|Publication number||US3182659 A|
|Publication date||11 May 1965|
|Filing date||15 Jan 1962|
|Priority date||15 Jan 1962|
|Publication number||US 3182659 A, US 3182659A, US-A-3182659, US3182659 A, US3182659A|
|Inventors||Blount Lester L|
|Original Assignee||Gordon D Mcmaude|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (9), Referenced by (113), Classifications (17)|
|External Links: USPTO, USPTO Assignment, Espacenet|
Filed Jan. 15, 1962 INVENTOR. [37278 Z. 5204/40 ATTOE/YA-X Patented May 11, 1965 3,182,659 OXYGEN AND INHALANT MASK Lester L. Blount, Midway City, Calif, assignor to Gordon D. McMaude, Midway City, Calif. Filed Jan. 15, 1962, Ser. No. 166,058 9 Claims. (Cl. 128-205) This invention relates to oxygen and inhalant masks, and is a continuation-in-part of my copending application for Face Mask, filed July 1, 1959, Serial No. 824,378, now abandoned. Included in the objects of this invention are:
First, to provide an oxygen and inhalant mask which is particularly adapted for emergency and medicinal use; that is, for use as an oxygen mask or for supplyingvarious inhalants or infusions to a patient.
Second, to provide an oxygen and inhalant mask which is particularly simple and economical of manufacture, and which is transparent to permit observation of the patients mouth and nose, the mask being formed of a molded plastic membrane. Third, to provide an oxygen and inhalant mask wherein the face-engaging portion is contoured to form a wall essentially parallel to the end of the nose and is provided with an aperture to receive an oxygen or inhalant supply unit so arranged as to have a discharge and directed toward the nostrils of the patient, and adjustable to and from the nostrils.
Fourth, to provide an oxygen and inhalant mask which incorporates simple yet effective check valve means which may be arranged for exhalation only, or may be arranged to permit exhalation through one valve means and inhalation through the other to prevent suffocation, should the supply of oxygen be exhausted or should it be desirable to dilute the oxygen.
Fifth, to provide an oxygen and inhalant mask which incorporates interchangeable and readily insertable medicament supply and premixing units, and which may incorporate means whereby additional medicament may be introduced without removing the mask or mixing unit.
With the above and other objects in view, as may appear hereinafter, reference is directed to the accompanying drawings in which:
FIGURE 1 is a vertical, sectional view of the mask shown arranged for use with an oxygen-supplying unit, and indicating by broken lines the position of the face of the patient;
FIGURE 2 is a fragmentary, sectional view similar to FIGURE 1 showing the lower portion of the mask equipped with an adapter to adjust the mask for use by a child;
FIGURE 3 is a front View of the mask with the oxygen unit and valves omitted and with a portion of the mask broken away to show the childs chin adapter;
FIGURE 4 is a partial side view, partial sectional view of the inhalant unit, usable interchangeably with the oxygen unit;
FIGURE 5 is an enlarged, fragmentary, sectional view through 5-5 of FIGURE 4 showing an aspirator adapted for use in the inhalant unit;
FIGURE 6 is a front view of one of the mask'valves with portions broken away to illustrate its internal construction;
FIGURE 7 is a sectional view thereof taken through 77 of FIGURE 6. 7 I
The oxygen and inhalant mask includes a mask member 1 formed of translucent or transparent plastic material, preferably a material which is also yieldable to a limited extent.
The mask 1 is essentially pear-shaped in front aspect. The base or open side of the mask is provided with a marginal flange 2. The upper or apex end of the mask 1 is provided with a recess 3 which fits over the bridge of the nose between the eyes of the patient. The base side continues downwardly from the recess 3, over the cheeks, and then under the chin of the patient, and tends to seal against the flesh, particularly when the mask is pressed against the face.
In order to secure the mask 1 in place, the marginal flange 2 is provided with laterally extending tabs 4 which are slit to receive a head-encircling elastic band, not shown. e
The upper forward portion 5 of the mask 1 covers the nose of the patient and is spaced therefrom. Opposite sides of this portion are provided with valve apertures 6, each of which receives a valve '7.
