GB1362744A - Devices for generating a pulsating stream of a proportioned mixture of atmospheric air and another gas - Google Patents

Devices for generating a pulsating stream of a proportioned mixture of atmospheric air and another gas

Info

Publication number
GB1362744A
GB1362744A GB2864672A GB2864672A GB1362744A GB 1362744 A GB1362744 A GB 1362744A GB 2864672 A GB2864672 A GB 2864672A GB 2864672 A GB2864672 A GB 2864672A GB 1362744 A GB1362744 A GB 1362744A
Authority
GB
United Kingdom
Prior art keywords
oxygen
chamber
apertures
valve
bellows
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
GB2864672A
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.)
MINERVE
Original Assignee
MINERVE
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 MINERVE filed Critical MINERVE
Publication of GB1362744A publication Critical patent/GB1362744A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • A61M16/0057—Pumps therefor
    • A61M16/0081—Bag or bellow in a bottle
    • 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
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/12—Preparation of respiratory gases or vapours by mixing different gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/10—Mixing gases with gases
    • B01F23/19—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means
    • B01F23/191—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means characterised by the construction of the controlling means
    • 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
    • A61M16/0057—Pumps therefor
    • A61M16/0075—Bellows-type
    • 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
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/105—Filters
    • A61M16/106—Filters in a path
    • A61M16/107—Filters in a path in the inspiratory path
    • 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
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • 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
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/201—Controlled valves
    • A61M16/207—Membrane valves with pneumatic amplification stage, i.e. having master and slave membranes
    • 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
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/208—Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2499—Mixture condition maintaining or sensing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86815—Multiple inlet with single outlet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86815—Multiple inlet with single outlet
    • Y10T137/86823—Rotary valve

Landscapes

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

Abstract

1362744 Mixing gases in proportions SOC MINERVE SA 19 June 1972 [22 June 1971] 28646/72 Heading B1C Apparatus for supplying a gas/oxygen mixture to a respirator mask comprises a chamber 18 supplied with pulsating pressurised oxygen from a source 21 through passage 19; the valve chamber 31 is also connected to the source 21 through passage 34 so that the valve 32, 33 operates in synchronism with the pulsations. As the pressure in chamber 18 rises the valve 32, 33 closes and the weighted bellows 22 is compressed closing valve 25 and expelling the gas in the bellows through passages 26, 27 to the face mask. As the oxygen pressure falls, the bellows expands and valve 32, 33 opens; part of the oxygen in chamber 18 is drawn into the bellows through passages 30, 16, apertures 6a, 6b, chamber 3 and valve 25, and the rest is vented through passage 29. Atmospheric air is also drawn in through passages 28, 17 and respective apertures 6a, 6b and mixes with the oxygen in chamber 3 and the bellows. As shown in Fig. 2 the apertures 6a, 6b are arranged in two concentric arcuate rows and are opened to the oxygen and air supply passages 16, 17 by arcuate recesses 12, 13 in the bottom of a drum 7 rotatable by means of a knob 11 with respect to the disc 4 in which the apertures 6a, 6b are formed, thus altering the number of apertures through which the gases can flow. The total number of apertures in use is always the same so that the total output of gas mxiture is constant irrespecive of the air/oxygen proportions.
GB2864672A 1971-06-22 1972-06-19 Devices for generating a pulsating stream of a proportioned mixture of atmospheric air and another gas Expired GB1362744A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR717122657A FR2142628B1 (en) 1971-06-22 1971-06-22

Publications (1)

Publication Number Publication Date
GB1362744A true GB1362744A (en) 1974-08-07

Family

ID=9079054

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2864672A Expired GB1362744A (en) 1971-06-22 1972-06-19 Devices for generating a pulsating stream of a proportioned mixture of atmospheric air and another gas

Country Status (5)

