US20090126739A1 - Interchangeable Mask Assembly - Google Patents

Interchangeable Mask Assembly Download PDF

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Publication number
US20090126739A1
US20090126739A1 US12/083,779 US8377906A US2009126739A1 US 20090126739 A1 US20090126739 A1 US 20090126739A1 US 8377906 A US8377906 A US 8377906A US 2009126739 A1 US2009126739 A1 US 2009126739A1
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United States
Prior art keywords
cushion
frame
component
assembly
common
Prior art date
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Abandoned
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US12/083,779
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English (en)
Inventor
Eva Ng
Robert Edward Henry
Philip Rodney Kwok
Karthikeyan Selvarajan
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Resmed Pty Ltd
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Resmed Pty Ltd
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Application filed by Resmed Pty Ltd filed Critical Resmed Pty Ltd
Priority to US12/083,779 priority Critical patent/US20090126739A1/en
Assigned to RESMED LIMITED reassignment RESMED LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HENRY, ROBERT EDWARD, KWOK, PHILIP RODNEY, NG, EVA, SELVARAJAN, KARTHIKEYAN
Publication of US20090126739A1 publication Critical patent/US20090126739A1/en
Abandoned legal-status Critical Current

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    • 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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0605—Means for improving the adaptation of the mask to the patient
    • A61M16/0633—Means for improving the adaptation of the mask to the patient with forehead support
    • 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0605—Means for improving the adaptation of the mask to the patient
    • A61M16/0633—Means for improving the adaptation of the mask to the patient with forehead support
    • A61M16/0638—Means for improving the adaptation of the mask to the patient with forehead support in the form of a pivot
    • 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0605—Means for improving the adaptation of the mask to the patient
    • A61M16/0633—Means for improving the adaptation of the mask to the patient with forehead support
    • A61M16/0644—Means for improving the adaptation of the mask to the patient with forehead support having the means for adjusting its position
    • A61M16/065—Means for improving the adaptation of the mask to the patient with forehead support having the means for adjusting its position in the form of a pivot
    • 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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0666—Nasal cannulas or tubing
    • A61M16/0672—Nasal cannula assemblies for oxygen therapy
    • 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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0605—Means for improving the adaptation of the mask to the patient
    • A61M16/0633—Means for improving the adaptation of the mask to the patient with forehead support
    • A61M16/0644—Means for improving the adaptation of the mask to the patient with forehead support having the means for adjusting its position
    • 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0683—Holding devices therefor
    • A61M16/0694—Chin straps
    • 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. mouth-to-mouth respiration; 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
    • A61M2209/00—Ancillary equipment
    • A61M2209/06—Packaging for specific medical equipment
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining

