EP0956100B1 - Atemausrüstung - Google Patents

Atemausrüstung Download PDF

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Publication number
EP0956100B1
EP0956100B1 EP96923136A EP96923136A EP0956100B1 EP 0956100 B1 EP0956100 B1 EP 0956100B1 EP 96923136 A EP96923136 A EP 96923136A EP 96923136 A EP96923136 A EP 96923136A EP 0956100 B1 EP0956100 B1 EP 0956100B1
Authority
EP
European Patent Office
Prior art keywords
breathing
hood
mask
valve
equipment according
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.)
Expired - Lifetime
Application number
EP96923136A
Other languages
English (en)
French (fr)
Other versions
EP0956100A1 (de
Inventor
Pierre Bühlmann
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.)
Interspiro AB
Original Assignee
Interspiro AB
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 Interspiro AB filed Critical Interspiro AB
Publication of EP0956100A1 publication Critical patent/EP0956100A1/de
Application granted granted Critical
Publication of EP0956100B1 publication Critical patent/EP0956100B1/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
    • A62B7/12—Respiratory apparatus with fresh-air hose

Definitions

  • a common feature of these devices is that breathing gas is supplied to the space delimited by the mask or hood. If a fault should occur so that the supply of breathing gas ceases or becomes insufficient, for instance as a result of a mechanical fault in the equipment or because the supply of breathing gas has been exhausted, no fresh gas will be supplied to the wearer of the equipment. As a result, the carbon dioxide content of the available breathing air will build-up while the oxygen content diminishes at the same time, which can quickly lead to suffocation.
  • Fig. 1 illustrates a so-called escape hood 1 which is connected to a breathing gas container (not shown) by means of a conduit 2.
  • a hood of this kind can be used temporarily, for instance, to protect against smoke and gases in an emergency, for instance in the case of fire, gas leakages from gas pipes, or in toxic gas environments created by chemicals.
  • valve plate 8 If the pressure in the conduit 2 falls beneath a predetermined value, the valve plate 8 will be moved away from the edges of the opening 6 in response to the force exerted by a pressure spring 11 mounted around the opening. This movement of the plate 8 is enabled by a flexible diaphragm 12 of the so-called roll diaphragm type fitted to the housing 10.

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)

Claims (8)

