US1632449A - Mask - Google Patents

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Publication number
US1632449A
US1632449A US726476A US72647624A US1632449A US 1632449 A US1632449 A US 1632449A US 726476 A US726476 A US 726476A US 72647624 A US72647624 A US 72647624A US 1632449 A US1632449 A US 1632449A
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United States
Prior art keywords
mask
frame
rubber
flap
plies
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Expired - Lifetime
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US726476A
Inventor
Elmer I Mckessson
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Elmer I Mckessson
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Priority to US726476A priority Critical patent/US1632449A/en
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Publication of US1632449A publication Critical patent/US1632449A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/02Masks
    • A62B18/025Halfmasks

Description

v 17632349 June 1927' E. I. McKESSON MASK Filed July 17 1924 2 Sheets-Sheet 1 INVENTEI 25W A1":- TEX June 14, 1927. 1,632,449

E. l. M KESSQN MASK Filed July 17, 1924 2 Sheets-Sheet 2 lNVENTu U NEY Patented June 14,1921.

ELMEBII. u xnsson, or TOLEDO, 01:10.

MASK.

Application as July 17,

" This invention relates to adaptable articles, I

semi-stable as to their form, with special readily manipulated or will automatically A duct 1 as a source of nitrous oxid and oxygen, is s ving in Y-fitting 2'having branches 3 therefrom to L-fittin s structure thereof;

conform in adapting to varying facial proportions as gas tight fittings for the administration of anaesthetic, restorative, or treatment gases through oral and nasal orifices of atients.

eferringto the drawings: Fig. 1 is a' fragmentary viewof an embodiment of the invention as a nasal mask;

Fi .2 is' a view looking into'the mask as aapted to a wide nose; v

Fig. 3 is a view similar to Fig. 2 with the, maskreadapted for a narrow nose; parts being broken away to show more clearly the mask openingrestrictin flap;

Fig. 4 is a side elevation of the mas partially pulled open to disclose the bullt up Fig. 5 is a detail view of a wire cloth cup for a mask frame lamination; v

Fig. 6 shows an embodiment of the invention in a face "mask for fitting over both the nose and mouth; Y F Fig. 7 is a section on the line VII-VII, i.6; ig. 8 isda view looking into the mask of N 9 is a partial section on the line IX- X, Fig. 8.

as supply,- say own terminat- 4 having-threaded ends as protruding t rough openings 5 in the mask walls extending to the mask interior and there engaged by a nut 6 to effect gas tight detechable' assembly. I

The mask is shown as built up of laminations, preferably rubber and wire cloth. Uncured rubber sheet .7 is placed over a dome shaped form or mold. Perforate or mesh providing metal sheet of wire cloth 8 cu pad to approximate the form of the mo] is-placed over the sheet 7, and the outer mold element is brought into position thereover for cold pressin these two plies -into assembly with the ru her to an ent hitting with or enterin into the me'shesof the cloth 8. Additiona ply 9 of rubber is then placed over the sheet 8 and cold pressed,

andlikewise a second ply 10 of wire cloth 198. Serial No. 726,476.

over the ply 9 is cold pressed therewith. A final ply 11 of rubber over this outer cloth 10, completes the assembly of the lies of uncured rubber and the metal in buil g up the mask frame.

With the plies assembled in the frame, the perforations are made for the openings 5, and the mask frame subjected to steam press action for curing. A

Studs 12 one for each side'of the mask,

are Y rivete in osition therewith. These may be engaged y loops 13 of harness 14 to extend about the head of the atient for yieldably holding the mask in t e desired position on the atients face. The twin connections 3 to t e mask, render it bi-laterally symmetrical, with no tendency to be twisted away from it's location a surgeon or attendant be holding or shifting the patients he of removal of tonsils.

'The cups 8, 10,- are preferably given a binding 15, say of tape, the so-called friction tape as used in connection with rubber repair work. This gives the wires of'the cloth a holding againet fraying out, resists working of the wire, e ds' into the rubber and out of the mask wal s, and as the plies of the rubber extend slightl beyond the wireeven though ad, say during the course mask or cup opening which is restricted by I flap 17 from the p y -7. This fla 17 is elastic, normally extending-inward y from the mask opening, and in a nasal mask preferably has a marginal extent coextensive with i the nose seating portions, but may be absent at lip engaging portion 18 of the mask, for at this portion the mask may ride up snugly in such fleshy lip portion to effect gas tight sealing.