Definitions

  • the present invention relates to a nasal assembly used for treatment, e.g., of Sleep Disordered Breathing (SDB) with Continuous Positive Airway Pressure (CPAP) or Non-Invasive Positive Pressure Ventilation (NPPV).
  • SDB Sleep Disordered Breathing
  • CPAP Continuous Positive Airway Pressure
  • NPPV Non-Invasive Positive Pressure Ventilation
  • Interfaces such as a nasal mask assembly, for use with blowers and flow generators in the treatment of sleep disordered breathing (SDB) typically include a soft-face contacting portion, such as a cushion, and a rigid shell or frame. In use, the interface is held in a sealing position by headgear so as to enable a supply of air at positive pressure (e.g. 2-30 cm H 2 O) to be delivered to the user's or patient's or user's airways.
  • positive pressure e.g. 2-30 cm H 2 O
  • One aspect of the present invention is to provide a mask assembly including at least one main component that can be used with a variety of different styles or types of mask assemblies.
  • a system of breathing arrangements for delivering breathable gas to a patient comprising at least first and second cushion components that are different from one another in at least one aspect, and a common frame assembly configured to support each of the first and second cushion components.
  • a mask assembly for a user comprising a frame having a main body and lateral connector portions; and a cushion component provided to the frame and defining a breathing cavity configured to accommodate at least a portion of the user's nose in use, said cushion component including a face contacting seal portion adapted to sealingly engage with at least a portion of the user's nose in use, said cushion component having an aperture to communicate pressurized gas from the breathing chamber to the user's airways in use, and a main wall portion, opposite from the aperture, extending upwardly away from the frame, said main wall portion including a stiffening portion.
  • a mask assembly for a user comprising a frame having a main body and lateral connector portions; and a cushion component provided to the frame and defining a breathing cavity configured to accommodate at least a portion of the user's nose in use, said cushion component including a face contacting seal portion adapted to sealingly engage with at least a portion of the user's nose in use, said cushion component having an aperture to communicate pressurized gas from the breathing chamber to the user's airways in use, and a main wall portion, opposite from the aperture, extending upwardly away from the frame, said frame being configured for positioning beneath the nose and between the user's upper lip and nose in use.
  • a mask assembly for a user comprising a frame having a main body and lateral connector portions; a cushion component provided to the frame and defining a breathing cavity configured to accommodate at least a portion of the user's nose in use, said cushion component including a face contacting seal portion adapted to sealingly engage with at least a portion of the user's nose in use, said cushion component having an aperture to communicate pressurized gas from the breathing chamber to the user's airways in use, and a main wall portion, opposite from the aperture, extending upwardly away from the frame, said cushion having an upper portion and a lower portion, wherein at least the upper portion includes a nose height adjusting member.
  • a mask assembly for a user comprising a frame; a cushion component provided to the frame and defining a breathing cavity configured to accommodate at least a portion of the user's nose in use, said cushion component including a face contacting seal portion adapted to sealingly engage with at least a portion of the user's nose in use, said cushion component having an aperture to communicate pressurized gas from the breathing chamber to the user's airways in use, and a main wall portion, opposite from the aperture, extending upwardly away from the frame; and a frame adjustment member to adjust the position of the cushion component relative to the frame.
  • a mask assembly for a user comprising a frame; a cushion component provided to the frame and defining a breathing cavity configured to accommodate at least a portion of the user's nose in use, said cushion component including a face contacting seal portion adapted to sealingly engage with at least a portion of the user's nose in use, said cushion component having an aperture to communicate pressurized gas from the breathing chamber to the user's airways in use and a main wall portion, opposite from the aperture, extending upwardly away from the frame; and a chin strap assembly including an extension member provided to each side of the frame and a chin strap having a main chin support portion and straps coupled to the extension members.
