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
NZ778165B2 - Patient Interface with Volume Reducing Member - Google Patents
[go: Go Back, main page]

NZ778165B2 - Patient Interface with Volume Reducing Member - Google Patents

Patient Interface with Volume Reducing Member

Info

Publication number
NZ778165B2
NZ778165B2 NZ778165A NZ77816516A NZ778165B2 NZ 778165 B2 NZ778165 B2 NZ 778165B2 NZ 778165 A NZ778165 A NZ 778165A NZ 77816516 A NZ77816516 A NZ 77816516A NZ 778165 B2 NZ778165 B2 NZ 778165B2
Authority
NZ
New Zealand
Prior art keywords
patient
chamber
patient interface
heat
interface according
Prior art date
Application number
NZ778165A
Other versions
NZ778165A (en
Inventor
Charles Harry Finch
Original Assignee
ResMed Pty Ltd
Filing date
Publication date
Application filed by ResMed Pty Ltd filed Critical ResMed Pty Ltd
Publication of NZ778165A publication Critical patent/NZ778165A/en
Publication of NZ778165B2 publication Critical patent/NZ778165B2/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
    • A61M16/06—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
    • A61M16/0683—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
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1045—Devices for humidifying or heating the inspired gas by using recovered moisture or heat from the expired gas
    • 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
    • A61M16/22—Carbon dioxide-absorbing devices ; Other means for removing 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
    • 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
    • A61M2205/02—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
    • A61M2205/42—Reducing noise
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

Abstract

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 cmH2O to about 30 cmH2O above ambient air pressure in use, throughout the patient’s respiratory cycle, while the patient is sleeping, to ameliorate sleep disordered breathing; said patient interface comprising: a cushion assembly adapted to form a seal around the patient’s nose and/or mouth, the cushion assembly forming a plenum chamber pressurised at a pressure above ambient pressure in use; 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; a heat and moisture exchanger provided within the plenum chamber between the patient’s airways and the gas washout vent; at least one leak port provided to an anterior side of the heat and moisture exchanger; and at least one baffle member provided within the plenum chamber to reduce an internal volume of the plenum chamber, wherein the at least one baffle member is arranged to separate the plenum chamber into a main chamber and at least one peripheral chamber, the main chamber comprising a main volume of the plenum chamber for delivery of the therapy pressure, and the at least one peripheral chamber comprising a deadspace volume of the plenum chamber, wherein the main volume is adapted to be in direct fluid communication with at least the entrance to the patient’s nares, the heat and moisture exchanger, and the gas washout vent, and wherein the at least one leak port is arranged to allow any inspiratory flow into the at least peripheral chamber to bypass the heat and moisture exchanger prior to flowing into the at least peripheral chamber.

Claims (15)

