Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/zhenxiangba/zhenxiangba.com/public_html/phproxy-improved-master/index.php on line 456
NZ792426B2 - Vent and vent adaptor for patient interface - Google Patents
[go: Go Back, main page]

NZ792426B2 - Vent and vent adaptor for patient interface - Google Patents

Vent and vent adaptor for patient interface

Info

Publication number
NZ792426B2
NZ792426B2 NZ792426A NZ79242617A NZ792426B2 NZ 792426 B2 NZ792426 B2 NZ 792426B2 NZ 792426 A NZ792426 A NZ 792426A NZ 79242617 A NZ79242617 A NZ 79242617A NZ 792426 B2 NZ792426 B2 NZ 792426B2
Authority
NZ
New Zealand
Prior art keywords
p1203nz4
orifices
base
membrane
vent
Prior art date
Application number
NZ792426A
Other versions
NZ792426A (en
Inventor
Muditha Pradeep Dantanarayana
Charles Harry Finch
Justin John Formica
Richard Llewelyn Jones
Joseph Samuel Ormrod
Chia Ik Tan
Jamie Graeme Wehbeh
Original Assignee
ResMed Pty Ltd
Filing date
Publication date
Priority claimed from PCT/AU2016/050893 external-priority patent/WO2017049358A1/en
Application filed by ResMed Pty Ltd filed Critical ResMed Pty Ltd
Publication of NZ792426A publication Critical patent/NZ792426A/en
Publication of NZ792426B2 publication Critical patent/NZ792426B2/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
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative 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
    • 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
    • A61M16/0666—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
    • 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
    • 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
    • A61M16/20—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
    • 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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/24—Check- or non-return valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
    • F16K15/145—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery the closure elements being shaped as a solids of revolution, e.g. cylindrical or conical

Abstract

patient interface comprising a vent system for use during respiratory therapy with a flow of pressurized gas to provide a continuous vent flow of gas to discharge gas exhaled by the patient from a pressurized volume. The vent system includes a vent housing (3401) having an outer wall (3402) and an inner wall (3410), the inner wall (3410) defining an inlet for the flow of gas. A base is positioned between the outer wall (3402) and the inner wall (3410). The base comprises an outer base (3403) and an inner base (3406) having a plurality of first orifices (3407) extending through the inner base (3406) and a plurality of second orifices (3404) passing through the outer base (3403), being positioned radially outward of the plurality of first orifices with respect to a central axis through the base. The vent system includes a membrane (3430) adjacent to the base. The outer base (3403) comprises a plurality of lateral membrane supports (3405) configured to prevent the membrane (3430) from covering the second orifices (3404). An increase in pressure within the pressurized volume causes the membrane (3430) to restrict a first vent flow through the first orifices (3407). Restriction of the first vent flow through the first orifices (3407) causes an increase in the second vent flow through the second orifices (3404) such that the vent flow through the first orifices (3407) and the second orifices (3404) is approximately constant throughout the therapeutic pressure range.

Claims (13)