  1. Atemgerät mit einer Atemmaske, einer Atemhaube (1) oder ähnlichem und einer Leitung (2) zum Zuführen von Atemgas zu der Maske oder Haube,
    gekennzeichnet durch
    ein Ventilmittel (4), welches normalerweise beim Gebrauch geschlossen ist und welches in geöffnetem Zustand den Innenraum der Maske oder Haube (1) mit der umgebenden Atmosphäre verbindet, um zu ermöglichen, dass die Atmosphäre eingeatmet wird;
    und durch Mittel (8, 11) zum Ermitteln, wenn die Zufuhr des Atemgases zu der Maske oder Haube (1) unter einen vorgegebenen Wert gefallen ist, und zum Öffnen des Ventilmittels in Übereinstimmung hiermit.
  2. Atemgerät nach Anspruch 1,
    dadurch gekennzeichnet, dass das Ventilmittel (4) druckgesteuert ist und so aufgebaut ist, dass es öffnet, wenn der Druck in der Atemgasleitung (2) unter einen vorgegebenen Wert fällt.
  3. Atemgerät nach Anspruch 2,
    dadurch gekennzeichnet, dass das Ventilmittel (4) einen federbelasteten Ventilkörper (8) beinhaltet, der in eine abdichtende Anlage mit einem Ventilsitz gedrückt wird, wenn der Druck in der Atemgasleitung (2) den genannten Wert übersteigt, aber der von dem Ventilsitz durch die Kraft der genannten Feder weg bewegt wird, wenn der Druck unter den genannten Wert fällt.
  4. Atemgerät nach Anspruch 3,
    dadurch gekennzeichnet, dass der Ventilkörper die Form einer federbelasteten Ventilplatte (8) besitzt, die durch den Druck des Atemgases betätigt wird.
  5. Atemgerät nach Anspruch 4,
    dadurch gekennzeichnet, dass die Ventilplatte (8) in einem Gehäuse (10) angeordnet ist, das dazu vorgesehen ist, über eine Öffnung (6) in der Maske oder Haube (1) angebracht zu werden; dass das Gehäuse eine Kammer (9) aufweist, die mit der Atemgasleitung (2) in Verbindung steht und deren eine Wand vollständig oder teilweise durch die genannte Platte (8) gebildet wird; dass die Platte dazu dient, die Öffnung (6) zu verschließen, wenn der in der Kammer (9) vorherrschende Druck hierzu ausreichend ist; und dass Strömungswege (13) vorgesehen sind zum Verbinden des Inneren der Maske oder Haube mit der umgebenden Atmosphäre, wenn die Platte von der Öffnung weg bewegt ist.
  6. Atemgerät nach Anspruch 5,
    dadurch gekennzeichnet, dass der Atemgasstrom dazu veranlasst wird, durch die Kammer (9) zu strömen, bevor er zu der Maske oder Haube (1) geliefert wird.
  7. Atemgerät nach Anspruch 5 oder 6,
    dadurch gekennzeichnet, dass die Platte (8) abdichtend im Gehäuse (10) mit Hilfe einer flexiblen Membran (12) angeordnet ist.
  8. Atemgerät nach einem der vorstehenden Ansprüche 1 bis 7,
    gekennzeichnet durch Filtermittel, die in dem Strömungsweg zwischen dem Ventilmittel und der umgebenden Atmosphäre vorgesehen sind.
EP96923136A 1995-07-05 1996-06-27 Atemausrüstung Expired - Lifetime EP0956100B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9502439A SE511288C2 (sv) 1995-07-05 1995-07-05 Andningsutrustning som vid fraånfall automatiskt öppnar mot ytterluften
SE9502439 1995-07-05
PCT/SE1996/000852 WO1997002070A1 (en) 1995-07-05 1996-06-27 Breathing equipment

Publications (2)

Publication Number Publication Date
EP0956100A1 EP0956100A1 (de) 1999-11-17
EP0956100B1 true EP0956100B1 (de) 2002-08-28

Family

ID=20398858

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96923136A Expired - Lifetime EP0956100B1 (de) 1995-07-05 1996-06-27 Atemausrüstung

Country Status (6)

Country Link
EP (1) EP0956100B1 (de)
AU (1) AU711329B2 (de)
CA (1) CA2226099A1 (de)
DE (1) DE69623353T2 (de)
SE (1) SE511288C2 (de)
WO (1) WO1997002070A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9844362B2 (en) 2015-01-13 2017-12-19 Covidien Lp Exchangeable core biopsy needle
CN106955431B (zh) * 2017-05-29 2022-08-30 东台市江海救生消防设备有限公司 紧急逃生呼吸器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR796977A (fr) * 1935-10-22 1936-04-18 Perfectionnements aux appareils de protection contre les gaz
DE913260C (de) * 1941-09-04 1954-06-10 Draegerwerk Ag Rueckzugssignalvorrichtung fuer Sauerstoff- und Pressluftatemschutzgeraete
US5385141A (en) * 1992-04-16 1995-01-31 Siebe North, Inc. Speech diaphragm and exhalation valve
GB9226054D0 (en) * 1992-12-14 1993-02-10 Middlemace Ltd Flow indicator
SE504000C2 (sv) * 1995-02-20 1996-10-14 Comasec International Sa Ansiktsmask för andning av gas från förråd eller den omgivande atmosfären

Also Published As

Publication number Publication date
SE9502439D0 (sv) 1995-07-05
AU6372896A (en) 1997-02-05
SE511288C2 (sv) 1999-09-06
DE69623353D1 (de) 2002-10-02
DE69623353T2 (de) 2003-04-17
SE9502439L (sv) 1997-01-06
EP0956100A1 (de) 1999-11-17
WO1997002070A1 (en) 1997-01-23
AU711329B2 (en) 1999-10-14
CA2226099A1 (en) 1997-01-23

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