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WO2000013751A1 - Procede et dispositif d'administration de gaz a un patient - Google Patents

Procede et dispositif d'administration de gaz a un patient Download PDF

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Publication number
WO2000013751A1
WO2000013751A1 PCT/US1999/020225 US9920225W WO0013751A1 WO 2000013751 A1 WO2000013751 A1 WO 2000013751A1 US 9920225 W US9920225 W US 9920225W WO 0013751 A1 WO0013751 A1 WO 0013751A1
Authority
WO
WIPO (PCT)
Prior art keywords
patient
mouthpiece
teeth
gas
housing
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.)
Ceased
Application number
PCT/US1999/020225
Other languages
English (en)
Inventor
Donald P. Elliott
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AU62430/99A priority Critical patent/AU6243099A/en
Publication of WO2000013751A1 publication Critical patent/WO2000013751A1/fr
Anticipated expiration legal-status Critical
Ceased 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. 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
    • A61M16/04—Tracheal tubes
    • A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the tubes
    • A61M16/049—Mouthpieces
    • A61M16/0493—Mouthpieces with means for protecting the tube from damage caused by the patient's teeth, e.g. bite block

Definitions

  • the invention relates generally to devices and methods for the administration of air or other gases to a patient, and more particularly relates to devices and methods for directing such gases to the patient ' s nostrils under positive pressure for the relief of sleep apnea or related conditions.
  • U.S. Patent No. 4,263,908 notes that nasal cannulae have come into wide use for supplying gas to a bedridden patient, as an alternative to masks. It also notes that nasal cannulae usually comprise a pair of hollow nasal extensions, adapted to be inserted into the patient's nostrils.
  • U.S. Patent No. 4,263,908 proceeds to disclose a cup-like, mouth-covering mask whose positioning is said to assist in retaining a pair of nasal extensions in a proper relationship to a patient's nostrils.
  • the patent suggests merely that its disclosed apparatus may be held to the patient by the usual mode of supply tubes extending over the ears or an elastic strap passed around the head. It does not describe the use of a mouthpiece fitted or otherwise secured directly to the patient's teeth.
  • U.S. Patent No. 5,273,032 discloses an oral medical appliance that combines an annular or tubular body, adapted for insertion into a patient's mouth, with means for delivering supplementary gas to the patient.
  • the disclosed body is of a size which may be inserted comfortably between a patient's teeth, it does not appear to be fitted and thereby removably secured to the teeth as a means for maintaining the appliance in position. Instead, the patent suggests the use of a band, extending around the back of the patient's head, as a means for securing the appliance in position.
  • U.S. Patent No. 5,513,634 also discloses an oral medical appliance that combines a rigid bite block with nasal cannula means for delivering supplementary gas to the patient.
  • the bite block is said to provide a secure base for the cannula.
  • the patent describes the bite block, and refers to earlier U.S. Patent No. 5,174,284 which also describes a bite block in somewhat greater detail.
  • the bite blocks so described may contact a patient's teeth.
  • U.S. Patent No. 5,174,284 describes how the patient ' s teeth, biting toward one another upon certain upper and lower surfaces of a bite block, may slide down those surfaces and thereby cause the block to move inwardly.
  • any straight-out ejection of the block may be resisted by certain teeth guards therein described.
  • the bite blocks so described do not appear to be fitted to the patient's teeth, in the sense of being adjusted to their individual contours, so as to removably secure the appliance to the teeth. It is therefore understandable that the bite blocks described in Patent Nos . 5,174,284 and 5,513,634 are each provided with anchors for attachment of an elastic headband for holding the block in place.
  • U.S. Patent Nos. 1,445,010 and 5,375,593 describe devices that are provided with a tether or other head gear for retaining the device in position, and that do not appear to rely upon being fitted specifically to the user's teeth. Indeed, U.S. Patent No. 5,375,593 discloses cannulae combined with an ordinary nipple for sucking by an infant, and one of the patent's drawing figures shows an infant apparently without teeth.
  • U.S. Patent No. 3,508,543 discloses a resuscitation device having tubes which may be placed in a victim's mouth and nose to permit a rescuer to breath through the device and into the victim's lungs. No head gear is described, but the device does not appear to be fitted specifically to the victim's teeth as a means for holding it in position.
