EP2021079A1 - Interface de ventilation - Google Patents

Interface de ventilation

Info

Publication number
EP2021079A1
EP2021079A1 EP06770870A EP06770870A EP2021079A1 EP 2021079 A1 EP2021079 A1 EP 2021079A1 EP 06770870 A EP06770870 A EP 06770870A EP 06770870 A EP06770870 A EP 06770870A EP 2021079 A1 EP2021079 A1 EP 2021079A1
Authority
EP
European Patent Office
Prior art keywords
interface
membrane
ventilation
facial interface
user
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06770870A
Other languages
German (de)
English (en)
Inventor
Sanjay Chandran
Shara Hernandez
Louis Javier Collazo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Respcare Inc
Original Assignee
Respcare Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Respcare Inc filed Critical Respcare Inc
Publication of EP2021079A1 publication Critical patent/EP2021079A1/fr
Withdrawn legal-status Critical Current

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. 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
    • 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
    • A61M16/0616—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
    • 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
    • A61M16/0683—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
    • A61M16/08—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. mouth-to-mouth respiration; 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
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/06—Head
    • A61M2210/0618—Nose
    • 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
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/06—Head
    • A61M2210/0625—Mouth

Definitions

  • This invention relates generally to the field of respiration or breathing assist masks.
  • the invention relates to respiration or breathing assist masks utilizing both the nose and mouth.
  • Obstructive sleep apnea syndrome (commonly referred to as obstructive sleep apnea, sleep apnea syndrome, and/or sleep apnea) is a medical condition that includes repeated, prolonged episodes of cessation of breathing during sleep.
  • the muscles of the upper part of the throat passage of an individual keep the passage open, thereby permitting an adequate amount of oxygen to flow into the lungs.
  • the throat passage tends to narrow due to the relaxation of the muscles. In those individuals having a relatively normal-sized throat passage, the narrowed throat passage remains open enough to permit the adequate amount of oxygen to flow into the lungs.
  • An individual having the above-discussed conditions can stop breathing for one or more prolonged periods of time (e.g. ten seconds or more).
  • the prolonged periods of time during which breathing is stopped, or apneas, are generally followed by sudden reflexive attempts to breathe.
  • the reflexive attempts to breathe are generally accompanied by a change from a relatively deeper stage of sleep to a relatively lighter stage of sleep.
  • the individual suffering from obstructive sleep apnea syndrome generally experiences fragmented sleep that is not restful.
  • the fragmented sleep results in one or more of excessive and/or inappropriate daytime drowsiness, headache, weight gain or loss, limited attention span, memory loss, poor judgment, personality changes, lethargy, inability to maintain concentration, and/or depression.
  • CPAP continuous positive airway pressure
  • BiPAP bi-level positive airway pressure
  • IPPV intermittent mechanical positive pressure ventilation
  • One conventional ventilation interface for the application of positive pressure includes a face mask that covers both the nose and the mouth. See, for example, U.S. Patent Nos. 4,263,908 to Mizerak and 6,123,071 to Berthon-Jones et al.
  • Other face masks include configurations that cover only the nose or only the mouth.
  • Standard masks have air supplied under pressure and use headgear or harnesses configured at least with what is referred to as a lip strap, thereby preventing air from escaping from the user's mouth.
  • a lip strap is positioned level the patient's lips and wasp circumferentially around the patient's head from one side of the mask to the other.
  • a common complaint of a patient regarding ventilation masks is that they cause claustrophobia.
  • Such masks have large headgear that wrap around the entirety of the user's head and cover a significant area of the face including the periphery of both the nose and the mouth. Additionally such masks have a large amount of dead space within the mask where gas can be re-breathed by a patient, and a large area against the face of a user that must be sealed against the mask.
  • a ventilation mask may have an outer face that can receive a gas supply tube. Additionally, the ventilation interface may have a cushioned facial interface that may connect to the outer face and create a seal therebetween. Further, at least one nasal insert may be removably fitted to the cushioned facial interface. A seal may be created between the at least one nasal insert and the cushioned facial interface. A seal may also be created between the at least one nasal insert and the nares of a user who is wearing the ventilation interface. Further, each of the components of the ventilation mask may be removed and replaced with other components of different sizes or shapes.
