SE315981B - - Google Patents

Info

Publication number
SE315981B
SE315981B SE10056/67*A SE1005667A SE315981B SE 315981 B SE315981 B SE 315981B SE 1005667 A SE1005667 A SE 1005667A SE 315981 B SE315981 B SE 315981B
Authority
SE
Sweden
Prior art keywords
chamber
pressure
valve
gas
control device
Prior art date
Application number
SE10056/67*A
Inventor
P Schreiber
Original Assignee
Draeger O
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 Draeger O filed Critical Draeger O
Publication of SE315981B publication Critical patent/SE315981B/xx

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

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

1,175,714. Respiratory apparatus. O. H. DRAGER [trading as DRAGERWERK, HEINR & BERNH. DRAGER]. 24 July, 1967 [22 July, 1966], No. 33979/67. Heading A5T. Respiratory apparatus of the kind including a breathing bag 4 in a closed chamber 5 in which positive and negative pressures are alternately produced, for inducing inhalation and exhalation respectively, of the patient, comprises an adjustable control device 7 including a valve 8 which shuts off the flow of gas from the chamber 5 when the negative pressure therein reaches a predetermined value which is adjusted by adjustment of the control device. The breathing bag is connected to a respiratory circuit 2 which includes a carbon dioxide absorber 2c inhalation and exhalation valves 2a, 2b and an anaesthetic supply conduit 1. When a changeover valve 17 actuated by a diaphragm 14 in response to pressure in a chamber 13 of the control device closes a vent 10a, gas is supplied by an injector 10 to the chamber 5 for the inhalation phase via a conduit 6 and the valve 8 comprising a cup 21 and an adjustably spring loaded diaphragm 18 which is exposed on one side to atmosphere and on the other to the pressure in the chamber 5. Simultaneously pressure builds up in the chamber 13. At a predetermined positive pressure in the chambers 5, 13, the valve 17 opens the vent 10a so that gas from the injector 10 passes to atmosphere and entrains gas from the chambers 5, 13 for the exhalation phase. At a pressure in the chamber 5 determined by the spring-loading of the diaphragm 18, the valve 8 closes shutting off the chamber 5 from the control device so that there is no further drop in pressure in the chamber 5. Further pressure reduction in the chamber 13 operates the valve 17 to close the vent 10a so that gas is again supplied to the chamber 5 for the next inhalation phase.
SE10056/67*A 1966-07-22 1967-06-30 SE315981B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0050655 1966-07-22

Publications (1)

Publication Number Publication Date
SE315981B true SE315981B (en) 1969-10-13

Family

ID=7052816

Family Applications (1)

Application Number Title Priority Date Filing Date
SE10056/67*A SE315981B (en) 1966-07-22 1967-06-30

Country Status (4)

Country Link
US (1) US3527555A (en)
DE (1) DE1491691B1 (en)
GB (1) GB1175714A (en)
SE (1) SE315981B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988006904A1 (en) * 1987-03-09 1988-09-22 Olof Werner Apparatus for administration of at least two gases to a patient

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757776A (en) * 1971-06-01 1973-09-11 J Baumann Ventilator for an anesthesia gas machine
SE388127B (en) * 1975-04-30 1976-09-27 Cameco Ab RESPIRATORY SYSTEM
US4045835A (en) * 1976-08-30 1977-09-06 Under Sea Industries, Inc. Power deflator mechanism for scuba buoyancy vests
FI92286C (en) * 1992-02-21 1994-10-25 Instrumentarium Oy Device for controlling the gas volume supplied to a patient during an inhalation phase
FR2914192B1 (en) * 2007-04-02 2010-03-26 Georges Boussignac RESPIRATORY PROBE.
CN103301543B (en) * 2013-06-17 2015-12-09 广州医科大学附属第一医院 A kind of Oxygen drive to inhale also forms the device of Extrinsic positive end expiratory pressure mutually

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH310986A (en) * 1952-03-07 1955-11-15 Heinrich Dr Draeger Otto Device for artificial respiration.
US2766753A (en) * 1954-04-15 1956-10-16 Dragerwerk Fa Apparatus for artificial respiration, in particular for purposes of anesthesia
US3396725A (en) * 1964-01-17 1968-08-13 Drager Otto H Respirator with negative pressure limiting valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988006904A1 (en) * 1987-03-09 1988-09-22 Olof Werner Apparatus for administration of at least two gases to a patient

Also Published As

Publication number Publication date
US3527555A (en) 1970-09-08
GB1175714A (en) 1969-12-23
DE1491691B1 (en) 1969-12-04

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