' The mask isshown as having outlet'o ening 19 to chamber 20 as a metal fitting aving set screw 21 adjustable to vary the action of spring 22 resisting the u'nseating of valve disk 23, therebyv allowing exhalation escape ,by openings 24, 25;

The frame of the mask, notwithstanding it is largely of rubber. is rendered inelastic,

though left pliable, while the flap 17 as ainask curtain is elastic. The

opening restricting p iable properl o thev .inask to be manipulated into widely varying forms in adapting to the man types of faces, and in suchadaptation pr uces a gas tight fitting.

the mask frame permits In carrying out the invention hereof for that type of mask which may cover both the nose and the mouth the cup frame or body may be generally of the type shown for the nasal mask in Fig. 1. In practice, there ma not be as much occasion for this type of ma to be mani ulated for giving it difierent forms or s apes althoug such may be a feature thereof.

Herein, the hollow channel or head 16 with the flap gether coact 1n producin a structure which when held against the ace of the patient will, as to the rib or bead 16, conform generally to the various features of the patient, while the flap 17 inwardly therefrom as distended by the bead 16, readily lies against the skin of the facein a sealing relation. These features, accordingly, give this face mask 26 a range of effective sealing use, even for applying pressure in deliverin gases to the patient with a known relations ip of the ingredients of suchgases, say for anaesthesia, due to the fact that there is no leakage either way about this mask as sealing on the face of the patient.

In practice it may be convenient to have these masks interchangeable, say for infant and adult sizes. To this end, the mask 26 is provided with an extension 27 integral with the body of the mask 26. This extension 27 has molded therein metallic sleeve 28 which may have the tapered rubber thereon providean easy assembly .gas ti ht friction fitting as a slip joint with tu ular extension 29 as a fitting on the duct 1. The flap 17 as extending inwardly from the head 16, is

17 inwardly therefrom, to-

yieldably held in shape and does not curl on itself or have any cur ing action whatsoever. This sealing is directly against the face of the wearer as a flat engagm portion.

What is claimed and it is esired to secure by Letters Patent is:

1. A mask embodyin a pliable inelastic frame including plies 0 wire cloth with its warp and woof of overlapping plies angularly ofli'set, said frame having an opemng variable by frame manipulation to retain different adjustments, said frame includin elastic plies of sheet rubber, one of whic extends beyond said frame as an opening restricting flap;

2. A mask-embod ing a pair of wire cloth cups, a ply of rub er therebetween, and a pair of housing plies thereover, one of said plies extending to form a flap at the on opening, the other terminating beyond sai cups to provide a holdin lip directed inwardly from which sai fiap extends in opening restricting position.

3. A mask having a pliable unitary inelastic body providing an openin there being a flexible elastic web integra with said body and continuous from both-the inner and outer walls of the mask body and inwardly extending from the body at said opening for restricting said 0 ening effective extent, said web. being hel by the body against curling and in mask use u on the face of a patient being directed by t e body into fiat adherent position over the patient s face as a marginal seal for the mask.

In witness-whereof I aflix my signature.

ELMER I. MCKESSON.

US726476A 1924-07-17 1924-07-17 Mask Expired - Lifetime US1632449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US726476A US1632449A (en) 1924-07-17 1924-07-17 Mask

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US726476A US1632449A (en) 1924-07-17 1924-07-17 Mask

Publications (1)

Publication Number Publication Date
US1632449A true US1632449A (en) 1927-06-14

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Family Applications (1)

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US726476A Expired - Lifetime US1632449A (en) 1924-07-17 1924-07-17 Mask

