed and arranged so that at least a portion overlies a region of the patient’s head superior to an otobasion superior of the patient’s head in use; a vent structure to allow a continuous flow of gases exhaled by the patient from an interior of the plenum chamber to ambient, said vent structure being sized and shaped to maintain the therapeutic pressure in the plenum chamber in use; wherein the patient interface is configured to allow the patient to breath from ambient through their mouth in the absence of a flow of pressurised air through the plenum chamber inlet port. P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2 P1575NZ2
NZ796358A 2019-03-28 Patient interface NZ796358B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862649376P 2018-03-28 2018-03-28
NZ766981A NZ766981B2 (en) 2019-03-28 Patient interface

Publications (2)

Publication Number Publication Date
NZ796358A NZ796358A (en) 2025-07-25
NZ796358B2 true NZ796358B2 (en) 2025-10-29

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