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GB1237273A - Respiratory ventilation machine - Google Patents

Respiratory ventilation machine

Info

Publication number
GB1237273A
GB1237273A GB32259/68A GB3225968A GB1237273A GB 1237273 A GB1237273 A GB 1237273A GB 32259/68 A GB32259/68 A GB 32259/68A GB 3225968 A GB3225968 A GB 3225968A GB 1237273 A GB1237273 A GB 1237273A
Authority
GB
United Kingdom
Prior art keywords
chamber
gas
valve
control chamber
exhalation
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
GB32259/68A
Inventor
Roger Edward Wentworth Manley
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.)
Blease Medical Equipment Ltd
Original Assignee
Blease Medical Equipment Ltd
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 Blease Medical Equipment Ltd filed Critical Blease Medical Equipment Ltd
Priority to GB32259/68A priority Critical patent/GB1237273A/en
Priority to DE19691931903 priority patent/DE1931903A1/en
Publication of GB1237273A publication Critical patent/GB1237273A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B21/00—Devices for producing oxygen from chemical substances for respiratory apparatus
    • 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. ventilators; 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. ventilators; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M16/0009—Accessories therefor, e.g. sensors, vibrators, negative pressure with sub-atmospheric pressure, e.g. during expiration
    • A61M16/0012—Accessories therefor, e.g. sensors, vibrators, negative pressure with sub-atmospheric pressure, e.g. during expiration by Venturi 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. ventilators; 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. ventilators; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/105—Filters
    • A61M16/106—Filters in a path
    • A61M16/1065—Filters in a path in the expiratory 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. ventilators; Tracheal tubes
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/201—Controlled 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. ventilators; Tracheal tubes
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/201—Controlled valves
    • A61M16/206—Capsule valves, e.g. mushroom, membrane 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. ventilators; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/105—Filters
    • A61M16/1055—Filters bacterial
    • 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. ventilators; 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

Landscapes

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

Abstract

1,237,273. Artificial respiration. BLEASE MEDICAL EQUIPMENT Ltd. 5 July, 1968, No. 32259/68. Heading A5T. A ventilation machine comprises a variable volume chamber 10 adapted to be connected to a face mask 84 and to be contracted to force gas to the user by pressure of gas within a variable volume control chamber 16, inhalation and exhalation tubes 82, 86, and an over-centre toggle mechanism 28, 40 responsive to the control chamber volume and arranged to actuate a first valve 34 which can allow gas into the control chamber, there being a second valve 50 which can be actuated to allow exit of gas from the control chamber and there being a venturi arrangement 92 connected to the exhalation tube for assisting exhalation. As shown, in the inspiration phase, gas is supplied from a pump to an inlet 64 and from thence through conduits 68, 72 to the first valve 34, which is open, and into the control chamber. The gas also passes through conduits 66, 102, 106 to venturi nozzles 94, 96 and through conduits 68, 74 to an expansible valve operating chamber 60. During inspiration driving gas flows into the control chamber 16 through the valve 34 and by compressing the chamber 10 drives breathing gas (air, oxygen, or an anaesthetic mixture) to the user. After a period determined by the setting of a bleed valve 20 a diaphragm 18 moves against a spring 24 and the pressure in a chamber 22 to actuate the over-centre toggle mechanism through a rod 44 and to close the valve 34. The driving gas is then able to expand the chamber 60 causing the second valve 50 to open and allow the exit of gas from the chamber, the chamber 10 then expanding and drawing in breathing gas from a source 89 while the user exhales into a duct 86 through a filter 89 and the double venturi 92 into the control chamber. Exhalation may be assisted or limited by the adjustment of a tap 104 which by controlling the operation of the venturi nozzles 94, 96 provides a positive or negative pressure in the exhalation ducts. The duration of the expiratory phase is determined by the setting of a bleed valve 30 to the chamber 22 and the machine reverts to inspiration when pressure in the control chamber 16 has fallen such that the diphragm, moved by the spring 24, actuates the overcentre mechanism to open the valve 34. The inspiratory pressure may be controlled by adjusting the compression in the spring 24.
GB32259/68A 1968-07-05 1968-07-05 Respiratory ventilation machine Expired GB1237273A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB32259/68A GB1237273A (en) 1968-07-05 1968-07-05 Respiratory ventilation machine
DE19691931903 DE1931903A1 (en) 1968-07-05 1969-06-24 Ventilation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32259/68A GB1237273A (en) 1968-07-05 1968-07-05 Respiratory ventilation machine

Publications (1)

Publication Number Publication Date
GB1237273A true GB1237273A (en) 1971-06-30

Family

ID=10335828

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32259/68A Expired GB1237273A (en) 1968-07-05 1968-07-05 Respiratory ventilation machine

Country Status (2)

Country Link
DE (1) DE1931903A1 (en)
GB (1) GB1237273A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4702242A (en) * 1984-06-28 1987-10-27 Gambro Engstrom Ab Respirator and/or anesthesia supply apparatus
US4877023A (en) * 1984-11-20 1989-10-31 B.O.C.S.A. Apparatus for artificial ventilation for assisting the volumetric breathing of a patient
US5979443A (en) * 1995-06-08 1999-11-09 University Of Wales College Of Medicine Closed ventilation/anesthesia apparatus
WO2011041838A1 (en) * 2009-10-08 2011-04-14 Monash University Method, system and apparatus for ventilation
EP2781748A4 (en) * 2011-12-08 2015-05-27 Metran Co Ltd PUMP UNIT AND APPARATUS FOR RESPIRATORY ASSISTANCE
CN106310481A (en) * 2016-08-15 2017-01-11 卢平平 Oxygen supply injection-free anesthesia device
CN109715236A (en) * 2016-07-13 2019-05-03 弗劳恩霍夫应用研究促进协会 In patient's artificial respiration or during supporting breathing, control of breathing applies the aerosol of powder type

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4702242A (en) * 1984-06-28 1987-10-27 Gambro Engstrom Ab Respirator and/or anesthesia supply apparatus
US4877023A (en) * 1984-11-20 1989-10-31 B.O.C.S.A. Apparatus for artificial ventilation for assisting the volumetric breathing of a patient
US5979443A (en) * 1995-06-08 1999-11-09 University Of Wales College Of Medicine Closed ventilation/anesthesia apparatus
WO2011041838A1 (en) * 2009-10-08 2011-04-14 Monash University Method, system and apparatus for ventilation
EP2781748A4 (en) * 2011-12-08 2015-05-27 Metran Co Ltd PUMP UNIT AND APPARATUS FOR RESPIRATORY ASSISTANCE
US10036377B2 (en) 2011-12-08 2018-07-31 Metran Co., Ltd. Pump unit and respiratory assistance device
CN109715236A (en) * 2016-07-13 2019-05-03 弗劳恩霍夫应用研究促进协会 In patient's artificial respiration or during supporting breathing, control of breathing applies the aerosol of powder type
CN109715236B (en) * 2016-07-13 2023-04-14 弗劳恩霍夫应用研究促进协会 Respiratory controlled administration of an aerosol in powder form during artificial respiration or supported respiration of the patient
CN106310481A (en) * 2016-08-15 2017-01-11 卢平平 Oxygen supply injection-free anesthesia device

Also Published As

Publication number Publication date
DE1931903A1 (en) 1970-01-15

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