GB1421783A - Automatic ventilator for inducing respiration - Google Patents

Automatic ventilator for inducing respiration

Info

Publication number
GB1421783A
GB1421783A GB5091672A GB5091672A GB1421783A GB 1421783 A GB1421783 A GB 1421783A GB 5091672 A GB5091672 A GB 5091672A GB 5091672 A GB5091672 A GB 5091672A GB 1421783 A GB1421783 A GB 1421783A
Authority
GB
United Kingdom
Prior art keywords
pressure
valve
line
volume
port
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
GB5091672A
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.)
EAST CO Ltd H G
Original Assignee
EAST CO Ltd H G
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 EAST CO Ltd H G filed Critical EAST CO Ltd H G
Priority to GB5091672A priority Critical patent/GB1421783A/en
Priority to DE19732354982 priority patent/DE2354982A1/en
Priority to US413128A priority patent/US3916890A/en
Publication of GB1421783A publication Critical patent/GB1421783A/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

Landscapes

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

Abstract

1421783 Automatic ventilator H G EAST & CO Ltd 26 Oct 1973 [4 Nov 1972] 50916/72 Heading A5T An automatic ventilator includes a gas input line 10, at least one flexible expandable container 15 or 16 communicating with said input line, a constraint 17 limiting the expansion of said container, a gas output line 13 and a pressure responsive valve 12 interconnecting said lines and responsive to the gas pressures in the lines to open to pass gas to the output line 13 and to close to permit exhalation &c by a patient. A valve device 26 is provided in the output line 13 to pass gas to an inspiration port 27 and from an expiration port 28 to atmosphere and to avoid inspiratory and expiratory flow in a common line. The device also has a vent port 29 open to atmosphere. The gas input line 10 is connected to the output line 13 via the pressure responsive valve 12 and a filter 11. The pressure responsive valve 12 operates to remain closed while the line 13 vents to atmosphere until the pressure in the input line 10 reaches a specified value and remains open until the pressures in the input and output lines 10 and 13 are substantially equal. The specified pressure at which the valve opens is adjustable by means of collar 25. The inspiration port 27 is coupled to the output line 13 through a one way valve 30 which permits flow from 13 to 27. A diaphragm valve 31 uses the pressure in the output line 13 to control communication between the expiration port 28 and the vent port 29, closing across the expiration port when the pressure in the line 13 increases upon opening of the pressure responsive valve. The ventilator is both pressure and volume limited, the pressure limit being set by adjustment of the pressure responsive valve 12 and the volume limit being set by the volume of the bag 15, the minimum volume that the ventilator can deliver per cycle. In an alternative embodiment, two expansible containers are provided, the second also having a constraint 17 and communicating with the input line 10 through a flow control valve 20. In this case the volume of bag 16 at the moment of opening of valve 12 is included in the volume limit.
GB5091672A 1972-11-04 1972-11-04 Automatic ventilator for inducing respiration Expired GB1421783A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB5091672A GB1421783A (en) 1972-11-04 1972-11-04 Automatic ventilator for inducing respiration
DE19732354982 DE2354982A1 (en) 1972-11-04 1973-11-02 AUTOMATIC VENTILATION DEVICE
US413128A US3916890A (en) 1972-11-04 1973-11-05 Autovent field ventilator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5091672A GB1421783A (en) 1972-11-04 1972-11-04 Automatic ventilator for inducing respiration

Publications (1)

Publication Number Publication Date
GB1421783A true GB1421783A (en) 1976-01-21

Family

ID=10457907

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5091672A Expired GB1421783A (en) 1972-11-04 1972-11-04 Automatic ventilator for inducing respiration

Country Status (3)

Country Link
US (1) US3916890A (en)
DE (1) DE2354982A1 (en)
GB (1) GB1421783A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4883051A (en) * 1988-02-18 1989-11-28 Summa Vest, Inc. Disposable breathing system and components
US5540220A (en) * 1994-12-08 1996-07-30 Bear Medical Systems, Inc. Pressure-limited, time-cycled pulmonary ventilation with volume-cycle override
US6067984A (en) * 1997-10-14 2000-05-30 Piper; Samuel David Pulmonary modulator apparatus
US8783251B2 (en) * 2010-02-12 2014-07-22 Piper Medical, Inc Enhanced manually actuated pressure controlled modulator technology

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL50147C (en) * 1937-05-31
US3021839A (en) * 1956-08-31 1962-02-20 De Loss L Marsh Underwater breathing apparatus
DE1251913B (en) * 1965-03-20 1967-10-12 Dragerwerk Hemr & Bernh Drager, Lübeck Ventilation device

Also Published As

Publication number Publication date
US3916890A (en) 1975-11-04
DE2354982A1 (en) 1974-05-16

Similar Documents

Publication Publication Date Title
US4057059A (en) Intermittent positive pressure breathing device
GB1034759A (en) Valve for artificial respiration apparatus
GB1351326A (en) Automatic therapeutic ventilators
GB1444607A (en) Ventilators
GB1212527A (en) Improvements in or relating to lung ventilating apparatus
GB1506606A (en) Lung ventilator
GB875790A (en) Breathing control valve
GB1447133A (en) Method and apapratus for triggering the inspiratory phase of a respirator
GB2044110A (en) Respiratory mask
GB437709A (en) Improvements in or relating to apparatus for artificial respiration
US3556095A (en) Automatic intermittent positive pressure ventilator
GB1528583A (en) Lung ventilating apparatus
US3659598A (en) Respirator with fluid amplifiers with fluid timer
GB1181411A (en) Valve Assembly
GB1495642A (en) Valve devices
GB1062772A (en) A respiratory apparatus
GB649229A (en) Improvements in apparatus for the control of respiration, resuscitation and anaesthesia
US4340045A (en) Lung ventilator
GB1421783A (en) Automatic ventilator for inducing respiration
GB1498480A (en) Breathing apparatus
ES470775A1 (en) Respirator for emergency air supply to a patient
US3068857A (en) Apparatus for controlling or assisting respiration
GB1518356A (en) Breathing apparatus
GB1281802A (en) Improvements in or relating to respirators for artificial ventilation
SE315981B (en)

Legal Events

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