Valve

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OBJECT TYPE
N/A
DATE
1933–1937
ARTIFACT NUMBER
2014.0119.010
MANUFACTURER
Coxeter & Son
MODEL
Nitrous Oxide
LOCATION
London, United Kingdom

More Information


General Information

Serial #
21749
Part Number
10
Total Parts
16
AKA
N/A
Patents
N/A
General Description
Metal body; brass connector; rubber tubing

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length
27.0 cm
Width
13.0 cm
Height
6.5 cm
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Medical Technology
Category
Chemicals & medications
Sub-Category
N/A

Manufacturer

AKA
Coxeter
Country
United Kingdom
State/Province
Unknown
City
London

Context

Country
Unknown
State/Province
Unknown
Period
Unknown
Canada
Part of a collection of medical technologies donated to the Canada Science and Technology Museums Corporation by the Canadian Anesthesiologists’ Society. This machine was lent to CAS by Dr. Jeremy Sloan of North York, Ontario in 1995. Dr. Sloan is regarded as a leader in the promotion of safety standards for anesthetic equipment.
Function
Unknown
Technical
The original concept of Boyle's machine was invented by the British anaesthetist Henry Boyle (1875–1941) in 1917. Boyle promoted intratracheal insufflation techniques using nitrous oxide, oxygen and ether, replacing open-drop anaesthesia. Initially he used imported Gwathmey machines from the USA, but finding them unreliable, he developed his own continuous-flow machines. His design included cylinders for the gases and a "Boyle's Bottle" to vaporize diethyl ether. Until recently, an anaesthetic machine was often referred to as a "Boyle's Machine" in honour of his contribution. Dr. Sloan believes that this machine has an unsafe design because it was hard to assemble which often resulted in connection errors and issues during operation. (ref.1)
Area Notes
Unknown

Details

Markings
On proper front: "NITROUS OXIDE/ COXETER/ LONDON/ PATENT/ No. 190807."/ Stamped on side: "21749"
Missing
Appears complete
Finish
Plated metal, brass, and brown rubber tubing
Decoration
N/A

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

Coxeter & Son, Valve, circa 1933–1937, Artifact no. 2014.0119, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2014.0119.010/

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