Each valve 7 includes a pair of mating ring members 8 and 9 having annular telescoping flanges so that these members form therebetween an angular groove 10. Each valve 7 is dimensioned so that it may be forced into the corresponding aperture 6 until the margins of the aperture fit in the groove 10.
The ring members 8 and 9 form therebetween a valve cavity 11 in which is loosely positioned a plate valve element 12. One of the ring members forms a valve seat for engagement by'the valve element 12, whereas the other ring member is provided with stop lugs 13, so that the plate valve element 12 functions as a check valve.
Each valve 7 may be inserted either side out in its aperture so that each valve may be positioned to function as an exhaling valve or an inhaling valve.
The nose covering portion 5 terminates in. a downwardly facing ofiset wall 14 which is inclined downwardly and rearwardly, is disposed below the end of the nose of the patient, and is spaced therefrom when the mask is worn. The wall 14 is provided with an aperture 15 in approximate alignment with the nasal passages of the nose.
Forwardly of the chin of the patient the mask member 1 is provided with a lower frontal portion 16 joined to the wall 14 to provide space for an oxygen or inhalant unit.
Shown in connection with FIGURE 1 is a cylindrical oxygen inlet tube 17 of plastic material having pairs of ribs which form grooves 13. The cylindrical oxygen unit 17 is dimensioned so that it may be forced into the aperture 15 and located at different axial positions with respect to the patients nose.
The outer or lower end of the oxygen unit 17 is provided with a cap 19 having a tubular stem 20. The stem 26) is adapted to be inserted in an adapter fitting 21. The adapter fitting 21 is formed of a yieldable plastic material and may be provided with internal screw threads 22 dimensioned so as to be forced over the stem 20 which need not be screw-threaded.
The adapter fitting 21 is also provided with external screw threads 23 which not only provide corrugations to aid in forcing the adapter fitting 21 onto the stem 20 but also to provide a screw-threaded means for con- Q nection to other devices, not shown. The extended end of the adapter fitting 21 terminates in a screw-threaded stem 24 of reduced diameter which is adapted to be forced into a plastic oxygen supply tube 25.
A medicament unit 26, shown in FIGURE 4, may be substituted for the oxygen unit 17. The medicament unit 26 includes a mixing tube 27 having a tubular stem 28 of reduced diameter at its lower end and a removable snap cover 29 at its upper end.
Extending angularly upwardly from one side of the mixing tube 27 is a side tube 30 having an enlarged upper end 31 equipped with pairs of ribs which form grooves 18 similar to the grooves provided in the oxygen unit 17. The enlarged end 31 may be forced into the aperture and adjusted longitudinally with respect to the patients nose.
An aspirator element 32 is adapted to be forced into the stem 28.
In order to adapt the mask to patients having different facial dimensions, particularly to permit the adapting of the mask to a childs face, it is provided with a chin adapter 33 which is generally crescent-shape in form. The chin adapter includes an arcuate portion 34 adapted to fit over the chin of a child, and a crescent-shaped flange 35 extends between the arcuate portion 34 and the chin portion of the mask member 1.
The flange 35 may be provided with a rim 36 which snaps over the marginal flange 2 of the mask member 1. The arcuate portion 34 and flange 35 may be connected by reinforcing ribs 37.
The mask is utilized as an oxygen mask as follows:
The mask is fitted over the mouth and nose of the patient and held in place by the headband connected to the tabs 4. One or both of the valves 7 are arranged as exhaling valves. The oxygen unit 17 is forced into the aperture 15 until it occupies a position in close relation to the nostrils of the patient.
Oxygen is then supplied through the tube and oxygen unit 17, and is drawn immediately into the nostrils of the patient when the patient breathes inward. The oxygen is supplied at low pressure so that when the patient breathes outward there is a tendency to create a back pressure in the nozzle supply unit 17 that blocks the entrance of oxygen until the patient ceases to breathe outward. However, the oxygen is immediately available as the patient again inhales.
