EP1391222A1 - Vorrichtung für die Zufuhr von Atemgas - Google Patents

Vorrichtung für die Zufuhr von Atemgas Download PDF

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Publication number
EP1391222A1
EP1391222A1 EP03291479A EP03291479A EP1391222A1 EP 1391222 A1 EP1391222 A1 EP 1391222A1 EP 03291479 A EP03291479 A EP 03291479A EP 03291479 A EP03291479 A EP 03291479A EP 1391222 A1 EP1391222 A1 EP 1391222A1
Authority
EP
European Patent Office
Prior art keywords
oxygen
facial
respirator
subject
mask
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.)
Granted
Application number
EP03291479A
Other languages
English (en)
French (fr)
Other versions
EP1391222B1 (de
EP1391222B8 (de
Inventor
Michel Bardel
Nicolas Bloch
Patrice Martinez
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.)
Safran Aerosystems SAS
Original Assignee
Intertechnique SA
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 Intertechnique SA filed Critical Intertechnique SA
Publication of EP1391222A1 publication Critical patent/EP1391222A1/de
Publication of EP1391222B1 publication Critical patent/EP1391222B1/de
Application granted granted Critical
Publication of EP1391222B8 publication Critical patent/EP1391222B8/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing 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
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/084—Means for fastening gas-masks to heads or helmets
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing 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
    • A62B18/02—Masks
    • A62B18/025—Halfmasks
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing 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
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/082—Assembling eyepieces, lenses or vision-correction means in or on gas-masks

