EP1275415A1 - Beatmungsgerät und seine Benutzung in einer Schutzanlage gegen Hypoxie - Google Patents

Beatmungsgerät und seine Benutzung in einer Schutzanlage gegen Hypoxie Download PDF

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Publication number
EP1275415A1
EP1275415A1 EP02291601A EP02291601A EP1275415A1 EP 1275415 A1 EP1275415 A1 EP 1275415A1 EP 02291601 A EP02291601 A EP 02291601A EP 02291601 A EP02291601 A EP 02291601A EP 1275415 A1 EP1275415 A1 EP 1275415A1
Authority
EP
European Patent Office
Prior art keywords
generator
mask
pressure
valve
oxygen
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
EP02291601A
Other languages
English (en)
French (fr)
Other versions
EP1275415B1 (de
Inventor
Patrice Martinez
Eric Farin
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 EP1275415A1 publication Critical patent/EP1275415A1/de
Application granted granted Critical
Publication of EP1275415B1 publication Critical patent/EP1275415B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A62B7/00—Respiratory apparatus
    • A62B7/14—Respiratory apparatus for high-altitude aircraft

Definitions

  • the present invention relates to breathing apparatus intended for protect crew members, especially flight crew technical, of an aircraft against the risks associated with high depressurization altitude and / or the appearance of smoke.
  • Each pilot of a current passenger transport aircraft has a breathing apparatus comprising a mask fitted with a regulator connected to a source of respiratory gas.
  • Aviation regulations require that this mask can be put on and provide less oxygen to the wearer 5 seconds.
  • This result is generally achieved at present in using an inflatable and deflatable pneumatic harness mask, such as one of those described in documents FR 1 506 342 and 2 784 900 and EP -A-0 628,325 and US Patents 5,503,147, 5,590,102 and 5,623,923.
  • the source of pressurized gas must be able to continuously supply, so instantaneous oxygen or highly oxygen enriched air under a sufficient pressure to inflate the harness and supply the regulator mask. This source is usually an oxygen cylinder under pressure.
  • the oxygen reserve can be replaced by a on-board oxygen generator, such as a generator battery by selective absorption and restitution of oxygen, called OBOGS (on-board oxygen generator systems) which use air from the compressor of one or more motors.
  • OBOGS on-board oxygen generator systems
  • their outlet pressure depends on the speed of the supply motor and the degree of enrichment of the air supplied is also variable. Pressure initially available may be insufficient to allow inflation of the quick fitting harness. The initial degree of enrichment can further be insufficient.
  • Other types of on-board generators or even oxygen supplies have similar disadvantages.
  • the present invention aims in particular to provide a respiratory device, in particular of the type having an inflatable pneumatic harness mask, responding better than those previously known to the requirements of the practical, especially on large capacity transport devices; he aims particularly to ensure that breathing gas having a content of sufficient oxygen for inspiration and possibly having pressure sufficient to allow rapid installation will be available from first user breaths, before the plane reaches the altitude at which this availability is essential, or even before lift-off.
  • the invention notably proposes a respiratory device comprising, on a supply line for the mask regulator, a buffer capacity specific to the mask, of sufficient volume to ensure at least two successive inspirations types, equipped with a fitted intake a non-return valve and intended to be connected to an air generator enriched in oxygen. So the pressure that builds up in the capacity is the pressure maximum provided by the generator during the preceding period.
  • the intake line with a valve that does not allow initial filling of capacity only when the oxygen content is above a threshold determined, for example 94%. This valve can also be maintained closed when the intake pressure is insufficient.
  • Means will generally be provided for, once the first breaths and the generator in steady state, or in case capacity depletion while the generator is not yet filling fully the above conditions, allow the passage of gas from the generator in the mask regulator.
  • the invention makes it possible to use a common on-board generator for the crew and passengers and avoid carrying heavy oxygen cylinders and to check frequently, other than those required for requirements possible therapeutic.
  • the capacity can often be incorporated into the mask box, the opening triggers the oxygen supply; she is then directly connected to the regulator supply hose and the mask harness.
  • This adaptation simply involves a limited increase in space a box such as that described for example in document US-A-6,039 045.
  • the apparatus shown in FIG. 1 comprises a respiratory mask 10 to regulator 12 allowing dilution by ambient air, provided with a harness tire 14 which may in particular be of any of the types described in the patent applications already mentioned.
  • the mask and the harness are stored in a box 16 provided a door with two flaps 18 and 20.
  • a valve 22 carried by the housing of the box is interposed between a hose 26 connected to the mask regulator and a supply line 24.
