GB650214A - Improvements relating to apparatus for producing analgesia - Google Patents
Improvements relating to apparatus for producing analgesiaInfo
- Publication number
- GB650214A GB650214A GB32628/48A GB3262848A GB650214A GB 650214 A GB650214 A GB 650214A GB 32628/48 A GB32628/48 A GB 32628/48A GB 3262848 A GB3262848 A GB 3262848A GB 650214 A GB650214 A GB 650214A
- Authority
- GB
- United Kingdom
- Prior art keywords
- air
- liquid
- container
- davis
- orifices
- 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
- A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
- A61M16/18—Vaporising devices for anaesthetic preparations
Landscapes
- Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (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)
- Catching Or Destruction (AREA)
Abstract
650,214. Anaesthetic apparatus. SIEBE, GORMAN & CO., Ltd., DAVIS, Sir R. H., and DAVIS, R. W. G. Dec. 16, 1948, No. 32628. [Class 81(ii)] Analgesia apparatus employing evaporable liquid has a temperature control of the mixture strength either in the air supply to the liquid or in an air supply byepassing the liquid or both. As applied to apparatus of the general type described in Specification 604,558 and in which air passed into a liquid container 1 through orifices 27, outwards through orifices 25 in a cylinder 24 and upwards through holes 21 to a central tube 19, the air which has thus been in contact with the liquid is mixed with air entering directly through a casing 18 before passing through a non- return valve 8 to the tube 6 leading to the mouthpiece. The path of the diluting air is partially obstructed by a valve disc 13 set in a tapered orifice 14 and movable longitudinally by a temperature-sensitive bellows 9 filled with volatile liquid. As the temperature rises the bellows expands and opens the valve, so admitting a larger proportion of air. Alternatively the control may be in the path of air passing over the anaesthetic or both paths may be controlled simultaneously. In the device shown, the liquid container 1 is provided internally with a cylindrical wick 28 so that the area from which evaporation can take place remains substantially constant if the container is tilted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB32628/48A GB650214A (en) | 1948-12-16 | 1948-12-16 | Improvements relating to apparatus for producing analgesia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB32628/48A GB650214A (en) | 1948-12-16 | 1948-12-16 | Improvements relating to apparatus for producing analgesia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB650214A true GB650214A (en) | 1951-02-14 |
Family
ID=10341590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32628/48A Expired GB650214A (en) | 1948-12-16 | 1948-12-16 | Improvements relating to apparatus for producing analgesia |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB650214A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3162192A (en) * | 1962-10-09 | 1964-12-22 | Air Reduction | Anaesthetic and analgesic inhalers |
-
1948
- 1948-12-16 GB GB32628/48A patent/GB650214A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3162192A (en) * | 1962-10-09 | 1964-12-22 | Air Reduction | Anaesthetic and analgesic inhalers |
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