GB500789A - Improvements in and relating to apparatus for administering anaesthetic gases or vapours - Google Patents
Improvements in and relating to apparatus for administering anaesthetic gases or vapoursInfo
- Publication number
- GB500789A GB500789A GB2615338A GB2615338A GB500789A GB 500789 A GB500789 A GB 500789A GB 2615338 A GB2615338 A GB 2615338A GB 2615338 A GB2615338 A GB 2615338A GB 500789 A GB500789 A GB 500789A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- diaphragm
- air
- gas
- patient
- 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
- 239000007789 gas Substances 0.000 title abstract 4
- 230000003444 anaesthetic effect Effects 0.000 title abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000003111 delayed effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000012858 resilient material Substances 0.000 abstract 1
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
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. ventilators; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/104—Preparation of respiratory gases or vapours specially adapted for anaesthetics
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)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
500,789. Fluid - actuated valves. CARSBERG, H. W. Sept. 7, 1938, No. 26153. [Class 135] [Also in Group VI] Anaesthetic apparatus comprises a diaphragm of resilient material adapted to be moved by the breathing of the patient and located between and operating upon at least one air and at least gas or vapour valve. As shown the diaphragm 1, of rubber or thin metal, is peripherally clamped in a casing 6 and has central studs 2 engaging on one side a spindle 4 passing through a thickened portion 7 of the casing and contacting with an air-inlet flap valve 8, and on the other a spring-loaded compound lever 14, 15, 16, contacting with a spring-loaded gas-admission valve 11 having an annular seating 12, 13. Movement of the diaphragm, under the patient's inhaling effort exerted through a pipe 19, opens the valve 11 and releases valve 8 permitting the inhalation of air through a port 9 and a pipe 18. If two or more gases are supplied, a separate valve for each gas may be provided. One of the valves may be given a delayed opening, for example by applying a closing bias to valve 8 or shortening valve stem 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2615338A GB500789A (en) | 1938-09-07 | 1938-09-07 | Improvements in and relating to apparatus for administering anaesthetic gases or vapours |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2615338A GB500789A (en) | 1938-09-07 | 1938-09-07 | Improvements in and relating to apparatus for administering anaesthetic gases or vapours |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB500789A true GB500789A (en) | 1939-02-15 |
Family
ID=10239203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2615338A Expired GB500789A (en) | 1938-09-07 | 1938-09-07 | Improvements in and relating to apparatus for administering anaesthetic gases or vapours |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB500789A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2535844A (en) * | 1946-08-01 | 1950-12-26 | John H Emerson | Aspirator for administering medicine |
| US2766752A (en) * | 1952-11-28 | 1956-10-16 | Firewel Ind | Apparatus for supplying gas for respiration |
| US2914067A (en) * | 1954-03-01 | 1959-11-24 | Firewel Ind | Breathing apparatus |
-
1938
- 1938-09-07 GB GB2615338A patent/GB500789A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2535844A (en) * | 1946-08-01 | 1950-12-26 | John H Emerson | Aspirator for administering medicine |
| US2766752A (en) * | 1952-11-28 | 1956-10-16 | Firewel Ind | Apparatus for supplying gas for respiration |
| US2914067A (en) * | 1954-03-01 | 1959-11-24 | Firewel Ind | Breathing apparatus |
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