EP0547296B1 - Dispositif d'oxygène chimique - Google Patents

Dispositif d'oxygène chimique Download PDF

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Publication number
EP0547296B1
EP0547296B1 EP92113862A EP92113862A EP0547296B1 EP 0547296 B1 EP0547296 B1 EP 0547296B1 EP 92113862 A EP92113862 A EP 92113862A EP 92113862 A EP92113862 A EP 92113862A EP 0547296 B1 EP0547296 B1 EP 0547296B1
Authority
EP
European Patent Office
Prior art keywords
bag
expiratory
respiratory
chemical
fact
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
EP92113862A
Other languages
German (de)
English (en)
Other versions
EP0547296A1 (fr
Inventor
Volker Hünnebeck
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.)
Auergesellschaft GmbH
Original Assignee
Auergesellschaft GmbH
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 Auergesellschaft GmbH filed Critical Auergesellschaft GmbH
Publication of EP0547296A1 publication Critical patent/EP0547296A1/fr
Application granted granted Critical
Publication of EP0547296B1 publication Critical patent/EP0547296B1/fr
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
    • A62B7/08—Respiratory apparatus containing chemicals producing oxygen

Definitions

  • the invention relates to a chemical oxygen device of the type specified in the preamble of claim 1.
  • a pressure relief system for a chemical oxygen device with pendulum breathing, which exhales exhaled air when the breathing bag is filled with regenerated breathing air before it can flow through the chemical cartridge in order to regulate the oxygen production accordingly (DE-A-26 27 722 ).
  • the pressure relief valve lies in the flow path of the exhaled and inhaled air, which means that not only exhaled air is blown off to the atmosphere, but also inhaled air flowing in from the chemical cartridge, so that the holding time of the chemical oxygen device is reduced.
  • the temperatures of the inhaled air are significantly increased because there is a double passage of air through the heated chemical cartridge.
  • the invention has for its object to develop a chemical oxygen device of the type mentioned, in which the holding time is increased and the inhalation temperature in the breathing bag is reduced.
  • the chemical oxygen device essentially consists of a chemical cartridge 1 which develops the oxygen, a breathing bag 2, within which a further smaller breathing bag is arranged as an exhalation bag 3 for receiving exhaled air, one which is connected to the exhalation bag 3
  • Pressure relief valve 4 which responds to the pressure of the breathing bag 2 by means of a tension element 5, a valve control 6 with an exhalation valve 6 a and an inhalation valve 6 b, a heat exchanger 7 and a breathing tube 8 with a mouthpiece 9.
  • the exhalation bag 3 is connected to the inlet 1 a and the breathing bag 2 (inhalation bag) is connected to the outlet 1 b of the chemical cartridge 1.
  • the flexible tension element 5 connected to the pressure relief valve is, for example, a ball chain or a cord which is divided into two parts 5 a, 5 b.
  • the chemical oxygen device works as follows: The exhaled air passes from the breathing connection 9 via the breathing tube 8 and the exhalation valve 6 a directly into the exhalation bag 3 arranged inside the breathing bag 2 (inhalation bag), in which part of the exhaled air is collected in front of the chemical cartridge 1 and holds it back, while another part is through the chemical cartridge flows and reaches the breathing bag 2 as regenerated breathing air.
  • the breathing bag 2 fills and releases the pressure relief valve 4 arranged in the exhalation bag 3 through the pulling element 5, which is connected to the inner wall of the breathing bag 2, at a certain volume.
  • Fig. 2 shows a further advantageous embodiment of the arrangement of the exhalation bag 3 within the breathing bag 2, which is the inhalation bag.
  • the exhalation bag 3, which is smaller in volume than the inhalation bag 2, extends from one end face of the same to the other in the inhalation bag.
  • the end face of the exhalation bag 3 opposite the pressure relief valve 4 is connected over the entire area to the inner wall 2 a of the inhalation bag.
  • the exhalation bag 3 is larger in length compared to the length of the inhalation bag 2. In this way, the pressure relief valve 4 in the exhalation bag can be controlled to the pressure of the inhalation bag 2 by means of the continuous tension element 5.