  • U.S. Patent No. 4,782,832 discloses several embodiments of a nasal puff device adapted for delivering gas to the nostrils of a patient. With the various embodiments, the patent describes various means for selectively and individually altering the position of the gas delivery elements of such a nasal device.
  • the patent discloses a harness assembly, adapted to be worn on the patient's head, as a means for operatively holding such a nasal puff device in place.
  • U.S. Patent No. 4,782,832 expressly notes the need for a respiratory-assist device which can be comfortably worn by a patient during relatively long periods of rest and sleep, without attendant problems of discomfort or improper fit. It is believed that the present invention, which does not require a cumbersome mask or head gear but instead involves an apparatus that is simply fitted to and worn on the patient's teeth (or the edentulous ridge in the case of an edentulous person) , even with the mouth comfortably closed, provides a particularly comfortable solution for those who are provided with a slightly pressurized gas while sleeping or otherwise for an extended period of time.
  • the invention provides and uses a device for directing gas, typically air, to the nostrils of a patient.
  • the device in its various potential embodiments, generally comprises two main elements joined together, seamlessly or otherwise: a mouthpiece shaped or shapeable to conform to surfaces of a patient's teeth or edentulous ridge, and a housing for directing gas to the nostrils of the patient.
  • the mouthpiece may be worn upon and removably secured to teeth of the patient (or the edentulous ridge in the case of an edentulous person) , so as to hold the housing in a position to direct gas, preferably slightly pressurized gas, to the patient's nostrils.
  • the gas to be delivered by such a device is preferably supplied to the device through a supply tube attached to a source of the gas.
  • the gas will be air. However, it could be any gas such as oxygen.
  • the device of the present invention utilizes a mouthpiece removably secured to teeth (or the edentulous ridge) of the patient, it may dispense with other more cumbersome and potentially uncomfortable arrangements. For example, it may be used to direct gas to the patient ' s nostrils without requiring the patient to wear a cumbersome harness or head band.
  • the present invention provides a method and device that are useful to direct gas to the nostrils of a patient in an uncomplicated manner that remains relatively comfortable for the patient, even if the gas must be directed to the patient for an extended period of time, such as, for example, for an entire evening while the patient sleeps.
  • the invention should also be useful for other purposes and respiratory therapies, the invention should be particularly useful for the treatment of obstructive sleep apnea, which is often treated by providing a sleeping patient, through the nostrils, with air under positive pressure. It is believed that the device of the present invention will be relatively more comfortable for the patient, and will therefore tend less to interfere with or prevent a good night ' s sleep for the patient being treated. It is also believed to be less prone to displacement which permits air leakage than any of the devices found in the prior art. Brief Description of The Drawings.
  • Figure 1 is a side view of a device of the present invention, maintained in position in accordance with the method of the present invention, as worn on teeth of a patient whose head is partially represented in profile, by broken lines.
  • the mouthpiece of the device is shown within the patient's mouth, where it would be hidden from view; nevertheless, the mouthpiece is depicted with solid lines so that it may be viewed plainly in the figure.
  • the patient's teeth are shown by broken, hidden lines. The teeth would otherwise be hidden by the patient's lips and right cheek, and some upper teeth would also be partly hidden by the mouthpiece of the device, since in FIG.
  • FIG. 1 those teeth have been partially received within indentations in the mouthpiece's upper surface.
  • Figure 2 is a top plan view of the device of FIG. 1, as removed from the patient's mouth.
  • Figure 3 is a bottom plan view of the device of FIG. 1, likewise as removed from the patient's mouth.
  • Figure 4 is a cross-sectional view of the device of FIG. 1, taken along lines 4-4 of FIG. 2.
  • Figure 5 is a side view of a second device of the present invention showing an exploded view of the device's two piece mouthpiece construction.
