GB882365A - Improvements in lung ventilating apparatus - Google Patents
Improvements in lung ventilating apparatusInfo
- Publication number
- GB882365A GB882365A GB40735/59A GB4073559A GB882365A GB 882365 A GB882365 A GB 882365A GB 40735/59 A GB40735/59 A GB 40735/59A GB 4073559 A GB4073559 A GB 4073559A GB 882365 A GB882365 A GB 882365A
- Authority
- GB
- United Kingdom
- Prior art keywords
- duct
- valve
- diaphragm
- pipe
- bellows
- 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
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
-
- 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
- A61M16/0081—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
- A61M16/0057—Pumps therefor
- A61M16/0075—Bellows-type
-
- 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
- A61M16/22—Carbon dioxide-absorbing devices ; Other means for removing carbon dioxide
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)
- Percussion Or Vibration Massage (AREA)
Abstract
882,365. Respiratory apparatus. AIR-SHIELDS Inc. Dec. 1, 1959 [Dec. 5, 1958], No. 40735/59. Class 81 (2). In forced breathing artificial respiration apparatus having automatic timing means, provision is made for immediately setting the apparatus to the positive pressure phase when the patient attempts to inhale. The timing device is shown in Fig. 2 and comprises a chamber 59 into which air or gas is fed from the main supply pipe 42, through a choke 55 and adjustable needle valve 68. When the internal pressure reaches a predetermined maximum its action on a diaphragm 58 opens a ball valve 61 so that the feed duct 54 is vented to atmosphere through an outlet 67. The chamber 59 is also vented through the duct 54 and its internal pressure leaks away past valve 68 until the spring 63 can again close valve 61, whereupon the cycle is repeated. The variations in pressure in the duct 54 are imposed on a diaphragm 51 and, during the time that valve 61 is closed, the diaphragm 51 is held down to close a ball valve 44 against its seating 46. However, while the duct 54 is vented to atmosphere, the diaphragm 51, and the ball 44, are raised by a spring 48 and the supply pipe 42 is connected to a further pipe 40 which communicates the pressurized supply to the breathing-equipment. In the closed position of the valve 44 the pipe 40 is vented to atmosphere through the upper seating 47 and an outlet 50. The pipe 40, Fig. 1, is connected to a cylinder 38 so that, when pressure is applied, a piston 39 is raised, causing compression of a bellows 24 and, by raising the pressure in a closed chamber 20, causes compression of the pumping bellows 21. The interior of this bellows is connected to the breathing-mask 5 through oppositely directed non-return valves 32, 36. Thus gas is forced into the patient's lungs when the bellows 21 is compressed and withdrawn when the bellows is expanded by a weight 26 on bellows 24. The device for assisting the patient, on spontaneous inhalation, comprises a diaphragm 81, the upper and lower sides of which are connected respectively upstream and downstream of the one-way valve 36. During exhalation, under artificial respiration conditions, the pressure in connecting duct 82 is lower than that in duct 83 and the diaphragm 81 is held in its lowermost position. However, if the patient makes a spontaneous effort at inhalation during this phase there is an additional rarefaction in the tube 17 and, owing to the resistance of valve 36, the pressure above diaphragm 81 becomes lower than that below it. The diaphragm is consequently raised and opens a valve 78 which vents a pipe 71 to atmosphere through duct 77. The further end of this pipe is connected to the duct 54, Fig. 2, and the venting of the latter duct immediately opens valve 44 and initiates an inhalation phase. Other features of the apparatus described include a stop valve 73, for providing entirely automatic timing of the respiration cycle, and the provision of a carbon dioxide absorber 9. Anaesthetic or other gases may be connected through a pipe 86 so as to feed into the delivery duct through a connecting pipe 85 but, when a turncock 14 is turned clockwise through 90 degrees, to isolate the patient from the forced respiration apparatus, the patient is then connected to a normal breathing-bag 91 and the gas supply pipe 86 is connected into the system through a duct 90. Reference has been directed by the Comptroller to Specification 781,747.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US778390A US3046979A (en) | 1958-12-05 | 1958-12-05 | Lung ventilators and control mechanism therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
GB882365A true GB882365A (en) | 1961-11-15 |
Family
ID=25113178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB40735/59A Expired GB882365A (en) | 1958-12-05 | 1959-12-01 | Improvements in lung ventilating apparatus |
Country Status (2)
Country | Link |
---|---|
US (2) | US3046979A (en) |
GB (1) | GB882365A (en) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3126001A (en) * | 1959-09-16 | 1964-03-24 | Arrangement in respirators | |