  • a ventilation interface mask having a gas supply tube, a front face, a cushioned interface connector and a least one nasal insert.
  • the gas supply tube may be removably connected to the front face and to create a seal therebetween.
  • the cushioned interface connector may be removably connected to the front face to create a seal therebetween.
  • the at least one nasal insert may be removably connected to the cushioned interface connector to create a seal therebetween.
  • Fig. 1 shows an exploded view of an exemplary embodiment of the invention.
  • FIG. 2 shows a side perspective view of an exemplary embodiment of the invention.
  • Fig. 3 shows a front view of an exemplary embodiment of the invention.
  • Fig. 4 shows a back view of an exemplary embodiment of the invention.
  • Fig. 5 shows a top view of an exemplary embodiment of the invention.
  • Fig. 6 shows a bottom view of an exemplary embodiment of the invention.
  • Fig. 7 shows a right side view of an exemplary embodiment of the invention.
  • Fig. 8 shows a left side view of an exemplary embodiment of the invention.
  • Fig. 9 shows a top-down view of an exemplary embodiment of the invention.
  • Fig. 10 shows a rotated top-down view of an exemplary embodiment of the invention.
  • FIG. 11 shows a bottom-up view of an exemplary embodiment of the invention.
  • Fig. 12 shows a side view of an exemplary embodiment of the invention.
  • Fig. 13 shows a front view of an exemplary embodiment of the invention.
  • Fig. 14 shows cut out views of membranes in another exemplary embodiment of the invention.
  • Fig. 15 shows cut out view of membranes in another exemplary embodiment of the invention.
  • Fig. 16 shows a top-down view of an exemplary embodiment of the invention.
  • FIG. 17 shows a rotated top-down view of an exemplary embodiment of the invention.
  • Fig. 18 shows a bottom-up view of an exemplary embodiment of the invention.
  • Fig. 19 shows a side view of an exemplary embodiment of the invention.
  • Fig. 20 shows a front view of an exemplary embodiment of the invention.
  • Fig. 21 shows cut out views of membranes in another exemplary embodiment of the invention.
  • Fig. 22 shows cut out view of membranes in another exemplary embodiment of the invention.
  • a ventilation interface mask is disclosed.
  • the interface may be used for a variety of purposes, for example providing continuous positive airway pressure to a user.
  • the ventilation interface may alleviate concerns some users have by being small than other types of ventilation masks and by eliminating portions of the mask that fit over the nose of a user. Additionally, by eliminating the portions of a mask that fit over the nose of a user, less sealing is required against the face of a user. Also, the small size of the ventilation interface reduces the amount of space on the interior of the mask, thus resulting in less gas to exhaust and a decreased amount of gas that is breathed more than once.
  • Fig. 1 shows an exploded view of an exemplary embodiment of a respiration assist mask.
  • Respiration assist mask 2 may have several separable components, such as ventilation interface 4, cushioned facial interface 6, nasal inserts 8 and 9, and gas supply tube 10.
  • supply tube 10 may be connected to ventilation interface 4 in order for input gas may be supplied to the device.
  • facial interface 6 may be joined with ventilation interface 4.
  • Ventilation interface 4 may also accept nasal inserts 8 through receiving holes 12 and 14.
  • the respiration assist mask 2 may then be positioned over the mouth of a user such that facial interface 6 forms an airtight seal over the mouth of the user. Additionally, in a further embodiment, facial interface 6 may form a seal against the upper and lower lips of the user.
  • respiration assist mask 2 When respiration assist mask 2 is positioned over the mouth of a user, the user may insert nasal inserts 8 and 9 into the nares of a user. When nasal inserts 8 and 9 are inserted into the nares of a user, an airtight seal may be formed.
  • nasal inserts 8 and 9 may be formed in a variety of shapes, for example the volcano style shown in Fig. 1. Additionally, any size or shape nasal insert that fits into the nares of a user and optionally provides an airtight seal may be used with respiration assist mask 2.
  • Nasal inserts may be formed from any suitable material, for example silicone.
  • nasal inserts 8 and 9 may be connected by connector 16.
