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Número de publicaciónUS2248477 A
Tipo de publicaciónConcesión
Fecha de publicación8 Jul 1941
Fecha de presentación27 Feb 1940
Fecha de prioridad27 Feb 1940
Número de publicaciónUS 2248477 A, US 2248477A, US-A-2248477, US2248477 A, US2248477A
InventoresLombard Charles F
Cesionario originalLombard Charles F
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Method and apparatus for administering oxygen
US 2248477 A
Resumen  disponible en
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Reclamaciones  disponible en
Descripción  (El texto procesado por OCR puede contener errores)

July 8, 1941. c. F LOMBARD I 2,248,477

METHOD AND APPARATUS FOR ADMINISTERING OXYGEN Filed Feb. 27, 1940 Patented July 8, 1941 UNITED STATES PATENT} OFFICE METHOD Ann APPARATUS non anmmsraamo OXYGEN- Charles F. Lombard, Alhambra, Calif. Application February 2'1, 1940, Serial No. $1,028.

This invention relates to amethod and apparatus for conserving gas being administered to a patient, and while the, invention may be employed in administering anaesthetics in the form of a gas, it is intended to be particularly useful when employed as an oxygen mask for administering oxygen to a patient, thereby avoiding the necessity of employing a. relatively expensive oxygen tent.

In the usual hospital practice, when employing an oxygen mask the entire exhalation from the patient 'is permitted to escape'into the atmosphere, and of course when a patient is being administered this oxygen, a considerable quantity of oxygen is expelled from the patients body with the vitiated oxygen that has passed from the patients lungs.

The principal object of the present invention is to provide a method and apparatus, the practice of which will result in a considerable saving in the amount of oxygen gas consumed in administering the same to a patient. 1

A further object of the invention is to provide an apparatus of very simple construction, which can be applied over the patient's mouth and/or nose, and which will operate in such a way that when the patient exhales, the first portion of the gases exhaled will pass back toward the oxygen supply, while the remaining portion of the exhalation will be expelled or permitted to escape into the atmosphere. In this way the volume of oxygen that was filling the patient's trachea and bronchial tubes, and which is unvitiated, will be conserved and pass back into the oxygen supply, after which the vitiated portion of the exhaled gases will escape or pass out into the atmosphere.

Further objects of the invention will appear hereinafter.

The invention consists in the novel steps and novel elements of construction and combinations thereof, which cooperate to produce an eflicient method and apparatus for administering oxygen.

A preferred embodiment of the invention is described in the following specification, while broad scope of the invention is pointed out% the-appended claims.

The drawing is a vertical section through an inhalating apparatus embodying my invention,

' and with which I prefer to practice my method.

In practicing my invention, I confine an accumulated volume, or quantity of the gas that is being administered to the patient in the vicinity of-the patient's respiratory outlet, either his nose, mouth, or both; and at the same point I confine the first unvitiated portion ofthe gas exhaled by the patient from his trachea or bronchial tubes; V after which I permit the remainder or vitiated portion of the exhalation to escape.

My novel apparatus for practicing this method preferably comprises a body with an outer chamher into which the gas is admitted, and an inner chamber that is in gaseous communication with the outer chamber. This gaseous communication may be effected by means ofone or more perforations, but preferably by employing a porous wall between the inner chamber and the outer chamber. The inner chamber is of course locatedadiacent the patient's nose or mouth, or

both, and. the operation of the apparatus is such that as the first portion of the patient's exhalation passes into the inner chamber, a considerable portion of this exhaled gas which is unvitiv 'ated, will pass from the inner chamber to the; outer chamber, mixing with the gas'supply; and

at some point during the patient's exhalation,

the pressure in the outer chamber will rise con-- siderably, and this higher pressure will be communicated to the inner chamber, and the portion of the exhalation after this moment is reached, is permitted to escape preferably in the' atmosphere around the edge of the inhalator where the same is in contact with the patient's face. Referring more particularly to the parts, I indicates the body of the inhalator, which contains an outer chamber 2, which constitutes an inlet chamber into which the gas such as oxy en is admitted through a supply tube 3.