  • Figure 6 is another side view of the device of Figure 5 showing, however, the device in different positions than shown in Figure 5 and also showing an unexploded assembled view of the two piece mouthpiece.
  • FIG. 1 shows, with broken lines, a partial profile of the head 10 of a patient who is wearing a device 20 for directing gas to a patient's nostrils.
  • the device 20 generally comprises a fitted mouthpiece 22 and a gas directing housing 24.
  • the mouthpiece 22 is worn on upper teeth 26 in the patient's mouth.
  • the mouthpiece 22 is fitted to the upper teeth 26 in the sense that it is shaped to conform sufficiently closely to surfaces of those upper teeth 26 so as to securely affix the mouthpiece 22 to those upper teeth 26 when properly worn upon them. While securely affixed to the teeth, the fitting must also permit the device's removal from the teeth and a phrase used herein and in the claims appended hereto to describe such secure affixing and removal is "removably secured".
  • the upper surface 27 of the illustrated mouthpiece 22 is provided with a plurality of indentations 30, with each separate indentation being custom fitted to conform to the contours of a separate upper tooth 26.
  • each custom fitted indentation snugly receives the tooth to which it is shaped to conform.
  • This custom fitting fosters a certain cooperation among the indentations which causes the indentations to securely affix the mouthpiece to the patient ' s teeth when they are snugly receiving the teeth to which they are shaped to conform.
  • mouthpiece 22 is joined to the housing 24 at joint 32.
  • the housing 24 is in position to direct and deliver gas to the nostrils 28 of the patient when the mouthpiece 22 is properly worn upon and thereby removably secured to the patient ' s upper teeth 26, as viewed in FIG. 1.
  • Housing 24 includes a hollow member 34 and a pair of gas delivery elements 36.
  • hollow member 34 has a hollow manifold portion 38 and a generally cylindrical, hollow gas inlet portion 40.
  • the lower end of the gas inlet portion 40 defines a circular opening that serves as the gas inlet 42 for receiving the gas to be directed and delivered to the patient's nostrils 28.
  • Gas is supplied to the device 20 by a conventional gas supply tube 44 that is joined at an end (not shown) to a source of the gas, with the gas typically supplied under pressure. As shown in FIG. 1, the other end of the gas supply tube 44 is sealingly attached to the lower exterior of the hollow member's gas inlet portion 40.
  • Each of the two gas delivery elements 36 has an end portion 46 that is generally frustoconical . Since there are two gas delivery elements 36, and therefore two such generally frustoconical end portions 46, each end portion 46 can and should be inserted into a different one of the patient's two nostrils 28 when the device 20 is properly worn by the patient 10. Each end portion 46 is configured for such nostril insertion, so as to sealingly abut the nostril defining surfaces of the patient's nose when inserted and received into a nostril 28.
  • each end portion 46 defines a circular opening that serves as a gas outlet 48 for delivering gas from the device 20 into whichever nostril 28 has received that end portion 46. Since there are two end portions 46, there are two gas outlets 48, being one for each nostril 28, with each gas outlet 48 opening into a different nostril 28 when the two end portions 46 have been properly inserted into the patient's nostrils 28.
  • gas inlet portion 40 defines a cylindrical passageway 50, into which the gas flows after being received from tube 44 through gas inlet 42, when the device 20 is in use.
  • Manifold portion 38 defines manifold chamber 52, into which the gas flows from passageway 50.
  • Each of the two gas delivery elements 36 defines a separate gas delivery channel 54, so that there are two such channels 54. The gas flows into the two channels 54 from the manifold chamber 52, and it flows out of the two channels 54 through the two gas outlets 48 as it passes through device 20.
  • the two gas outlets 48 are each in fluid communication with gas inlet 42. Therefore, when the device 20 is in use and properly worn by the patient 10, the gas supplied to device 20 from tube 44 through gas inlet 42 is delivered to the patient's nostrils 28 through the gas outlets 48.
  • the roof 55 of the hollow member's manifold portion 38 is pierced by two adjacent circular bores 56 of equal diameter.
  • the bores 56 are hidden from view by the two gas delivery elements 36.
  • the lower ends of the two gas delivery elements 36 are inserted, from above, through the bores 56 (which are shown in cross-section) into the manifold chamber 52, with each gas delivery element 36 separately extending through a different one of the two bores 56.
