GB1335187A - Pressure alternating device for automatic lung ventilator actuation - Google Patents

Pressure alternating device for automatic lung ventilator actuation

Info

Publication number
GB1335187A
GB1335187A GB5525170A GB5525170A GB1335187A GB 1335187 A GB1335187 A GB 1335187A GB 5525170 A GB5525170 A GB 5525170A GB 5525170 A GB5525170 A GB 5525170A GB 1335187 A GB1335187 A GB 1335187A
Authority
GB
United Kingdom
Prior art keywords
valve
duct
chamber
nov
lung ventilator
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
GB5525170A
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
Publication of GB1335187A publication Critical patent/GB1335187A/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
    • A61M16/0057—Pumps therefor
    • 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
    • A61M16/0009—Accessories therefor, e.g. sensors, vibrators, negative pressure with sub-atmospheric pressure, e.g. during expiration
    • 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
    • A61M16/0063—Compressors
    • 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
    • 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
    • A61M16/202—Controlled valves electrically actuated
    • 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
    • A61M16/206—Capsule valves, e.g. mushroom, membrane valves

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)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Percussion Or Vibration Massage (AREA)

Abstract

1335187 Valves G FUMAGALLI 20 Nov 1970 [21 Nov 1969] 55251/70 Heading F2V [Also in Division A5] An actuator, for a lung ventilator having a variable pressure chamber (22), Fig. 1 (not shown), within which is an expandible bag (24) connected via non-return valves to a patient and to a breathing gas source, includes means for alternatingly subjecting the interior of said chamber (22) to positive and negative air pressure, said means comprising a duct 52, Fig. 2, for connecting an adjustable speed pumping assembly to chamber (22) and communicating with a venting valve Va, Fig. 4, having a valve member 112 movable against a biasing force' which decreases as the cross-sectional area of the valve opening 129 increases, to open the valve at a predetermined negative pressure in duct 52. The valve member 112, Fig. 4, has a valve seat 111 towards which it is biased by an electromagnet having a winding 125 and an adjustable core 126 acting on a ferrous disc 122 secured to a sealing diaphragm 119. The spaces above diaphragm 119 and below member 112 are vented to atmosphere and the space 113 therebetween communicates via a duct 116 with a duct 52. The core 126 is adjusted so that the biasing force on the member 112 varies according to the second power of the spacing of member 112 from seat 111 for attaining a nearly constant resistance to air flow through opening 129 at differing rates and speeds of flow.
GB5525170A 1969-11-21 1970-11-20 Pressure alternating device for automatic lung ventilator actuation Expired GB1335187A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2472569 1969-11-21

Publications (1)

Publication Number Publication Date
GB1335187A true GB1335187A (en) 1973-10-24

Family

ID=11214531

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5525170A Expired GB1335187A (en) 1969-11-21 1970-11-20 Pressure alternating device for automatic lung ventilator actuation

Country Status (6)

Country Link
US (1) US3658443A (en)
AT (1) AT307188B (en)
CH (1) CH517494A (en)
DE (1) DE2057710A1 (en)
FR (1) FR2068581B1 (en)
GB (1) GB1335187A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2289319A (en) * 1994-05-09 1995-11-15 Balzers Hochvakuum Flow control valve

