US3396723A - Breathing apparatus with periodic volume change - Google Patents

Breathing apparatus with periodic volume change Download PDF

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Publication number
US3396723A
US3396723A US535233A US53523366A US3396723A US 3396723 A US3396723 A US 3396723A US 535233 A US535233 A US 535233A US 53523366 A US53523366 A US 53523366A US 3396723 A US3396723 A US 3396723A
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United States
Prior art keywords
bag
pressure
breathing
breathing apparatus
patient
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Expired - Lifetime
Application number
US535233A
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English (en)
Inventor
Klaus Freytag
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Individual
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Individual
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Publication of US3396723A publication Critical patent/US3396723A/en
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    • 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. ventilators; 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. ventilators; 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. ventilators; Tracheal tubes
    • A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes operated by electrical means
    • 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. ventilators; 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. ventilators; Tracheal tubes
    • A61M16/0057—Pumps therefor
    • A61M16/0075—Bellows-type

Definitions

  • This invention relates to a breathing apparatus and in particular to a breathing apparatus for forcing a deep breath into the lungs of a person.
  • a conventional breathing apparatus is used to force air into the lungs of a patient at predetermined intervals and for drawing air out of the lungs during intervening intervals.
  • Such an apparatus has a housing containing a breathing bag and the pressure in the housing is alternately changed from greater than to less than atmospheric pressure in order to compress and expand the bag.
  • An adjustable stop is used to limit the maximum expansion of the bag.
  • Atelectasis that is lung collapse, can occur during the continuous breathing with such apparatus because the breathing cycle is very uniform.
  • the stop for limiting the maximum expansion of the breathing bag is adjustable and held under constant spring pressure.
  • a stop tongue means actuated by a means for counting the cycles of greater than and less than atmospheric pressure applied to the bag engages the stop and can be unlocked for adjusting the position of the stop.
  • a deep breath can be produced after a predetermined number of breathing cycles. This is because the tongue means can be disengaged from the stop from time to time so that the breathing bag can expand more than it did through the preceding breathing cycles so that a larger amount of air is forced into the lungs of the patient and the lungs are inflated by a deep breath.
  • the drawing illustrates a breathing apparatus in which the air forced into the lungs is spontaneously exhaled.
  • the invention can be applied to a breathing apparatus which not only forces air into the lungs but withdraws air from the lungs.
  • Air is supplied to the patient through the pipe 1 in the direction of the arrow 2.
  • Pipe 1 is connected by way of a check valve 3 to a T-joint 4.
  • This T-joint is also connected to a pipe 5 leading to the atmosphere by way of check valve 6.
  • Valves 3 and 6 open in the same direction.
  • a third pipe 7 of the T-joint 4 leads to the breathing bag 8 in the form of an accordion bellows and which is contained within housing 9. This housing is closed on all sides and forms a chamber 10 which is connected by pipe 11 with the air pressure generator 12, not shown in detail.
  • Stop plate 14 produces in predetermined and controlled cycles alternate greater than and less than atmospheric pressures.
  • the bottom of bag 8 contacts but is not joined to stop plate 14.
  • This plate is connected to a rod 15 having a notch 16 and is urged toward membrane 18 by 3,396,723 Patented Aug. 13, 1968 spring 17.
  • the position of stop plate 14 can be adjustable to change the breathing volume at any given time.
  • the membrane 18 is connected to pipe 11. This membrane is attached by a pivot joint 19 to a pawl 20 which engages ratchet 21.
  • Ratchet 21 carries a cam 22 and is kept from freely rotating by leaf spring 23 which engages the ratchet teeth.
  • cam 22 moves to contact electrical switch 24 for actuating a solenoid 25.
  • Locking tongue 26 is joined to the armature of the solenoid and, as shown in the drawing, is normally held in the notch 16 by the pressure of spring 27.
  • the alternating pressures produced by generator 12 are transmitted to membrane 18 which is moved back and forth. Such movement intermittently moves ratchet 21 by pawl 20. Therefore, the switch 24 is contacted by cam 22 after a predetermined number of steps.
  • the number of pressure cycles following which a deep breath is to be produced can be adjusted as desired.
  • a breathing apparatus comprising a housing, a breathing bag in said housing, pressure means for putting said bag under greater than or less than atmospheric pressure to expand or contract said bag, movable stop means for limiting the normal maximum expansion of said bag, pressure counting means for releasing said stop means after a predetermined number of greater than atmospheric pressures applied to said bag so that said bag is expanded to more than said maximum expansion during a following less than atmospheric pressure on said bag, and means for communicating said bag with a patient so that a deep breath is periodically forced into the lungs of the patient.
  • said stop means compnsing a stop plate engageable with said bag, a rod jolned to said plate, a notch in said rod, and tongue means actuatable by said pressure counting means fo engaging said notch.
  • a breathing apparatus as in claim 2 further com- Prlslng ng means responsive to the pressure changes on said bag for actuating said pressure counting means.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Emergency Medicine (AREA)
  • Hematology (AREA)
  • Pulmonology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
US535233A 1965-03-20 1966-03-17 Breathing apparatus with periodic volume change Expired - Lifetime US3396723A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DED0046854 1965-03-20
FR52866 1966-03-10

Publications (1)

Publication Number Publication Date
US3396723A true US3396723A (en) 1968-08-13

Family

ID=25972082

Family Applications (1)

Application Number Title Priority Date Filing Date
US535233A Expired - Lifetime US3396723A (en) 1965-03-20 1966-03-17 Breathing apparatus with periodic volume change

Country Status (5)

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US (1) US3396723A (enrdf_load_html_response)
DE (1) DE1251913B (enrdf_load_html_response)
FR (1) FR1553667A (enrdf_load_html_response)
GB (1) GB1076990A (enrdf_load_html_response)
SE (1) SE315364B (enrdf_load_html_response)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599633A (en) * 1969-04-07 1971-08-17 Puritan Bennett Corp Volume-limited ventilator with compliance compensator
US3913576A (en) * 1973-11-06 1975-10-21 Westinghouse Electric Corp Breathing apparatus
US3916890A (en) * 1972-11-04 1975-11-04 H G East & Company Limited Autovent field ventilator
US20030015199A1 (en) * 2001-07-20 2003-01-23 Fuhrman Bradley P. Device and method of isolating bias flow
US20030145228A1 (en) * 2002-01-31 2003-07-31 Janne Suuronen System and method of providing virus protection at a gateway
US20030145855A1 (en) * 1999-08-03 2003-08-07 Fuhrman Bradley P. Device and method of reducing bias flow in oscillatory ventilators
RU2219892C1 (ru) * 2002-10-24 2003-12-27 Зао "Вниимп-Вита" Аппарат искусственной вентиляции легких
US20040003808A1 (en) * 2002-06-28 2004-01-08 Fuhrman Bradley P. Therapeutic agent delivery device and method
US20110120472A1 (en) * 2007-09-07 2011-05-26 Galemed Corporation Adjustable volume manual resuscitation bag assembly
US20140090647A1 (en) * 2007-08-22 2014-04-03 The Research Foundation for the State University o Breathing-Gas Delivery And Sharing System And Method
US8985107B2 (en) 2012-02-28 2015-03-24 General Electric Company Method, arrangement and computer program product for respiratory gas monitoring of ventilated patients

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3015287A1 (de) * 1980-04-21 1981-10-22 Siemens AG, 1000 Berlin und 8000 München Lungenbeatmungsgeraet

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2414747A (en) * 1942-07-02 1947-01-21 Harry M Kirschbaum Method and apparatus for controlling the oxygen content of the blood of living animals
US2770231A (en) * 1954-08-18 1956-11-13 Smith Welding Equipment Corp Respirator system
US2969789A (en) * 1956-03-23 1961-01-31 Morch Ernst Trier Respirator
US2972345A (en) * 1955-10-26 1961-02-21 Spigel Robert Respirator
US3033196A (en) * 1957-09-16 1962-05-08 Air Reduction Artificial respiration apparatus
US3033195A (en) * 1957-09-16 1962-05-08 Air Reduction Respirator apparatus and method
US3068857A (en) * 1958-11-19 1962-12-18 British Oxygen Co Ltd Apparatus for controlling or assisting respiration
US3251359A (en) * 1963-04-25 1966-05-17 Ismach Aaron Automatic intermittent positive pressure ventilators