When the mask is used as an inhalant mask, the mask operates in substantially the same manner; that is, the enlarged end 31 of the side tube is inserted in the aperture 15. The cover 29 is removed and a small quantity of an inhalant-type medicine is deposited in the lower end of the mixing tube 27 so that the inhalant is mixed with the air or oxygen delivered through the supply tube and stem 28.
The inhalant mixture, like the oyygen, is directed toward the nostrils of the user so as to be drawn immediately therein when the patient inhales. When the patient exhales, the flow tends to be blocked, but the flow is immediately resumed when the patient again inhales.
In some instances, it is desirable to remove one or both of the valves 7. While this results in some dilution of the oxygen or inhalant, the close proximity of the supply tube 17 or 31 minimizes the dilution under normal conditions of operation. However, in the event of an emergency, due to the lack of supply of air or oxygen through the tube 25, sufiicient air is available through the aperture 6.
When the mask is used on a child patient, the chin adapter 33 is inserted.
In practice the mask is packed as a kit, with the childs adapter and with either the oxygen supply unit 17 or medicament unit 26, or both, as well as the supply tube 25.
While particular embodiments of this invention have been shown and described, it is not intended to limit the same to the exact details of the constructions set forth, and it embraces such changes, modifications, and equivalents of the parts and their formation and arrangement as come within the purview of the appended claims.
What is claimed is:
1. A gas inhalation mask comprising: a mask body of yieldable plastic material proportioned to cover the mouth and nose of a wearer, said body having a downwardly facing offset portion spaced below the wearers nose when the mask is Worn, said offset portion having an aperture; and an inlet tube projecting through said aperture, said tube having axially spaced grooves proportioned to selectively receive said offset portion at the margin of said aperture so as to axially adjust said inlet tube with reference to said mask body, whereby to position said inlet tube with its inner end adjusted to proximity to the wearers nose such as to provide a highly concentrated gas delivery to the nose, said inlet tube being so proportioned with relation to said aperture margin to accommodate axial shift of said inlet tube in said aperture from one of said grooves to another.
2. A mask as defined in claim 1, wherein said grooves are of narrow width such as to snugly embrace said aperture margin.
3. A mask as defined in claim 1, wherein said inlet tube embodies integral annular beads arranged in closely spaced pairs each defining a respective one of said grooves.
4. A mask as defined in claim 1, wherein said aperture is circular and said inlet tube has a cylindrical external surface and embodies a plurality of pairs of beads integral with and projecting outwardly from said cylindrical surface, each pair of beads defining a respective one of said grooves, the beads in each pair being closely spaced so as to snugly embrace said aperture margin.
5. A mask as defined in claim 1, wherein said mask body has an exhalation aperture in a side portion thereof.
6. In a gas-inhalation mask, in combination: a mask body of yieldable plastic material having a free margin contoured for fitted contact with a Wearers face surface along a line extending over the bridge of the nose, downwardly on respective sides of the mouth and beneath the chin, and including, as a front portion thereof, a nose section inclined downwardly and forwardly from its upper extremity and terminating in a downwardly and rearwardly inclined olfset portion having an aperture, and a lower frontal portion disposed beneath said offset portion; means for attaching said mask body to the face of a wearer; and a gas inlet tube projecting through said aperture in fitted relation thereto and having on its external surface, a plurality of pairs of relatively closely spaced annular beads, each pair of beads defining a respective annular groove for receiving the aperture-defining margin of said ofi'set portion of the mask body in a manner to fixedly position said inlet tube in said offset portion in a selected position of axial adjustment, said aperturedefining margin and said inlet tube being relatively yieldable in response to axial pressure of said beads whereby said inlet tube can be adjusted axially to vary the extent of projection of its inner end into the mask by locating said marginal portion in any selected one of said grooves, whereby the inner end of said inlet tube can be adjusted to close proximity to the nose of the wearer to provide maximum concentration of oxygen delivery to the nose; said pairs of beads being axially spaced from one another by predetermined spacings providing for predetermined positions of projection of the inner end of said tube into said mask body.
