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NZ754925B2 - Vent adaptor for a respiratory therapy system - Google Patents
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NZ754925B2 - Vent adaptor for a respiratory therapy system - Google Patents

Vent adaptor for a respiratory therapy system

Info

Publication number
NZ754925B2
NZ754925B2 NZ754925A NZ75492517A NZ754925B2 NZ 754925 B2 NZ754925 B2 NZ 754925B2 NZ 754925 A NZ754925 A NZ 754925A NZ 75492517 A NZ75492517 A NZ 75492517A NZ 754925 B2 NZ754925 B2 NZ 754925B2
Authority
NZ
New Zealand
Prior art keywords
vent
housing
hme
vent assembly
pressurized gas
Prior art date
Application number
NZ754925A
Other versions
NZ754925A (en
Inventor
Muditha Pradeep Dantanarayana
Justin John Formica
Graeme Wehbeh Jamie
Joseph Samuel Ormrod
Llewelyn Jones Richard
Chia Ik Tan
Original Assignee
ResMed Pty Ltd
Filing date
Publication date
Application filed by ResMed Pty Ltd filed Critical ResMed Pty Ltd
Priority to NZ795792A priority Critical patent/NZ795792B2/en
Priority claimed from PCT/AU2017/051456 external-priority patent/WO2018126295A1/en
Publication of NZ754925A publication Critical patent/NZ754925A/en
Publication of NZ754925B2 publication Critical patent/NZ754925B2/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
    • 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
    • A61M16/08—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
    • A61M16/10—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
    • A61M16/10—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
    • A61M16/10—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
    • A61M16/161—Devices to humidify the respiration air with means for measuring the humidity
    • 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
    • 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
    • A61M2016/0015—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors
    • A61M2016/0018—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors electrical
    • A61M2016/0021—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors electrical with a proportional output signal, e.g. from a thermistor
    • 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
    • A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
    • A61M2016/0033—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
    • 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
    • A61M2205/35—Communication
    • A61M2205/3576—Communication with non implanted data transmission devices, e.g. using external transmitter or receiver
    • A61M2205/3584—Communication with non implanted data transmission devices, e.g. using external transmitter or receiver using modem, internet or Bluetooth®
    • 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
    • A61M2205/35—Communication
    • A61M2205/3576—Communication with non implanted data transmission devices, e.g. using external transmitter or receiver
    • A61M2205/3592—Communication with non implanted data transmission devices, e.g. using external transmitter or receiver using telemetric means, e.g. radio or optical transmission
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/50—General characteristics of the apparatus with microprocessors or computers

Abstract

vent assembly (9100) for a respiratory pressure therapy (RPT) system. The vent assembly includes: a vent housing (9320) having a first orifice with an annular surface around the first orifice configured to receive the flow of pressurized gas from the RPT device and the vent housing having a plurality of holes passing through the annular surface (not shown) to discharge pressurized gas to atmosphere; a membrane (9140) positioned adjacent to the annular surface; a vent housing connector (9160) having a second orifice configured to direct the flow of pressurized gas to the patient interface; a tube (9212) connected to the vent housing connector at the second orifice, the tube being configured to be connected to the patient interface to direct the flow of pressurized gas to the patient interface; and a heat and moisture exchanger (HME) comprising an HME housing (9400) and an HME material within the HME housing. The vent housing (9320) and the vent housing connector (9160) are configured to be connected to, at least in part, form a cavity, and wherein the HME is positioned in the cavity when the vent assembly is assembled. The HME housing (9400) is removably connected to the vent housing (9320) or the vent housing connector (9160) with a snap-fit. The membrane (9140) is movable such that the membrane is urged against the annular surface of the vent housing (9320) as the pressure of the pressurized gas within the vent assembly (9100) increases.