  • the two gas delivery elements 36 are each of integral construction and preferably are made from a soft deformable material such as that described in U.S. patent 4,782,832. As shown in Figure 4, each gas delivery element also has a corrugated portion 58 which provides the elements 36 with enhanced flexibility so that they more easily conform to the surfaces of a patient's nostrils.
  • each gas delivery element 36 is sealed to the roof 55 of the hollow member's manifold portion 38.
  • the lower end of each gas delivery element 36 is provided with a pair of axially spaced, annular flanges 60, 61 which sealingly abut and sandwich between them the roof 55, around the circumference of whichever bore 56 the particular element 36 extends through.
  • the mouthpiece 22 is fitted to, or shaped to conform to surfaces of, the upper teeth 26 of the patient 10 who is to use the device 20.
  • This fitting can be accomplished in at least two different ways. In the first, the mouthpiece 22 is fitted to the upper teeth 26 of the patient 10 by vacuum molding it over a plaster model of the teeth (or the patient's edentulous ridge) using standard techniques. If the mouthpiece 22 is to be fitted in this manner, the mouthpiece 22 is preferably made of a suitable thermoplastic material known to those skilled in the art.
  • the mouthpiece 22 (which is made from a thermally malleable material also known to those skilled in the art) is fitted to the upper teeth 26 of the patient 10 in the manner that some sports mouth guards are fitted to the teeth of the athletes who wear them for protection: such as, for example, the All Sports Mouthguard, model no. 5522B sold by Safe T Gard Corp. of Golden, Colorado.
  • the mouthpiece 22 is typically heated, as by being submersed in boiling water, to reach a temperature rendering the mouthpiece 22 shapeable, in the sense that its upper surface is malleable and capable of being indented by being pressed against the patient's upper teeth 26.
  • the mouthpiece 22 is then immediately placed in the patient's mouth, with the mouthpiece's upper surface 27 abutting the upper teeth 26 to which it is to be fitted.
  • the mouthpiece 22 is then typically pressed against the upper teeth 26 with the result that the mouthpiece's upper surface 27 is shaped to conform to surfaces of and is indented by the patient's upper teeth 26, so as to form the indentations 30.
  • the mouthpiece 22 is then removed from the patient's mouth and cooled, as by being placed in cold tap water, in order to render the mouthpiece 22 less malleable and ready for wearing.
  • the mouthpiece 22 is joined to housing 24 in a generally rigid fashion by means of cementing or other known means which maintains the housing in a position relative to the mouthpiece so that the housing is (and remains) in position to direct gas to the nostrils when said mouthpiece is secured to the patient's teeth.
  • the mouthpiece 22 and the housing 24 are of integral construction, so that it may be said that they are integrally or seamlessly joined to one another at the location of joint 32.
  • the mouthpiece 22 and housing 24 could be joined by an embedded rigid bracket of some sort which would support and maintain the mouthpiece and housing in the desired orientation to each other.
  • the device 20 may be used by a patient 10 in the following manner.
  • the mouthpiece 22 is fitted to the patient's teeth 26 (or the edentulous ridge in the case of an edentulous person) in one of the manners described above, or in some other manner, so that the mouthpiece 22 is shaped to conform to surfaces of the teeth 26 (or the edentulous ridge) and may be worn on and removably secured to those teeth 26.
  • the patient 10 wears the mouthpiece 22 on the teeth 26 or edentulous ridge, thereby removably securing the mouthpiece 22 to the teeth or ridge, with each gas delivery element 36 partially and separately inserted into a different one of the patient's nostrils 28, so that the upper, generally frustoconical end portion 46 of the element 36 partially intrudes into the nostril 28 and abuts the tissues of the patient's nose that define the nostril 28.
  • the two gas outlets 48 each open into a different nostril 28, and are each in position to deliver to a nostril 28 whatever gas is supplied to the device 20 through gas inlet 42.
  • That gas which will often be compressed air or oxygen, but could be also be a medicinal vapor, an anesthetic gas, or some other gas, is supplied to the device 20 via supply tube 44, as previously described. While the device 20 is properly worn by the patient 10 in the manner described above, it will ordinarily stay in position to direct the gas to the patient's nostrils 28.
  • Figures 5 and 6 illustrate another device 120 of the present invention which is functionally equivalent to that previously described but modified slightly to make the device more adjustable and more securely attachable to the teeth or edentulous ridge than that of the first embodiment.
