GB923990A - Improvements in or relating to respiratory apparatus - Google Patents

Improvements in or relating to respiratory apparatus

Info

Publication number
GB923990A
GB923990A GB31785/61A GB3178561A GB923990A GB 923990 A GB923990 A GB 923990A GB 31785/61 A GB31785/61 A GB 31785/61A GB 3178561 A GB3178561 A GB 3178561A GB 923990 A GB923990 A GB 923990A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
valve
breathing
pressure
circuit
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
Application number
GB31785/61A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB923990A publication Critical patent/GB923990A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/02—Valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00—Respiratory apparatus
    • A62B7/02—Respiratory apparatus with compressed oxygen or air
    • A62B7/04—Respiratory apparatus with compressed oxygen or air and lung-controlled oxygen or air valves

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Biomedical Technology (AREA)
  • Anesthesiology (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

923,990. Respiratory appliances. O. H. DRAGER, [trading as HEINR DRAGERWERKE & BERNH DRAGER]. Sept. 4, 1961 [Sept. 2, 1960], No. 31785/61. Class 81 (2). In a closed-circuit breathing-equipment a pressure-sensitive device, influenced by pressure within the circuit, controls a closure means which arrests flow around the circuit and also controls an oxygen supply valve. In one form, exhaled gas from a mask passes through a duct 1 to a carbon-dioxide absorber 2 and thence to a breathing-bag 4 leading through an inhalation valve 7 back to the mask. A diaphragm 15 is mounted across the duct 3, leading from the absorber to the breathing-bag so that, when the user inhales, the pressure difference moves the diaphragm towards the right whereupon a spring-loaded valve 17, carried by the diaphragm, is opened by striking an adjustable stop 20. At the same time a bridge member 18, also mounted on the diaphragm, opens a tilting valve 23 to admit oxygen to the system from a pressure regulator 10 and supply cylinder 8. In modifications the diaphragm assembly is located to replace the inhalation valve while in one of these the valve comprises a seating mounted on the diaphragm and normally closed against a fixed stop, so as to be opened on movement of the diaphragm.
GB31785/61A 1960-09-02 1961-09-04 Improvements in or relating to respiratory apparatus Expired GB923990A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED34157A DE1173342B (en) 1960-09-02 1960-09-02 Breathing apparatus with breathing air circulation and lung-controlled breathing gas supply valve

Publications (1)

Publication Number Publication Date
GB923990A true GB923990A (en) 1963-04-18

Family

ID=7042065

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31785/61A Expired GB923990A (en) 1960-09-02 1961-09-04 Improvements in or relating to respiratory apparatus

Country Status (2)

Country Link
DE (1) DE1173342B (en)
GB (1) GB923990A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0631795A1 (en) * 1993-06-01 1995-01-04 Litton Systems, Inc. Regulator for self contained breathing apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE644212C (en) * 1929-05-25 1937-04-26 Bernh Draeger Oxygen breathing apparatus with lung-controlled oxygen supply
DE605970C (en) * 1929-05-25 1934-11-22 Draegerwerk Heinr U Bernh Breathing device with automatically controlled nutrient gas supply

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0631795A1 (en) * 1993-06-01 1995-01-04 Litton Systems, Inc. Regulator for self contained breathing apparatus

Also Published As

Publication number Publication date
DE1173342B (en) 1964-07-02

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