1. A patient interface for sealed delivery of a flow of air at a continuously positive pressure with respect to t 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 cmH2O to about 30 cmH2O above ambient air pressure in use, throughout the patient’s respiratory cycle, while the patient is sleeping, to ameliorate sleep disordered breathing; said t interface comprising: a cushion assembly adapted to form a seal around the patient’s nose and/or mouth, the cushion assembly forming a plenum chamber pressurised at a pressure above ambient pressure in use; a gas washout vent configured to allow a flow of patient exhaled CO2 to an or of the patient interface to minimise rebreathing of exhaled CO2 by the patient; a heat and moisture exchanger provided within the plenum chamber n the patient’s airways and the gas washout vent; at least one leak port provided to an anterior side of the heat and moisture exchanger; and at least one baffle member provided within the plenum chamber to reduce an internal volume of the plenum chamber, wherein the at least one baffle member is ed to separate the plenum chamber into a main chamber and at least one peripheral chamber, the main chamber comprising a main volume of the plenum chamber for delivery of the therapy pressure, and the at least one peripheral chamber comprising a deadspace volume of the plenum chamber, wherein the main volume is adapted to be in direct fluid communication with at least the ce to the patient’s nares, the heat and moisture exchanger, and the gas washout vent, and wherein the at least one leak port is arranged to allow any inspiratory flow into the at least eral chamber to bypass the heat and re exchanger prior to flowing into the at least peripheral chamber. ResMed Ref: Z2 / Our ref: 506155NZDIV1
2. The patient interface according to claim 1, wherein the at least one baffle member includes an end portion adapted to be spaced from the patient’s face.
3. The patient interface according to any one of claims 1 to 2, wherein the at least one baffle member is structured and ed to direct flow such that t tion and patient exhalation throughout the patient’s respiratory cycle occurs via the main volume.
4. The patient interface according to any one of claims 1 to 3, n the at least one baffle member is structured and arranged to direct expiratory flow away from the at least one peripheral chamber and through the heat and moisture exchanger.
5. The patient interface according to any one of claims 1 to 4, wherein the at least one baffle member is structured and arranged to direct inspiratory flow that has already flowed through the heat and moisture exchanger away from the at least one peripheral chamber and towards the patient’s s.
6. The patient interface according to any one of claims 1 to 5, wherein the at least one leak port is arranged to allow any expiratory flow into the at least peripheral chamber to pass through the heat and moisture exchanger prior to flowing into the at least peripheral chamber.
7. The patient interface according to any one of claims 1 to 6, wherein the at least one leak port is arranged to limit re loss from the heat and moisture exchanger.
8. The t interface according to any one of claims 1 to 7, wherein the at least one baffle member is arranged to reduce the effective internal volume of the plenum chamber without altering the seal. ResMed Ref: P1206NZ2 / Our ref: NZDIV1
9. The patient interface according to any one of claims 1 to 8, wherein the ace volume is provided superior the entrance to the patient’s nares.
10. The patient interface according to any one of claims 1 to 9, wherein the deadspace volume is provided inferior the entrance to the patient’s mouth.
11. The t interface according to any one of claims 1 to 10, wherein the at least one baffle member includes an upper or superior baffle member arranged to establish an upper peripheral chamber d to be positioned generally above the patient’s nares.
12. The patient interface according to claim 11, wherein the at least one leak port includes an upper or superior leak port adapted to communicate with the upper peripheral chamber.
13. The patient interface according to any one of claims 1 to 12, wherein the at least one baffle member includes a lower or inferior baffle member arranged to establish a lower peripheral chamber adapted to be positioned lly below the patient’s lower lip.
14. The patient interface according to claim 13, wherein the at least one leak port includes a lower or inferior leak port adapted to icate with the lower peripheral chamber.
15. The patient interface according to any one of claims 1 to 14, wherein the heat and moisture exchanger is supported by a front wall portion of the cushion assembly. Nasai cavity Crai cavity Vocal folds Aiveoiar sacs Oesophagus Trachea \1i “Wiimlillli usummm_m“mm“mmmmmmmmm?mmmmmmmmm_m¥m/2 / M
NZ778165A 2016-07-18 Patient Interface with Volume Reducing Member NZ778165B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201562194451P 2015-07-20 2015-07-20
NZ739176A NZ739176B2 (en) 2016-07-18 Patient interface with volume reducing member

Publications (2)

Publication Number Publication Date
NZ778165A NZ778165A (en) 2024-04-26
NZ778165B2 true NZ778165B2 (en) 2024-07-30

Family

ID=

Similar Documents

Publication Publication Date Title
NZ750820A (en) Heat and moisture exchanger for a patient interface
EP4431140A3 (en) Patient interface
EP4667037A3 (en) Patient interface
EP4548952A3 (en) Patient interface
EP4344720A3 (en) Device for retaining humidity in a patient interface
NZ770002A (en) Nasal mask system
EP4678214A3 (en) Patient interface
EP4647102A3 (en) Dual chamber patient interface with airflow regulation
EP4667038A3 (en) Patient interface having seal-forming structure with varying construction
NZ796361A (en) Patient interface
EP4585245A3 (en) Patient interface
EP4674457A3 (en) Elastomeric seal-forming structure with multiple curvatures
CN206621641U (en) A kind of double-deck anti-leak anesthesia respirator mask
NZ778165B2 (en) Patient Interface with Volume Reducing Member
NZ778165A (en) Patient interface with volume reducing member
NZ778166B2 (en) Patient Interface with Volume Reducing Member
CN206239842U (en) A kind of anesthesia nose cup
NZ778168B2 (en) Patient Interface with Volume Reducing Member
CN205235124U (en) Breathe control valve, breathe control external member and breathing machine
NZ739176B2 (en) Patient interface with volume reducing member
CN201744052U (en) Expiration valve for anesthesia breathing machine
CN208525596U (en) A kind of artificial airway
NZ770085B2 (en) Textile Patient Interface
NZ770257B2 (en) Textile Patient Interface
NZ778249A (en) Headgear for a patient interface