When the inhaling apparatus is in use, of course it is applied over the patient's respiratory outlet, or outlets, as indicated by the dotted lines that indicate the relation of the patient's head and face with respect to the inhaling apparatus.

' The inhaling apparatus is so. constructed that .when applied to the patient's face, it cooperates an inner with the patient's face to form chamber I. I

The inhaling apparatus is constructed so that the inner chamber 4 is in gaseous communication with the outer chamber 2'. This may be accomplished in any manner, for example, by providing a wall having one or more ducts through which the communication is established, but I prefer to employ for this purpose a wall I that is pervious to the gases. For this purpose I prefer to employ sponge rubber or similar material to form this wall, the said rubber being-- of a porous nature and capable of permitting gas to pass through the pores between the two chamhers. Furthermore this material (sponge rubber) is admirably adapted forv making contact with the patient's face, and for this reason the outer wall or sack 6 that forms the outer wall of the chamber 2. is preferably attached at its edge I to the outer face of the wall I, which wall operates as a mask applied over the nose and mouth of the patient.

"The inhaling apparatus is removably held in place by any suitable means such as a headgear or harness 8, that includes two forwardly exa small drain valve l2 that may be opened at will to drain oil moisture collecting at the lowest point of the chamber 2.

At the point of contact between the mask wall and the patients face, the mask wall 5 is preferably provided with a rounded lip l3 to insurethat it will be comfortable when worn by the patient; and while this lip should fit reasonably closely to the patients face, it is not necessary that it should form an absolutely gas-tight contact with'the same. If, however, the lip I3 is so constructed as to fit gas-tight throughout its entire length, then I prefer to provide one or more small grooves It in the face of the lip, for I a purpose that will appear hereinafter.

In the operation of this inhaling apparatus, of course when the gas such'as oxygen is admitted to the chamber 2, this gas immediately passes in to the inner chamber t where it is inhaled by the patient. When exhalation occurs,

' the immediate effect of the exhalation is to slightly raise the pressure in the inner chamber 4, which causes a flow of the oxygen within the same outwardly through the wall 5 into the chamber 2. The inlet 3 for the oxygen being relatively small, insures that arise in pressure in the chamber 2- will occur, and this rise in pressure in the outer chamber 2 is communicated back into the inner chamber 4. When this point in the act of exhalation occurs, most of the volume of the oxygen that occupied the patient's trachea and bronchial tubes, will have passed the wall 5, and the chamber 4 will commence to fill with vitiated oxygen carrying a large amount of carbon dioxide picked up from the patient's lungs, and as the exhalation continues, a large portion of this vitiated gas or oxygen from the patient's lungs, will escape at any points along the lip I3 where the mask does not fit tightly to the patient's face, or at the grooves I4 if it happens that the mask does fit gas-tight throughout the entire length of the lip. In considering the mode of operation described above, it should behnderstood that it is not intended to state that, a complete separation of the unvitiated exhalation from the vitiated portion of x the exhalation can be accomplished. However,

this is of relatively slight importance. No harm will be done if some of the carbon dioxide passes through the wall 5 into the inlet chamber 2, and no great harm is done either if some of the exhaled unvitiated oxygen escapes along the lip I3 or at the grooves M in the first portion or stage of the exhalation. The practice of the invention will evidently result in a considerable saving in the amount of oxygen that would be consumed in administering oxygen to a patient.

Many other embodiments of this invention may be resorted to without departing from the spirit of the invention.

