US3474785A - Intermittent positive pressure resuscitator - Google Patents

Intermittent positive pressure resuscitator Download PDF

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Publication number
US3474785A
US3474785A US610374A US3474785DA US3474785A US 3474785 A US3474785 A US 3474785A US 610374 A US610374 A US 610374A US 3474785D A US3474785D A US 3474785DA US 3474785 A US3474785 A US 3474785A
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US
United States
Prior art keywords
valve
conduit
gas
inhalation
breathing
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 - Lifetime
Application number
US610374A
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English (en)
Inventor
Bernt I Jansson
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AGA AB
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AGA AB
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Filing date
Publication date
Application filed by AGA AB filed Critical AGA AB
Application granted granted Critical
Publication of US3474785A publication Critical patent/US3474785A/en
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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00—Respiratory apparatus
    • 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
    • A61M16/06—Respiratory or anaesthetic masks

Definitions

  • a regulator valve responds to variations of gas pressure in the inhalation conduit to control communication of the latter with the source of pressurized breathing gas, and a relief or safety valve prevents gas pressure in the inhalation conduit from exceeding a predetermined value, so as to avoid hindering the users exhalation by a residual gas pressure acting against the exhalation valve.
  • the invention relates to a breathing apparatus for applying gas from a gas container, and of the type comprising a breathing mask, a multi-way valve connected to the breathing mask for enabling expiration to the surrounding atmosphere and inspiration through an inflate conduit connected to the multi-way valve, a reservoir connected to the inflate conduit and having a device for creating an overpressure as well as an inhalation conduit emerging into the inflate conduit.
  • a breathing apparatus of this type can easily be applied to a person who is in need of artificial respiration, overpressure being supplied from the reservoir for forced inspiration and the patient breathing out to the surrounding atmosphere through the multi-way valve. If the victim breathes spontaneously, this is possible without the necessity of taking 011 the apparatus.
  • this apparatus has the disadvantage that, if the person in question is in an atmosphere which is not breathable, he must first be transported to fresh air before artificial respiration can be performed.
  • the invention has for its object to remove this disadvantage in an apparatus of the type referred to and is characterized by a nonreturn valve provided in the orifice of the inhalation conduit, a regulator connected with the inhalation conduit and having a safety valve, and a supply conduit connected with the regulator and having fittings for coupling to a gas container.
  • draw- Reference 1 designates a breathing mask, which is con nected via a multi-way valve and an inflate conduit 3 with a reservoir 4 in the form of a compressible and selfexpanding rubber 'bag.
  • Multi-way valve 2 is of known construction and has a 3,474,785 Patented Oct. 28, 1969 flexible valve disc 5 resting in its inoperative position on an inner valve seat 6 as well as an outer valve seat 7.
  • Valve seat 6 belongs to a conduit 8 which leads to the surrounding air via a nonreturn valve 9.
  • inhalation conduit 11 is connected with a regulator 12 of a 'kind known per se and which is controlled by the breathing pressure and which actuates a valve 15 in response to a subpressure in the inhalation conduit 11 via a membrane 13 and a lever 14, thereby causing gas to be supplied from a supply tube 16.
  • the regulator 12 has a relief or safety valve 13a for ensuring that gas pressure in the conduit 11 never arises above a predetermined value, in order to preclude the possibility of a residual blocking pressure acting on the underside of the valve disc 5, which would hinder the patients exhalation.
  • Tube 16 terminates in a fitting 17 for coupling to a gas container, by means of which the rescuer can supply breathing gas from the container carried by him.
  • a detachable coupling 18 is provided between the inhalation conduit and regulator 12, as indicated in the drawing.
  • nonreturn valve 9 makes such inhalation impossible.
  • the regulator can be disconnected at 18 and both spontaneous breathing and artificial respiration can take place direct from the surrounding atmosphere in analogy with what was described under (1) and (2).
  • Respiratory apparatus comprising a breathing mask; a multi-way valve having an expiration outlet branch,
  • an inlet branch a branch connected to said mask, and a pressure responsive valve member for alternately communicating the mask branch with the inlet branch or the outlet branch in response to pressure imbalances on the valve member; an inhalation conduit communicating with said inlet branch; 9. non-return valve in said inhalation conduit permitting flow therethrough toward said inlet branch; gas reservoir means communicating with said inhalation conduit downstream of said nonreturn valve and with said inlet branch for selectively compressing gas received from said inhalation conduit through said nonreturn valve; a regulator device connected to said inhalation conduit and adapted to interconnect a source of pressurized breathing gas, said regulator device comprising regulator valve means responsive to variations of gas pressure in said inhalation conduit to control communication of the latter with the source of pressurized breathing gas; and safety valve means communicating with said inhalation conduit for preventing gas pressure in said inhalation conduit from exceeding a predetermined value.
  • Apparatus as claimed in claim 1 further including a releasable coupling'between said regulator device and said inhalation conduit.
  • said regulator device includes a diaphragm responsive to gas pressures in said inhalation conduit, and said safety valve means is mounted on said diaphragm to normally close apertures extending therethrough, and to open said apertures so as to reduce the pressure in said inhalation con- 5 duit when the pressure therein exceeds a predetermined value, so as to prevent any such excess pressure from acting on said pressure responsive valve member in said multi-way valve.