7. A mask as defined in claim 6, wherein said mask body has an exhalation aperture in a side wall of said nose section.
8. A mask as defined in claim 6, including a cap having a snap-fitting rim coupling it to the lower end of said 5 6 inlet tube; and a fitting mounted on said cap, for connec- 2,605,764 8/52 Adams et al. 128-194 XR tion to a length of oxygen-supply tubing. 2,818,861 1/58 Russell 128-205 9. A mask as defined in claim 6, including a pair of 2,823,671 2/58 Garelick 128-146 exhalation valves mounted in openings in respective sides 2,843,122 7/58 Hudson 128146 of said nose section, at least one of said valves being 5 2,856,922 10/58 Kahan 128-203 bodily removable and reversible to constitute an inhalation valve. FOREIGN PATENTS 866,616 4/61 G tB 't References Cited by the Examiner 963,246 12/49, igg U ml UNITED STATES PATENTS 10 938,247 10/09 Kuhn RICHARD A. GAUDET, Primary Examiner. 2,421,359 5/47 Sutherland 128-195 JORDAN FRANKLIN, Examiner.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US938247 *||28 Dec 1906||26 Oct 1909||Ernst Kuhn||Breathing-mask.|
|US2421359 *||20 Jun 1944||27 May 1947||Scott Sutherland Thomas||Atomiser|
|US2605764 *||23 Jan 1948||5 Aug 1952||Adams Frank H||Apparatus for nebulizing|
|US2818861 *||7 Aug 1952||7 Jan 1958||Russell Allan M||Oxygen mask|
|US2823671 *||29 Mar 1954||18 Feb 1958||Pulmosan Safety Equipment Corp||Respirator|
|US2843122 *||31 Jul 1956||15 Jul 1958||Hudson Charles H||Breathing mask|
|US2856922 *||28 Feb 1957||21 Oct 1958||Kahan Jacob M||Gas dispenser|
|FR963246A *||Title not available|
|GB866616A *||Title not available|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3809079 *||14 Sep 1972||7 May 1974||E Med Corp||Resuscitator|
|US4219020 *||9 Aug 1978||26 Aug 1980||Fraser Sweatman, Inc.||Scavenger valve attachment for inhalation sedation system mask|
|US4343304 *||17 Jul 1980||10 Aug 1982||Hickmann Horst R||Veterinary inhalation therapy apparatus|
|US4637387 *||27 May 1983||20 Jan 1987||Hall Lester B||Breathing apparatus|
|US4860764 *||1 Oct 1987||29 Aug 1989||Mechanical Service Co., Inc.||Air flow sensor|
|US4862898 *||1 Oct 1987||5 Sep 1989||Mechanical Service Co. Inc.||Air flow sensor|
|US5586551 *||17 Jul 1995||24 Dec 1996||Hilliard; Kenneth R.||Oxygen mask with nebulizer|
|US5988160 *||25 Apr 1997||23 Nov 1999||Trudell Medical Limited||Exhalation valve for face mask with spacer chamber connection|
|US6044844 *||2 Dec 1997||4 Apr 2000||Resmed Limited||Mask and harness assembly|
|US6112746 *||31 Jan 1997||5 Sep 2000||Resmed Limited||Nasal mask and mask cushion therefor|
|US6119693 *||16 Jan 1998||19 Sep 2000||Resmed Limited||Forehead support for facial mask|
|US6123082 *||3 Oct 1997||26 Sep 2000||Resmed Limited||Device for preventing or reducing the passage of air through the mouth|
|US6357441||16 Jul 1997||19 Mar 2002||Resmed Limited||Nasal mask and mask cushion therefor|
|US6463931||30 Jun 2000||15 Oct 2002||Resmed Limited||Forehead support for facial mask|
|US6494207||2 Dec 1997||17 Dec 2002||Resmed Limited||Harness assembly for a nasal mask|
|US6513526||21 May 1999||4 Feb 2003||Resmed Limited||Full-face mask and mask cushion therefor|