What I claim is:

1. An inhaling apparatus to be applied to a 2,248,477 l 1 5i p I patient's respiratoryooutlet, comprising body with an outer chamber into which the gas is first admitted, and aninnenchamber in gaseous communication with zthefouter chamber, located 5 adjacent the patients respiratory outlet, and

into which the gas flows from the outer chambet, and operating so that the first portion of the patient's exhalation passes from the inner chamber to the outer chamber; said inhaler.ap-

paratus constructed so as to effect the escape of the vitiated latter portion of the exhalation.

2. An inhaler apparatus for administering gas to a patient, having an inlet chamber through which the gas it, first admitted to the inhaler apparatus and havingra masktwallktmbe applied to the respiratory outlet ointhelpatient' and cooperating therewith to 1 forms an sexhalatioif'lchambar, with means forlpermittingrscommunicatlon through the mask wall into? th'ninlet chamber, the parts of said inhaler-apparatus cooperating so that the first portion; ofnth'e 'gas exhaledlby the patient passes baclcthrough the"said' wallfinto the inlet chamber, the latter portion of theT-jexhaled gases, escaping. into tn'e atmospherew 3. An inhaler apparatus for administering gas to a patient, having an outer' 'walh'fand liavinga mask wall cooperating with th'e first-named wall to form an inlet chamber2 saijd rnask'walibonstructed to be applied bver therespiratory outlet of the patient and capablel of pennitting gases to pass through the same, the parts oi" said inhaler apparatus cooperating when applied to the patient to permit the-"firstportioii f-- gas to pass through tlie wall-o the gas inlet chamberandop'ra n to permit the escapeof thelat tei exhaled gases 'into'thc atmosphere adjacent the edge of said mask. 1

4. An inhaler apparatus for administering gas to a patient, havingarifouteri'wallfand havirig a mask connected adjacentlit sfedges withfthe outer to pass therethrog operating so the, exhaled by the'p wall into the gas inl t chambe portion of the sa'f between the surfa the edge of the mas 5. In an inhalat' 1 8 r and the latter "the atmosphere LI ui e t w ich. isa l k and tively laden witl ig carbon oxide rad r tag tientis lungs, operating; Ito jescape ,i'rorn ltl e e halation chamber intothe atmosphere] 1o V cma as nLoM Aapifi