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  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Hematology (AREA)
  • Emergency Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
US610374A 1966-02-15 1967-01-19 Intermittent positive pressure resuscitator Expired - Lifetime US3474785A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1897/66A SE309468B (fi) 1966-02-15 1966-02-15

Publications (1)

Publication Number Publication Date
US3474785A true US3474785A (en) 1969-10-28

Family

ID=20259027

Family Applications (1)

Application Number Title Priority Date Filing Date
US610374A Expired - Lifetime US3474785A (en) 1966-02-15 1967-01-19 Intermittent positive pressure resuscitator

Country Status (10)

Country Link
US (1) US3474785A (fi)
CH (1) CH443926A (fi)
DE (1) DE1566560B2 (fi)
DK (1) DK111943B (fi)
FI (1) FI44681C (fi)
FR (1) FR1510368A (fi)
GB (1) GB1126600A (fi)
GR (1) GR33333B (fi)
NO (1) NO116724B (fi)
SE (1) SE309468B (fi)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882860A (en) * 1972-04-12 1975-05-13 Frimberger Eckart Reanimation device
US3978854A (en) * 1975-04-08 1976-09-07 Lif-O-Gen, Inc. Demand regulator
US3993059A (en) * 1973-11-13 1976-11-23 Aga Aktiebolag Device for ventilating a patient
US4037595A (en) * 1974-04-11 1977-07-26 Elam James O Breathing equipment such as resuscitators
US4572175A (en) * 1983-07-20 1986-02-25 Flynn Stephen D Multi-mode demand valve
US5140982A (en) * 1986-07-07 1992-08-25 Jack Bauman Resuscitator
US5537998A (en) * 1987-01-14 1996-07-23 Bauman; Jack Emergency manual resuscitator with means for detecting air pressure

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ302127B6 (cs) * 2003-01-22 2010-11-03 Univerzita Karlova, 3.Lékarská Fakulta Zarízení k provádení vysokofrekvencní objemove rízené umelé plicní ventilace
CN103157163A (zh) * 2011-12-19 2013-06-19 杭州新颖氧舱有限公司 活塞式手持与三通管一体呼吸调节器
CN106798959A (zh) * 2017-02-28 2017-06-06 青岛市中心医院 一种用于心血管内科的呼吸装置
CN113577487A (zh) * 2021-06-20 2021-11-02 三河科达实业有限公司 适用于高寒环境的便携式通用生命支持系统专用呼吸面罩

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE197254C (fi) *
GB216459A (en) * 1923-12-15 1924-05-29 George Little Brown A portable breathing apparatus primarily intended for use in foul atmospheres, but applicable also for use in fresh air
GB533297A (en) * 1939-08-08 1941-02-11 Robert Henry Davis Improvements relating to apparatus for use in artificial respiration
US2399643A (en) * 1943-04-10 1946-05-07 Kreiselman Joseph Resuscitator
GB910065A (en) * 1961-04-06 1962-11-07 Edouard Paul Victor Raoul Gode Improvements in or relating to respiratory valves
US3158152A (en) * 1960-09-16 1964-11-24 Sierra Engineering Company Mouth to mouth resuscitator
US3208449A (en) * 1964-05-07 1965-09-28 Jr Roscoe G Bartlett Compact walk-around rebreathing device
US3262446A (en) * 1963-11-18 1966-07-26 Air Shields Resuscitator
US3327704A (en) * 1964-08-12 1967-06-27 Jr Roscoe G Bartlett Mask-to-mask resuscitation systems
US3366133A (en) * 1963-12-12 1968-01-30 Aga Ab Arrangement in breathing apparatus

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE197254C (fi) *
GB216459A (en) * 1923-12-15 1924-05-29 George Little Brown A portable breathing apparatus primarily intended for use in foul atmospheres, but applicable also for use in fresh air
GB533297A (en) * 1939-08-08 1941-02-11 Robert Henry Davis Improvements relating to apparatus for use in artificial respiration
US2399643A (en) * 1943-04-10 1946-05-07 Kreiselman Joseph Resuscitator
US3158152A (en) * 1960-09-16 1964-11-24 Sierra Engineering Company Mouth to mouth resuscitator
GB910065A (en) * 1961-04-06 1962-11-07 Edouard Paul Victor Raoul Gode Improvements in or relating to respiratory valves
US3262446A (en) * 1963-11-18 1966-07-26 Air Shields Resuscitator
US3366133A (en) * 1963-12-12 1968-01-30 Aga Ab Arrangement in breathing apparatus
US3208449A (en) * 1964-05-07 1965-09-28 Jr Roscoe G Bartlett Compact walk-around rebreathing device
US3327704A (en) * 1964-08-12 1967-06-27 Jr Roscoe G Bartlett Mask-to-mask resuscitation systems

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882860A (en) * 1972-04-12 1975-05-13 Frimberger Eckart Reanimation device
US3993059A (en) * 1973-11-13 1976-11-23 Aga Aktiebolag Device for ventilating a patient
US4037595A (en) * 1974-04-11 1977-07-26 Elam James O Breathing equipment such as resuscitators
US3978854A (en) * 1975-04-08 1976-09-07 Lif-O-Gen, Inc. Demand regulator
US4572175A (en) * 1983-07-20 1986-02-25 Flynn Stephen D Multi-mode demand valve
US5140982A (en) * 1986-07-07 1992-08-25 Jack Bauman Resuscitator
US5537998A (en) * 1987-01-14 1996-07-23 Bauman; Jack Emergency manual resuscitator with means for detecting air pressure

Also Published As

Publication number Publication date
DE1566560A1 (de) 1970-01-08
FR1510368A (fr) 1968-01-19
CH443926A (de) 1967-09-15
GB1126600A (en) 1968-09-05
DK111943B (da) 1968-10-21
FI44681C (fi) 1971-12-10
DE1566560B2 (de) 1978-12-14
FI44681B (fi) 1971-08-31
GR33333B (el) 1967-11-23
SE309468B (fi) 1969-03-24
NO116724B (fi) 1969-05-12

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