  • Connector 16 may be formed out of any material and is, optionally, formed out of the same material as the nasal inserts. Connector 16 can also be separable from nasal inserts 8 and 9, or, in a different embodiment, nasal inserts 8 and 9 can be formed without a connector.
  • connector 16 may function to prevent the rotation of nasal inserts 8 and 9 when they are engaged on facial interface 6 in receiving holes 12 and 14, respectively. Additionally, connector 16 may act to retain nasal inserts 8 and 9 in a desired position. Alternatively, connector 16 may be removed to allow for rotation of nasal inserts 8 and 9 in receiving holes 12 and 14, respectively. Further, if connector 16 is removed, two different size nasal inserts may used and attached to respiration assist mask 2 if it is needed or desired by a user.
  • nasal inserts 8 and 9 may be formed with elliptical distal ends 18 and 20, respectively. Elliptical ends 18 and 20 may be formed so as to provide comfortable and airtight seals within the nares of a user.
  • Connector 16 may be positioned on nasal inserts 8 and 9 so as to hold nasal inserts 8 and 9 in a position which provides a comfortable and airtight seal in the nares of the user.
  • facial interface 6 may provide an airtight seal against the face of a user. Additionally, facial interface 6 may act as a cushion against the face of a user. Similar to the removable cushion disclosed in U.S. Patent No. 6,595,214 (the '214 patent), which was incorporated by reference into Provisional U.S. Patent Application No. 60/634,802 to which priority is claimed, facial interface 6 may act as a removable cushion that attaches to a ventilation interface. Facial interface 6 may also act to form a seal against an upper and/or lower lip of a user.
  • facial interface 6 may include chin flap 22.
  • chin flap 22 When respiration assist mask 2 is placed on the face of a user, chin flap 22 may be positioned under the chin of the user. In one embodiment, chin flap 22 may provide additional sealing against the face of a user. Additionally, in another embodiment, chin flap 22 may act to provide additional comfort for a user. In a further embodiment, chin flap 22 can act to limit the movement of the lower jaw of a user.
  • facial interface 6 may have multiple membranes 24a, 24b and 24c (collectively membranes 24).
  • Membranes 24 may serve to provide additional seals against the face of a user.
  • membranes 24, and specifically membrane 24a may seal against an upper and/or lower lip of a user who is wearing respiration assist mask 2.
  • membrane 24a may be formed to be thinner than membrane 24b.
  • membrane 24a can adhere to facial contours and fill small facial gaps as it can be a thin, flexible material.
  • membrane 24b may be thicker than membrane 24a to provide auxiliary sealing against the face of a user and provide structural support for the device.
  • membrane 24a may be made of any suitable material, for example silicone, and may be approximately 0.020" thick.
  • Membrane 24b may also be made of any suitable material, for example silicone, and have a thickness of approximately 0.050".
  • Still other parts of facial interface 6, for example 24c may have a thickness of approximately 0.100". This thickness may extend around the periphery of that portion of the device.
  • membranes 24 may work in conjunction with chin flap 22 to provide additional sealing capabilities.
  • chin flap 22 may act to limit the movement of the lower jaw of a user.
  • chin flap 22 may have some elasticity which allows a user wearing respiration assist mask 2 to move their jaw and, for example, open their mouth.
  • membrane 24a which also may be elastic, may stretch upper portion of the lower jaw of the user, thus maintaining the seal between the interface and a wearer's face.
  • Membrane 24b which may also be elastic, may then stretch against the bottom portion of the mouth of the user, thus maintaining an airtight seal between facial interface 6 and the face of a user.
  • chin flap 22 allows facial interface 6 to stretch.
  • the lower jaw of the user would move against chin flap 22, but remain in contact with chin flap 22 as it stretches.
  • membranes 24 remain sealed against the moving face of the user.
  • facial interface 6 may have contoured surfaces around receiving holes 12 and 14. These contoured surfaces may work in conjunction with flange 26 of nasal insert 8 and flange 28 of nasal insert 9.
  • Contoured surface 30 and contoured surface 32 may act to hold nasal insert 8 and nasal insert 9, respectively, in a position that allows for an airtight seal to be formed between the nasal inserts and the nares of a user wearing respiration assist mask 2.