  • a mask assembly for a user comprising a common frame; a cushion component provided to the frame and including a pair of nasal prongs or nozzles adapted to engage the user's nares in use; and a supplemental cushion component in the form of a nasal cushion or a full-face cushion, wherein the cushion component and the supplemental cushion component cooperatively seal with the user's face in use.
  • FIG. 1 is a schematic view of a mask assembly according to an embodiment of the present invention.
  • FIGS. 2-13 are views of a mask assembly according to another embodiment of the present invention.
  • FIG. 14 is a perspective view of a mask assembly according to another embodiment of the present invention.
  • FIGS. 15-16 are views of a mask assembly according to yet another embodiment of the present invention.
  • FIGS. 17-19 are views of a portion of a mask assembly according to still another embodiment of the present invention.
  • FIG. 20 is a perspective view of a mask assembly according to another embodiment of the present invention.
  • FIG. 21 is a perspective view of a mask assembly according to another embodiment of the present invention.
  • FIG. 22 is a perspective view of a mask assembly according to another embodiment of the present invention.
  • FIG. 23 is a perspective view of a mask assembly according to another embodiment of the present invention.
  • FIG. 24 is a perspective view of a mask assembly according to another embodiment of the present invention.
  • FIGS. 25-26 are views of a mask assembly according to another embodiment of the present invention.
  • FIGS. 27-31 are views of a mask assembly according to still another embodiment of the present invention.
  • FIG. 1 illustrates an interchangeable mask system 5 according to an embodiment of the present invention.
  • Mask system includes a common frame component 10 , one of two cushion components 15 , 20 , one of two elbow components 25 , 30 , and headgear 35 .
  • the mask system is intended for use in positive pressure therapy for users with obstructive sleep apnea (OSA) or another respiratory disorder.
  • OSA obstructive sleep apnea
  • the common frame 10 has a main body 40 defining a central opening 45 .
  • Main body 40 includes at least two lateral arms 50 , each of which can be coupled to a headgear strap 55 of headgear.
  • the straps may be connected to the frame using a press-fit connector 60 , as is known in the art.
  • Common frame 10 may also include a forehead support 65 that has a bridge 70 provided with forehead pads 75 to rest against the user's forehead in use.
  • Forehead support may be adjustably mounted to the common frame, in a manner known in the art.
  • Common frame 10 is configured to be selectively coupled to one of cushion components 15 , 20 and to one of elbow components 25 , 30 .
  • Cushion components 15 , 20 differ in at least one respect such that one may be more optimal or preferable for use with one user, while another may be more suitable or preferably for use with another user.
  • cushion component 15 may be an ActivaTM component
  • cushion component 20 may be an UltraMirageTM Series II cushion component, both available from ResMed.
  • These cushion components can be significantly different from one another, e.g., the ActivaTM includes a gusset portion 80 and a cushion clip assembly (not shown) which is not incorporated in the UltraMiragTM cushion design.
  • Common frame 10 is also configured for use with either elbow component 25 , or elbow component 30 .
  • Elbow components differ in at least one respect, e.g., each may include gas washout vents that are configured for predetermined washout rates, noise, etc.
  • Common frame 10 is advantageous since it works with a plurality of different cushion components, elbow components, forehead supports, etc., thereby eliminating the need to specifically make the frame for a particular peripheral component, as is the standard.
  • FIGS. 2-13 show a mask system 90 according to another embodiment of the present invention.
  • mask system 90 includes a common frame 95 , a cushion component 100 and a common headgear assembly 105 .
  • Common frame is similar to ResMed's SWIFTTM frame, described in more detail in relation to U.S. patent application Ser. No. 10/781,929, filed Feb. 20, 2004, incorporated herein by reference in its entirety.
  • common frame includes a main body 110 including two lateral connectors 115 .
  • Each lateral connector 115 is provided with a seal portion 120 ( FIG. 4 ).
  • Each seal portion 120 has a channel 125 structured to receive and support a ring shaped portion 130 of a yoke 135 of the headgear assembly 105 .
  • Each seal portion 120 also includes an aperture 140 to receive either an elbow 145 or a plug 150 .
  • each seal portion 120 may receive an elbow 145 , i.e., receive two sources of gas (without the plug).
  • FIG. 3 is an exploded view of cushion component 100 , frame 95 and a clip element 175 , together defining a cushion sub-assembly 155 .
  • FIG. 4 shows the cushion sub-assembly 155 in the assembled condition, along with yoke 135 , seal portion 120 and elbow 145 .