1. A patient interface comprising: a plenum chamber pressurisable to a therapeutic pressure of at least 6 cmH2O above ambient air pressure, said plenum chamber including a plenum chamber inlet port sized and structured to receive a flow of air at the therapeutic pressure for breathing by a patient; 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 such that the flow of air at said therapeutic pressure is delivered to at least an entrance to the patient’s nares, 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 positioning and stabilising structure to provide an elastic 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, and a portion of the tie being dimensioned and structured to engage in use a portion of the patient’s head in a region of a parietal bone, wherein the positioning and stabilising structure has a non-rigid decoupling portion; and a vent system for use with a patient interface during respiratory therapy of a patient with a therapy flow of gas pressurized above ambient pressure, the vent system providing a vent flow of gas to discharge gas exhaled by the patient from a pressurized volume, the vent flow being continuous during the respiratory therapy, the vent system comprising: a vent housing comprising a base with an outer base and an inner base, having at a plurality of first orifices extending through the inner base to allow gas to be discharged to atmosphere from the pressurized volume; a plurality of second orifices passing through the outer base to allow gas to be discharged to atmosphere from the pressurized volume; and a membrane positioned adjacent to the base, wherein the pressurized volume is in fluid communication with atmosphere through the first orifices and the second orifices throughout a therapeutic pressure range, wherein the membrane is configured such that an increase in pressure within the pressurized volume causes the membrane to restrict a first vent flow through the first orifices throughout the therapeutic pressure range, said outer base comprises a plurality of lateral membrane supports configured to prevent the membrane from covering the second orifices, wherein restriction of the first vent flow through the first orifices causes an increase in the second vent flow through the second orifices such that the vent flow through the first orifices and the second orifices is approximately constant throughout the therapeutic pressure range, wherein the patient interface is configured to allow the patient to breathe from ambient through their mouth in the absence of a flow of pressurised air through the plenum chamber inlet port, or the patient interface is configured to leave the patient’s mouth uncovered, wherein the vent housing comprises an outer wall and an inner wall, the inner wall defining an inlet for the therapy flow of gas, and wherein the base is positioned between the outer wall and the inner wall.
2. The patient interface of claim 1, wherein the vent flow is greater than or equal to the sum of the first vent flow and the second vent flow.
3. The patient interface of claim 1 or 2, wherein the membrane is elastically deformable toward the base in use such that the first vent flow is restricted as the membrane is deflected towards the base.
4. The patient interface of claim 3, wherein the membrane is configured to deflect closer to the base as the therapeutic pressure increases above a threshold therapeutic pressure value, and wherein the membrane is configured to decrease the first vent flow such that the second vent flow increases as the membrane is deflected closer to the base due to increasing the therapeutic pressure above the threshold therapeutic pressure value.
5. The patient interface of any one of claims 1 to 4, further comprising a plurality of membrane spacers extending from the inner base, wherein the membrane is supported over the plurality of first orifices on the outer base and the membrane spacers, wherein the vent housing comprises a base divider between the inner base and the outer base, and wherein the membrane is supported over the plurality of first orifices on the base divider and the membrane spacers.
6. The patient interface of any one of claims 1 to 5, wherein the outer base comprises a plurality of lateral membrane supports that are configured to prevent the membrane from covering the plurality of second orifices.
7. The patient interface of any one of claims 1 to 6, wherein the outer wall, the inner wall, the inner base, the outer base, and the membrane are circular, and wherein the outer wall, the inner wall, the inner base, the outer base, and the membrane are concentric.
8. The patient interface of claim 1, wherein the vent housing comprises a shaft extending from the base to receive the therapy flow of gas, the first orifices passing through the base, and the second orifices passing through the shaft.
9. The patient interface of claim 8, further comprising a diffuser, wherein the first orifices and the second orifices are oriented such that the vent flow passing through the first orifices and the second orifices intersects outside of the vent housing, and wherein the vent flow passing through the first orifices and the second orifices intersects within the diffuser.
10. The patient interface of any one of claims 1 to 9, wherein the membrane comprises an elastically deformable material.
11. The patient interface of any one of claims 1 to 10, wherein the vent housing is formed from a single, homogeneous piece of a relatively rigid material.
12. The patient interface of any one of claims 1 to 11, wherein the membrane is not attached to the vent housing such that the membrane is freely movable towards and away from the base.
13. The patient interface of claim 12, further comprising a vent connector tube or a decoupling structure to fluidly connect the vent system to the plenum chamber. P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3 P1203NZ4 / 506240NZDIV3
NZ792426A 2017-09-21 Vent and vent adaptor for patient interface NZ792426B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201662397544P 2016-09-21 2016-09-21
PCT/AU2016/050893 WO2017049358A1 (en) 2015-09-23 2016-09-23 Vent adaptor for a respiratory therapy system
US201762443305P 2017-01-06 2017-01-06
NZ751732A NZ751732B2 (en) 2017-09-21 Vent and vent adaptor for patient interface

Publications (2)

Publication Number Publication Date
NZ792426A NZ792426A (en) 2025-05-02
NZ792426B2 true NZ792426B2 (en) 2025-08-05

Family

ID=

Similar Documents

Publication Publication Date Title
JP2022060345A5 (en)
EP4556041A3 (en) Headgear tubing for a patient interface
CN102015000B (en) Exhaust assembly
US8517022B2 (en) Minimally invasive nasal cannula
EP4659787A3 (en) Textile vent assembly
EP4241813A3 (en) Patient interface
EP4279111A3 (en) Cpap system
US20150320962A1 (en) Rotary fluid coupler
NZ772763A (en) Headgear for a patient interface
EP4470588A3 (en) Textile patient interface
NZ770002A (en) Nasal mask system
NZ772916A (en) Patient interface
JP2017518125A5 (en)
EP4649986A3 (en) Respiratory user interface
EP4678214A3 (en) Patient interface
NZ796362A (en) Patient interface
EP4585245A3 (en) Patient interface
US20170246414A1 (en) Breathing mask with nasal cannula
JP2024532864A5 (en)
EP4537881A3 (en) Seal-forming structure for patient interface including textile seal member
NZ792426B2 (en) Vent and vent adaptor for patient interface
US11241596B2 (en) Breathing mask and flushing arrangement for a breathing mask
NZ792424B2 (en) Vent and vent adaptor for patient interface
NZ792424A (en) Vent and vent adaptor for patient interface
NZ795792B2 (en) Vent adaptor for a respiratory therapy system