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Cited By (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2675803A (en) * 1954-04-20 Gas feeding mask
US2765788A (en) * 1954-01-04 1956-10-09 Davol Rubber Co Surgical face mask
US2853998A (en) * 1955-02-28 1958-09-30 John H Emerson Respirator casing and methods of producing the same
US4015598A (en) * 1975-09-05 1977-04-05 Brown Glenn E Anaesthesic system
US4655213A (en) * 1983-10-06 1987-04-07 New York University Method and apparatus for the treatment of obstructive sleep apnea
FR2596282A1 (en) * 1986-03-27 1987-10-02 Draegerwerk Ag Respiratory mask made of an elastic mold body
US4782832A (en) * 1987-07-30 1988-11-08 Puritan-Bennett Corporation Nasal puff with adjustable sealing means
US4944310A (en) * 1981-04-24 1990-07-31 Somed Pty. Ltd. Device for treating snoring sickness
US5018519A (en) * 1990-08-03 1991-05-28 Brown Glenn E Mask for adminstering an anesthetic gas to a patient
US5065756A (en) * 1987-12-22 1991-11-19 New York University Method and apparatus for the treatment of obstructive sleep apnea
US5267557A (en) * 1992-08-17 1993-12-07 Her Mou Lin Nose mask with a filtering device
US5474060A (en) * 1993-08-23 1995-12-12 Evans; David Face mask with gas sampling port
US5477852A (en) * 1991-10-29 1995-12-26 Airways Ltd., Inc. Nasal positive airway pressure apparatus and method
US5584286A (en) * 1993-01-13 1996-12-17 Kippax; John E. Integrated breathing system
US5657752A (en) * 1996-03-28 1997-08-19 Airways Associates Nasal positive airway pressure mask and method
US5687715A (en) * 1991-10-29 1997-11-18 Airways Ltd Inc Nasal positive airway pressure apparatus and method
US5738094A (en) * 1996-08-30 1998-04-14 Hoftman; Moshe Anesthesia/respirator mask with reduced nasal section enclosure and inflatable cuff
US6019101A (en) * 1996-10-31 2000-02-01 Sleepnet Corporation Nasal air mask
US6035852A (en) * 1996-08-30 2000-03-14 Hoftman; Moshe Inflated cuff anesthesia/respirator mask with improved nasal/maxilla bone adaptation
US6581602B2 (en) 1996-07-26 2003-06-24 Resmed Limited Nasal mask and mask cushion therefor
WO2003066146A1 (en) * 2002-02-04 2003-08-14 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
US20030154980A1 (en) * 1991-12-20 2003-08-21 Michael Berthon-Jones Patient interface for respiratory apparatus
US6631718B1 (en) 1999-06-08 2003-10-14 Sleepnet Corporation Air mask with seal
US20040035427A1 (en) * 2002-08-20 2004-02-26 Bordewick Steven S. Face mask support
US6701927B2 (en) 1996-07-26 2004-03-09 Resmed Limited Full-face mask and mask cushion therefor
US20040221850A1 (en) * 2003-02-21 2004-11-11 Resmed Limited Nasal mask assembly
US20040226566A1 (en) * 2003-02-21 2004-11-18 Resmed Limited Nasal assembly
US6851425B2 (en) 2001-05-25 2005-02-08 Respironics, Inc. Exhaust port assembly for a pressure support system
US20060231102A1 (en) * 2002-08-20 2006-10-19 Bordewick Steven S Face mask support
US7210481B1 (en) * 1999-06-08 2007-05-01 Sleepnet Corporation Nose mask
US20070246043A1 (en) * 2004-04-15 2007-10-25 Resmed Limited Positive-Air-Pressure Machine Conduit
US7290546B2 (en) 2002-03-22 2007-11-06 Invacare Corporation Nasal mask
US20080053451A1 (en) * 2002-08-20 2008-03-06 Bordewick Steven S Face mask support
US20080066761A1 (en) * 2006-09-18 2008-03-20 Invacare Corporation Breathing mask
WO2008106716A1 (en) * 2007-03-02 2008-09-12 Resmed Ltd Respiratory mask
US7621274B2 (en) 2003-03-22 2009-11-24 Invacare Corporation Nasal mask
US20110030692A1 (en) * 2003-05-02 2011-02-10 Resmed Limited Mask system
US8297285B2 (en) 2006-07-28 2012-10-30 Resmed Limited Delivery of respiratory therapy
US8371301B2 (en) 2000-10-19 2013-02-12 Resmed R&D Germany Gmbh Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas
US8402972B2 (en) 2002-01-17 2013-03-26 Resmed R&D Germany Gmbh Breathing mask arrangement and a forehead support device for same
US8479738B2 (en) 2001-10-22 2013-07-09 Resmed R&D Germany Gmbh Breathing mask arrangement as well as an application device and a forehead support device for same
US8485192B2 (en) 2005-01-12 2013-07-16 Resmed Limited Cushion for patient interface
US8517023B2 (en) 2007-01-30 2013-08-27 Resmed Limited Mask system with interchangeable headgear connectors
US8522784B2 (en) 2008-03-04 2013-09-03 Resmed Limited Mask system
US8869797B2 (en) 2007-04-19 2014-10-28 Resmed Limited Cushion and cushion to frame assembly mechanism for patient interface
US8875710B2 (en) 2001-10-22 2014-11-04 Resmed R&D Germany Gmbh Application device for a breathing mask arrangement
US8944061B2 (en) 2005-10-14 2015-02-03 Resmed Limited Cushion to frame assembly mechanism
US9072853B2 (en) 2001-09-07 2015-07-07 Resmed Limited Forehead pad for respiratory mask
US9381316B2 (en) 2005-10-25 2016-07-05 Resmed Limited Interchangeable mask assembly
US10245403B2 (en) 2001-10-22 2019-04-02 RedMed R&D Germany GmbH Breathing mask arrangement as well as an application device and a forehead support device for same