  • FIG. 5 is a cross sectional view of the assembly.
  • FIGS. 6-10 are additional views of the cushion assembly as assembled with lateral headgear straps and associated yokes.
  • Cushion component 100 includes lateral sides 160 configured to engage with corresponding channels 165 formed in the frame 95 .
  • Cushion component 100 includes an aperture 196 (schematically illustrated) to receive the user's nose.
  • End portions 170 of cushion component 100 are wrapped around frame 95 , and clip element 175 is attached to the sub-assembly of the cushion component and the frame, by sliding the clip element over the combined cushion component and frame.
  • FIGS. 4 and 13 are a cross-sectional view showing the sandwich-like connection between the lateral sides of the cushion 170 , the frame 95 and the clip element 175 .
  • FIG. 11 is a top view of the mask assembly in use on a user's head
  • FIG. 12 is a front view.
  • common frame 95 is positioned just below and partially under the user's nose, and above the upper lip of the user. This positioning of the frame to cushion interface closer to the centroid of the mask assembly, which helps keep a low profile (non-obstructive) and reduces moments imposed on the mask assembly tending to pull the mask assembly away from the user's face.
  • the cushion component 100 is bisected (see, FIGS. 4 and 13 ) along the longitudinal axis of the frame to create later sides that wrap around the frame for insertion of the channel.
  • the cushion is not necessarily bisected. Instead, the apertures in the lateral sides of the cushion are simply stretched over the connectors of the frame until a protruding portion of the cushion engages the respective channels of the frame.
  • cushion component 100 has an upper portion 200 that is configured to contact the transition between the bony and cartilage portions of the user's nose.
  • the cushion component is similar to ResMed's VISTATM cushion, as described in U.S. patent application Ser. No. 11/124,251, filed May 9, 2005, incorporated herein by reference.
  • Cushion component 100 has a thickened portion 205 that acts as a pseudo or “soft” frame to provide support for the rest of the membrane of the cushion. Effectively, the thickened portion 205 of the cushion enlarges the “frame” area of the common SwiftTM frame. In this example, the thickened portion 205 has the shape of a semi-circle or trapezoid. See, e.g., FIGS. 2 and 12 .
  • Common headgear assembly 105 is similar to the headgear assembly described in relation to ResMed's U.S. patent application Ser. No. 10/781,929. However, common headgear 105 has some differences. For example, as shown in FIG. 13 , the vectors of the headgear straps 210 are changed.
  • the elbow 145 is omitted for clarity, although the plug 150 is illustrated.
  • the mask assembly includes a gas washout vent 215 .
  • the vent 215 could be on the frame and/or the cushion component.
  • the yoke 130 includes an alignment indicator 220 that aligns with one of a corresponding array of indicators 225 on the cushion/frame subassembly.
  • the cushion/frame subassembly is rotatable relative to the headgear to ensure proper fit.
  • FIG. 14 illustrates a mask assembly 230 include a common frame 235 , a headgear assembly 240 and a cushion component 245 .
  • This embodiment is similar to the prior embodiment, especially as the common frame is the same as described above in relation to FIGS. 2-13 .
  • the cushion component 245 takes the form of a nasal mask, e.g., ResMed's MirageTM type cushion, as described in U.S. Pat. No. 6,112,746, incorporated herein by reference in its entirety.
  • the cushion component 245 is configured to form a breathing cavity that surrounds the nose of the user.
  • the cushion component includes an upper apex portion 250 that makes contact with the bridge of the user's nose, between the eyes.
  • the cushion component 250 may include a thickened section 255 in order to help prevent flopping of the cushion away from the user's face.
  • the thickened section 255 may include a cutout 260 in each corner to reduce force on the nasal bridge region.
  • FIGS. 15-16 show a mask assembly 275 according to another embodiment of the present invention.
  • Mask assembly 275 includes a common frame 280 , a headgear assembly 285 , and a cushion component 290 like that described in relation to FIGS. 2-13 above.
  • One difference in the present embodiment is the positioning of the common frame 280 relative to the user's face/nose.
  • the common frame 280 is positioned above the lower portion of the user's nose, such that the tip of the nose extends below the clip element 295 .
  • the vectors formed by the headgear straps 300 are slightly different than as shown in described in relation to FIG. 13 .
  • this design may not necessarily include a thickened portion of the cushion.
  • FIGS. 17-19 show a portion of another mask assembly 305 according to an embodiment of the present invention.