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Emergency Medicine (AREA)
  • General Chemical & Material Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)

Claims (7)

  1. Inhalateur d'oxygène chimique avec un circuit d'inspiration présentant une cartouche chimique combinant du dioxyde de carbone et de la vapeur, dégageant de l'oxygène et compre-nant un soufflet respirateur équipé d'un détendeur, carac-térisé en ce que :
    a) à l'intérieur du soufflet d'inspiration (2) se trouve un deuxième soufflet, plus petit, servant à l'expi-ration (3) pour recueillir l'air expiré, qui est disposé à l'entrée de la cartouche chimique (1), et
    b) le soufflet d'expiration (3) présente un détendeur (4) rejetant l'air dans l'atmosphère environnante, dont la pression est réglée sur celle du soufflet d'inspi-ration (2).
  2. Inhalateur d'oxygène chimique selon la revendication 1, caractérisé en ce que le soufflet d'expiration (3) est connecté à l'entrée (1 a) et que le soufflet d'inspiration (2) est connecté à la sortie (1 b) de la cartouche chimique (1).
  3. Inhalateur d'oxygène chimique selon la revendication 1, caractérisé en ce que élément de tirage (5) relié au détendeur (4) et faisant office d'organe de commande, se compose de deux parties (5 a, 5 b), la partie (5 a) étant située entre le détendeur et la paroi interne (3 a) du soufflet d'expiration (3) tandis que l'autre partie (5 b) est logée entre la paroi externe (3 b) du soufflet d'expi-ration et la paroi interne (2 a) du soufflet d'inspiration (2).
  4. Inhalateur d'oxygène chimique selon les revendications 1 et 2, caractérisé en ce que le soufflet d'expiration (3) de volume plus petit, faisant face au soufflet d'inspiration (2) se déploie à l'intérieur du soufflet d'une paroi avant (2 b) de ce dernier à l'autre.
  5. Inhalateur d'oxygène chimique selon les revendications 1, 2 et 4, caractérisé en ce que la partie frontale opposée du soufflet d'expiration (3) au détendeur (4) est au contact de la paroi interne (2 a) du soufflet d'inspiration (2) sur toute sa surface.
  6. Inhalateur d'oxygène chimique selon les revendications 1, 2, 4 et 5, caractérisé en ce que le soufflet d'expiration (3) est plus long que le soufflet d'inspiration (2).
  7. Inhalateur d'oxygène chimique selon la revendication 1, caractérisé en ce que le soufflet d'expiration (3) à l'intérieur du soufflet d'inspiration (2) fait office de distributeur d'air et que l'air chaud éjecté de la cartouche chimique (1) est dirigé vers la périphérie externe du soufflet d'expiration (3) et vers la périphérie interne du soufflet d'inspiration (2).
EP92113862A 1991-11-13 1992-08-14 Dispositif d'oxygène chimique Expired - Lifetime EP0547296B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4137331 1991-11-13
DE4137331A DE4137331C2 (de) 1991-11-13 1991-11-13 Chemikalsauerstoffgerät

Publications (2)

Publication Number Publication Date
EP0547296A1 EP0547296A1 (fr) 1993-06-23
EP0547296B1 true EP0547296B1 (fr) 1996-04-03

Family

ID=6444718

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92113862A Expired - Lifetime EP0547296B1 (fr) 1991-11-13 1992-08-14 Dispositif d'oxygène chimique

Country Status (3)

Country Link
EP (1) EP0547296B1 (fr)
DE (2) DE4137331C2 (fr)
PL (1) PL169110B1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4411560C1 (de) * 1994-04-02 1995-08-03 Auergesellschaft Gmbh Chemikalsauerstoffgerät
CA2683542C (fr) 2008-11-07 2013-03-12 Robert E. Stewart Sac respiratoire d'urgence
CN102337924B (zh) * 2011-09-01 2013-04-17 山西瑞石防护技术有限公司 复合型自救器
CN105879255A (zh) * 2014-12-01 2016-08-24 陈晓曦 一种新型矿用隔绝式化学氧自救器
US20220001218A1 (en) * 2018-11-23 2022-01-06 Dezega Holding Ukraine, Llc Insulating breather

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980081A (en) * 1975-06-25 1976-09-14 Mine Safety Appliances Company Self-rescue breathing apparatus
DE2647987A1 (de) * 1976-10-20 1978-04-27 Auergesellschaft Gmbh Chemikal-sauerstoff-geraet
DE3514345A1 (de) * 1985-04-18 1986-10-30 Auergesellschaft Gmbh, 1000 Berlin Atembeutel
JPH0545316Y2 (fr) * 1986-07-25 1993-11-18

Also Published As

Publication number Publication date
PL169110B1 (pl) 1996-06-28
DE4137331A1 (de) 1993-05-19
EP0547296A1 (fr) 1993-06-23
PL295390A1 (en) 1993-05-31
DE59205902D1 (de) 1996-05-09
DE4137331C2 (de) 1994-09-01

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