GB497113A - Improvements in or relating to the administration of anesthetics - Google Patents

Improvements in or relating to the administration of anesthetics

Info

Publication number
GB497113A
GB497113A GB31745/37A GB3174537A GB497113A GB 497113 A GB497113 A GB 497113A GB 31745/37 A GB31745/37 A GB 31745/37A GB 3174537 A GB3174537 A GB 3174537A GB 497113 A GB497113 A GB 497113A
Authority
GB
United Kingdom
Prior art keywords
valve
gas
outlet
spring
arm
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
GB31745/37A
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.)
OHIO CHEMICAL AND Manufacturing Co
Original Assignee
OHIO CHEMICAL AND Manufacturing Co
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 OHIO CHEMICAL AND Manufacturing Co filed Critical OHIO CHEMICAL AND Manufacturing Co
Publication of GB497113A publication Critical patent/GB497113A/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
    • A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0816—Joints or connectors
    • A61M16/0833—T- or Y-type connectors, e.g. Y-piece
    • 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
    • A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0875—Connecting 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
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/105—Filters
    • A61M16/106—Filters in a path
    • A61M16/107—Filters in a path in the inspiratory path

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)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

497,113. Gas-metering apparatus; gas bags ; valves. OHIO CHEMICAL & MANUFACTURING CO. Nov. 18, 1937, Nos. 31745 and 31746. Convention dates, Dec. 11, 1936 and July 2, 1937. [Classes 54 and 135] [Also in Group VI] In anµsthetic-administering apparatus the flow of gas or vapour is under the control of a device actuated by the patient or by the anµsthetist, and permitting only a predetermined small quantity of gas to flow at each actuation, the flow ceasing whenever the device is stationary in any position. The control device 23, Fig. 2, is actuated by a hand-pressed lever connected to a Bowden cable mechanism 40, 40a and comprises inlet and outlet spring- pressed valves 24, 27, mounted by screwnipples on the casing 23, and having spindles 24e, 27e engageable by a rocking arm 30. The arm is pivoted in a spindle 31 and is normally biassed by a spring 34 on its operating rod 32 to hold valve 27 open. On pressing up rod 32, by a head 36 on the Bowden wire 40a clamping a sealing diaphragm 38, arm 30 is rocked first to close valve 27 and then open valve 24, thus admitting a small quantity of gas which on reversal of the arm is drawn through valve 27 by inhalation of the patient. The casing 23 is connected by a pipe 25 with a small reservoir which may be housed within the stand pillar of the apparatus. In a modification, the outlet valve 102d, Fig. 5, is slidably mounted and spring-pressed upwardly in a frame 113 to engage a seating 102 in the outlet pipe 117 when the frame is raised by the Bowden cable head 107 against a spring 119. A rod 115 on the frame engages the spindle 116 of, and lifts the inlet valve 101 after the outlet valve is closed. Bores 105 in the valve-seating block 104 conduct the gas to the outlet. A gas-andair bag 49, Fig. 3, is mounted to surround a non-collapsable corrugated rubber tube 43 having perforations 44 communicating with the bag. The tube 43 has at one end a ring of air inlets 47 controlled by a disc valve 48, and at the other a disc valve 51.
GB31745/37A 1936-12-11 1937-11-18 Improvements in or relating to the administration of anesthetics Expired GB497113A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US497113XA 1936-12-11 1936-12-11

Publications (1)

Publication Number Publication Date
GB497113A true GB497113A (en) 1938-12-13

Family

ID=21961276

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31745/37A Expired GB497113A (en) 1936-12-11 1937-11-18 Improvements in or relating to the administration of anesthetics

Country Status (1)

Country Link
GB (1) GB497113A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009121139A1 (en) * 2008-04-03 2009-10-08 Colin Dunlop Improved anaesthetic apparatus
US8146592B2 (en) 2004-02-26 2012-04-03 Ameriflo, Inc. Method and apparatus for regulating fluid flow or conserving fluid flow
US8230859B1 (en) 2004-02-26 2012-07-31 Ameriflo, Inc. Method and apparatus for regulating fluid
CN109011065A (en) * 2018-08-21 2018-12-18 徐州市儿童医院 A kind of oxygen uptake and sampling double trunk nasal catheter of exhaling
WO2019045657A1 (en) * 2017-09-01 2019-03-07 Brandt Biotech Co., Ltd. Conveying tube set with adapters for delivering volatile liquid anesthetics
CN110721381A (en) * 2019-11-28 2020-01-24 袁从虎 Atomizing inhaler for anesthesia

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8146592B2 (en) 2004-02-26 2012-04-03 Ameriflo, Inc. Method and apparatus for regulating fluid flow or conserving fluid flow
US8230859B1 (en) 2004-02-26 2012-07-31 Ameriflo, Inc. Method and apparatus for regulating fluid
WO2009121139A1 (en) * 2008-04-03 2009-10-08 Colin Dunlop Improved anaesthetic apparatus
WO2019045657A1 (en) * 2017-09-01 2019-03-07 Brandt Biotech Co., Ltd. Conveying tube set with adapters for delivering volatile liquid anesthetics
CN109011065A (en) * 2018-08-21 2018-12-18 徐州市儿童医院 A kind of oxygen uptake and sampling double trunk nasal catheter of exhaling
CN110721381A (en) * 2019-11-28 2020-01-24 袁从虎 Atomizing inhaler for anesthesia

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