GB1444607A - Ventilators - Google Patents
VentilatorsInfo
- Publication number
- GB1444607A GB1444607A GB4093473A GB4093473A GB1444607A GB 1444607 A GB1444607 A GB 1444607A GB 4093473 A GB4093473 A GB 4093473A GB 4093473 A GB4093473 A GB 4093473A GB 1444607 A GB1444607 A GB 1444607A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- gas
- chamber
- outlet
- flows
- 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
- A61M16/0012—Accessories therefor, e.g. sensors, vibrators, negative pressure with sub-atmospheric pressure, e.g. during expiration by Venturi 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. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0051—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes with alarm 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
- A61M16/0057—Pumps therefor
- A61M16/0084—Pumps therefor self-reinflatable by elasticity, e.g. resuscitation squeeze bags
-
- 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
- A61M16/0078—Breathing bags
Abstract
1444607 Ventilators F M BIRD 30 Aug 1973 [8 Sept 1972] 40934/73 Heading A5T Ventilating apparatus comprises a manifold 37 supplied with gas from a blender 19 and connected to a flow divider 373 having a first outlet connected to a nebulizer 546 and a second outlet connected to a breathing circuit supplying gas to a patient, the flow divider being provided with valve means 374 permitting adjustment of the volume of gas flow through the second outlet thereby controlling the flow of gas to the nebuliser. The manifold 37 is also connected to a by-pass valve assembly 386 'having a flow passage therein controlled by a valve member 391 whereby additional gas can be supplied to the breathing circuit. Gas for the breathing circuit is supplied through tubes 324, 547 to the nebuliser 546 and flows via tee 548 and tube 632 to a water trap 633 and patient adapter 637 e.g. a face mask or tracheal tube. Exhaled gas passes from adapter 637 to a water trap 639 and a check valve 511 from whence it flows through a venturi assembly 503 across the top of diaphragm 566 to an outflow regulator 582 having an outlet 593 to atmosphere. Venturi assembly 503 connects to the breathing circuit through flap valves 511, 514 which open during the exhalation phase and inhalation phase respectively. If inspiratory demand pressure is below atmospheric, ambient air flows in through holes 524 to move a gate member 529 to the right thereby allowing air to pass into tee 518 and hence to the breathing circuit. If over-pressure conditions apply the breathing circuit is vented to amosphere through holes 536 and 524, gate member 529 being moved against the action of spring 537. A control cartridge 58 for the apparatus is shown in Fig. 22 and comprises a passage 402 receiving gas from a control valve 52 connected to manlfold 37, the gas passing into a chamber A via an expiratory time valve assembly 424, and into chamber B where it is trapped by valve 413. Gas also flows to chamber D, and past valve 409 to pressure chamber E: Gas also flows through an inspiratory timer valve 419 into chamber C. When chamber E is pressurised valve 417 closes so that chamber C cannot vent to atmosphere through outlet 406. The length of inspiratory phase is determined by the time taken to pressurise chamber C sufficiently to open valve 413 thereby terminating the inspiratory phase. When valve 413 opens chamber B is vented to atmosphere at 404 and therefore chamber A is vented to atmosphere. Valve 411 closes so that no gas flows through flow rate valve 422 and outlet 403. Pressure therefore drops in the passages communicating with chamber E so that gas bleeds out of chamber E to open valve 417 to vent chamber C to atmosphere through outlet 406. Valve 413 then closes. The expiratory time is determined by the time taken for gas to bleed through expiratory time valve 424 to pressurise ohambers A and B so that valve 409 will open. Means (183, Fig. 5), is provided for sounding an alarm if the inspiratory time is exceeded Means (184) is provided for locking-out flow of gases from the control cartridge after a predetermined inhalation time has elapsed. Means (Fig. 16) is provided for testing the apparatus prior to use.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00287416A US3842828A (en) | 1972-09-08 | 1972-09-08 | Pediatric ventilator |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1444607A true GB1444607A (en) | 1976-08-04 |
Family
ID=23102801
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4093473A Expired GB1444607A (en) | 1972-09-08 | 1973-08-30 | Ventilators |
Country Status (4)
Country | Link |
---|---|
US (1) | US3842828A (en) |
JP (2) | JPS4992888A (en) |