Country Link
US (1) US3830257A (en)
DE (1) DE2229468C2 (en)
FR (1) FR2142628B1 (en)
GB (1) GB1362744A (en)
IT (1) IT959191B (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4054133A (en) * 1976-03-29 1977-10-18 The Bendix Corporation Control for a demand cannula
US4121580A (en) * 1977-02-07 1978-10-24 Robertshaw Controls Company Squeeze bag resuscitator with air-oxygen proportionating control
FR2521030A1 (en) * 1982-02-05 1983-08-12 Carboxyque Francaise Oxygen-enriched air supplier - comprises hollow mixing cylinder fed by cylinders and delivering mixt. through pneumatic valve
US4475573A (en) * 1983-05-09 1984-10-09 Sterling Faucet Co. Hot and cold mixing valve for feeding a shower head, bath tub or the like
US4609007A (en) * 1983-10-27 1986-09-02 Sterling Faucet Company Mixing valve for connection to hot and cold water supply lines for feeding a variably proportioned mixture of hot and cold water to a shower head or the like
DE3517325C1 (en) * 1985-05-14 1986-12-11 Drägerwerk AG, 2400 Lübeck Mixing and dosing device for flowing media
US4702240A (en) * 1986-07-22 1987-10-27 Bear Medical Systems, Inc. Demand-responsive gas blending system for medical ventilator
AU614731B2 (en) * 1986-12-09 1991-09-12 Maersk Indoplas Pty Limited Oxygen dilution apparatus
FR2645027B1 (en) * 1989-04-03 1992-04-17 Carburos Metalicos Sa Se De FLOW METER FOR OXYGEN ADMINISTRATION
US5014694A (en) * 1990-10-15 1991-05-14 Bird Products Corporation Ambient pressure air/oxygen blender
US5372129A (en) * 1992-06-23 1994-12-13 Ryder; Steven L. Oxygen dilution device for maintaining an essentially constant proportion of primary gas in a diluent gas
SE9602415D0 (en) * 1996-06-19 1996-06-19 Siemens Elema Ab Apparatus for supplying air and at least one additional gas to a living being
US5746199A (en) * 1996-08-21 1998-05-05 Bayron; Harry Respiratory valve
DE19727640C2 (en) * 1997-06-28 2000-01-20 Sanitaets Und Gesundheitshaus Arrangement for supplying people with breathing gas
US6647983B2 (en) * 2000-03-17 2003-11-18 The Johns Hopkins University Low-pressure valve
US6718979B1 (en) * 2000-06-05 2004-04-13 Dhd Healthcare Corporation Oxygen mask assembly
FR2852852A1 (en) * 2003-03-24 2004-10-01 Saime Sarl Artificial respirator, for the delivery of air to a patient, has a valve to inject a secondary gas into the air stream with two rotating disks, for a selective passage opening and pressed together to prevent leakage
US7210479B2 (en) * 2003-11-07 2007-05-01 Van Den Akker Erik Hyperoxic breathing system
US7617826B1 (en) 2004-02-26 2009-11-17 Ameriflo, Inc. Conserver
US8146592B2 (en) 2004-02-26 2012-04-03 Ameriflo, Inc. Method and apparatus for regulating fluid flow or conserving fluid flow
US7448594B2 (en) 2004-10-21 2008-11-11 Ameriflo, Inc. Fluid regulator
CN104090593B (en) * 2014-06-30 2017-01-25 深圳市科曼医疗设备有限公司 gas concentration control device
US10066431B2 (en) * 2016-03-30 2018-09-04 Ford Global Technologies Llc Bellows spring damper
DE102017130749B4 (en) * 2017-12-20 2022-02-17 Airbus Operations Gmbh System for supplying oxygen to oxygen masks in an aircraft

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA604704A (en) * 1960-09-06 Air-Shields Driving apparatus for lung ventilators
US2969789A (en) * 1956-03-23 1961-01-31 Morch Ernst Trier Respirator
US3068857A (en) * 1958-11-19 1962-12-18 British Oxygen Co Ltd Apparatus for controlling or assisting respiration
US3045668A (en) * 1959-01-20 1962-07-24 Invengineering Inc Intermittent positive pressure respirator
SE305721B (en) * 1966-01-19 1968-11-04 Aga Ab
GB1169203A (en) * 1966-06-30 1969-10-29 Cape Engineering Company Ltd Device for Administering a Gas to a Patient
US3530856A (en) * 1967-02-28 1970-09-29 Bird F M Mechanical volume limiting ventilator
DK126025B (en) * 1968-06-15 1973-06-04 Draegerwerk Ag Process for mixing pressurized gases and apparatus for carrying out the process.
US3664361A (en) * 1970-08-24 1972-05-23 Puritan Bennett Corp Respiration system

Also Published As

Publication number Publication date
DE2229468C2 (en) 1982-02-18
DE2229468A1 (en) 1973-01-11
FR2142628B1 (en) 1973-05-25
FR2142628A1 (en) 1973-02-02
IT959191B (en) 1973-11-10
US3830257A (en) 1974-08-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee