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NZ791571B2 - Patient interface - Google Patents
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NZ791571B2 - Patient interface - Google Patents

Patient interface

Info

Publication number
NZ791571B2
NZ791571B2 NZ791571A NZ79157119A NZ791571B2 NZ 791571 B2 NZ791571 B2 NZ 791571B2 NZ 791571 A NZ791571 A NZ 791571A NZ 79157119 A NZ79157119 A NZ 79157119A NZ 791571 B2 NZ791571 B2 NZ 791571B2
Authority
NZ
New Zealand
Prior art keywords
plenum chamber
patient
patient interface
seal
constructed
Prior art date
Application number
NZ791571A
Other versions
NZ791571A (en
Inventor
Aaron Samuel Davidson
Kam Man Law
Lemmy Nga
Rupert Christian Scheiner
Original Assignee
ResMed Pty Ltd
Filing date
Publication date
Application filed by ResMed Pty Ltd filed Critical ResMed Pty Ltd
Priority claimed from NZ772916A external-priority patent/NZ772916A/en
Publication of NZ791571A publication Critical patent/NZ791571A/en
Publication of NZ791571B2 publication Critical patent/NZ791571B2/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
    • A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes operated by electrical means
    • A61M16/022—Control means therefor
    • A61M16/024—Control means therefor including calculation means, e.g. using a processor
    • 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
    • A61M16/0666—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
    • 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
    • A61M16/0816—Joints or connectors
    • A61M16/0833—T- or Y-type connectors, e.g. Y-piece
    • 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
    • A61M16/14—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
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
    • 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
    • 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
    • A61M2202/0014—Special media to be introduced, removed or treated removed from the body
    • 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
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3365—Rotational speed
    • 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
    • A61M2205/3546—Range
    • A61M2205/3553—Range remote, e.g. between patient's home and doctor's office
    • 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
    • A61M2205/3546—Range
    • A61M2205/3561—Range local, e.g. within room or hospital
    • 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
    • A61M2205/42—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
    • A61M2205/58—Means for facilitating use, e.g. by people with impaired vision
    • A61M2205/583—Means for facilitating use, e.g. by people with impaired vision by visual feedback

Abstract

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 seal with a region of the patient’s face surrounding an entrance to the patient’s airways, said seal-forming structure having a hole therein such that the flow of air at said therapeutic pressure is delivered to at least an entrance to the patient’s nares and, the seal-forming structure being 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 configured to hold the seal-forming structure in a therapeutically effective position on the patient’s head, the positioning and stabilising structure comprising a tie, and 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 vent structure configured 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 leave the patient’s mouth uncovered during therapy, wherein the plenum chamber further comprises a pair of plenum chamber connectors, each of the plenum chamber connectors positioned on a respective lateral side of the plenum chamber, wherein the positioning and stabilising structure further comprises a tube having a pair of ends, wherein the positioning and stabilising structure further comprises a clip joined to a clip overmold at each of the ends, the clip overmold being joined to the tube at a corresponding one of the ends, wherein each of the ends is removably connected to a corresponding plenum chamber connector by engagement of the clip with the corresponding plenum chamber connector, and wherein the positioning and stabilising structure further comprises a lip at each of the ends, the lip being configured to seal with the corresponding plenum chamber connector when the ends of the positioning and stabilising structure are connected to a corresponding plenum chamber connector.

Claims (27)

1. A patient interface comprising: a plenum chamber pressurisable to a therapeutic pressure of at least 6 cmH O 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 seal with a region of the patient’s face surrounding an entrance to the patient’s airways, said seal-forming structure having a hole therein such that the flow of air at said therapeutic pressure is delivered to at least an entrance to the patient’s nares and, the seal-forming structure being 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 configured to hold the seal-forming structure in a therapeutically effective position on the patient’s head, the positioning and stabilising structure comprising a tie, and 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 vent structure configured 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 plenum chamber further comprises a pair of plenum chamber connectors, each of the plenum chamber connectors positioned on a respective lateral side of the plenum chamber, wherein the positioning and stabilising structure further comprises a tube having a pair of ends, P1416NZ2 / 506301NZDIV1 wherein the positioning and stabilising structure further comprises a clip joined to a clip overmold at each of the ends, the clip overmold being joined to the tube at a corresponding one of the ends, wherein each of the ends is removably connected to a corresponding plenum chamber connector by engagement of the clip with the corresponding plenum chamber connector, and wherein the positioning and stabilising structure further comprises a lip at each of the ends, the lip being configured to seal with the corresponding plenum chamber connector when the ends of the positioning and stabilising structure are connected to a corresponding plenum chamber connector.
2. The patient interface of claim 1, wherein the tube is constructed from a first silicone material, wherein each of the clip overmolds is constructed from a second silicone material that is different from the first silicone material, and wherein each of the clips is constructed from a first plastic material that is relatively rigid.
3. The patient interface of claim 2, wherein the first silicone material is unable to bond with the first plastic material.
4. The patient interface of one of claim 2 or claim 3, wherein the first silicone material is unable to chemically bond with the first plastic material.
5. The patient interface of one of claims 2 to 4, wherein the second silicone material is chemically bondable to the first silicone material and to the first plastic material.
6. The patient interface of one of claims 2 to 5, wherein the tube is constructed from a single, homogenous piece of the first silicone material. P1416NZ2 / 506301NZDIV1
7. The patient interface of one of claims 2 to 6, wherein each of the clip overmolds is constructed from a single, homogeneous piece of the second silicone material.
8. The patient interface of one of claims 2 to 7, wherein each of the clips is constructed from a single, homogeneous piece of the first plastic material.
9. The patient interface of one of claims 2 to 8, wherein the plenum chamber is constructed from a second plastic material.
10. The patient interface of claim 9, wherein the second plastic material and the first plastic material are the same.
11. The patient interface of claim 9, wherein the second plastic material and the first plastic material are different.
12. The patient interface of any one of claims 1 to 11, wherein each of the plenum chamber connectors further comprises a pair of slots such that the plenum chamber connectors are deformable to a reduced cross-section.
13. The patient interface of one of claims 2 to 12, wherein each of the plenum chamber connectors is configured to be connected to a corresponding one of the clips with a snap-fit.
14. The patient interface of one of claims 2 to 13, wherein each of the clips and each of the clip overmolds is positioned completely internally of a corresponding end of the tube.
15. The patient interface of one of claims 2 to 14, wherein when the ends of the tube are connected to corresponding ones of the plenum chamber connectors, the plenum chamber connectors are positioned completely internally of a corresponding end of the tube.
16. The patient interface of one of claims 2 to 15, wherein each of the plenum chamber connectors further comprises a chamfered edge and each of the clips further P1416NZ2 / 506301NZDIV1 comprises a notch, and the chamfered edge and the corresponding notch being configured to engage with a snap-fit.
17. The patient interface of any one of claims 1 to 16, wherein the patient interface is configured to leave the patient’s mouth uncovered during therapy.
18. The patient interface of any one of claims 1 to 17, wherein the seal-forming structure is nasal pillows.
19. The patient interface of any one of claims 1 to 17, wherein the seal-forming structure is a nasal cradle.
20. The patient interface of any one of claims 1 to 16, wherein the seal-forming structure is an oro-nasal cushion.
21. The patient interface of any one of claims 1 to 20, wherein the vent structure comprises a plurality of vent holes formed in the plenum chamber.
22. The patient interface of any one of claims 1 to 20, wherein the vent structure comprises a vent insert that is removably attached to the plenum chamber at a vent insert opening.
23. The patient interface of any one of claims 1 to 22, further comprising an elbow rotatably connected to the tube of the positioning and stabilising structure between each of the ends.
24. The patient interface of claim 23, wherein the elbow comprises a plurality of elbow vent holes.
25. The patient interface of any one of claims 1 to 24, wherein the plenum chamber is constructed from a relatively rigid material and the seal-forming structure is constructed from a relatively flexible material joined to the relatively rigid material.
26. The patient interface of claim 24, wherein the relatively rigid material is polycarbonate and the relatively flexible material is silicone. P1416NZ2 / 506301NZDIV1
27. The patient interface of any one of claims 1 to 24, wherein the plenum chamber and the seal-forming structure are constructed from a single piece of silicone.
NZ791571A 2019-08-20 Patient interface NZ791571B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862764992P 2018-08-20 2018-08-20
NZ772916A NZ772916A (en) 2018-08-20 2019-08-20 Patient interface

Publications (2)

Publication Number Publication Date
NZ791571A NZ791571A (en) 2025-09-26
NZ791571B2 true NZ791571B2 (en) 2026-01-06

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