  • contoured surfaces 30 and 32 may act to provide an airtight seal between nasal inserts 8 and 9, respectively and facial interface 6.
  • contoured surfaces 30 and 32 can act to angle nasal inserts 8 and 9, respectively, towards each other and thus orientate them to be better received into the nares of a user.
  • auxiliary ports 34 and 36 may be positioned on ventilation interface 4.
  • Auxiliary ports 34 and 36 may be positioned on an upper portion of interface 4 and may project outwardly. Additionally, when they are not being otherwise utilized, auxiliary ports 34 and 36 may be capped with coverings 38 and 40, respectively.
  • Auxiliary ports may be used, for example, to connect to outside devices for the purposes of measuring oxygen or carbon dioxide levels, pressure, or to connect to any other outside device to provide measurements, readings or additional inputs.
  • auxiliary ports 34 and 36 may be utilized as exhaust ports to release gas from the interior portion of ventilation interface 4.
  • Removable coverings 38 and 40 may act to prevent the release of gas from respiration assist mask 2 and maintain the airtight seal within the device when.
  • Ventilation interface 4 may also have a design such that it can accept and seal with cushioned facial interfaces of various sizes.
  • cushioned facial interface 6 may be made to have different size or shape cushions or have a different sealing area. Different size facial interfaces may maintain a similar size or shape membrane to connect with ventilation interface 4, however. In other embodiments, different size facial interfaces may be made out of a material that stretches, so as to allow for an airtight seal to be formed between varying sizes of facial interface and ventilation interface 4.
  • Fig. 1 also shows input gas tube 10, which may be formed in an elbow shape or any other shape which may attach to ventilation interface 4.
  • Input gas tube may be used to deliver any type of gas or aerosol and may be used in any type of respiration application, such as CPAP or BiPAP applications.
  • Input gas tube 10 may have connection portion 42 which can be used to connect input gas tube 10 to ventilation interface 4 through the use of receiving hole 48.
  • Connection portion 42 may be threading, allowing input gas tube 10 to be screwed into receiving hole 48 or any other connection and sealing mechanism, such as a clip or a clasp.
  • Input gas tube 10 may also have valve 44 disposed on its surface.
  • Valve 44 may be coupled with a flap, held in place by connector 46, which is closed in an airtight seal when ventilation gas is being passed through input gas tube 10. However, if there is no gas being inputted through tube 10, the flap will open, allowing outside air to enter respiration assist mask 2.
  • the device may be worn on the face of a user with any of a variety of types of headgear.
  • the headgear may attach to respiration assist mask 2 through the use of headgear attachment posts 50.
  • Attachment posts 50 may be positioned at various portions of ventilation interface 4, for example at the top and bottom of either side face 4.
  • the headgear may have female connectors that allow for the headgear to be securely fastened to male attachment posts 50.
  • the headgear may have looped ends that securely fit around attachment posts 50.
  • any other known type of attachments or posts may be used to securely attach headgear to respiration assist mask 2 in such as manner as to provide for the comfort of a user and allow for an airtight seal to be formed between the face of a user and respiration assist mask 2.
  • Fig. 2 shows another exemplary embodiment where the components of the device are joined together.
  • gas input tube 10 may be securely connected to ventilation interface 4 through any of the methods mentioned previously. Additionally, tube 10 may be secured to face 4 to provide an airtight seal between the tube and the face, but it may be rotatably engaged to the face. Thus input gas tube 10 may be rotated so that a feed tube that may, optionally, be connected to input gas tube 10 can be mounted in any location or position and continue to supply input gas to respiration assist mask 2.
  • Fig. 2 also shows how ventilation interface 4 can be connected to facial interface 6.
  • the mating of these two devices can create an airtight seal between face 4 and connector 6.
  • any known method of connecting the two components may be utilized, such as tongue in groove, clasps, clips or the like.
  • Connector 6 may also serve to enhance the structural rigidity of respiration assist mask 2.
  • the top portion and side portions of connector 6 may be thicker than other portions of connector 6. This can allow for stabilization of nasal inserts 8 and 9 when they are joined with connector 6. Further, this may prevent fore and aft movement as well as lateral movement of nasal inserts 8 and 9 when they are joined with connector 6, and may also act to enhance the seal between the nasal inserts 8 and 9 and connector 6.
