GB603333A - Improvements in or relating to anaesthetic apparatus - Google Patents
Improvements in or relating to anaesthetic apparatusInfo
- Publication number
- GB603333A GB603333A GB3172345A GB3172345A GB603333A GB 603333 A GB603333 A GB 603333A GB 3172345 A GB3172345 A GB 3172345A GB 3172345 A GB3172345 A GB 3172345A GB 603333 A GB603333 A GB 603333A
- Authority
- GB
- United Kingdom
- Prior art keywords
- patient
- regulator
- gas
- pipe
- anaesthetic apparatus
- 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
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)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
603,333. Anaesthetic apparatus. TALLEY, H. A. E. Nov. 24, 1945, No. 31723. [Class 81(ii)] In anaesthetic apparatus actuated by the inhalation of the patient, a gas control device comprises two diaphragm type vacuum regulators 2, 5, a jet 6 and venturilike tube 6a, a connection 1 to the patient, and an inlet 3 through which atmospheric air or a secondary gas passes via -pipe 14 to the second regulator and thence via pipe 11 to the venturi tube. Operation of the regulator 2 by inhalation of the patient controls the supply of primary gas from the cylinder 7; passage of this gas through the jet 6 creates a vacuum which operates regulator 5 so as to admit a constant proportion of air or secondary gas independent of variations in the breathing of the patient. In a modification (Fig. 2, not shown) a branch pipe leads from the primary gas supply via a restricting nozzle and storage chamber to the inner of two concentric jets arranged in the inlet to the regulator 5. With this arrangement pure primary gas is supplied to the patient while the pressure in the storage chamber is above atmospheric. The regulators may be of the type described in Specification 566,009, and safety means as described in Specification 591,575 may be provided in pipe 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3172345A GB603333A (en) | 1945-11-24 | 1945-11-24 | Improvements in or relating to anaesthetic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3172345A GB603333A (en) | 1945-11-24 | 1945-11-24 | Improvements in or relating to anaesthetic apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB603333A true GB603333A (en) | 1948-06-14 |
Family
ID=10327420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3172345A Expired GB603333A (en) | 1945-11-24 | 1945-11-24 | Improvements in or relating to anaesthetic apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB603333A (en) |
-
1945
- 1945-11-24 GB GB3172345A patent/GB603333A/en not_active Expired
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