GB1031520A - Improvements in or relating to ventilation machines - Google Patents

Improvements in or relating to ventilation machines

Info

Publication number
GB1031520A
GB1031520A GB47546/62A GB4754662A GB1031520A GB 1031520 A GB1031520 A GB 1031520A GB 47546/62 A GB47546/62 A GB 47546/62A GB 4754662 A GB4754662 A GB 4754662A GB 1031520 A GB1031520 A GB 1031520A
Authority
GB
United Kingdom
Prior art keywords
valve
bellows
user
gas
pressure
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
GB47546/62A
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 Anaesthetic Equipment Ltd
Original Assignee
Blease Anaesthetic 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 Anaesthetic Equipment Ltd filed Critical Blease Anaesthetic Equipment Ltd
Priority to GB47546/62A priority Critical patent/GB1031520A/en
Priority to US330355A priority patent/US3304939A/en
Priority to DE19631491633 priority patent/DE1491633C/en
Publication of GB1031520A publication Critical patent/GB1031520A/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
    • 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
    • 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
    • A61M16/0051—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes with alarm 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
    • A61M16/0057—Pumps therefor
    • A61M16/0075—Bellows-type

Landscapes

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

Abstract

1,031,520. Artificial respiration apparatus. BLEASE ANAESTHETIC EQUIPMENT Ltd. Dec. 12, 1963 [Dec. 17, 1962], No. 47546/62. Heading A5T. Artificial respiration apparatus for supplying gas to a user at a preset tidal volume and predetermined cycling rate during normal operation, has a value which opens on spontaneous inhalation by the user to cause cessation of the cyclic operation of the apparatus and permit passage of gas to the user. A bellows 12 is supplied with respirable gas at a constant rate through a pressure regulator 28 and a needle valve 30. When the bellows is inflated to a predetermined maximum, a valve 32 is opened by an over-centre mechanism 34 actuated through a link 46 by a biased lever 20 connected to the top plate 16 of the bellows, gas then flowing to a mask 54 via a second needle valve 48 to produce an inhalation. The bellows then deflates to a predetermined minimum when the valve 32 is closed by the over-centre mechanism and exhalation is permitted. The exhalation valve 60 is diaphragm-operated and is opened when the pressure in a control chamber 64 is reduced on closure of the valve 32. In the event that the user inhales spontaneously, a negative pressure created in the user's supply conduit 51 causes a diaphragm 74 to move to open a demand valve 72. If the bellows deflates below a predetermined minimum, the top plate 16 contacts a valve member 82 which opens a valve 80 through which respirable gas is supplied directly to the bellows via the pressure regulator 28, thus by-passing the needle valve 30. A blowoff valve 70 permits escape of gas to the atmosphere through a whistle 73 if the pressure in the mask rises above a predetermined maximum e.g. due to an obstruction in the user's lungs.
GB47546/62A 1962-12-17 1962-12-17 Improvements in or relating to ventilation machines Expired GB1031520A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB47546/62A GB1031520A (en) 1962-12-17 1962-12-17 Improvements in or relating to ventilation machines
US330355A US3304939A (en) 1962-12-17 1963-12-13 Ventilating machines
DE19631491633 DE1491633C (en) 1962-12-17 1963-12-16 Ventilator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB47546/62A GB1031520A (en) 1962-12-17 1962-12-17 Improvements in or relating to ventilation machines

Publications (1)

Publication Number Publication Date
GB1031520A true GB1031520A (en) 1966-06-02

Family

ID=10445368

Family Applications (1)

Application Number Title Priority Date Filing Date
GB47546/62A Expired GB1031520A (en) 1962-12-17 1962-12-17 Improvements in or relating to ventilation machines

Country Status (2)

Country Link
US (1) US3304939A (en)
GB (1) GB1031520A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3512521A (en) * 1965-12-06 1970-05-19 William C Jones Breath isolator for pulmonary function testing
DE1273134B (en) * 1965-12-20 1968-07-18 Draegerwerk Ag Ventilator
US3889660A (en) * 1973-10-04 1975-06-17 Searle Cardio Pulmonary Syst Spirometer
DE3617327A1 (en) * 1986-05-23 1987-11-26 Frimberger Erintrud DEVICE FOR HEART MASSAGE AND VENTILATION

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2383181A (en) * 1943-01-29 1945-08-21 Revair Corp Apparatus for inducing respiration
US2900977A (en) * 1955-05-31 1959-08-25 De Loss L Marsh Underwater breathing apparatus
GB842890A (en) * 1956-10-12 1960-07-27 Roger Edward Wentworth Manley Improvements in or relating to apparatus for maintaining artificial respiration
US2871854A (en) * 1956-12-14 1959-02-03 Christian J Lambertsen Breathing apparatus
USRE25871E (en) * 1958-12-05 1965-10-05 Lung ventilators and control mechanism therefor
GB908874A (en) * 1959-01-23 1962-10-24 Energeticky Ustav Apparatus for use in the determination of the silicon content of water
FR1218838A (en) * 1959-03-13 1960-05-12 F Aulas & Cie Ets Improvements to resuscitation devices

Also Published As

Publication number Publication date
US3304939A (en) 1967-02-21
DE1491633A1 (en) 1969-04-03
DE1491633B2 (en) 1972-10-26

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