GB1031520A (en) * | 1962-12-17 | 1966-06-02 | Blease Anaesthetic Equip Ltd | Improvements in or relating to ventilation machines |
US3307542A (en) * | 1963-02-05 | 1967-03-07 | Air Shields | Lung ventilating equipment |
DE1270225B (en) * | 1963-02-07 | 1968-06-12 | Air Shields | Lung ventilator |
GB1062772A (en) * | 1963-03-20 | 1967-03-22 | Geoffrey Barnett Burchell | A respiratory apparatus |
US3251359A (en) * | 1963-04-25 | 1966-05-17 | Ismach Aaron | Automatic intermittent positive pressure ventilators |
DE1273134B (en) * | 1965-12-20 | 1968-07-18 | Draegerwerk Ag | Ventilator |
US3503393A (en) * | 1966-05-19 | 1970-03-31 | Blease Anaesthetic Equip Ltd | Patient controlled respiratory apparatus |
US3789837A (en) * | 1970-12-11 | 1974-02-05 | J Liddall | Automatic therapeutic ventilator |
US3780738A (en) * | 1971-12-08 | 1973-12-25 | Deaton Medical Co | Method and apparatus of medical suction |
US3916888A (en) * | 1973-10-04 | 1975-11-04 | Tecna Corp | Respirator |
US3841327A (en) * | 1973-07-02 | 1974-10-15 | Airco Inc | Anesthesia ventilator apparatus |
US3890967A (en) * | 1973-10-17 | 1975-06-24 | James O Elam | Breathing indicator and ventilator |
US3903881A (en) * | 1974-04-12 | 1975-09-09 | Bourns Inc | Respirator system and method |
US3973564A (en) * | 1974-08-08 | 1976-08-10 | Dupaco Incorporated | Anaesthetist's respiration apparatus |
US3967619A (en) * | 1974-11-15 | 1976-07-06 | Story Eddie W | Apparatus and method for intermittent mandatory ventilation |
US4169465A (en) * | 1977-05-04 | 1979-10-02 | James A. Walls | Method and apparatus for obtaining non-invasive cardio-pulmonary measurements |
DE2806750A1 (en) * | 1978-02-17 | 1979-08-23 | Draegerwerk Ag | MANUAL VENTILATION DEVICE FOR VENTILATION DEVICES |
US4506667A (en) * | 1983-04-06 | 1985-03-26 | Figgie Int Inc | Self-contained ventilator/resuscitator |
GB8509413D0 (en) * | 1985-04-12 | 1985-05-15 | Penlon Ltd | Gas flow control apparatus |
SE8700977D0 (en) * | 1987-03-09 | 1987-03-09 | Olof Werner | UNIT WHICH SEPARATELY SEPARATES THE GAS CONTENT IN THE DRIVE CIRCUIT AND THE RECEIVER CIRCUIT BUT ONLY ALLOWS GAS PIPE IN THE BAD DIRECTIONS (OPEN SEPARATION) |
DE3823381A1 (en) * | 1987-11-03 | 1989-05-24 | Draegerwerk Ag | CIRCUIT BREATH PROTECTOR |
US4928685A (en) * | 1988-10-05 | 1990-05-29 | Cairns & Brother Inc. | Closed-circuit positive pressure breathing apparatus with pneumatically operated storage chamber |
US4991576A (en) * | 1988-10-11 | 1991-02-12 | Henkin Melvyn Lane | Anesthesia rebreathing system |
DE3900276A1 (en) * | 1989-01-07 | 1990-07-12 | Draegerwerk Ag | VENTILATOR WITH BREATHING CIRCUIT AND CONTROLLED FRESH GAS SUPPLY |
US5645052A (en) * | 1991-04-26 | 1997-07-08 | The Boc Group Plc | Anaesthetic vaporizer with expandable/contractable reservoir for pumping liquid anaesthetic |
JPH0824337A (en) * | 1994-07-11 | 1996-01-30 | Masaaki Inoue | High frequency respirator |
US5485834A (en) * | 1994-08-10 | 1996-01-23 | The United States Of America As Represented By The Secretary Of The Navy | Manually tunable, closed-circuit underwater breathing apparatus |
AUPN381195A0 (en) * | 1995-06-26 | 1995-07-20 | Techbase Pty. Ltd. | Bag in pressure chamber arrangement for use in anaesthesia and resuscitation apparatus |
US6631717B1 (en) * | 1999-10-21 | 2003-10-14 | Ntc Technology Inc. | Re-breathing apparatus for non-invasive cardiac output, method of operation, and ventilator circuit so equipped |
JP2003514630A (en) * | 1999-11-20 | 2003-04-22 | ミヒャエル・ヘルマヌッセン | Device for inhaling drugs by assisted positive pressure breathing |
NZ541134A (en) * | 2005-07-04 | 2007-10-26 | Lifevent Medical Ltd | Continuous positive airway pressure device with constant pressure applied on breathable air reservoir |
CN101808688A (en) * | 2007-08-22 | 2010-08-18 | 纽约州立大学研究基金会 | Breathing-gas delivery and sharing system and method |
US11717634B2 (en) * | 2018-10-02 | 2023-08-08 | MaxxO2, LLC | Therapeutic oxygen breathing apparatus and exercise system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2547458A (en) * | 1947-06-25 | 1951-04-03 | Stephenson Corp | Resuscitator |
GB649229A (en) * | 1948-11-11 | 1951-01-24 | John Henry Blease | Improvements in apparatus for the control of respiration, resuscitation and anaesthesia |
FR1017808A (en) * | 1950-03-21 | 1952-12-19 | Improvements to devices such as respiratory devices | |
US2737178A (en) * | 1952-12-15 | 1956-03-06 | E & J Mfg Co | Breathing machine |
US2904035A (en) * | 1957-01-29 | 1959-09-15 | Air Shields | Control apparatus for lung ventilators |
US2867210A (en) * | 1957-05-01 | 1959-01-06 | Bennett Respiration Products I | Automatic cycling attachment for pressure breathing therapy units |
-
0
- US US25871D patent/USRE25871E/en not_active Expired
-
1958
- 1958-12-05 US US778390A patent/US3046979A/en not_active Expired - Lifetime
-
1959
- 1959-12-01 GB GB40735/59A patent/GB882365A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3046979A (en) | 1962-07-31 |
USRE25871E (en) | 1965-10-05 |
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