Cited By (141)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2675803A (en) * 1954-04-20 Gas feeding mask
US2765788A (en) * 1954-01-04 1956-10-09 Davol Rubber Co Surgical face mask
US2853998A (en) * 1955-02-28 1958-09-30 John H Emerson Respirator casing and methods of producing the same
US4015598A (en) * 1975-09-05 1977-04-05 Brown Glenn E Anaesthesic system
US4944310A (en) * 1981-04-24 1990-07-31 Somed Pty. Ltd. Device for treating snoring sickness
US4655213A (en) * 1983-10-06 1987-04-07 New York University Method and apparatus for the treatment of obstructive sleep apnea
FR2596282A1 (en) * 1986-03-27 1987-10-02 Draegerwerk Ag Respiratory mask made of an elastic mold body
US4782832A (en) * 1987-07-30 1988-11-08 Puritan-Bennett Corporation Nasal puff with adjustable sealing means
USRE35339E (en) * 1987-12-22 1996-10-01 New York University Method and apparatus for the treatment of obstructive sleep apnea
US5065756A (en) * 1987-12-22 1991-11-19 New York University Method and apparatus for the treatment of obstructive sleep apnea
US5018519A (en) * 1990-08-03 1991-05-28 Brown Glenn E Mask for adminstering an anesthetic gas to a patient
US5477852A (en) * 1991-10-29 1995-12-26 Airways Ltd., Inc. Nasal positive airway pressure apparatus and method
US5687715A (en) * 1991-10-29 1997-11-18 Airways Ltd Inc Nasal positive airway pressure apparatus and method
US20070119454A1 (en) * 1991-12-20 2007-05-31 Resmed Limited Patient interface assembly for CPAP respiratory apparatus
US7302950B2 (en) * 1991-12-20 2007-12-04 Resmed Limited Patient interface for respiratory apparatus
US7931023B2 (en) 1991-12-20 2011-04-26 Resmed Limited Patient interface assembly for CPAP respiratory apparatus
US20030154980A1 (en) * 1991-12-20 2003-08-21 Michael Berthon-Jones Patient interface for respiratory apparatus
US5267557A (en) * 1992-08-17 1993-12-07 Her Mou Lin Nose mask with a filtering device
US5584286A (en) * 1993-01-13 1996-12-17 Kippax; John E. Integrated breathing system
US5474060A (en) * 1993-08-23 1995-12-12 Evans; David Face mask with gas sampling port
US5657752A (en) * 1996-03-28 1997-08-19 Airways Associates Nasal positive airway pressure mask and method
US8522783B2 (en) 1996-07-26 2013-09-03 Resmed Limited Cushion and mask therefor
US7950392B2 (en) 1996-07-26 2011-05-31 Resmed Limited Cushion and mask therefor
US20070261697A1 (en) * 1996-07-26 2007-11-15 Resmed Limited Cushion and mask therefor
US6634358B2 (en) 1996-07-26 2003-10-21 Resmed Limited Nasal mask cushion assembly
US6871649B2 (en) 1996-07-26 2005-03-29 Resmed Limited Nasal mask cushion assembly
US8056561B2 (en) 1996-07-26 2011-11-15 Resmed Limited Full-face mask and mask cushion therefor
US6701927B2 (en) 1996-07-26 2004-03-09 Resmed Limited Full-face mask and mask cushion therefor
US20040094159A1 (en) * 1996-07-26 2004-05-20 Resmed Limited Breathing mask and mask cushion therefor
US8813748B2 (en) 1996-07-26 2014-08-26 Resmed Limited Full-face mask and mask cushion therefor
US6581602B2 (en) 1996-07-26 2003-06-24 Resmed Limited Nasal mask and mask cushion therefor
US20050022818A1 (en) * 1996-07-26 2005-02-03 Resmed Limited Cushion and mask therefor
US20070107735A1 (en) * 1996-07-26 2007-05-17 Resmed Limited Mask
US9463295B2 (en) 1996-07-26 2016-10-11 Resmed Limited Mask and mask cushion therefor
US7069933B2 (en) * 1996-07-26 2006-07-04 Resmed Limited Breathing mask and mask cushion therefor
US7243651B2 (en) 1996-07-26 2007-07-17 Resmed Limited Cushion and mask therefor
US9421339B2 (en) 1996-07-26 2016-08-23 Resmed Limited Patient interface
US8636006B2 (en) 1996-07-26 2014-01-28 Resmed Limited Mask