Definitions

  • the present invention relates to devices individual respiratory gas supply.
  • the invention relates to a individual respiratory gas supply device comprising a breathing mask for feeding a subject in breathing gas, especially during a high flight altitude, this mask itself comprising an oro-nasal face cover suitable for covering the subject's mouth and nose, ensuring a substantially sealed connection with the subject's face, this face cover being connected to a oxygen flow regulator, supplying the face cover with breathing gas from an oxygen dispenser.
  • oxygen will be used to denote either pure oxygen from a storage tank, i.e. air very enriched in oxygen.
  • the invention finds a particularly application important, although not exclusive, in the protection of pilots of civil aircraft likely to fly at high altitudes.
  • International regulations require that at least one of the pilots is always wearing a breathing gas supply device above the flight level 410. Permanent wearing of an oro-nasal mask applied against the face by the retaining harness is bothersome and may become painful.
  • EP-A-0691871 describes an example of such device used in particular by the crew of transport.
  • the device individual breathing gas supply must allow inhalation of pure oxygen (or equivalent gas) or a mixture enriched in oxygen.
  • These first two functions are protective functions which correspond to a life-threatening emergency and both of which require a high degree of reliability in the quality of the gas delivered to the subject. Consequently, the respiratory mask must be strictly waterproof.
  • the device individual breathing gas supply must allow to deliver to the pilot an over-oxygenation preventive in normal flight conditions, in order to avoid loss of consciousness a few seconds after decompression, even after applying a mask oxygen-supplied respiratory system.
  • This third function is a preventive function, above 10,668 meters (35,000 feet), which corresponds to normal conditions of flight and pressurization of the aircraft. It requires a port permanent mask by flight crew. But he is a preventive measure particularly uncomfortable for crews, especially when the respiratory mask is an optical screen mask from "full-face" protection which restricts the field of vision.
  • the object of the present invention is in particular to overcome this drawback.
  • the invention aims in particular to provide protection required for high altitude flights by reducing the duration of wearing an oro-nasal mask, possibly supplemented by an eye protection visor, periods when this port is made essential for the protection against hypoxia and / or smoke.
  • the first two functions mentioned above correspond to functions protective. According to the invention, they are provided by the mask that can be hardened to meet criteria severe protection against hypoxia, especially in terms of sealing. This makes it uncomfortable, but these functions should only be performed in very rare cases emergency situations. It is accepted that the comfort of the mask is not then an essential criterion.
  • the facial respirator This can be worn in normal flight and fulfills the third function so comfortable.
  • the third function which corresponds to a preventive measure, does not necessarily require a large precision in the administration, to the subject who wears it, of oxygen-enriched gas mixture.
  • the only constraint being that the inhaled gas mixture must contain at least a certain proportion of oxygen.
  • the precision of the mixture therefore the tightness of this equipment is not critical.
  • the facial respirator meets the requirement of comfort. In the event of decompression or the presence of gas toxic in the cabin, the subject wearing the facial respirator replace this preventive equipment with a mask respiratory or superimposes this mask.
  • the individual gas supply device 1 respiratory device includes a facial respirator 2, a mask respiratory 3, an oxygen distributor 4 and means switching the oxygen distribution 5.
  • the oxygen distributor 4 consists of a reserve of oxygen and / or of an oxygen generating system, for example of type OBOGS.
  • the facial respirator 2 consists for example of a cannula nasal 6.
  • This cannula has a pair of branches 7, 8. These branches 7, 8 are adapted to be retained each respectively on an ear of a subject. These branches are interconnected, on the one hand at the level of a Y-junction 9 leading to a supply pipe 10 common to the two branches 7, 8, and on the other hand at the level an inhaler sleeve 11.
  • the common supply hose 10 is connected to the oxygen distributor 4 via the means of switching the oxygen distribution 5.
  • the sleeve inhaler leads to two outlet ducts 12 intended to be each placed in one nostril of the subject.
  • the Y-junction 9 takes place behind his head, appreciably between his ears, the inhaler sleeve 11 takes place under his nose and each outlet duct 12 is placed in one of its nostrils.
  • the inhalation sleeve 11 is replaced by an oro-nasal shell 13 flexible.
  • This oro-nasal shell 13 does not cover not tightly the mouth and nose of the user, to allow entry for air which will be mixed with the oxygen brought under this oro-nasal shell 13.
  • the oro-nasal shell 13 is only a cover under which is disposed a cannula similar to that described above.
  • This oro-nasal shell 13 can be adapted to allow correct and sufficient phonation for the effective use of a microphone such as those conventionally worn by the crew of aircraft.
  • respirator facial 2 can be considered. It can in particular be attached some importance to its appearance aesthetic. Indeed, there may be an interest in having a pilot wearing facial respirator 2 of device 1 according to the invention does not appear as a patient with a respiratory medical device.
  • the cannula 6, like the oro-nasal shell 13, of the 1 individual breathing gas supply device according to the invention advantageously allow the subject who allows them to communicate audibly without resorting to a microphone.
  • the cannula 6 like the oro-nasal shell 13 of the 1 individual breathing gas supply device according to the invention are inexpensive and can therefore be, for hygienic reasons, single use only.
  • the facial respirator 2 is advantageously stored under sealed packaging and has a tip directly pluggable at the oxygen supply.
  • the respiratory mask 3 is for example a mask says "full-face”. Such a respiratory mask is for example described in document EP-A-0691871.
  • this mask 3 for eye protection includes an oro-nasal face cover 14, a screen 15, a regulator 16 on demand and a harness 17 for rapid installation.
  • the regulator 16 and the harnesses 17 are of known general constitution.
  • Covers oro-nasal side 14 is suitable for covering the mouth and nose of the subject wearing it, ensuring so substantially waterproof the junction with the face of this topic.
  • it includes a seal sealing 18 which may be constituted by an internal fold from the edge.
  • the screen has a transparent window with optical quality, provided with a flexible frame whose edges are trapped in a seal 19.
  • the respiratory mask 3 is connected to the dispenser oxygen 4 via a mask box 20 and the means of switching the oxygen distribution 5.
  • the seal 19 of the screen 15 and that 18 of the face cover 14 oro-nasal are of the type of those generally designed for respiratory masks 3. 7.8 branches are flexible enough to allow effective use of a standard 3 respiratory mask, without impair its sealing.
  • the facial respirator is suitable so that respirator 3 can be used without remove the facial respirator 2, while keeping substantially all sealing properties of the mask respiratory 3.
  • Switching means of distribution of oxygen 5 are installed in the mask box 20.
  • the user takes the respiratory mask 3 located in the mask box 20.
  • a signal is sent to the distribution switching means oxygen 5.
  • Switching means of distribution of oxygen 5 then cut off the oxygen supply to the cannula 6 and directly supply oxygen to the mask respiratory 3.
  • the means of switching the oxygen distribution 5 trigger a regulation of the oxygen supply adapted to the situation.
  • oxygen is distributed in a simplified mode.
  • the deployment of the mask respiratory 3 corresponding to a real emergency causes the transition to efficient oxygen regulation, of the type classic.
  • This switching can be synchronous with that other easements such as the switching of a microphone.
  • the supply of the cannula 6 is not cut by the switching means of the oxygen distribution 5 only when the breathing mask 3 is in place and operational.
  • control of distribution switching means oxygen 5 is performed manually by the subject himself, or automatically after a delay of a few seconds or even by a physical interaction of the facial respirator 2 with respiratory mask 3.
  • the facial respirator 2 can also be removed before that the respiratory mask 3 is not in place.

