GB738283A - Improvements in or relating to valve arrangements for use in resuscitation and in anaesthesia - Google Patents
Improvements in or relating to valve arrangements for use in resuscitation and in anaesthesiaInfo
- Publication number
- GB738283A GB738283A GB1898852A GB1898852A GB738283A GB 738283 A GB738283 A GB 738283A GB 1898852 A GB1898852 A GB 1898852A GB 1898852 A GB1898852 A GB 1898852A GB 738283 A GB738283 A GB 738283A
- Authority
- GB
- United Kingdom
- Prior art keywords
- outlet
- inlet
- passage
- pressure
- closure member
- 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
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/104—Preparation of respiratory gases or vapours specially adapted for anaesthetics
-
- 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
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/208—Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Emergency Medicine (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Percussion Or Vibration Massage (AREA)
Abstract
738,283. Fluid-actuated valves. MEDICAL & INDUSTRIAL EQUIPMENT, Ltd., and CHILDERHOUSE, E. P. Sept. 29, 1953 [July 28, 1952], No. 18988/52. Class 135. [Also in Group VI] A valve arrangement for use in resuscitation and anaesthesia comprises an inlet 1, a first outlet 4, an inlet closure member, e.g. diaphragm 2 controlling a passage 3a, 6a from the inlet to the outlet, a passage from the first outlet to a second outlet 6b controlled by a closure member 5, and a link 7 between the closure members whereby they can close only one passage at a time, so that inlet or first outlet pressure tends to operate the respective closure member to open its associated passage when closed and keep it open when open, the pressure acting over a smaller area when the closure member closes its passage and a larger area when it opens it. The inlet is connected via two reducing valves to an oxygen cylinder, and the outlet to a patient's lungs. The inlet pressure forces the diaphragms to the left to close the second passage and gas flows to the lungs. When the lungs have been fully inflated the pressure build up moves the diaphragms to the right and the gas exhausts to atmosphere at 6b until the pressure has been substantially reduced, because the inlet pressure now acts over a small area of the inlet diaphragm and the outlet pressure over a large area of the outlet diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1898852A GB738283A (en) | 1952-07-28 | 1952-07-28 | Improvements in or relating to valve arrangements for use in resuscitation and in anaesthesia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1898852A GB738283A (en) | 1952-07-28 | 1952-07-28 | Improvements in or relating to valve arrangements for use in resuscitation and in anaesthesia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB738283A true GB738283A (en) | 1955-10-12 |
Family
ID=10121863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1898852A Expired GB738283A (en) | 1952-07-28 | 1952-07-28 | Improvements in or relating to valve arrangements for use in resuscitation and in anaesthesia |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB738283A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1147356B (en) * | 1957-01-29 | 1963-04-18 | Air Shields | Ventilator, especially for anesthesia systems, with a control device |
| WO2003004082A1 (en) * | 2001-05-31 | 2003-01-16 | Seleon Gmbh | Breathing valve for cpap units, valve body and method |
| EP1197238A3 (en) * | 2000-10-12 | 2003-07-16 | Gottlieb Weinmann Geräte für Medizin und Arbeitsschutz GmbH + Co. | Method and device for changing the cross section of stream |
-
1952
- 1952-07-28 GB GB1898852A patent/GB738283A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1147356B (en) * | 1957-01-29 | 1963-04-18 | Air Shields | Ventilator, especially for anesthesia systems, with a control device |
| EP1197238A3 (en) * | 2000-10-12 | 2003-07-16 | Gottlieb Weinmann Geräte für Medizin und Arbeitsschutz GmbH + Co. | Method and device for changing the cross section of stream |
| WO2003004082A1 (en) * | 2001-05-31 | 2003-01-16 | Seleon Gmbh | Breathing valve for cpap units, valve body and method |
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