US5738094A (en) * 1996-08-30 1998-04-14 Hoftman; Moshe Anesthesia/respirator mask with reduced nasal section enclosure and inflatable cuff
US6035852A (en) * 1996-08-30 2000-03-14 Hoftman; Moshe Inflated cuff anesthesia/respirator mask with improved nasal/maxilla bone adaptation
US6019101A (en) * 1996-10-31 2000-02-01 Sleepnet Corporation Nasal air mask
US6631718B1 (en) 1999-06-08 2003-10-14 Sleepnet Corporation Air mask with seal
US7210481B1 (en) * 1999-06-08 2007-05-01 Sleepnet Corporation Nose mask
US7219669B1 (en) 1999-06-08 2007-05-22 Sleepnet Corporation Nose mask
US8371301B2 (en) 2000-10-19 2013-02-12 Resmed R&D Germany Gmbh Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas
US9662467B2 (en) 2000-10-19 2017-05-30 Resmed R&D Germany Gmbh Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas
US8746250B2 (en) 2000-10-19 2014-06-10 Resmed R&D Germany Gmbh Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas
US20050126573A1 (en) * 2001-05-25 2005-06-16 Respironics, Inc. Exhaust port assembly for a pressure support system
US7568482B2 (en) 2001-05-25 2009-08-04 Ric Investments, Llc Exhaust port assembly for a pressure support system
US8061355B2 (en) 2001-05-25 2011-11-22 Ric Investments, Llc. Exhaust port assembly for a pressure support system
US6851425B2 (en) 2001-05-25 2005-02-08 Respironics, Inc. Exhaust port assembly for a pressure support system
US20090272380A1 (en) * 2001-05-25 2009-11-05 Koninklijke Philips Electronics, N.V. Exhaust port assembly for a pressure support system
US9072853B2 (en) 2001-09-07 2015-07-07 Resmed Limited Forehead pad for respiratory mask
US10195385B2 (en) 2001-09-07 2019-02-05 Resmed Limited Forehead pad for respiratory mask
US9144656B2 (en) 2001-10-22 2015-09-29 Resmed R&D Germany Gmbh Breathing mask arrangement as well as an application device and a forehead support device for same
US8875710B2 (en) 2001-10-22 2014-11-04 Resmed R&D Germany Gmbh Application device for a breathing mask arrangement
US9889266B2 (en) 2001-10-22 2018-02-13 Resmed R&D Germany Gmbh Breathing mask arrangement as well as an application device and a forehead support device for same
US10058671B2 (en) 2001-10-22 2018-08-28 Resmed R&D Germany Gmbh Application device for a breathing mask arrangement
US8479738B2 (en) 2001-10-22 2013-07-09 Resmed R&D Germany Gmbh Breathing mask arrangement as well as an application device and a forehead support device for same
US10245403B2 (en) 2001-10-22 2019-04-02 RedMed R&D Germany GmbH Breathing mask arrangement as well as an application device and a forehead support device for same
US9757534B2 (en) 2001-10-22 2017-09-12 Resmed R&D Germany Gmbh Breathing mask arrangement as well as an application device and a forehead support device for same
US8402972B2 (en) 2002-01-17 2013-03-26 Resmed R&D Germany Gmbh Breathing mask arrangement and a forehead support device for same
US9259549B2 (en) 2002-01-17 2016-02-16 Resmed R&D Germany Gmbh Breathing mask arrangement and a forehead support device for same
US7341059B2 (en) 2002-02-04 2008-03-11 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
US20100170509A1 (en) * 2002-02-04 2010-07-08 Paul Moody Breathing assistance apparatus
US9750905B2 (en) 2002-02-04 2017-09-05 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
US9913953B2 (en) 2002-02-04 2018-03-13 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
US20050178386A1 (en) * 2002-02-04 2005-08-18 Paul Moody Breathing assistance apparatus
US20040040559A1 (en) * 2002-02-04 2004-03-04 Paul Moody Breathing assistance apparatus
WO2003066146A1 (en) * 2002-02-04 2003-08-14 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
US7290546B2 (en) 2002-03-22 2007-11-06 Invacare Corporation Nasal mask
