GB1212529A - Improvements in or relating to mechanical ventilators for the lungs - Google Patents

Improvements in or relating to mechanical ventilators for the lungs

Info

Publication number
GB1212529A
GB1212529A GB7630/68A GB763068A GB1212529A GB 1212529 A GB1212529 A GB 1212529A GB 7630/68 A GB7630/68 A GB 7630/68A GB 763068 A GB763068 A GB 763068A GB 1212529 A GB1212529 A GB 1212529A
Authority
GB
United Kingdom
Prior art keywords
gas
bellows
valve
patient
diaphragm
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
GB7630/68A
Inventor
Forrest Morton Bird
Henry Louis Pohndorf
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 GB1212529A publication Critical patent/GB1212529A/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
    • A61M16/0081—Bag or bellow in a bottle
    • 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
    • A61M16/0057—Pumps therefor
    • A61M16/0075—Bellows-type

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)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

1,212,529. Artificial respiration. F. M. BIRD and H. L. POHNDORF. 16 Feb., 1968 [28 Feb., 1967], No. 7630/68. Heading AST. A mechanical respiratory ventilator comprises an adapter 124 to supply gas to a patient and connected to a bellows 28, means for delivering gas to the bellows, means 91 for nebulizing the gas with a liquid, and means for causing the bellows to contract so as to force gas into the patient. The ventilator may also include means 37 for adjusting the size to which the bellows can be expanded so that a controlled tidal volume of gas is supplied to the patient. As shown, the ventilator comprises a control unit 51 which, while the patient breathes out through the adapter 124 and an exhalation valve 132, supplies oxygen (at a rate determined by an adjustment 90) through a line 88 and a nebulizer 91 into the expanding bellows 28. Air drawn in through a valve 107 may be added to the oxygen, and the nebulizer, which has a member 97 on which entrained liquid is broken into particles of 0.5 microns, may add water and optionally also a medicament to the breathing gas. A member 37, 43, which is adjustable in its position, limits the expansion of the bellows so that the volume of gas supplied to the patient may be pre-determined. The exhalation phase is concluded when gas pressure (under the control of a timer knob 62) moves a diaphragm 64 and member 66 so that the gas may reach a junction 71 and act on a diaphragm 69 to close a valve 86 in the gas supply line 88. Inspiration is then caused by gas passing from the junction 71 through a line 138 and a venturi assembly 141 (where it is mixed with air) into the transparent calibrated canister 23 surrounding the bellows so that the bellows are forced to contract and expel gas to the patient. During inspiration, gas pressure through a line 138, 136 holds the exhalation valve 132 closed. Inspiration is concluded (under the control of a timer knob 73) when gas pressure on a diaphragm 76 opens a valve 82 to atmosphere so that the pressure on the diaphragm 64 is relieved and the valve member 66 closes allowing the valve 86 to reopen. A manometer 31 is provided.
GB7630/68A 1967-02-28 1968-02-16 Improvements in or relating to mechanical ventilators for the lungs Expired GB1212529A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61924067A 1967-02-28 1967-02-28

Publications (1)

Publication Number Publication Date
GB1212529A true GB1212529A (en) 1970-11-18

Family

ID=24481066

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7630/68A Expired GB1212529A (en) 1967-02-28 1968-02-16 Improvements in or relating to mechanical ventilators for the lungs

Country Status (3)

Country Link
US (1) US3530856A (en)
DE (1) DE1616190C3 (en)
GB (1) GB1212529A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2944492A1 (en) * 1979-11-03 1981-05-14 Drägerwerk AG, 2400 Lübeck Compact, mobile intensive care unit - comprises wheeled cabinet storing and supporting different medical appts. and including service supply points
GB2124909A (en) * 1982-08-05 1984-02-29 Klaus Lehmann Respirator suitable for positive pressure operation

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1361181A (en) * 1970-07-23 1974-07-24 Grogono A W Apparatus for delivering a predetermined volume of fluid at re gular intervals
FR2142628B1 (en) * 1971-06-22 1973-05-25 Minerve Sa
US3893458A (en) * 1974-03-07 1975-07-08 Nasa Heat sterilizable patient ventilator
FR2297639A1 (en) * 1975-01-20 1976-08-13 Minerve Sa VOLUMETRIC RESPIRATOR, IN PARTICULAR FOR ASSISTED ANESTHESIA AND LONG-TERM RESUSCITATION
US4141354A (en) * 1977-03-04 1979-02-27 Aaron Ismach Ventilator system for controlling, assisting and monitoring a patient's breathing
US4186737A (en) * 1977-11-10 1980-02-05 Airco, Inc. Drug nebulizing system for medical ventilators of the volume-limited type
US4279250A (en) * 1977-11-10 1981-07-21 Airco, Inc. Drug nebulizing system for medical ventilators of the volume-limited type
SE470417B (en) * 1993-02-05 1994-02-21 Siemens Elema Ab Method for fresh gas supply for manual ventilation and a fan system for carrying out the method
US5666945A (en) * 1995-06-07 1997-09-16 Salter Labs Pneumatically-operated gas demand apparatus
TW317509B (en) * 1995-10-31 1997-10-11 Sanyo Electric Co
SE9704300D0 (en) * 1997-11-20 1997-11-20 Siemens Elema Ab Gas pressure generator
US7971588B2 (en) 2000-05-05 2011-07-05 Novartis Ag Methods and systems for operating an aerosol generator
US7600511B2 (en) * 2001-11-01 2009-10-13 Novartis Pharma Ag Apparatus and methods for delivery of medicament to a respiratory system
US8336545B2 (en) 2000-05-05 2012-12-25 Novartis Pharma Ag Methods and systems for operating an aerosol generator
WO2006050384A2 (en) * 2004-11-01 2006-05-11 Salter Labs System and method for conserving oxygen delivery while maintaining saturation
EP2190511B1 (en) * 2007-09-07 2012-12-19 Galemed Corporation Adjustable volume manual resuscitation bag assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2944492A1 (en) * 1979-11-03 1981-05-14 Drägerwerk AG, 2400 Lübeck Compact, mobile intensive care unit - comprises wheeled cabinet storing and supporting different medical appts. and including service supply points
GB2124909A (en) * 1982-08-05 1984-02-29 Klaus Lehmann Respirator suitable for positive pressure operation

Also Published As

Publication number Publication date
US3530856A (en) 1970-09-29
DE1616190A1 (en) 1971-03-04
DE1616190C3 (en) 1979-03-29
DE1616190B2 (en) 1978-08-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee
PCPE Delete 'patent ceased' from journal
PCNP Patent ceased through non-payment of renewal fee