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Patente citante Fecha de presentación Fecha de publicación Solicitante Título
US2617415 *30 Mar 195111 Nov 1952Jack RosenFace mask
US2634724 *22 Oct 194914 Abr 1953Burns Henry LDisposable breathing mask
US2652830 *14 Mar 195022 Sep 1953United Air Lines IncDevice for administering gases
US2998818 *1 May 19565 Sep 1961Chemetron CorpFace piece
US3505996 *31 Mar 196714 Abr 1970Abbott LabHigh pressure gas storage and discharge apparatus
US3505997 *31 Mar 196714 Abr 1970Abbott LabOxygen breathing apparatus
US4249527 *9 Feb 197910 Feb 1981Case Western Reserve UniversityContinuous positive airway pressure administrating apparatus
US4807617 *1 Feb 198828 Feb 1989Massachusetts Eye And Ear InfirmaryScavenging mask
US5400781 *20 Jul 199428 Mar 1995Davenport; Richard A.CO2 gas sampling mask having a bevelled sampling tube extending into the mask
US5474060 *23 Ago 199312 Dic 1995Evans; DavidFace mask with gas sampling port
US5553608 *20 Jul 199410 Sep 1996Tecnol Medical Products, Inc.Face mask with enhanced seal and method
US5694925 *12 Dic 19959 Dic 1997Tecnol Medical Products, Inc.Face mask with enhanced seal and method
US5699792 *9 Oct 199623 Dic 1997Tecnol Medical Products, Inc.Face mask with enhanced facial seal
US5724964 *6 Jul 199510 Mar 1998Tecnol Medical Products, Inc.Disposable face mask with enhanced fluid barrier
US5803077 *15 Sep 19958 Sep 1998Procare, Inc.Mask with elastic webbing
US5934275 *30 Abr 199610 Ago 1999Splash Shield, LpMask with elastic webbing
US6006748 *16 Oct 199728 Dic 1999Resmed LimitedVent valve apparatus
US6019101 *31 Oct 19961 Feb 2000Sleepnet CorporationNasal air mask
US6029660 *12 Dic 199729 Feb 2000Resmed LimitedSubstance delivery apparatus
US6044844 *2 Dic 19974 Abr 2000Resmed LimitedMask and harness assembly
US6112746 *31 Ene 19975 Sep 2000Resmed LimitedNasal mask and mask cushion therefor
US6119693 *16 Ene 199819 Sep 2000Resmed LimitedForehead support for facial mask
US6123071 *26 Sep 199626 Sep 2000Resmed LimitedFacial masks for assisted respiration or CPAP
US6123082 *3 Oct 199726 Sep 2000Resmed LimitedDevice for preventing or reducing the passage of air through the mouth
US635744116 Jul 199719 Mar 2002Resmed LimitedNasal mask and mask cushion therefor
US641892918 Sep 200016 Jul 2002Suzanne H. NorfleetInfant oxygen mask
US646393130 Jun 200015 Oct 2002Resmed LimitedForehead support for facial mask
US64942072 Dic 199717 Dic 2002Resmed LimitedHarness assembly for a nasal mask
US651352621 May 19994 Feb 2003Resmed LimitedFull-face mask and mask cushion therefor
US655755613 May 20026 May 2003Resmed LimitedForehead support for facial mask
US656119010 Feb 199813 May 2003Resmed LimitedMask and a vent assembly therefor
US65611911 Dic 199913 May 2003Resmed LimitedMask and a vent assembly therefor
US65816028 Feb 200224 Jun 2003Resmed LimitedNasal mask and mask cushion therefor
US6629532 *12 Jun 20027 Oct 2003George L. Campbell, Sr.Oxygen mask retention device and method for retaining an oxygen mask
US66317188 Jun 199914 Oct 2003Sleepnet CorporationAir mask with seal
US66343588 May 200021 Oct 2003Resmed LimitedNasal mask cushion assembly
US669170829 Ago 200217 Feb 2004Resmed LimitedForehead support for facial mask
US670192711 Jun 20029 Mar 2004Resmed LimitedFull-face mask and mask cushion therefor
US68602694 Oct 20021 Mar 2005Resmed LimitedForehead support for facial mask
US68716496 Dic 200129 Mar 2005Resmed LimitedNasal mask cushion assembly
US688969213 Feb 200310 May 2005Resmed LimitedVent valve assembly
US697392917 Dic 200213 Dic 2005Resmed LimitedForehead support for a facial mask
US699718815 Sep 200314 Feb 2006Resmed LimitedForehead support for facial mask