US20080053451A1 (en) * 2002-08-20 2008-03-06 Bordewick Steven S Face mask support
US6854465B2 (en) 2002-08-20 2005-02-15 Aeiomed, Inc. Face mask support
US7845353B2 (en) 2002-08-20 2010-12-07 Aeiomed, Inc. Face mask support
US20060231102A1 (en) * 2002-08-20 2006-10-19 Bordewick Steven S Face mask support
US8091553B2 (en) 2002-08-20 2012-01-10 Somnetics Global Pte. Ltd. Face mask support
US20040035427A1 (en) * 2002-08-20 2004-02-26 Bordewick Steven S. Face mask support
US20090095298A1 (en) * 2003-02-21 2009-04-16 Resmed Limited Nasal assembly
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US20040221850A1 (en) * 2003-02-21 2004-11-11 Resmed Limited Nasal mask assembly
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US7874293B2 (en) 2003-02-21 2011-01-25 Resmed Limited Nasal assembly
US7318437B2 (en) * 2003-02-21 2008-01-15 Resmed Limited Nasal assembly
US7900635B2 (en) 2003-02-21 2011-03-08 Resmed Limited Nasal assembly
US20060137690A1 (en) * 2003-02-21 2006-06-29 Gunaratnam Michael K Nasal assembly
US7621274B2 (en) 2003-03-22 2009-11-24 Invacare Corporation Nasal mask
US20110030692A1 (en) * 2003-05-02 2011-02-10 Resmed Limited Mask system
US8505535B2 (en) 2003-05-02 2013-08-13 Resmed Limited Mask system
US9895503B2 (en) 2003-05-02 2018-02-20 Resmed Limited Mask system
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US20070246043A1 (en) * 2004-04-15 2007-10-25 Resmed Limited Positive-Air-Pressure Machine Conduit
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US10137270B2 (en) 2005-10-14 2018-11-27 Resmed Limited Cushion to frame assembly mechanism
US8944061B2 (en) 2005-10-14 2015-02-03 Resmed Limited Cushion to frame assembly mechanism
US9381316B2 (en) 2005-10-25 2016-07-05 Resmed Limited Interchangeable mask assembly
US10183138B2 (en) 2005-10-25 2019-01-22 Resmed Limited Interchangeable mask assembly
US9962510B2 (en) 2005-10-25 2018-05-08 Resmed Limited Respiratory mask assembly
US8297285B2 (en) 2006-07-28 2012-10-30 Resmed Limited Delivery of respiratory therapy
US8028698B2 (en) 2006-09-18 2011-10-04 Invacare Corporation Breathing mask
US20080066761A1 (en) * 2006-09-18 2008-03-20 Invacare Corporation Breathing mask
US8960196B2 (en) 2007-01-30 2015-02-24 Resmed Limited Mask system with interchangeable headgear connectors
US8517023B2 (en) 2007-01-30 2013-08-27 Resmed Limited Mask system with interchangeable headgear connectors
US9937315B2 (en) 2007-01-30 2018-04-10 Resmed Limited Mask with removable headgear connector
US9981102B2 (en) 2007-03-02 2018-05-29 Resmed Limited Respiratory mask
WO2008106716A1 (en) * 2007-03-02 2008-09-12 Resmed Ltd Respiratory mask
US10195384B2 (en) 2007-04-19 2019-02-05 Resmed Limited Cushion and cushion to frame assembly mechanism for patient interface
US8869797B2 (en) 2007-04-19 2014-10-28 Resmed Limited Cushion and cushion to frame assembly mechanism for patient interface
US8522784B2 (en) 2008-03-04 2013-09-03 Resmed Limited Mask system
US9770568B2 (en) 2008-03-04 2017-09-26 Resmed Limited Mask system with snap-fit shroud
US9757533B2 (en) 2008-03-04 2017-09-12 Resmed Limited Mask system with snap-fit shroud
US9962511B2 (en) 2008-03-04 2018-05-08 Resmed Limited Mask system with snap-fit shroud
US9950131B2 (en) 2008-03-04 2018-04-24 Resmed Limited Mask system with snap-fit shroud
US9027556B2 (en) 2008-03-04 2015-05-12 Resmed Limited Mask system
US8550084B2 (en) 2008-03-04 2013-10-08 Resmed Limited Mask system
US8528561B2 (en) 2008-03-04 2013-09-10 Resmed Limited Mask system
US9119931B2 (en) 2008-03-04 2015-09-01 Resmed Limited Mask system

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