GB544549A - Improvements relating to analgesic apparatus - Google Patents

Improvements relating to analgesic apparatus

Info

Publication number
GB544549A
GB544549A GB13459/40A GB1345940A GB544549A GB 544549 A GB544549 A GB 544549A GB 13459/40 A GB13459/40 A GB 13459/40A GB 1345940 A GB1345940 A GB 1345940A GB 544549 A GB544549 A GB 544549A
Authority
GB
United Kingdom
Prior art keywords
chamber
valve
volume
gas
tappet
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
GB13459/40A
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.)
Svenska AB Gasaccumulator
Original Assignee
Svenska AB Gasaccumulator
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 Svenska AB Gasaccumulator filed Critical Svenska AB Gasaccumulator
Publication of GB544549A publication Critical patent/GB544549A/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
    • A61M16/10—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

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)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

544,549. Administering anaesthetics. SVENSKA AKTIEBOLAGET GASACCUMULATOR. Aug. 26, 1940, No. 13459. Convention date, Aug. 24, 1939. [Class 81 (ii)] An appliance for supplying anaesthetic gas in a predetermined quantity followed by a second quantity sufficient to maintain the analgesia includes an expansible feed chamber 20 connected to a device sensitive to change in volume of the chamber and adapted to operate a valve 31 to admit air or oxygen to the gas being administered. In the form shown, decrease in volume of the chamber 20 causes pivotal movement of an inverted U-shape member 8 supporting a cam 28, such movement causing vertical movement of a tappet 29 connected to the valve 31. Upon emptying of the chamber 20, the supply of gas is cut off from the patient for a predetermined period of time dependent upon the amount of opening of a throttle valve 7. In a modification, operation of the valve 31 is obtained by connecting the tappet 29 to a lever supporting a weighted cord. Upon decrease in volume of the chamber, the weight can fall, to rotate the lever and open the valve 31. Specification 511,559 is referred to.
GB13459/40A 1939-08-24 1940-08-26 Improvements relating to analgesic apparatus Expired GB544549A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE215015X 1939-08-24

Publications (1)

Publication Number Publication Date
GB544549A true GB544549A (en) 1942-04-17

Family

ID=20305280

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13459/40A Expired GB544549A (en) 1939-08-24 1940-08-26 Improvements relating to analgesic apparatus

Country Status (5)

Country Link
BE (1) BE439018A (en)
CH (1) CH215015A (en)
FR (1) FR867196A (en)
GB (1) GB544549A (en)
NL (1) NL98424B (en)

Also Published As

Publication number Publication date
FR867196A (en) 1941-10-03
BE439018A (en)
NL98424B (en)
CH215015A (en) 1941-05-31

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