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
EP03291479A 2002-08-23 2003-06-18 Vorrichtung für die Zufuhr von Atemgas Expired - Fee Related EP1391222B8 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0210555A FR2843699B1 (fr) 2002-08-23 2002-08-23 Dispositif individuel d'alimentation en gaz respiratoire
FR0210555 2002-08-23

Publications (3)

Publication Number Publication Date
EP1391222A1 true EP1391222A1 (de) 2004-02-25
EP1391222B1 EP1391222B1 (de) 2006-10-11
EP1391222B8 EP1391222B8 (de) 2007-01-17

Family

ID=30776060

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03291479A Expired - Fee Related EP1391222B8 (de) 2002-08-23 2003-06-18 Vorrichtung für die Zufuhr von Atemgas

Country Status (6)

Country Link
US (1) US6966317B2 (de)
EP (1) EP1391222B8 (de)
CA (1) CA2434508C (de)
DE (1) DE60308966T2 (de)
ES (1) ES2274181T3 (de)
FR (1) FR2843699B1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070272244A1 (en) * 2006-04-25 2007-11-29 Witmer Warner H Fluidic barrier
US9849313B2 (en) * 2006-04-26 2017-12-26 Zodiac Aerotechnics System to deliver oxygen in an aircraft
WO2013056135A1 (en) * 2011-10-14 2013-04-18 Medical University Of South Carolina Ventilation devices and methods of use
US10010956B2 (en) * 2014-01-07 2018-07-03 Paul A. SOLLIDAY Firefighter's appliance
CA2980521A1 (en) 2015-03-31 2016-10-06 Fisher & Paykel Healthcare Limited A user interface and system for supplying gases to an airway
SG11201901094YA (en) 2016-08-11 2019-03-28 Fisher & Paykel Healthcare Ltd A collapsible conduit, patient interface and headgear connector
CN115803075A (zh) * 2020-05-07 2023-03-14 南医有限公司 辅助通气接口的改进

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4915105A (en) * 1988-10-28 1990-04-10 Lee Tien Chu Miniature respiratory apparatus
EP0691871A1 (de) 1994-02-02 1996-01-17 Intertechnique Kopfschutz mit atmungsmaske und augenschutzblende
US5704073A (en) * 1995-08-01 1998-01-06 Figgie International Inc. Quick donning goggles for use with breathing mask
WO2001068187A1 (fr) * 2000-03-10 2001-09-20 Intertechnique Equipement de protection de tete a mise en place rapide

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2185997A (en) * 1937-11-22 1940-01-09 Ohio Chemical And Mfg Company Means for supplying to individual persons an oxygenated gas mixture
US2383649A (en) * 1941-08-23 1945-08-28 Air Reduction Breathing mask for parachute escape devices
IT1174253B (it) * 1977-12-09 1987-07-01 Ernsting John Respiratore
DE3015760C2 (de) * 1980-04-24 1982-03-25 Drägerwerk AG, 2400 Lübeck Lungengesteuertes Druckgas-Atemschutzgerät mit Überdruck in der Atemschutzmaske
US4392490A (en) * 1981-02-23 1983-07-12 Mattingly Glen R Multiple outlet connecting means for self-contained positive pressure or demand regulated breathing apparatus
FI81500C (fi) * 1985-05-23 1990-11-12 Etelae Haemeen Keuhkovammayhdi Andningsbehandlingsapparat.
GB2266669B (en) * 1992-05-05 1996-03-27 Joseph Anthony Griffiths Breathing equipment for aircrew
US5348000A (en) * 1993-07-19 1994-09-20 Teves Leonides Y Apparatus and method for dispensing oxygen and anesthesia via interchangeable facemask and nasal catheter
US5662101A (en) * 1995-12-07 1997-09-02 Respironics, Inc. Respiratory facial mask
US6012455A (en) * 1996-11-14 2000-01-11 Goldstein; Joseph Nasal air delivery apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4915105A (en) * 1988-10-28 1990-04-10 Lee Tien Chu Miniature respiratory apparatus
EP0691871A1 (de) 1994-02-02 1996-01-17 Intertechnique Kopfschutz mit atmungsmaske und augenschutzblende
US5704073A (en) * 1995-08-01 1998-01-06 Figgie International Inc. Quick donning goggles for use with breathing mask
WO2001068187A1 (fr) * 2000-03-10 2001-09-20 Intertechnique Equipement de protection de tete a mise en place rapide

Also Published As

Publication number Publication date
FR2843699A1 (fr) 2004-02-27
EP1391222B1 (de) 2006-10-11
DE60308966D1 (de) 2006-11-23
EP1391222B8 (de) 2007-01-17
DE60308966T2 (de) 2007-08-30
FR2843699B1 (fr) 2004-10-29
US6966317B2 (en) 2005-11-22
CA2434508C (fr) 2007-04-24
CA2434508A1 (fr) 2004-02-23
ES2274181T3 (es) 2007-05-16
US20040099265A1 (en) 2004-05-27

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