|US6557556||13 May 2002||6 May 2003||Resmed Limited||Forehead support for facial mask|
|US6561190 *||10 Feb 1998||13 May 2003||Resmed Limited||Mask and a vent assembly therefor|
|US6581602||8 Feb 2002||24 Jun 2003||Resmed Limited||Nasal mask and mask cushion therefor|
|US6634358||8 May 2000||21 Oct 2003||Resmed Limited||Nasal mask cushion assembly|
|US6691708||29 Aug 2002||17 Feb 2004||Resmed Limited||Forehead support for facial mask|
|US6701927||11 Jun 2002||9 Mar 2004||Resmed Limited||Full-face mask and mask cushion therefor|
|US6860269||4 Oct 2002||1 Mar 2005||Resmed Limited||Forehead support for facial mask|
|US6871649||6 Dec 2001||29 Mar 2005||Resmed Limited||Nasal mask cushion assembly|
|US6973929||17 Dec 2002||13 Dec 2005||Resmed Limited||Forehead support for a facial mask|
|US6997188||15 Sep 2003||14 Feb 2006||Resmed Limited||Forehead support for facial mask|
|US7000614||14 Mar 2002||21 Feb 2006||Map Medizin-Technologie Gmbh||Breathing mask arrangement and a forehead support device for same|
|US7004162||30 Sep 1999||28 Feb 2006||Canadian Monaghan, Ltd.||Exhalation valve|
|US7007696||16 May 2002||7 Mar 2006||Tiara Medical Systems, Inc.||Mask cushion and method of using same|
|US7013896||6 May 2002||21 Mar 2006||Trudell Medical International||Mask with inhalation valve|
|US7036508||30 Apr 2002||2 May 2006||Resmed Limited||Harness assembly for a nasal mask|
|US7069933||12 Nov 2003||4 Jul 2006||Resmed Limited||Breathing mask and mask cushion therefor|
|US7082947 *||28 Oct 2004||1 Aug 2006||Smaldone Gerald C||Face mask for use in pressurized drug delivery systems|
|US7100610||16 Oct 2001||5 Sep 2006||Map Medizintechnologie Gmbh||Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas|
|US7178527||11 Feb 2002||20 Feb 2007||Resmed Limited||Nasal mask and mask cushion therefor|
|US7234466||4 Nov 2003||26 Jun 2007||Resmed Limited||Forehead support for facial mask|
|US7243651||7 Sep 2004||17 Jul 2007||Resmed Limited||Cushion and mask therefor|
|US7290546||22 Mar 2003||6 Nov 2007||Invacare Corporation||Nasal mask|
|US7320323||22 Oct 2002||22 Jan 2008||Map Medizin-Technologie Gmbh||Breathing mask device and application device and frontal support device thereof|
|US7406965||5 May 2004||5 Aug 2008||Resmed Limited||Forehead support for facial mask|
|US7472704||2 Mar 2005||6 Jan 2009||Resmed Limited||Forehead support for facial mask|
|US7503327||9 Apr 2004||17 Mar 2009||Resmed Limited||Mask with integral cushion and forehead piece|
|US7610916||28 Aug 2006||3 Nov 2009||Resmed Limited||Forehead support for facial mask|
|US7621274||23 Jun 2003||24 Nov 2009||Invacare Corporation||Nasal mask|
|US7654263||13 May 2005||2 Feb 2010||Map Medizin-Technologie Gmbh||Breathing mask arrangement and a forehead support device for same|
|US7762259||17 Dec 2007||27 Jul 2010||Resmed Limited||Mask with integral cushion and forehead piece|
|US7775209||25 Jul 2006||17 Aug 2010||Map Medizintechnologie Gmbh||Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas|
|US7882837||8 Feb 2011||Resmed Limited||Forehead support for facial mask|
|US7942149||5 Jan 2009||17 May 2011||Resmed Limited||Forehead support for a facial mask|
|US7950392||13 Jul 2007||31 May 2011||Resmed Limited||Cushion and mask therefor|