  • the mouthpiece (not numbered) of device 120 is provided in two pieces or sections instead of being one piece as in the previous embodiment.
  • the first section is referred to as the removable inner soft section 162.
  • This section is received in the second section which is referred to as the outer hard section 164.
  • the removable inner soft section 162 is molded to conform to the patient's teeth (or edentulous ridge) as well as the outer hard section 164 as shown in Figure 6. This enables the soft section to be removably secured to both, i.e. both the patient's teeth and the outer section.
  • the outer section's inner surface 166 is provided with indentations (not shown) to which the inner section 162 will conform when it is molded.
  • Soft section 162 is preferably made out of a soft thermally malleable material and vacuum molded as described above in connection with the mouthpiece of the first embodiment.
  • the hard section 164 may be made from PETG copolyester, brand name KODAR, (or a similar material) available Eastman Chemical Company of Kingsport, Tennessee also by a vacuum molding process.
  • To attach mouthpiece 120 to the teeth one first attaches the soft inner section 162 to the teeth by pressing it into place onto the teeth. One then attaches the hard section 162 to the inner section 162 also by pressing it into place. The pressing action of the hard section onto the soft section compresses the soft section against the teeth to securely attach the soft section to the teeth.
  • Compression of the soft section also enhances attachment of the entire mouthpiece to the teeth because the same compressive forces acting to securely attach the soft section to the teeth also act to secure the soft section to the hard section. In any event, the end result is a mouthpiece securely attached, indeed almost locked to the teeth.
  • the hard section should be removed first which enables the soft section to be more easily removed since removal of the hard section will relieve the compressive forces acting on the teeth via the soft section.
  • mouthpiece 160 is adjustably attached to the housing 124 of device 120 so that the position of the housing can be adjusted to insure that end portions 146 of the devices ' s gas delivery elements 136 fit comfortably against the nostril ' s of the wearer as well as sealingly abut therewith.
  • This desired adjustability is provided in the illustrated embodiment with a fork-like member 170 which is pivotally attached at an end 172 thereof to a cylindrical end section 174 of the mouthpiece's hard section 164.
  • end section 172 defines a cylindrically shaped sleeve 176 which receives cylindrical end section 174 to allow pivotal and lateral movement between the sections.
  • FIGS. 5 and 6 show housing 124 pivoted about cylindrical end section 174 in different positions. The ability to move the sections relative to each other laterally is not shown but will be appreciated by those skilled in the relevant art.
  • Figures 5 and 6 illustrate that the U-shaped end receives the gas inlet portion 140 of the housing and is secured thereto with a set screw 180.
  • the figures also illustrate that the position of the gas inlet portion 140 within the U-shaped end can be adjusted lengthwise, i.e. along the gas inlet portion's longitudinal axis, before the position is set with the set screw.
  • Figure 5 shows the U-shaped end attached to the mid-section of gas inlet portion while Figure 6 shows it attached more towards the distal end 182 of the gas inlet portion.
  • axial position of the gas inlet portion relative to the U-shaped member can also be adjusted by rotating the gas inlet portion one way or the other within the U-shaped end before the sec screw is tightened.
  • the hollow member 34 and the gas delivery elements 36 could be formed as an integral whole, instead of providing separate, flexible gas delivery elements for the sake of increased adjustability and comfort.
  • the housing's gas delivery elements 36 could be replaced with a cup-shaped mask that would be a part of the housing and would rest upon the patient's face, with the patient's nose inside the mask, in order to provide the gas to the patient's nostrils 28.
  • a cup-shaped mask could be attached to and maintained in position by a mouthpiece like mouthpiece 22 in much the same way that mouthpiece 22 is attached to and positions the gas delivery elements 36.
  • the disclosed mouthpiece 22 is only to be worn upon and removably secured to upper teeth 26, in the spirit of the invention it could be replaced with a mouthpiece that is to be worn upon and removably secured to all or different teeth of the patient.