  • FIG. 17 shows a common Swift frame and cushion assembly 310 in isolation, including prong elements 315 for engagement with the user's nares.
  • FIG. 18 shows a supplemental VistaTM style cushion 320 adapted for use with the SwiftTM cushion/frame assembly 310 .
  • the mask assembly is supported on the user's head using a headgear assembly as described above.
  • the supplemental cushion 320 includes at least one hole 325 provided on its lateral side for insertion over the frame/cushion assembly 310 .
  • Supplemental cushion 320 also includes a centrally located hole 330 that aligns with the gas washout vents 335 of the frame/cushion assembly 310 .
  • FIG. 19 shows the frame/cushion assembly 310 and the supplemental cushion 320 in assembled form.
  • each hole 325 of the supplemental cushion 320 is stretched over the connector of the frame, and the resiliency of the material of the supplemental cushion allows it to engage with the channels of the frame and/or to simply seal with an exposed surface of the frame cushion assembly. In this position, the prongs 315 seal with the nares, while the supplemental cushion includes a face contacting portion that seals with the user' face.
  • one aspect of the invention is directed to the combination of a SwiftTM frame with a VistaTM cushion component.
  • the combination of these dissimilar mask systems required a number of adjustments, as can be derived from the above description and the drawings.
  • the force due to air pressure against the cushion may cause moments about the elbow. If these moments are not counteracted, the result may be the cushion rotating and losing seal.
  • the elbow should be stiff enough to prevent rotation under pressure.
  • a locking or ratcheting mechanism may be implemented to lock the rotation on the elbow when the desired angle is found. Locking may be achieved using an interference fit, and/or locking components, such as detents or a pin/groove arrangement. Generally, an approximation of the desired effect can be achieved by simply fixing the elbow in place relative to the frame. Otherwise, simply inhibiting rotation, e.g., by strapping the elbow to the adjacent headgear, can be effective as well.
  • the mask assembly 340 in FIG. 20 includes a cushion component 345 that is similar in general shape to the Vista cushion in terms of its intended sealing footprint relative to the user's face, but it includes a plurality of ribs 350 that extend from the clip element 355 to the top of the cushion, to stop or help prevent the cushion from flexing about the elbow (or flopping off the face).
  • the stiffening member (ribs in this example) will move this vector away from the elbow, and prevent the cushion from flopping off the face.
  • the stiffening member should extend as close to the skin as possible without compromising comfort.
  • the common frame is similar to that described above and may be, e.g., a Swift frame.
  • the mask assembly 360 in FIG. 21 includes a rib 365 along the perimeter of the cushion to help support and/or push the cushion onto the user's face.
  • the rib 365 may be comolded with the cushion.
  • the cushion forms a breathing cavity which receives the nose of the user, and the upper apex of the cushion extends across the bridge of the user, between the eyes.
  • the cushion can be ResMed's MirageTM cushion, adapted for assembly to common frame. Common frame is similar to that described above and may be, e.g., a SwiftTM frame. However, the clip element 370 of the cushion assembly is slightly rotated such that it is positioned to face downwardly.
  • the stiffening member may take the form of one or more thickened elements, e.g., by thickening the cushion which will result in it being stiffer in sections. See, e.g., the relatively thickened portion of cushion component in FIG. 13 . Ribs could be made in the cushions, extending from the frame to the highest point of the cushion. A pseudo frame could be implemented where a large portion of the cushion is thick silicone, only the areas in contact, or requiring flex (as in a “bubble” cushion or single walled membrane) will be thin.
  • FIG. 22 shows a mask assembly 380 according to another embodiment of the invention having a headgear assembly 385 and a common Swift frame 390 as described above, as well as cushion component 395 in the form of a nose tip cushion.
  • the cushion includes a membrane that extends up the side of the nose. The membrane could extend just over the tip of the nose.
  • the cushion could incorporate a bubble style seal over the tip of the nose.
  • the mask assembly includes one or more vent openings 400 provided in the frame/cushion component.
  • FIG. 23 shows a mask assembly 405 according to yet another embodiment of the present invention having a headgear assembly 410 and common Swift frame 415 as described above, as well as a cushion component 420 in the form of a full-face cushion, such as that available from ResMed under the name UltraMirageTM full-face cushion and described in U.S. Pat. No. 6,513,526, incorporated herein by reference in its entirety.
