GB608536A - Improvements in or relating to apparatus for the administration of inhalant gas mixtures - Google Patents
Improvements in or relating to apparatus for the administration of inhalant gas mixturesInfo
- Publication number
- GB608536A GB608536A GB596046A GB596046A GB608536A GB 608536 A GB608536 A GB 608536A GB 596046 A GB596046 A GB 596046A GB 596046 A GB596046 A GB 596046A GB 608536 A GB608536 A GB 608536A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- drum
- expired
- port
- over
- 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
- A61M16/10—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)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Pulmonology (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)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
608,536. Gas-administration apparatus. BRITISH OXYGEN CO., Ltd., and JONES, W. Feb. 26, 1946, No. 5960. [Class 81(ii)] In apparatus for the administration of anaesthetic gas mixtures comprising expired gas and a proportion of fresh gas, there is provided means for incorporating in the mixture the vapour of a volatile liquid, said means comprising a flow-control mechanism operable in one position to permit mixing of fresh gas with expired gas followed by passage over the volatile liquid, and in another position to cause fresh gas to bubble through the liquid and the expired gas to pass over it, with subsequent mixing of the two gas streams. The apparatus shown comprises a carbon dioxide absorber A, valve means PA for controlling the flow of the expired gas therethrough and a vaporizer E for ether generally as disclosed in Specifications 550,296, 577,644 and 577,645. The said flow-control mechanism comprises a drum 10 connected through spindle 29 to operating knob 34, and serving in the position shown to pass the expired gas through port 12 and tube 19 over the ether, and thence via port 13, conduit 22, port 14 and the valve 15 to the face mark. Rotation of the drum progressively closes ports 12, 13, and brings a further opening (not shown) in the drum into register with port 14, thereby increasingly bye-passing the vaporizer. Also in the position shown, fresh gas passes through duct 16 and an opening (not shown) in the drum 10 to mix with the inspired gas stream. In the second position, the fresh gas passes via a tube 26 in drum 10 through a tube 18 to bubble through the ether, and thereafter mixes with the expired gas passing over it.. Inadvertent movement of knob 34 into the second position is prevented by the engagement of a stop 39 on a spring-urged pivoted lever 36 with a stop on the hoursing. The construction of the knob and safety mechanism is also shown in greater detail.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB596046A GB608536A (en) | 1946-02-26 | 1946-02-26 | Improvements in or relating to apparatus for the administration of inhalant gas mixtures |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB596046A GB608536A (en) | 1946-02-26 | 1946-02-26 | Improvements in or relating to apparatus for the administration of inhalant gas mixtures |
Publications (1)
Publication Number | Publication Date |
---|---|
GB608536A true GB608536A (en) | 1948-09-16 |
Family
ID=9805859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB596046A Expired GB608536A (en) | 1946-02-26 | 1946-02-26 | Improvements in or relating to apparatus for the administration of inhalant gas mixtures |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB608536A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1098169B (en) * | 1956-12-24 | 1961-01-26 | Cyprane Ltd | Device for mixing the vapor of volatile anesthetics with gases |
-
1946
- 1946-02-26 GB GB596046A patent/GB608536A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1098169B (en) * | 1956-12-24 | 1961-01-26 | Cyprane Ltd | Device for mixing the vapor of volatile anesthetics with gases |
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