Claims (16)

1. A vent assembly for a respiratory pressure therapy (RPT) system to provide a flow of pressurized gas at a therapeutic pressure of at least 6 cmH O above ambient air pressure from a respiratory pressure therapy (RPT) device to a patient interface to treat a respiratory disorder in a patient, the vent assembly comprising: a vent housing having a first orifice configured to receive the flow of pressurized gas from the RPT device and the vent housing having a plurality of holes to discharge pressurized gas to atmosphere; a vent housing connector having a second orifice configured to direct the flow of pressurized gas to the patient interface; a tube connected to the vent housing connector at the second orifice, the tube being configured to be connected to the patient interface to direct the flow of pressurized gas to the patient interface; and a heat and moisture exchanger (HME) comprising an HME housing and an HME material within the HME housing, wherein the vent housing and the vent housing connector are configured to be connected to, at least in part, form a cavity, wherein the HME is positioned in the cavity when the vent assembly is assembled, wherein the HME housing is removably connected to the vent housing or the vent housing connector with a snap-fit wherein the vent housing further comprises an annular surface around the first orifice and the plurality of holes pass through the annular surface, wherein the vent assembly comprises a membrane positioned adjacent to the annular surface, and wherein the membrane is movable such that the membrane is urged against the annular surface of the vent housing as the pressure of the pressurized gas within the vent assembly increases.
2. The vent assembly of claim 1, further comprising an annular lip extending from around an inner periphery of the vent housing and at least one retaining protrusion extending from the annular lip.
3. The vent assembly of claim 2, further comprising an annular recess extending around an outer periphery of the HME housing, wherein the at least one retaining protrusion and the annular recess are configured to removably connect the HME housing to the vent housing with the snap-fit.
4. The vent assembly of claim 3, wherein the HME housing comprises a patient- side HME housing portion and an atmosphere-side HME housing portion, and wherein vent assembly is configured such that the patient-side HME housing portion is positioned closer to a patient than the atmosphere-side HME housing portion in
5. The vent assembly of claim 4, wherein the annular recess is provided to the atmosphere-side HME housing portion.
6. The vent assembly of claim 4, wherein the annular recess is provided to the patient-side HME housing portion.
7. The vent assembly of any one of claims 2 to 6, further comprising two retaining protrusions positioned opposite one another.
8. The vent assembly of claim 1, wherein an outer periphery of the HME housing includes retaining protrusions configured to be removably received by a recess formed around an inner periphery of the vent housing or the vent housing connector to removably connect the HME housing to the vent housing with the snap-fit.
9. The vent assembly of any one of claims 1 to 8, wherein the plurality of holes comprises a first group of holes and a second group of holes, the first group of holes being proximal to the first orifice relative to the second group of holes.
10. The vent assembly of claim 9, wherein the membrane is shaped and dimensioned such that the membrane does not cover the second group of holes.
11. The vent assembly of claim 9 or 10, wherein the first group of holes is positioned upstream of the second group of holes relative to the flow of pressurized gas.
12. The vent assembly of any of claims 9 to 11, further comprising a retaining structure to retain the membrane in a position adjacent to the annular surface of the vent housing.
13. The vent assembly of any of claims 9 to 12, wherein the membrane further comprises an elastic material.
14. The vent assembly of any of claims 1 to 13, wherein each of the plurality of holes has a shape that converges from an internal surface of the vent housing to an external surface of the vent housing.
15. An RPT system, comprising: the vent assembly of any of claims 1 to 14; an RPT device configured to generate the flow of pressurized gas; a patient interface configured to deliver the flow of pressurized gas to the patient’s airways, the patient interface being non-vented; and a delivery conduit configured to deliver the flow of pressurized gas from the RPT device to the vent assembly.
16. The RPT system of claim 15, wherein the RPT system does not include a humidifier.
NZ754925A 2017-12-22 Vent adaptor for a respiratory therapy system NZ754925B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NZ795792A NZ795792B2 (en) 2017-12-22 Vent adaptor for a respiratory therapy system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762443305P 2017-01-06 2017-01-06
PCT/AU2017/051456 WO2018126295A1 (en) 2017-01-06 2017-12-22 Vent adaptor for a respiratory therapy system

Publications (2)

Publication Number Publication Date
NZ754925A NZ754925A (en) 2025-07-25
NZ754925B2 true NZ754925B2 (en) 2025-10-29

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