  • nasal inserts 8 and 9 are shown connected to facial interface 6 through the use of receiving holes 12 and 14. This connection may also form an airtight seal between nasal inserts 8 and 9 and facial interface 6.
  • the assembled respiration assist mask 2 shown in Fig. 2 may be joined to provide airtight seals between each of the components. Additionally, when the device is positioned on the face of a user, an airtight seal may exist between the interior portion of respiration assist mask 2 and the face of the user.
  • exhaust ports 52 may be disposed on the face of respiration assist mask 2.
  • a series of exhaust ports 52 may be formed on the surface of ventilation interface 4. These ports 52 may be utilized to release or output carbon dioxide that is exhaled by a user wearing the mask.
  • the exhaust ports may protrude from ventilation interface 4.
  • a different number of exhaust ports that may be larger or smaller may be utilized on ventilation interface 4.
  • one or more exhaust ports have adjustable apertures or adjustable flow rates may be disposed on ventilation interface 4.
  • exhaust ports 52 may be capable of being capped or sealed from the interior or exterior of ventilation interface 4 so as to vary the flow rate of exhaust gases.
  • exhaust ports 52 may be disposed on any location of ventilation interface 4.
  • facial interface 6 may have an upper portion that is positioned against the upper lip of a user.
  • upper portion 6a of facial interface 6 may rest snugly against the upper lip of a user when respiration assist mask 2 is being worn.
  • Upper portion 6a may act to create an airtight seal between the upper lip of a user wearing the device and connector 6.
  • upper portion 6a may act as an anchor portion for respiration assist mask 2 when it is being worn by a user.
  • upper portion 6a of connector 6 will anchor respiration assist mask 2 on the face of the user to prevent it from being dislodged, which could potentially cause a break in the airtight seal between respiration assist mask 2 and the face of a user.
  • upper portion 6a acts as an anchor, it may prevent forces on chin flap 22 caused by jaw or mouth movement of a user wearing the device from affecting the positioning and sealing of nasal inserts 8 and 9, which may be inserted into the nares of a user wearing the device.
  • stress exerted elsewhere on respiration assist mask 2 will not be translated into movement of nasal inserts 8 and 9 within the nares of a user and can prevent the dislodging of the nasal inserts from the nares.
  • upper portion 6a may also prevent movement of nasal inserts 8 and 9 when respiration assist mask 2 is worn or adjusted by a user.
  • respiration assist mask 2 is worn on the face of a user through the use of headgear attached to posts 50, the user will likely need or desire to adjust the headgear so as to have comfort while ensuring the device is positioned properly.
  • the tightening of headgear on the head of a user would likely cause articulation and movement apart of the nasal inserts as the device onto which the nasal inserts was mounted stretched as the headgear was tightened.
  • upper portion 6a of connector 6 acts as an anchor for respiration assist mask 2 because it is positioned against the upper lip of a wearer to create a seal. Therefore any forces acting upon respiration assist mask 2 by the use or tightening of headgear will be absorbed by upper portion 6a of connector 6, rather than by nasal inserts 8 and 9. Thus, the comfort of a user wearing the device can be enhanced and there is a reduced possibility of nasal inserts 8 and 9 being moved within the nares of a user or dislodged, causing a break in the seal.
  • Fig. 5 shows a top down view of another embodiment of the invention.
  • nasal inserts 8 and 9 are shown as being angled towards each other.
  • nasal inserts 8 and 9 may be angled or orientated differently depending on the fitting required or desired by a user.
  • hole 54 on nasal insert 8 and hole 56 on nasal insert 9 may be elliptical. Other sizes and shapes of the holes may be utilized depending on the application and wearer of ventilation interface 2.
  • FIG. 6 shows a bottom up view of a different embodiment of the invention.
  • FIG. 6 provides a bottom perspective facial interface 6 and chin flap 22. Additionally, one example of the placement of attachment posts 50 is shown. Fig. 6 also demonstrates the seal and one possible way of joining facial interface 6 and ventilation interface 4 where facial interface 6 fits into ventilation interface 4 in a tongue- in-groove fashion.