  • the cushion component 420 would be adapted for use with a SwiftTM type frame, as described above.
  • the cushion 420 may include a rib 425 that extends from the bottom to the top of the cushion. Furthermore, the frame 415 is positioned on the upper 1 ⁇ 2 to upper 1 ⁇ 3 of the cushion to support the cushion. The frame to cushion interface is positioned below the nose, although it may be above the nose. The cushion may include one or more gas washout vents 430 .
  • FIG. 24 shows a mask assembly 440 according to yet another embodiment of the present invention including a common SwiftTM frame 445 , a headgear assembly 450 , and a Vista-like cushion 455 supported by the frame.
  • the upper part 460 of the cushion may include a thin membrane (the lower cushion may be like a double wall VistaTM cushion). This has the advantage of reduced weight and subjectively feels light to wear. It may also allow deflection around contours of nose as it will be more flexible than a conventional thick cushion. This will help with fit and the range of patients suited to each size.
  • the upper part 460 of the cushion shown in FIG. 24 includes a bellows type arrangement around the cushion which may be inflated to help pressure and fit, like the ResMed ActivaTM mask, described in U.S. Pat. No. 4,772,760 and U.S. application Ser. No. 10/655,622, filed Sep. 5, 2003, each incorporated herein by reference in its entirety.
  • the cushion may include a stiff drinking straw-like structure, e.g., plastic corrugations that maintain shape in a variety of positions. The straw-like structure would click or fold into different positions to allow more or less nose height.
  • the lower part of the cushion 465 may include a gusset portion, a double gusset, or a solid silicon structure.
  • the position of the centroid of the cushion to frame interface may be changed, depending on application.
  • the frame location in FIGS. 2-13 is closer to the centroid as compared to the location of the centroid in FIGS. 15-16 .
  • the positions of the cushions relative to the face remain generally constant.
  • the mask assembly 500 in FIGS. 25-26 includes a common Swift frame 505 supported by SwiftTM-like headgear 510 , in addition to a VistaTM like cushion 515 supported by the frame 505 .
  • the axis of location of the frame 505 is across the middle of the nose, although it could be higher or lower.
  • the axis of location of the frame onto the cushion may vary according to user preference (which will be influenced by head shape/headgear angles).
  • FIGS. 25-26 it can be seen that the headgear-frame angle remains constant and the frame is located at higher or lower cushion positions, position 2 in FIG. 25 and position 3 in FIG. 26 .
  • Adjustment can be effected using mechanical expedients such as a sliding arrangement. Holes in the sides of the cushion may allow stretching in to accommodate positioning of the cushion in the various positions.
  • the headgear and frame angle may rotate around the same cushion position.
  • the headgear location point could be on a lobe or cam to move it relative to the cushion.
  • a further embodiment is the use of weight to change the center of gravity of the cushion or frame/headgear system.
  • FIGS. 27-31 illustrate a mask assembly 600 according to a further embodiment of the present invention.
  • Mask assembly includes a frame 605 (e.g. polycarbonate shell), a headgear assembly 610 , a cushion component 615 , and a chin strap assembly 620 supported by the frame.
  • Chin strap assembly 620 includes an extender 625 and chin strap 630 .
  • Extender 625 is shown in FIG. 30 and is preferably made of a rigid material, e.g., polycarbonate or a rigid plastic backed with headgear foam material.
  • Extender 625 includes an aperture 635 by which a bevel clip 640 ( FIG. 29 ) may be used to selectively attach the extender 625 to the frame, e.g., using interference snap fit.
  • Extender 625 includes a hole 640 for receiving a strap 645 of the chin strap.
  • Each strap includes hook and loop fastening elements, e.g., Velcro®.
  • Chin strap 630 includes a cushion sealing area 650 , and is made from a foamed headgear material.
  • the chin strap is preferably elastic.
  • Chin strap is bonded to the frame at a bond point or region 655 , e.g., as shown in FIGS. 27 , 28 and 31 . Bonding may be achieved, e.g., via adhesive, plasma or lamination methods.
  • FIGS. 30 and 31 Another variant is to simply use only the extender and chin strap shown in FIGS. 30 and 31 , respectively, along with another mask of choice, e.g., ResMed's Nightingale mask, more fully described in PCT Patent application no. PCT/AU04/01832, filed Dec. 24, 2004, incorporated by reference in its entirety.
  • a further embodiment is the use of the Nightingale headgear with the chin strap assembly and the frame cushion.
  • a further embodiment is the combination the full-face seal as shown in FIG. 27 , along with nasal prongs as shown in FIG. 19 .