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  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Biomedical Technology (AREA)
  • Emergency Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Otolaryngology (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 dispositif et un procédé d'administration de gaz par les narines (28) d'un patient. Le dispositif (20) comporte un logement (24) servant à diriger un gaz et un embout (22) qui sont réunis l'un à l'autre par un moyen qui maintient le logement dans une position permettant de diriger un gaz vers les narines d'un patient quand l'embout est porté par le patient. L'embout ou une partie de celui-ci est formé(e) ou peut être formé(e) de façon à s'adapter à des surfaces de dents (26) ou à une crête gingivale édentée d'un patient pour se fixer amovible à celle(s)-ci.
PCT/US1999/020225 1998-09-03 1999-09-02 Procede et dispositif d'administration de gaz a un patient Ceased WO2000013751A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU62430/99A AU6243099A (en) 1998-09-03 1999-09-02 Method and device for administering gas to a patient

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US9920598P 1998-09-03 1998-09-03
US60/099,205 1998-09-03

Publications (1)

Publication Number Publication Date
WO2000013751A1 true WO2000013751A1 (fr) 2000-03-16

Family

ID=22273564

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/020225 Ceased WO2000013751A1 (fr) 1998-09-03 1999-09-02 Procede et dispositif d'administration de gaz a un patient

Country Status (2)

Country Link
AU (1) AU6243099A (fr)
WO (1) WO2000013751A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005097247A1 (fr) 2004-04-09 2005-10-20 Resmed Limited Ensemble nasal
US7318437B2 (en) 2003-02-21 2008-01-15 Resmed Limited Nasal assembly
CN101496926A (zh) * 2003-02-21 2009-08-05 雷斯梅德有限公司 鼻组件
DE202004021758U1 (de) 2003-02-21 2010-09-30 ResMed Ltd., Bella Vista Nasale Anordnung
WO2011051896A3 (fr) * 2009-10-27 2011-06-23 Thomas Dominic Ford Hydratation et protection d'un patient
EP2705811A3 (fr) * 2011-04-05 2014-04-02 AirWay Technologies, LLC Appareil pour améliorer la respiration
CN103785090A (zh) * 2003-12-31 2014-05-14 雷斯梅德有限公司 小型口鼻病人接口
US8833371B2 (en) 1997-02-10 2014-09-16 Resmed Limited Mask and vent assembly therefor
US9254370B2 (en) 2006-11-14 2016-02-09 Resmed Limited Frame and vent assembly for mask assembly
US20170312470A1 (en) * 2016-04-28 2017-11-02 Jeffrey Norsted Cpap mask attachment system
USRE48095E1 (en) 2001-02-16 2020-07-14 ResMed Pty Ltd Humidifier with structure to prevent backflow of liquid through the humidifier inlet
US10806889B2 (en) 2008-06-05 2020-10-20 ResMed Pty Ltd Treatment of respiratory conditions
EP3736007A1 (fr) * 2007-10-22 2020-11-11 ResMed Pty Ltd Systèmes d'interface de patient
US11065410B1 (en) * 2021-02-01 2021-07-20 Leonard Feld Dental appliance using airway dialation for treating covid related breathing disorders
US11202877B2 (en) 2005-11-08 2021-12-21 ResMed Pty Ltd Nasal assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4706683A (en) * 1985-12-20 1987-11-17 Bowman Gray School Of Medicine, Wake Forest University Method and apparatus for bolus delivery of gases and aerosols and insufflations
US5537994A (en) * 1994-06-03 1996-07-23 Thornton; W. Keith Combination face mask and dental device for improved breathing during sleep