US700061414 Mar 200221 Feb 2006Map Medizin-Technologie GmbhBreathing mask arrangement and a forehead support device for same
US700769616 May 20027 Mar 2006Tiara Medical Systems, Inc.Mask cushion and method of using same
US703650830 Abr 20022 May 2006Resmed LimitedHarness assembly for a nasal mask
US705932531 Mar 200513 Jun 2006Resmed LimitedVent assembly
US706993312 Nov 20034 Jul 2006Resmed LimitedBreathing mask and mask cushion therefor
US710061016 Oct 20015 Sep 2006Map Medizintechnologie GmbhBreathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas
US717852711 Feb 200220 Feb 2007Resmed LimitedNasal mask and mask cushion therefor
US720733512 Feb 200324 Abr 2007Resmed LimitedMask and vent assembly therefor
US721048126 May 20001 May 2007Sleepnet CorporationNose mask
US72196698 Jun 199922 May 2007Sleepnet CorporationNose mask
US72344664 Nov 200326 Jun 2007Resmed LimitedForehead support for facial mask
US72436517 Sep 200417 Jul 2007Resmed LimitedCushion and mask therefor
US729054622 Mar 20036 Nov 2007Invacare CorporationNasal mask
US732032322 Oct 200222 Ene 2008Map Medizin-Technologie GmbhBreathing mask device and application device and frontal support device thereof
US74069655 May 20045 Ago 2008Resmed LimitedForehead support for facial mask
US74727042 Mar 20056 Ene 2009Resmed LimitedForehead support for facial mask
US75033279 Abr 200417 Mar 2009Resmed LimitedMask with integral cushion and forehead piece
US761091628 Ago 20063 Nov 2009Resmed LimitedForehead support for facial mask
US762127423 Jun 200324 Nov 2009Invacare CorporationNasal mask
US765426313 May 20052 Feb 2010Map Medizin-Technologie GmbhBreathing mask arrangement and a forehead support device for same
US776225917 Dic 200727 Jul 2010Resmed LimitedMask with integral cushion and forehead piece
US777520925 Jul 200617 Ago 2010Map Medizintechnologie GmbhBreathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas
US784535419 Nov 20027 Dic 2010Resmed LimitedMask and vent assembly therefor
US788283719 Ago 20058 Feb 2011Resmed LimitedForehead support for facial mask
US792648728 Abr 200619 Abr 2011Resmed LimitedRespiratory mask having gas washout vent and gas washout vent assembly for a respiratory mask
US79421495 Ene 200917 May 2011Resmed LimitedForehead support for a facial mask
US79421508 Abr 200517 May 2011Resmed LimitedNasal assembly
US795039213 Jul 200731 May 2011Resmed LimitedCushion and mask therefor
US796701425 Abr 200628 Jun 2011Map Medizin-Technologie GmbhApplication device for breathing mask arrangement
US799255928 Nov 20079 Ago 2011Map Medizin-Technologie GmbhBreathing mask arrangement as well as an application device and a forehead support device for same
US802869817 Sep 20074 Oct 2011Invacare CorporationBreathing mask
US805656112 May 200615 Nov 2011Resmed LimitedFull-face mask and mask cushion therefor
US812288627 Dic 200628 Feb 2012Resmed LimitedRespiratory mask assembly with vent
US8127765 *14 Abr 20086 Mar 2012Ric Investments, LlcPatient interface assembly and system using same
US818634823 Sep 200929 May 2012Resmed LimitedForehead support for facial mask
US821018030 Jun 20103 Jul 2012Resmed LimitedMask with integral cushion and forehead piece
US835329421 Mar 201115 Ene 2013Resmed LimitedRespiratory mask assembly
US83713019 Jul 201012 Feb 2013Resmed R&D Germany GmbhBreathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas
US840297227 Ago 200926 Mar 2013Resmed R&D Germany GmbhBreathing mask arrangement and a forehead support device for same
US847973820 May 20119 Jul 2013Resmed R&D Germany GmbhBreathing mask arrangement as well as an application device and a forehead support device for same
US850553523 Dic 200913 Ago 2013Resmed LimitedMask system