|US7967014||25 Apr 2006||28 Jun 2011||Map Medizin-Technologie Gmbh||Application device for breathing mask arrangement|
|US7992559||28 Nov 2007||9 Aug 2011||Map Medizin-Technologie Gmbh||Breathing mask arrangement as well as an application device and a forehead support device for same|
|US8028698||17 Sep 2007||4 Oct 2011||Invacare Corporation||Breathing mask|
|US8042538||20 Feb 2004||25 Oct 2011||Resmed Limited||Nasal mask assembly|
|US8056561||12 May 2006||15 Nov 2011||Resmed Limited||Full-face mask and mask cushion therefor|
|US8122886 *||27 Dec 2006||28 Feb 2012||Resmed Limited||Respiratory mask assembly with vent|
|US8186348||23 Sep 2009||29 May 2012||Resmed Limited||Forehead support for facial mask|
|US8210180||30 Jun 2010||3 Jul 2012||Resmed Limited||Mask with integral cushion and forehead piece|
|US8353294||21 Mar 2011||15 Jan 2013||Resmed Limited||Respiratory mask assembly|
|US8371301||9 Jul 2010||12 Feb 2013||Resmed R&D Germany Gmbh||Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas|
|US8402972||27 Aug 2009||26 Mar 2013||Resmed R&D Germany Gmbh||Breathing mask arrangement and a forehead support device for same|
|US8464715||14 Apr 2009||18 Jun 2013||Stephen Donald Flynn, SR.||Multipurpose therapeutic face mask|
|US8479738||20 May 2011||9 Jul 2013||Resmed R&D Germany Gmbh||Breathing mask arrangement as well as an application device and a forehead support device for same|
|US8485192||29 Jun 2012||16 Jul 2013||Resmed Limited||Cushion for patient interface|
|US8505535||23 Dec 2009||13 Aug 2013||Resmed Limited||Mask system|
|US8517023||29 Jan 2008||27 Aug 2013||Resmed Limited||Mask system with interchangeable headgear connectors|
|US8522783||16 May 2011||3 Sep 2013||Resmed Limited||Cushion and mask therefor|
|US8522784||23 Jan 2013||3 Sep 2013||Resmed Limited||Mask system|
|US8522785||5 Aug 2003||3 Sep 2013||Resmed Limited||Inextensible headgear and CPAP or ventilator mask assembly with the same|
|US8528558||15 Mar 2011||10 Sep 2013||Resmed Limited||Respiratory mask having washout vent and gas washout vent assembly for a respiratory mask|
|US8528561||18 Jan 2013||10 Sep 2013||Resmed Limited||Mask system|
|US8550081||29 Nov 2012||8 Oct 2013||Resmed Limited||Cushion for patient interface|
|US8550082||29 Nov 2012||8 Oct 2013||Resmed Limited||Cushion for patient interface|
|US8550083||29 Nov 2012||8 Oct 2013||Resmed Limited||Cushion for patient interface|
|US8550084||27 Feb 2009||8 Oct 2013||Resmed Limited||Mask system|
|US8555885||29 Nov 2012||15 Oct 2013||Resmed Limited||Cushion for patient interface|
|US8567404||14 Nov 2012||29 Oct 2013||Resmed Limited||Cushion for patient interface|
|US8573213||14 Nov 2012||5 Nov 2013||Resmed Limited||Cushion for patient interface|
|US8573214||28 Nov 2012||5 Nov 2013||Resmed Limited||Cushion for patient interface|
|US8573215||29 Nov 2012||5 Nov 2013||Resmed Limited||Cushion for patient interface|
|US8578935||29 Nov 2012||12 Nov 2013||Resmed Limited||Cushion for patient interface|
|US8613280||14 Nov 2012||24 Dec 2013||Resmed Limited||Cushion for patient interface|
|US8613281||29 Nov 2012||24 Dec 2013||Resmed Limited||Cushion for patient interface|