  • the valve 22 is placed so that it sets in communication the hose and the pipe 24 when the user of the mask 10 pulls it out of the box and the flap 18 opens.
  • the box also carries a switch allowing to choose between a regulator operation with dilution (protection against hypoxia only) and without dilution (smoke protection).
  • Line 24 is intended to receive air very enriched in oxygen coming from a generator 30, generally consisting of a battery OBOGS with offset absorption and restitution cycles.
  • a generator 30 generally consisting of a battery OBOGS with offset absorption and restitution cycles.
  • Two OBOGS are shown in Figure 1.
  • the same generator supplies a large number of masks. It can for example be molecular sieve. It exists in the trade in such generators, using for example the arrangements described in US Patent 4,561,865 and the prior art cited therein.
  • a line supply ensuring the connection between the box and a collector 32 outlet of the generator 30 successively comprises, from downstream to upstream, a capacity 34, a non-return valve 36 and a solenoid valve 38.
  • the non-return valve guarantees the maintenance of a volume of air very enriched in oxygen and under pressure sufficient to inflate the harness even during periods when the generator 30 supplies air at a lower pressure than that prevailing in the capacity 34.
  • the three-way solenoid valve 38 is associated with a control which allows the supply of the capacity only when the gas from generator 30 has an oxygen content greater than one threshold, for example 94 ⁇ 2% as long as the mask is stored.
  • a gas analyzer 42 is placed on the supply line of the capacity 34 and provides a signal to module 40.
  • This module 40 can also include a pressure tap 44 and be designed not to communication the collector 32 and the capacity 34 only when the pressure supplied by the generator exceeds a determined value, greater than the value required to fully inflate the harness 14.
  • the solenoid valve 38 is controlled to connect the manifold 32 and the non-return valve 36 also as long as the oxygen content of the breathing gas exceeds the threshold.
  • the solenoid valve 38 can be omitted.
  • the module 40 is provided for controlling the solenoid valve and connect the manifold 32 and the non-return valve 36 when it receives a signal to open the flap 18 of the box: thus, the mask is always powered when worn.
  • the installation implementation process can for example be the following when using OBOGS generators.
  • At least one generators 30 is put into service to selectively withdraw from oxygen.
  • the reactors are then at full power, the air passing through the generator molecular sieve is at high pressure.
  • the air supply is transferred to another OBOGS.
  • a set of valves provided on the first OBOGS is ordered to put it in connection with line 32 and the OBOGS is heated to restore oxygen.
  • the pressure being high and the gas being of high oxygen content, the buffer capacities 34 are filled with sufficient pressure to inflate harnesses.
  • Means may be provided to purge the capacity air buffer it can contain before filling with enriched air under pressure.
  • One or more common tanks 46 can also be filled at this stage.
  • At least one of the generators is ordered according to an absorption-restitution cycle before takeoff so that pilots have gas rich in oxygen and under pressure to put on the masks, in case of smoke for example.
  • the pilots will be able to put on the mask respiratory in seconds regardless of altitude and have immediately enriched breathing gas.
  • the tank or tanks passengers will also have access to oxygen with a delay which can be a little longer.
  • the generators are initially saturated with oxygen and under pressure, they will maintain high pressure supply for the time necessary to descend to the end of cruise altitude, between 5,000 and 8,000 meters, at which a pressure which will be lower (because the engine speed is reduced) is sufficient for respiratory needs.

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
EP02291601A 2001-07-11 2002-06-27 Beatmungsgerät und seine Benutzung in einer Schutzanlage gegen Hypoxie Expired - Lifetime EP1275415B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0109216A FR2827178B1 (fr) 2001-07-11 2001-07-11 Appareil respiratoire et installation de protection contre l'hypoxie en comportant application
FR0109216 2001-07-11

Publications (2)

Publication Number Publication Date
EP1275415A1 true EP1275415A1 (de) 2003-01-15
EP1275415B1 EP1275415B1 (de) 2007-04-11

Family

ID=8865372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02291601A Expired - Lifetime EP1275415B1 (de) 2001-07-11 2002-06-27 Beatmungsgerät und seine Benutzung in einer Schutzanlage gegen Hypoxie

Country Status (6)

Country Link
US (1) US6923183B2 (de)
EP (1) EP1275415B1 (de)
CA (1) CA2393078C (de)
DE (1) DE60219392T2 (de)
ES (1) ES2284796T3 (de)
FR (1) FR2827178B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007121771A1 (en) * 2006-04-20 2007-11-01 Intertechnique Breathing apparatus and installation providing protection against hypoxia
FR3067612A1 (fr) * 2017-06-16 2018-12-21 Zodiac Aerotechnics Equipement respiratoire pour aeronef avec masque et harnais gonflable et son espace de rangement.