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2414747A (en) * 1942-07-02 1947-01-21 Harry M Kirschbaum Method and apparatus for controlling the oxygen content of the blood of living animals
US2770231A (en) * 1954-08-18 1956-11-13 Smith Welding Equipment Corp Respirator system
US2972345A (en) * 1955-10-26 1961-02-21 Spigel Robert Respirator
US2969789A (en) * 1956-03-23 1961-01-31 Morch Ernst Trier Respirator
US3033196A (en) * 1957-09-16 1962-05-08 Air Reduction Artificial respiration apparatus
US3033195A (en) * 1957-09-16 1962-05-08 Air Reduction Respirator apparatus and method
US3068857A (en) * 1958-11-19 1962-12-18 British Oxygen Co Ltd Apparatus for controlling or assisting respiration
US3251359A (en) * 1963-04-25 1966-05-17 Ismach Aaron Automatic intermittent positive pressure ventilators

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599633A (en) * 1969-04-07 1971-08-17 Puritan Bennett Corp Volume-limited ventilator with compliance compensator
US3916890A (en) * 1972-11-04 1975-11-04 H G East & Company Limited Autovent field ventilator
US3913576A (en) * 1973-11-06 1975-10-21 Westinghouse Electric Corp Breathing apparatus
US20030145855A1 (en) * 1999-08-03 2003-08-07 Fuhrman Bradley P. Device and method of reducing bias flow in oscillatory ventilators
US7007693B2 (en) 1999-08-03 2006-03-07 The Research Foundatilon Of State University Of New York Device and method of reducing bias flow in oscillatory ventilators
JP2004538057A (ja) * 2001-07-20 2004-12-24 ザ　リサーチ　ファウンデイション　オブ　ステイト　ユニバーシティー　オブ　ニューヨーク バイアス流を分離するための装置および方法
EP1409054A4 (en) * 2001-07-20 2009-07-08 Univ New York State Res Found DEVICE AND METHOD FOR INSULATING THE VOLTAGE FLOW
US6675799B2 (en) * 2001-07-20 2004-01-13 The Research Foundation Of State University Of New York Device and method of isolating bias flow
WO2003008017A3 (en) * 2001-07-20 2004-01-22 Univ New York State Res Found Device and method of isolating bias flow
US20030015199A1 (en) * 2001-07-20 2003-01-23 Fuhrman Bradley P. Device and method of isolating bias flow
US9392002B2 (en) 2002-01-31 2016-07-12 Nokia Technologies Oy System and method of providing virus protection at a gateway
US20030145228A1 (en) * 2002-01-31 2003-07-31 Janne Suuronen System and method of providing virus protection at a gateway
US7367335B2 (en) 2002-06-28 2008-05-06 The Research Foundation Of State University Of New York Therapeutic agent delivery device and method
US20040003808A1 (en) * 2002-06-28 2004-01-08 Fuhrman Bradley P. Therapeutic agent delivery device and method
RU2219892C1 (ru) * 2002-10-24 2003-12-27 Зао "Вниимп-Вита" Аппарат искусственной вентиляции легких
US20140090647A1 (en) * 2007-08-22 2014-04-03 The Research Foundation for the State University o Breathing-Gas Delivery And Sharing System And Method
US10112023B2 (en) * 2007-08-22 2018-10-30 The Research Foundation For The State University Of New York Breathing-gas delivery and sharing system and method
US20110120472A1 (en) * 2007-09-07 2011-05-26 Galemed Corporation Adjustable volume manual resuscitation bag assembly
US8443804B2 (en) * 2007-09-07 2013-05-21 Galerned Corporation Adjustable volume manual resuscitation bag assembly
US8985107B2 (en) 2012-02-28 2015-03-24 General Electric Company Method, arrangement and computer program product for respiratory gas monitoring of ventilated patients

Also Published As

Publication number Publication date
DE1251913B (de) 1967-10-12
SE315364B (enrdf_load_html_response) 1969-09-29
GB1076990A (en) 1967-07-26
FR1553667A (enrdf_load_html_response) 1969-01-17

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