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2122287B1 (en) * 1971-01-18 1974-02-15 Inst Nat Sante Rech Med
CH599786A5 (en) * 1975-10-24 1978-05-31 Hoffmann La Roche
US5862802A (en) * 1981-04-03 1999-01-26 Forrest M. Bird Ventilator having an oscillatory inspiratory phase and method
IT1139467B (en) * 1981-09-22 1986-09-24 Soxil Spa ARTIFICIAL PULMONARY VENTILATION EQUIPMENT IN ANESTHESIA AND RESUSCITATION
US4941469A (en) * 1987-11-12 1990-07-17 Carmeli Adahan Portable ventilator apparatus
US5086767A (en) * 1990-09-26 1992-02-11 Canadian Aging & Rehabilitation Product Development Corporation Ventilator for assisting the breathing of a patient
DE4312276C2 (en) * 1993-04-15 1995-09-07 Westfalia Separator Ag Pilot valve
DE4429561A1 (en) * 1994-08-19 1996-02-22 Mueller & Sebastiani Elek Gmbh Lung function analysis device
US6182656B1 (en) 1997-11-14 2001-02-06 Ovadia Sagiv Device and method for transforming a unidirectional flow into an oscillating flow employed in an artificial respiration system
AUPP826999A0 (en) * 1999-01-21 1999-02-11 Resmed Limited A mounting arrangement
US7527053B2 (en) * 2003-08-04 2009-05-05 Cardinal Health 203, Inc. Method and apparatus for attenuating compressor noise
EP1653905B1 (en) * 2003-08-04 2016-06-15 Carefusion 203, Inc. Portable ventilator system
US20050112013A1 (en) * 2003-08-04 2005-05-26 Pulmonetic Systems, Inc. Method and apparatus for reducing noise in a roots-type blower
US8156937B2 (en) * 2003-08-04 2012-04-17 Carefusion 203, Inc. Portable ventilator system
US7607437B2 (en) * 2003-08-04 2009-10-27 Cardinal Health 203, Inc. Compressor control system and method for a portable ventilator
US8118024B2 (en) 2003-08-04 2012-02-21 Carefusion 203, Inc. Mechanical ventilation system utilizing bias valve
US7997885B2 (en) * 2007-12-03 2011-08-16 Carefusion 303, Inc. Roots-type blower reduced acoustic signature method and apparatus
US8888711B2 (en) * 2008-04-08 2014-11-18 Carefusion 203, Inc. Flow sensor
CN111330127A (en) * 2020-04-09 2020-06-26 张京玮 Pneumonia treatment device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2478568A (en) * 1946-03-08 1949-08-09 Harrison S Coe Pumping apparatus
US2582210A (en) * 1949-07-05 1952-01-08 E & J Mfg Co Apparatus for positive respiration during gas anesthesia

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2289319A (en) * 1994-05-09 1995-11-15 Balzers Hochvakuum Flow control valve
GB2289319B (en) * 1994-05-09 1998-01-21 Balzers Hochvakuum Vacuum valves

Also Published As

Publication number Publication date
FR2068581B1 (en) 1973-02-02
US3658443A (en) 1972-04-25
DE2057710A1 (en) 1971-06-03
CH517494A (en) 1972-01-15
AT307188B (en) 1973-05-10
FR2068581A1 (en) 1971-08-27

Similar Documents

Publication Publication Date Title
GB1335187A (en) Pressure alternating device for automatic lung ventilator actuation
US4089623A (en) Compressor intake control
GB1497150A (en) Valve unit for braking pressure control in wheeled vehicles
GB1427433A (en) Valves for anesthesia rebreathing apparatus
ES453962A1 (en) Pilot controlled membrane valve
ES432250A1 (en) Anti-contaminant diaphragm valve
GB1382404A (en) Demand valve assembly
GB1283770A (en) Relief valve
GB1186336A (en) Fluid Pressure Actuated Diaphragm Pump
JPS571881A (en) Proportional flow control valve
GB1322889A (en) Speed governor
GB1373148A (en) Positive and negative pressure responsive reservoir breather
GB957118A (en) Improvements in or relating to apparatus for vacuum control
GB1344101A (en) Breathing valve
GB1524661A (en) Vacuum generator
GB1007138A (en) Improvements in or relating to fluid flow control valves
US4202524A (en) Valve positioner and method of making the same
US2875784A (en) Three-way solenoid valve
GB1534435A (en) Pressure control system
GB922644A (en) Improvements in or relating to fluid pressure controllers
GB1400430A (en) Valve assemblies
GB905345A (en) Control valve
GB1480803A (en) Pressure regulator for pneumatic systems
GB1432022A (en) Surge control for a compressor
GB1279953A (en) Brake balancing valve arrangement

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees