GB1192378A - Improvements in or relating to Respiratory Apparatus - Google Patents

Improvements in or relating to Respiratory Apparatus

Info

Publication number
GB1192378A
GB1192378A GB53251/66A GB5325166A GB1192378A GB 1192378 A GB1192378 A GB 1192378A GB 53251/66 A GB53251/66 A GB 53251/66A GB 5325166 A GB5325166 A GB 5325166A GB 1192378 A GB1192378 A GB 1192378A
Authority
GB
United Kingdom
Prior art keywords
gas
valve
patient
pressure
reservoir
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
GB53251/66A
Inventor
Geoffrey Barnett Burchell
Richard William Victor Morel
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB53251/66A priority Critical patent/GB1192378A/en
Priority to US671810A priority patent/US3672366A/en
Priority to FR125449A priority patent/FR1541584A/en
Priority to DE19671566576 priority patent/DE1566576A1/en
Publication of GB1192378A publication Critical patent/GB1192378A/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
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/208—Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
    • 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
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/201—Controlled valves
    • A61M16/207—Membrane valves with pneumatic amplification stage, i.e. having master and slave membranes
    • 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
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/208—Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
    • A61M16/209—Relief valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2544—Supply and exhaust type

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Emergency Medicine (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)
  • Devices For Medical Bathing And Washing (AREA)

Abstract

1,192,378. Respiratory apparatus. G. B. BURCHELL 'and R. W. V. MOREL. 28 Nov., 1967 [28 Nov., 1966], No. 53251/66. Heading A5T. [Also in Division F2] Respiration apparatus comprises a supply 30 of gas at a high positive pressure connected to a means 21, 22 which is arranged to emit the high pressure gas intermittently, there being a valve device (Figure 1) connected to the means and serving to reduce the gas from the high positive pressure to a low positive pressure, and a conduit connected downstream of the valve device for leading the low pressure 'gas towards a patient or towards a space between a breathing bag and a casing surrounding the bag. As shown in Figure 4, the high pressure gas supply 30 is connected through a double acting piston valve 31 and an adjustable throttle 33 to the inlet 2 (Figure 1) of a pressure reducing valve device i having an outlet 9 leading towards the patient. The apparatus also includes spring loaded relay valves 36, 38 connected to gas supply points 37, 39, to reservoirs; 35, 40, and to 'the control chambers of the piston valve 31. In operation, gas is supplied to the patient through conduit 32 " until 'suffifficient pressure has built up in the reservoir 35 to 'operate the valve 36 to produce a change-over of the valve 31 allowing the patient to exhale. Subsequently the pressure in the reservoir 40 increases so that the valve 38 operates to charge-over the valve 31 and the patient reverts to forced inhalation. In an alternative embodiment the apparatus comprises (Figure 3, not shown) the gas supply (20) connected through an adjustable throttle (21) and a reservoir (22) 'to the valve device (which may be in one housing with the reservoir), the gas being arranged to pass into the reservoir more slowly than it leaves so that due to the action of the valve device an intermittent flow results. Further 'embodiments (Figures 5, 6, and 7, not shown) also comprise valves which interrupt the supply to the patient according as reservoirs connected to the valves fill and empty.
GB53251/66A 1966-11-28 1966-11-28 Improvements in or relating to Respiratory Apparatus Expired GB1192378A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB53251/66A GB1192378A (en) 1966-11-28 1966-11-28 Improvements in or relating to Respiratory Apparatus
US671810A US3672366A (en) 1966-11-28 1967-09-29 Valve and circuit for intermittent positive pressure breathing apparatus
FR125449A FR1541584A (en) 1966-11-28 1967-10-23 Pneumatic device, especially for breathing apparatus
DE19671566576 DE1566576A1 (en) 1966-11-28 1967-11-28 Valve device for ventilators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB53251/66A GB1192378A (en) 1966-11-28 1966-11-28 Improvements in or relating to Respiratory Apparatus

Publications (1)

Publication Number Publication Date
GB1192378A true GB1192378A (en) 1970-05-20

Family

ID=10467140

Family Applications (1)

Application Number Title Priority Date Filing Date
GB53251/66A Expired GB1192378A (en) 1966-11-28 1966-11-28 Improvements in or relating to Respiratory Apparatus

Country Status (3)

Country Link
US (1) US3672366A (en)
DE (1) DE1566576A1 (en)
GB (1) GB1192378A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3762408A (en) * 1971-11-11 1973-10-02 British Oxygen Co Ltd Ventilators
GB1511233A (en) * 1974-06-04 1978-05-17 Pneupac Ltd Gas valve mechanisms
US4774941A (en) * 1983-05-04 1988-10-04 Intertech Resources Inc. Resuscitator bag
US4510967A (en) * 1983-06-20 1985-04-16 Kdi American Products, Inc. Anti-backflow valve for therapy tubs and the like
US4595004A (en) * 1984-09-17 1986-06-17 Kurt Czech Apparatus for the treatment of the lungs of humans or animals
GB9000371D0 (en) * 1990-01-08 1990-03-07 Neotronics Medical Ltd Breathing apparatus
EP1920718A1 (en) * 1995-04-20 2008-05-14 ACIST Medical Systems, Inc. Radiographic contrast material injector
US5749358A (en) * 1996-10-10 1998-05-12 Nellcor Puritan Bennett Incorporated Resuscitator bag exhaust port with CO2 indicator
US6516800B1 (en) * 2000-08-25 2003-02-11 O-Two Systems International Inc. Neonatal patient ventilator circuit
US6792947B1 (en) * 2000-08-25 2004-09-21 O-Two Systems International Inc. Flow control valve for manual resuscitator devices
EP2942075A1 (en) * 2014-05-07 2015-11-11 Mindray Medical Sweden AB Device and method for a low resistance valve

Also Published As

Publication number Publication date
DE1566576A1 (en) 1970-04-30
US3672366A (en) 1972-06-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees
427A Application made for restoration (sect. 27/1949)
427C Application for amendment of specification now open to opposition (sect. 27/1949)
427B Order made restoring the patent (sect. 27/1949)
PCNP Patent ceased through non-payment of renewal fee