US851702329 Ene 200827 Ago 2013Resmed LimitedMask system with interchangeable headgear connectors
US852278316 May 20113 Sep 2013Resmed LimitedCushion and mask therefor
US852278423 Ene 20133 Sep 2013Resmed LimitedMask system
US85227855 Ago 20033 Sep 2013Resmed LimitedInextensible headgear and CPAP or ventilator mask assembly with the same
US852855815 Mar 201110 Sep 2013Resmed LimitedRespiratory mask having washout vent and gas washout vent assembly for a respiratory mask
US852856118 Ene 201310 Sep 2013Resmed LimitedMask system
US855008129 Nov 20128 Oct 2013Resmed LimitedCushion for patient interface
US855008229 Nov 20128 Oct 2013Resmed LimitedCushion for patient interface
US855008329 Nov 20128 Oct 2013Resmed LimitedCushion for patient interface
US855008427 Feb 20098 Oct 2013Resmed LimitedMask system
US855588529 Nov 201215 Oct 2013Resmed LimitedCushion for patient interface
US856740414 Nov 201229 Oct 2013Resmed LimitedCushion for patient interface
US857321314 Nov 20125 Nov 2013Resmed LimitedCushion for patient interface
US857321428 Nov 20125 Nov 2013Resmed LimitedCushion for patient interface
US857321529 Nov 20125 Nov 2013Resmed LimitedCushion for patient interface
US857893529 Nov 201212 Nov 2013Resmed LimitedCushion for patient interface
US861328014 Nov 201224 Dic 2013Resmed LimitedCushion for patient interface
US861328129 Nov 201224 Dic 2013Resmed LimitedCushion for patient interface
US861621129 Nov 201231 Dic 2013Resmed LimitedCushion for patient interface
US86360063 Ene 200728 Ene 2014Resmed LimitedMask
US864645029 Mar 201111 Feb 2014Resmed LimitedForehead support for a facial mask
US874625028 Ene 201310 Jun 2014Resmed R&D Germany GmbhBreathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas
US87571622 Nov 201024 Jun 2014Resmed LimitedNasal assembly
US879423919 Jun 20125 Ago 2014Resmed LimitedMask with integral cushion and forehead piece
US881374810 Nov 201126 Ago 2014Resmed LimitedFull-face mask and mask cushion therefor
US882691011 Feb 20139 Sep 2014Resmed LimitedMask and vent assembly therefor
US883337111 Nov 201016 Sep 2014Resmed LimitedMask and vent assembly therefor
US886979718 Abr 200828 Oct 2014Resmed LimitedCushion and cushion to frame assembly mechanism for patient interface
US887571017 May 20114 Nov 2014Resmed R&D Germany GmbhApplication device for a breathing mask arrangement
US894406115 Mar 20133 Feb 2015Resmed LimitedCushion to frame assembly mechanism
US896019629 May 201324 Feb 2015Resmed LimitedMask system with interchangeable headgear connectors
US899773917 Abr 20067 Abr 2015Resmed LimitedVent valve apparatus
US902755623 Ene 201312 May 2015Resmed LimitedMask system
US907285315 Nov 20107 Jul 2015Resmed LimitedForehead pad for respiratory mask
US911993131 Jul 20141 Sep 2015Resmed LimitedMask system
US914465621 Jun 201329 Sep 2015Resmed R&D Germany GmbhBreathing mask arrangement as well as an application device and a forehead support device for same
US922086129 Dic 201029 Dic 2015Resmed LimitedForehead support for facial mask
US92482511 Jul 20142 Feb 2016Resmed LimitedMask with integral cushion and forehead piece
US92595491 Mar 201316 Feb 2016Resmed R&D Germany GmbhBreathing mask arrangement and a forehead support device for same
US929580020 Dic 201329 Mar 2016Resmed LimitedCushion for patient interface
US93755457 Dic 201228 Jun 2016Resmed LimitedRespiratory mask assembly
US938131630 Ene 20095 Jul 2016Resmed LimitedInterchangeable mask assembly
US9386813 *7 Dic 201112 Jul 2016San-M Package Co., Ltd.Mask
US942133924 Ene 201423 Ago 2016Resmed LimitedPatient interface
US946329528 Ago 201311 Oct 2016Resmed LimitedMask and mask cushion therefor
US959235914 May 201214 Mar 2017Resmed LimitedForehead support for facial mask