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  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Emergency Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Otolaryngology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
US12/083,779 2005-10-25 2006-10-24 Interchangeable Mask Assembly Abandoned US20090126739A1 (en)

Priority Applications (1)

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US12/083,779 US20090126739A1 (en) 2005-10-25 2006-10-24 Interchangeable Mask Assembly

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US72974605P 2005-10-25 2005-10-25
PCT/AU2006/001570 WO2007048174A1 (fr) 2005-10-25 2006-10-24 Ensemble masque interchangeable
US12/083,779 US20090126739A1 (en) 2005-10-25 2006-10-24 Interchangeable Mask Assembly

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PCT/AU2006/001570 A-371-Of-International WO2007048174A1 (fr) 2005-10-25 2006-10-24 Ensemble masque interchangeable

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US12/320,663 Division US9381316B2 (en) 2005-10-25 2009-01-30 Interchangeable mask assembly
US14/289,158 Continuation US9962510B2 (en) 2005-10-25 2014-05-28 Respiratory mask assembly

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US20090126739A1 true US20090126739A1 (en) 2009-05-21

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US12/083,779 Abandoned US20090126739A1 (en) 2005-10-25 2006-10-24 Interchangeable Mask Assembly
US12/320,663 Active 2030-02-06 US9381316B2 (en) 2005-10-25 2009-01-30 Interchangeable mask assembly
US13/870,678 Abandoned US20130233316A1 (en) 2005-10-25 2013-04-25 Interchangeable mask assembly
US14/289,158 Active 2028-09-18 US9962510B2 (en) 2005-10-25 2014-05-28 Respiratory mask assembly
US15/841,488 Expired - Fee Related US10183138B2 (en) 2005-10-25 2017-12-14 Interchangeable mask assembly
US16/216,115 Active 2027-06-27 US11052211B2 (en) 2005-10-25 2018-12-11 Interchangeable mask assembly
US17/355,540 Active US11596757B2 (en) 2005-10-25 2021-06-23 Interchangeable mask assembly
US18/087,071 Active US11890418B2 (en) 2005-10-25 2022-12-22 Interchangeable mask assembly

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US13/870,678 Abandoned US20130233316A1 (en) 2005-10-25 2013-04-25 Interchangeable mask assembly
US14/289,158 Active 2028-09-18 US9962510B2 (en) 2005-10-25 2014-05-28 Respiratory mask assembly
US15/841,488 Expired - Fee Related US10183138B2 (en) 2005-10-25 2017-12-14 Interchangeable mask assembly
US16/216,115 Active 2027-06-27 US11052211B2 (en) 2005-10-25 2018-12-11 Interchangeable mask assembly
US17/355,540 Active US11596757B2 (en) 2005-10-25 2021-06-23 Interchangeable mask assembly
US18/087,071 Active US11890418B2 (en) 2005-10-25 2022-12-22 Interchangeable mask assembly

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US (8) US20090126739A1 (fr)
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US20210316101A1 (en) 2021-10-14
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US9962510B2 (en) 2018-05-08
US10183138B2 (en) 2019-01-22
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US20190105455A1 (en) 2019-04-11
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US20140261434A1 (en) 2014-09-18
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