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4706683A (en) * 1985-12-20 1987-11-17 Bowman Gray School Of Medicine, Wake Forest University Method and apparatus for bolus delivery of gases and aerosols and insufflations
US5537994A (en) * 1994-06-03 1996-07-23 Thornton; W. Keith Combination face mask and dental device for improved breathing during sleep

Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8833371B2 (en) 1997-02-10 2014-09-16 Resmed Limited Mask and vent assembly therefor
USRE48095E1 (en) 2001-02-16 2020-07-14 ResMed Pty Ltd Humidifier with structure to prevent backflow of liquid through the humidifier inlet
USRE48118E1 (en) 2001-02-16 2020-07-28 ResMed Pty Ltd Humidifier with structure to prevent backflow of liquid through the humidifier inlet
US11497876B2 (en) 2003-02-21 2022-11-15 ResMed Pty Ltd Mask assembly
US7461656B2 (en) 2003-02-21 2008-12-09 Resmed Limited Nasal assembly
DE202004021758U1 (de) 2003-02-21 2010-09-30 ResMed Ltd., Bella Vista Nasale Anordnung
DE202004021757U1 (de) 2003-02-21 2010-09-30 ResMed Ltd., Bella Vista Nasale Anordnung
DE202004021759U1 (de) 2003-02-21 2010-10-07 ResMed Ltd., Bella Vista Nasale Anordnung
DE202004021756U1 (de) 2003-02-21 2010-10-07 ResMed Ltd., Bella Vista Nasale Anordnung
US7874293B2 (en) 2003-02-21 2011-01-25 Resmed Limited Nasal assembly
US11583652B2 (en) 2003-02-21 2023-02-21 ResMed Pty Ltd Mask assembly
DE202004021876U1 (de) 2003-02-21 2012-01-30 Resmed Limited Nasale Anordnung
CN101496926A (zh) * 2003-02-21 2009-08-05 雷斯梅德有限公司 鼻组件
US11433207B2 (en) 2003-02-21 2022-09-06 ResMed Pty Ltd Mask assembly
JP2009233375A (ja) * 2003-02-21 2009-10-15 Resmed Ltd 鼻用アセンブリ
US8985117B2 (en) 2003-02-21 2015-03-24 Resmed Limited Nasal assembly
US11420004B2 (en) 2003-02-21 2022-08-23 ResMed Pty Ltd Mask assembly
JP2017113609A (ja) * 2003-02-21 2017-06-29 レスメド・リミテッドＲｅｓＭｅｄ Ｌｉｍｉｔｅｄ 鼻用アセンブリ
US11103666B2 (en) 2003-02-21 2021-08-31 ResMed Pty Ltd Mask assembly
US11090455B2 (en) 2003-02-21 2021-08-17 ResMed Pty Ltd Nasal assembly
EP3581228A1 (fr) 2003-02-21 2019-12-18 ResMed Pty Ltd Ensemble nasal pour délivrer un gaz respiratoire à un patient
US10518058B2 (en) 2003-02-21 2019-12-31 ResMed Pty Ltd Mask assembly
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