US959747330 Ago 201321 Mar 2017Resmed LimitedInextensible headgear and CPAP or ventilator mask assembly with same
US966246728 Abr 201430 May 2017Resmed R&D Germany GmbhBreathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas
US975753312 Ago 201312 Sep 2017Resmed LimitedMask system with snap-fit shroud
US975753419 Ago 201512 Sep 2017Resmed R&D Germany GmbhBreathing mask arrangement as well as an application device and a forehead support device for same
US977056823 Feb 201726 Sep 2017Resmed LimitedMask system with snap-fit shroud
US977057126 Feb 201526 Sep 2017Resmed LimitedVent valve assembly
US980202125 Ago 201531 Oct 2017Fisher & Paykel Healthcare LimitedMouthpiece
US20030019495 *16 May 200230 Ene 2003Palkon David J.Mask cushion and method of using same
US20030034034 *4 Oct 200220 Feb 2003Resmed LimitedForehead support for facial mask
US20030221691 *16 Oct 20014 Dic 2003Achim BienerBreathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas
US20040045550 *14 Mar 200211 Mar 2004Bernd LangBreathing mask arrangement and a forehead support device for same
US20040060561 *15 Sep 20031 Abr 2004Resmed LimitedForehead support for facial mask
US20040094159 *12 Nov 200320 May 2004Resmed LimitedBreathing mask and mask cushion therefor
US20040182398 *23 Jun 200323 Sep 2004Tom SprinkleNasal mask
US20050005940 *9 Abr 200413 Ene 2005Resmed LimitedMask with integral cushion and forehead piece
US20050022818 *7 Sep 20043 Feb 2005Resmed LimitedCushion and mask therefor
US20050022820 *5 May 20043 Feb 2005Kwok Philip R.Forehead support for facial mask
US20050139219 *2 Mar 200530 Jun 2005Resmed LimitedForehead support for facial mask
US20050211252 *13 May 200529 Sep 2005Map Medizin-Technologie GmbhBreathing mask arrangement and a forehead support device for same
US20060011202 *19 Ago 200519 Ene 2006Resmed LimitedForehead support for facial mask
US20060185674 *17 Abr 200624 Ago 2006Resmed LimitedVent valve apparatus
US20070261697 *13 Jul 200715 Nov 2007Resmed LimitedCushion and mask therefor
US20080092899 *17 Dic 200724 Abr 2008Resmed LimitedMask with integral cushion and forehead piece
US20080196727 *14 Abr 200821 Ago 2008Ric Investments, Llc.Patient Interface Assembly And System Using Same
US20100012129 *23 Sep 200921 Ene 2010Resmed LimitedForehead support for facial mask
US20110094517 *29 Dic 201028 Abr 2011Resmed LimitedForehead support for facial mask
US20110174311 *29 Mar 201121 Jul 2011Resmed LimitedForehead support for a facial mask
US20120199142 *7 Dic 20119 Ago 2012San-M Package Co., Ltd.Mask
US20150335847 *20 May 201526 Nov 2015Atom Medical CorporationGas supply mask apparatus
USD42309625 Ago 199718 Abr 2000Resmed LimitedNasal mask cushion
USD42898725 Ago 19971 Ago 2000Resmed LimitedNasal mask shell
USD43565025 Ago 199726 Dic 2000Resmed LimitedCombined nasal mask shell and cushion
USD49852914 Ene 200316 Nov 2004Resmed LimitedPortion of a cushion for use with a mask assembly in the application of continuous positive airway pressure (CPAP)
USD78202811 Jul 201421 Mar 2017Resmed LimitedPad for forehead support
DE19782144B4 *2 Dic 19975 Jul 2007Resmed Ltd., North RydeMasken- und Gurtgarnitur
EP0692274A3 *8 Jul 199513 Mar 1996Weinmann G Geraete MedIndividual mask
WO1994002190A1 *22 Jul 19933 Feb 1994Johannes GeisenProcess and system of controllable breathing air supply or evacuation
WO1997040890A2 *30 Abr 19976 Nov 1997Procare, Inc.Mask with elastic webbing
WO1997040890A3 *30 Abr 199711 Dic 1997Procare IncMask with elastic webbing
Clasificaciones
Clasificación de EE.UU.128/205.25, 128/207.11, 128/205.29
Clasificación internacionalA61M16/06
Clasificación cooperativaA61M16/0683
Clasificación europeaA61M16/06S