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dental anaesthetic inhaler

https://mhc.andornot.com/en/permalink/artifact13183
Dates
1920
1930
circa 1920-1930
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020094
Description
Silver metal dental anaesthetic inhaler made for Somnoform; consists of round base with wire mesh bottom; two curved pieces of metal cover end; hollow metal tube coming out of base at slight angle; handle from base leads upward; round mask with pointed top to go over mouth and nose is perpendicular…
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Accession Number
010020094
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Administration, Intranasal -- instrumentation
Anesthesiology, instrumentation
Anesthesia, Dental
MM= Anesthesia, Inhalation -- inhaler/mask -- inhaler
Description
Silver metal dental anaesthetic inhaler made for Somnoform; consists of round base with wire mesh bottom; two curved pieces of metal cover end; hollow metal tube coming out of base at slight angle; handle from base leads upward; round mask with pointed top to go over mouth and nose is perpendicular to base; knob on side of inhaler controls how much Somnoform, how much air, or what mixture of the two is being inhaled through the mask.
Number Of Parts
1
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
Stratford-Cookson Ltd.
Site Made (City)
Yeadon
Site Made (State)
Pennsylvania
Site Made (Country)
United States of America
Dates
1920
1930
circa 1920-1930
Date Remarks
Based on donor's remarks
Material
metal: silver
Inscriptions
Engraved on side: "STRATFORD-COOKSON // SOMNOFORM INHALER"; engraved on side: "AIR // 1/4 // 1/2 // 3/4 // SOMNOFORM"; engraved on base: "7813"
Permanent Location
Storage Room 0010
0010-B
Temporary Location
On display, Queen's University Department of Medicine third floor, August 20, 2013.
Dimension Notes
Length 22.7 cm x Width 15.8 cm x Depth 8.9 cm
Condition Remarks
Metal slightly tarnished
Copy Type
Original
Reference Types
Book
Other
JPG
Reference Comments
"Dental Materia Medica and Therapeutics", Herman Prinz, 1913, p. 315; "'Somnoform' a New Aid to Surgery.", New York Times, June 4, 1904
CD #9
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008; this item was donated by Dr. Norman Ironstone from Ottawa, Ontario; Somnoform was a general anaesthetic made from 60 parts ethyl chloride, 35 parts methyl chloride, and 5 parts ethyl bromide; it was invented by Georges Rolland, director of the dental school at Bordeaux, in 1901; the anaesthetic had a very low boiling point, and turned to gas immediately upon contact with air; it had to be used with a special inhaler or, originally, with a piece of cloth with paper and cotton batting inside; one of its virtues was the fact that a patients breathing stopped before their heart stopped beating, so dentists could monitor their patients breathing in case of problems; it was claimed to be better for minor surgery than nitrous oxide because of its longer anaesthetic time, and better to use before ether or chloroform; while the instructions claimed it was the safest of all anaesthetics, a few deaths did occur, and its use was fairly short-lived
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