DE (1) | DE2344881C3 (en) |
GB (1) | GB1444607A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5070871A (en) * | 1988-12-28 | 1991-12-10 | Manicom Anthony W | Anaesthetic valve for converting between Mapleson `A` and `D` systems |
US5245996A (en) * | 1988-12-28 | 1993-09-21 | Manicom Anthony W | Anaesthetic system valve for converting between Mapleson `A`, `D`, and `E`c |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3949749A (en) * | 1974-02-24 | 1976-04-13 | Bio-Med Devices Inc. | Pediatric respirator |
USRE29778E (en) * | 1974-06-07 | 1978-09-26 | Bio-Med Devices, Inc. | Pediatric respirator |
DE2430839C2 (en) * | 1974-06-27 | 1982-05-19 | Drägerwerk AG, 2400 Lübeck | Pneumatic oscillator for a ventilator |
US3915164A (en) * | 1974-08-22 | 1975-10-28 | Bird F M | Ventilator |
US3990442A (en) * | 1975-06-06 | 1976-11-09 | Patneau Robert A | Respiratory treatment device |
GB1558060A (en) * | 1975-07-29 | 1979-12-19 | Medishield Corp Ltd | Lung ventilator |
US4060078A (en) * | 1975-08-18 | 1977-11-29 | Bird F M | Ventilator and method |
US4261355A (en) * | 1978-09-25 | 1981-04-14 | Glazener Edwin L | Constant positive pressure breathing apparatus |
US4417573A (en) * | 1981-07-02 | 1983-11-29 | Bear Medical Systems, Inc. | Patient adaptor for medical ventilator |
US4471773A (en) * | 1981-11-19 | 1984-09-18 | Bunnell Life System, Inc. | Apparatus and method for delivering medication to patient's respiratory system |
US4457304A (en) * | 1981-12-04 | 1984-07-03 | Minnesota Mining And Manufacturing Company | Self-regulating infant ventilator |
US4773411A (en) * | 1986-05-08 | 1988-09-27 | Downs John B | Method and apparatus for ventilatory therapy |
US4941469A (en) * | 1987-11-12 | 1990-07-17 | Carmeli Adahan | Portable ventilator apparatus |
US5520192A (en) * | 1991-12-23 | 1996-05-28 | Imperial College Of Science, Technology And Medicine | Apparatus for the monitoring and control of respiration |
EP1205206B1 (en) * | 1994-10-14 | 2003-10-22 | Bird Products Corporation | Exhalation valve |
US6135967A (en) * | 1999-04-26 | 2000-10-24 | Fiorenza; Anthony Joseph | Respiratory ventilator with automatic flow calibration |
DE19923716A1 (en) * | 1999-05-22 | 2000-11-23 | Bernhard Mattes | Device for supplying oxygen to patients air ways with valve turning-off oxygen supply when patient breathes out |
US6240919B1 (en) | 1999-06-07 | 2001-06-05 | Macdonald John J. | Method for providing respiratory airway support pressure |
US7913688B2 (en) * | 2002-11-27 | 2011-03-29 | Alexza Pharmaceuticals, Inc. | Inhalation device for producing a drug aerosol |
US8028697B2 (en) | 2005-04-28 | 2011-10-04 | Trudell Medical International | Ventilator circuit and method for the use thereof |
US7464709B2 (en) * | 2005-06-08 | 2008-12-16 | Norgren, Inc. | Integrated regulator mount for a ventilator system |
US7451763B2 (en) * | 2005-06-08 | 2008-11-18 | Norgren, Inc. | Pneumatic shuttle valve for a ventilator system |
EP2033674A1 (en) * | 2007-09-06 | 2009-03-11 | Activaero GmbH | Inhalation device |
MX2010010139A (en) | 2008-03-17 | 2011-02-21 | Discovery Lab Inc | Ventilation circuit adaptor and proximal aerosol delivery system. |
EP2626098B1 (en) | 2008-10-22 | 2020-08-19 | Trudell Medical International | Modular aerosol delivery system |
CN102233150B (en) * | 2010-04-27 | 2013-11-06 | 崇仁(厦门)医疗器械有限公司 | Bag-mask device capable of supplying gas in different volumes |
US9649468B2 (en) | 2014-09-03 | 2017-05-16 | Fisher & Paykel Healthcare Limited | Respiratory gas humidifier |
CN114183873B (en) * | 2021-12-13 | 2023-04-28 | 深圳市柯瑞玛科技有限公司 | Environment-friendly energy-saving atomizer and noise-reduction air purifier |
-
1972
- 1972-09-08 US US00287416A patent/US3842828A/en not_active Expired - Lifetime
-
1973
- 1973-08-30 GB GB4093473A patent/GB1444607A/en not_active Expired
- 1973-09-06 DE DE2344881A patent/DE2344881C3/en not_active Expired
- 1973-09-07 JP JP48101005A patent/JPS4992888A/ja active Pending
-
1976
- 1976-06-01 JP JP1976070928U patent/JPS5292098U/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5070871A (en) * | 1988-12-28 | 1991-12-10 | Manicom Anthony W | Anaesthetic valve for converting between Mapleson `A` and `D` systems |
US5245996A (en) * | 1988-12-28 | 1993-09-21 | Manicom Anthony W | Anaesthetic system valve for converting between Mapleson `A`, `D`, and `E`c |
Also Published As
Publication number | Publication date |
---|---|
DE2344881C3 (en) | 1980-06-04 |
DE2344881B2 (en) | 1979-09-20 |
JPS4992888A (en) | 1974-09-04 |
JPS5292098U (en) | 1977-07-09 |
US3842828A (en) | 1974-10-22 |
DE2344881A1 (en) | 1974-03-14 |
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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 |