GB747843A - Improvements in or relating to gas administering apparatus - Google Patents

Improvements in or relating to gas administering apparatus

Info

Publication number
GB747843A
GB747843A GB3336253A GB3336253A GB747843A GB 747843 A GB747843 A GB 747843A GB 3336253 A GB3336253 A GB 3336253A GB 3336253 A GB3336253 A GB 3336253A GB 747843 A GB747843 A GB 747843A
Authority
GB
United Kingdom
Prior art keywords
flowmeter
valve
mask
spindle
pass
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
GB3336253A
Inventor
Alan James Juby
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.)
BOC Group Ltd
Original Assignee
British Oxigen 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 British Oxigen Ltd filed Critical British Oxigen Ltd
Priority to GB3336253A priority Critical patent/GB747843A/en
Publication of GB747843A publication Critical patent/GB747843A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • 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
    • A61M16/104—Preparation of respiratory gases or vapours specially adapted for anaesthetics
    • 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
    • A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter

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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

747,843. Respiratory appliances. BRITISH OXYGEN CO., Ltd. Nov. 29, 1954 [Dec. 1, 1953], No. 33362/53. Class 81(2). The flowmeter in a gas administration apparatus is provided with a by-pass so that a large amount of gas may be passed to the patient without having to pass it through the flowmeter and the gas flow is controlled by a valve which is so connected to a masking device that the calibrations of the flowmeter are obscured when the by-pass is open. The mask is mechanically connected to the control knob of the valve and may either be in the form of a plate 19 connected directly to the valve spindle 17 so as to be moved sideways across the front of the flowmeter graduations 10 when the valve is moved to the open position or an elongated valve spindle may be mounted at one side of the flowmeter and carry the mask in the form of a radially projecting flag which, as the spindle is turned, rotates from a concealed position to a position in front of the meter. In cases where the flowmeter has a circular or semi-circular dial a mask, rotating with the valve spindle, is made to obscure the dial when the valve is turned to the open position.
GB3336253A 1953-12-01 1953-12-01 Improvements in or relating to gas administering apparatus Expired GB747843A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3336253A GB747843A (en) 1953-12-01 1953-12-01 Improvements in or relating to gas administering apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3336253A GB747843A (en) 1953-12-01 1953-12-01 Improvements in or relating to gas administering apparatus

Publications (1)

Publication Number Publication Date
GB747843A true GB747843A (en) 1956-04-18

Family

ID=10351932

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3336253A Expired GB747843A (en) 1953-12-01 1953-12-01 Improvements in or relating to gas administering apparatus

Country Status (1)

Country Link
GB (1) GB747843A (en)

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