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0204886D0 (en) * 2002-03-01 2002-04-17 Honeywell Normalair Garrett Breathing gas supply system
FR2848864B1 (fr) * 2002-12-24 2005-03-04 Intertechnique Sa Ensemble d'alimentation en gaz respiratoire pour personnel navigant d'aeronef et boite de rangement pour masque respiratoire de secours
US8490129B2 (en) * 2003-01-31 2013-07-16 Qwest Communications International Inc. Methods, systems and apparatus for selectively distributing urgent public information
FR2863585B1 (fr) * 2003-12-15 2006-02-03 Air Liquide Aeronef de transport
DE102004009346B4 (de) * 2004-02-26 2008-07-24 Airbus Deutschland Gmbh Klappenanordnung für O2 Maskencontainer
DE102004063698B4 (de) * 2004-12-28 2010-02-04 Dae Systems Gmbh Notsauerstoffsystem für Flugzeugpassagiere
CN100480136C (zh) * 2005-01-13 2009-04-22 阿沃克斯系统股份有限公司 展开氧气面罩的装置
US7283291B2 (en) * 2005-04-08 2007-10-16 The Boeing Company High speed beam steering/field of view adjustment
EP1945310A1 (de) * 2005-11-09 2008-07-23 Intertechnique Sauerstoffzufuhrkreis für ein flugzeugbesatzungsmitglied
CA2660065C (en) * 2006-08-10 2014-02-18 Intertechnique A storage box for a respiratory mask to be worn by crewmembers of an aircraft
CA2660416C (en) * 2006-08-10 2014-09-16 Intertechnique Breathing mask with an autonomous inflatable harness.
US7803218B2 (en) * 2007-02-26 2010-09-28 Honeywell International Inc. Drain valve assembly
CA2693776C (en) * 2007-07-10 2014-12-30 Intertechnique Stowage box for breathing mask
EP2168623B1 (de) * 2008-09-26 2011-09-21 General Electric Company Anordnung zur Detektion eines Lecks in einem Anästhesiesystem
US8294767B2 (en) 2009-01-30 2012-10-23 Microsoft Corporation Body scan
EP2525874B1 (de) 2010-01-22 2014-03-12 Zodiac Aerotechnics Atemhilfeanordnung für ein flugzeug
CA2819945A1 (en) * 2012-06-28 2013-12-28 Intertechnique Aircraft cabin with zonal obogs oxygen supply
GB2538509A (en) * 2015-05-18 2016-11-23 C2M Design Ocd Ltd An oxygen system for parachuting
US10595758B2 (en) 2016-05-12 2020-03-24 Southern Aeromedical Institute, Inc. Method and apparatus for determining onset of hypoxia
US11617847B2 (en) 2017-01-11 2023-04-04 Model Software Corporation Methods for minimizing delayed effects of exposure to reduced oxygen partial pressure via administration of supplemental oxygen
US10532175B1 (en) 2019-05-23 2020-01-14 Model Software Corporation Methods for minimizing delayed effects of exposure to reduced oxygen partial pressure via administration of supplemental oxygen
CN109091771A (zh) * 2018-08-23 2018-12-28 液化空气（中国）研发有限公司 一种供气抗雾霾口罩

Citations (9)