|US8616211||29 Nov 2012||31 Dec 2013||Resmed Limited||Cushion for patient interface|
|US8636006||3 Jan 2007||28 Jan 2014||Resmed Limited||Mask|
|US8646450||29 Mar 2011||11 Feb 2014||Resmed Limited||Forehead support for a facial mask|
|US8746250||28 Jan 2013||10 Jun 2014||Resmed R&D Germany Gmbh|
|US8757162||2 Nov 2010||24 Jun 2014||Resmed Limited||Nasal assembly|
|US8794239||19 Jun 2012||5 Aug 2014||Resmed Limited||Mask with integral cushion and forehead piece|
|US8813748||10 Nov 2011||26 Aug 2014||Resmed Limited||Full-face mask and mask cushion therefor|
|US8826910||11 Feb 2013||9 Sep 2014||Resmed Limited||Mask and vent assembly therefor|
|US8833371||11 Nov 2010||16 Sep 2014||Resmed Limited||Mask and vent assembly therefor|
|US8869797||18 Apr 2008||28 Oct 2014||Resmed Limited||Cushion and cushion to frame assembly mechanism for patient interface|
|US8875710||17 May 2011||4 Nov 2014||Resmed R&D Germany Gmbh||Application device for a breathing mask arrangement|
|US8944061||15 Mar 2013||3 Feb 2015||Resmed Limited||Cushion to frame assembly mechanism|
|US8960196||29 May 2013||24 Feb 2015||Resmed Limited||Mask system with interchangeable headgear connectors|
|US9027556||23 Jan 2013||12 May 2015||Resmed Limited||Mask system|
|US9072853||15 Nov 2010||7 Jul 2015||Resmed Limited||Forehead pad for respiratory mask|
|US9119931||31 Jul 2014||1 Sep 2015||Resmed Limited||Mask system|
|US9144656||21 Jun 2013||29 Sep 2015||Resmed R&D Germany Gmbh||Breathing mask arrangement as well as an application device and a forehead support device for same|
|US20040045550 *||14 Mar 2002||11 Mar 2004||Bernd Lang||Breathing mask arrangement and a forehead support device for same|
|US20040094159 *||12 Nov 2003||20 May 2004||Resmed Limited||Breathing mask and mask cushion therefor|
|US20040182398 *||23 Jun 2003||23 Sep 2004||Tom Sprinkle||Nasal mask|
|US20050005940 *||9 Apr 2004||13 Jan 2005||Resmed Limited||Mask with integral cushion and forehead piece|
|US20050022818 *||7 Sep 2004||3 Feb 2005||Resmed Limited||Cushion and mask therefor|
|US20050139219 *||2 Mar 2005||30 Jun 2005||Resmed Limited||Forehead support for facial mask|
|US20050150496 *||28 Oct 2004||14 Jul 2005||Smaldone Gerald D.||Face mask for use in pressurized drug delivery systems|
|US20060011202 *||19 Aug 2005||19 Jan 2006||Resmed Limited||Forehead support for facial mask|
|US20090293881 *||29 May 2009||3 Dec 2009||Graham William B||Mask for oxygen delivery with medication inlet|
|USD428987||25 Aug 1997||1 Aug 2000||Resmed Limited||Nasal mask shell|
|USD498529||14 Jan 2003||16 Nov 2004||Resmed Limited||Portion of a cushion for use with a mask assembly in the application of continuous positive airway pressure (CPAP)|
|EP1854493A2 *||11 May 2007||14 Nov 2007||Intersurgical AG||Improvements relating to gas delivery apparatus|
|EP1854493A3 *||11 May 2007||2 Apr 2008||Intersurgical AG||Improvements relating to gas delivery apparatus|
|U.S. Classification||128/207.12, 128/203.29, 128/200.21, D24/110.4|
|International Classification||A61M11/06, A61M16/06, A61M15/00, A61M16/08|
|Cooperative Classification||A61M2015/0016, A61M16/06, A61M11/06, A61M16/0816, A61M15/00, A61M2015/0018|
|European Classification||A61M15/00, A61M11/06, A61M16/06|