  • Figs. 7 and 8 show exemplary side views of the invention. In this embodiment, chin flap 22 on facial interface 6 extends beyond other portions of facial interface 6. Additionally, interface connector may have shaped edges which can contour to the face of a user to better provide a seal against the face of the user. Figs. 7 and 8 also show auxiliary ports 34 and 36 as being disposed inside recessed or cut out portions of ventilation interface 4. In other embodiments of the invention, auxiliary ports 34 and 36 may be disposed in an area on ventilation interface 4 that is not cut out or recessed.
  • Figs. 9-22 show an exemplary embodiment of cushioned facial interface 6.
  • membrane 24a is shown as an outer membrane that is thinner than inner membrane 24b.
  • membrane 24a can be made of any suitable material, such as silicone. As discussed above, membrane 24a is thin so as to be able to follow the contours of a user's face and provide a seal between facial interface 6 and the face of the user.
  • the thin membrane may be able to stretch in order to maintain a seal when the user's face moves, for example, such as when the user opens their mouth.
  • Membrane 24b is shown as being thicker than membrane 24a and is also positioned inside membrane 24a.
  • Membrane 24b may also be made out of any suitable material, such as silicone, and, as discussed above, may be thicker to provide support on the inside of mask 2.
  • Membrane 24b may also serve to act as a "stop.” In other words, membrane 24b may limit the amount of movement a user may have while wearing the mask, for example, preventing the user from opening their mouth beyond a certain point.
  • Fig. 11 the differences in the areas separating various membranes can be seen.
  • the distance between membranes 24a, 24b and 24c is larger on axis A-A than it is on the E-E axis.
  • the distance between membranes 24a-c on axis A-A can allow for increased user comfort and utility, as a seal can be made around the entire mouth of the user. Additionally, by having a seal around the entire mouth area, the structural rigidity of mask 2 can be increased.
  • a user may be able to tighten mask 2 on their face without causing flex in the central or peripheral portions of the mask which could lead to the seal between the user's face and the facial interface being broken.
  • This membrane structure can also allow downward pressure to be exerted on nasal inserts 8 and 9 without dislodging nasal inserts 8 and/or 9 and without significantly deforming facial interface 6 so as to cause a break in the seal between the face of the user and facial interface 6.

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  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

L'invention concerne un masque d'assistance respiratoire doté d'un tube d'alimentation en gaz d'entrée, d'une interface de ventilation, d'une interface faciale et d'inserts nasaux. Le tube d'alimentation en gaz peut se connecter à l'interface de ventilation et former un joint étanche. L'interface de ventilation peut être assemblée à l'interface faciale pour former un joint étanche entre l'interface de ventilation et l'interface faciale, ainsi qu'entre l'interface faciale et le visage d'un utilisateur. De plus, des inserts nasaux peuvent être insérés dans une partie de l'interface faciale et former un joint étanche entre les inserts et l'interface faciale.
EP06770870A 2006-05-23 2006-05-23 Interface de ventilation Withdrawn EP2021079A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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US20080142015A1 (en) * 2006-01-27 2008-06-19 David Groll Apparatus to provide continuous positive airway pressure
DE202007019687U1 (de) * 2006-07-14 2015-07-14 Fisher & Paykel Healthcare Ltd. Atemhilfsgerät
US9981104B1 (en) 2008-02-19 2018-05-29 Circadiance, Llc Full face cloth respiratory mask
US9308343B2 (en) 2008-02-19 2016-04-12 Circadiance, Llc Respiratory mask with disposable cloth body
WO2013144740A1 (fr) * 2012-03-26 2013-10-03 Koninklijke Philips N.V. Ensemble orifice d'échappement pouvant être sélectionné
FR3006196B1 (fr) * 2013-05-31 2015-07-03 Cva Silicone Masque buccal de ventilation

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US6513526B2 (en) * 1996-07-26 2003-02-04 Resmed Limited Full-face mask and mask cushion therefor
NZ562412A (en) * 2003-02-21 2009-02-28 Resmed Ltd Nasal assembly for pillow mask

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