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GB836168A (en) * 1957-10-17 1960-06-01 Normalair Ltd Improvements in and relating to gas dispensing apparatus
GB851846A (en) * 1958-07-16 1960-10-19 Air Reduction Aviation quick release valve
FR1506342A (fr) 1966-06-30 1967-12-22 Intertechnique Sa Harnais automatique de tête pour la mise en place rapide, le port et l'enlèvement rapide de dispositifs divers
US5165625A (en) * 1990-11-16 1992-11-24 Intertechnique Breathable gas supply installation for aircraft including test means
EP0628325A1 (de) 1993-06-09 1994-12-14 Intertechnique Atemschutzausrüstung
US5590102A (en) 1995-01-12 1996-12-31 Discovision Associates Recording informatioin on an optical disc without using pre-manufactured tracks
US5623923A (en) 1993-06-09 1997-04-29 Intertechnique Respiratory equipment with comfort adjustment
US6032668A (en) * 1998-05-04 2000-03-07 Chung; Chao Yang Fire emergency life saving arrangement
FR2784900A1 (fr) 1998-10-21 2000-04-28 Intertechnique Sa Equipement de protection respiratoire a mise en place rapide

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US4561865A (en) 1983-11-01 1985-12-31 Greene & Kellogg, Inc. Single bed pressure swing adsorption gas separation system
US4870960A (en) * 1985-10-07 1989-10-03 Litton Systems, Inc. Backup breathing gas supply for an oxygen concentrator system
US6039045A (en) * 1987-04-22 2000-03-21 Intertechnique Head harness for respiratory mask
GB8729501D0 (en) * 1987-12-18 1988-02-03 Normalair Garrett Ltd Aircraft aircrew life support systems
GB9003033D0 (en) * 1990-02-10 1990-04-11 Normalair Garrett Ltd Oxygen-rich gas breathing systems
US5809999A (en) * 1995-08-30 1998-09-22 Daimler-Benz Aerospace Airbus Gmbh Method and apparatus for supplying breathable gas in emergency oxygen systems, especially in an aircraft
FR2778575B1 (fr) * 1998-05-12 2000-07-28 Intertechnique Sa Equipement de protection respiratoire a mise en place rapide
US6371110B1 (en) * 1999-03-25 2002-04-16 Enviromental Tectonics Corporation Automatic release apparatus and methods for respirator devices
US6526967B2 (en) * 2001-06-11 2003-03-04 Be Intellectual Property, Inc. Crew oxygen mask stowage assembly including selective depressurization valve

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB836168A (en) * 1957-10-17 1960-06-01 Normalair Ltd Improvements in and relating to gas dispensing apparatus
GB851846A (en) * 1958-07-16 1960-10-19 Air Reduction Aviation quick release valve
FR1506342A (fr) 1966-06-30 1967-12-22 Intertechnique Sa Harnais automatique de tête pour la mise en place rapide, le port et l'enlèvement rapide de dispositifs divers
US5165625A (en) * 1990-11-16 1992-11-24 Intertechnique Breathable gas supply installation for aircraft including test means
EP0628325A1 (de) 1993-06-09 1994-12-14 Intertechnique Atemschutzausrüstung
US5503147A (en) 1993-06-09 1996-04-02 Intertechnique Respiratory equipment with comfort adjustment
US5623923A (en) 1993-06-09 1997-04-29 Intertechnique Respiratory equipment with comfort adjustment
US5590102A (en) 1995-01-12 1996-12-31 Discovision Associates Recording informatioin on an optical disc without using pre-manufactured tracks
US6032668A (en) * 1998-05-04 2000-03-07 Chung; Chao Yang Fire emergency life saving arrangement
FR2784900A1 (fr) 1998-10-21 2000-04-28 Intertechnique Sa Equipement de protection respiratoire a mise en place rapide

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007121771A1 (en) * 2006-04-20 2007-11-01 Intertechnique Breathing apparatus and installation providing protection against hypoxia
FR3067612A1 (fr) * 2017-06-16 2018-12-21 Zodiac Aerotechnics Equipement respiratoire pour aeronef avec masque et harnais gonflable et son espace de rangement.
EP3417913A1 (de) * 2017-06-16 2018-12-26 Zodiac Aerotechnics Atemgerät für luftfahrzeug mit maske und aufblasbarer bänderung, und sein aufbewahrungsraum

Also Published As

Publication number Publication date
CA2393078C (fr) 2007-04-24
US20030010341A1 (en) 2003-01-16
DE60219392T2 (de) 2007-12-13
FR2827178A1 (fr) 2003-01-17
CA2393078A1 (fr) 2003-01-11
ES2284796T3 (es) 2007-11-16
FR2827178B1 (fr) 2003-12-05
US6923183B2 (en) 2005-08-02
DE60219392D1 (de) 2007-05-24
EP1275415B1 (de) 2007-04-11

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