Hotel Dieu Hospital Dept. of Anaesthesia, Kingston Collection
Category
Diagnostic & Treatment Artifacts
Classification
Anaesthesia
Accession Number
997008008 a-b
Description
(a) The Walton Apparatus demand flow anaesthetic machine, which consists of a long rectangularshaped body set onto a stand with four wheels; the bottom of the back of the body has two hose connectors which would have brought oxygen and nitrous oxide gases into the machine; the right side of the mac…
(a) The Walton Apparatus demand flow anaesthetic machine, which consists of a long rectangularshaped body set onto a stand with four wheels; the bottom of the back of the body has two hose connectors which would have brought oxygen and nitrous oxide gases into the machine; the right side of the machine has two hook-ups for nitrous oxide gas (running and reserve); the left side of the machine has two hook-ups for oxygen and a gauge which reads the amount of gas in the cylinder; the top front has a dial which controls % oxygen; the top of the machine has a knob which controls the pressure (in mm) of mercury and an emergency oxygen button; (b) wrench attached to the machine by a brass chain; the wrench was used to adjust tank hook-ups.
Number Of Parts
2
Part Names
a - anaesthetic machine - Size: Length 114.6 cm. x Width 46.5 cm. x Depth 37.4 cm.
b - wrench - Size: Length 12.6 cm. x Width 3.5 cm. x Depth 0.7 cm.
Provenance
Purchased by and used at the Hotel Dieu Hospital, Kingston, Ontario, Canada.
A manufacturer's label at the back base reads, ""MANUFACTURED BY MEDICAL SECTION OF // BRITISH OXYGEN ENGINEERING LTD. ["TD" superscripted] // LONDON. N. 18 // SERIAL NO ["O" superscripted] 304983/
306"; front dial reads, "O2 ["2" subscripted] OXYGEN PERCENTAGE N2O ["2" subscr.] // The Walton apparatus // BY THE BRITISH OXYGEN CO. LTD. // MEDICAL // BOC // DIVISION"; a manufacturer's logo on the front reads, "MEDICAL // BOC // DIVISION"; a small label below this reads, "HOTEL DIEU HOSPITAL // ASSET NO. 04027"; right side labels read, "NITROUS OXIDE // N2O ["2" subscr.] - RESERVE" and "NITROUS OXIDE // N2O ["2" subscr.] - RUNNING"; two left side labels both read, "OXYGEN // O2 ["2" subscr.]"
Permanent Location
Storage Room 0009
0009-13-1
Permanent Location Notes
997.008.115 connector was attached to vaporizer 997.016.011 a,b and put on machine 997.008.008 by Dr. Matthews; stored as part of 997.008.008.
Condition Remarks
The machine arrived very dirty and dusty; the paint covering the machine is chipped in several areas; there is very little corrosion visible on the uncovered metal; the screw threads of the cylinder yoke and wing nut show minor corrosion; the hose which would have led from the oxygen % dial to the oxygen tank is missing; #2 no new damage
Copy Type
Original
Reference Types
Person
Book
Reference Comments
Dr. Ray Matthews and John Sikora; "Ward's Anaesthetic Equipment, 3rd ed., by Andrew Davey, John T. B. Moyle and Crispian S. Ward, 1992, pp. 172-173; "Understanding Anaesthesia Equipment - Construction, Care and Complications" by Jerry A. Dorsch, M.D. and Susan E. Dorsch, M.D., 1975, p. 79; "Anaesthetic Equipment - Physical Principles and Maintenance" by C.S. Ward, 1975, p. 156
Research Facts
The Walton Apparatus was a demand flow anaesthetic machine; this was an improvement over earlier machines, because gas was used only when the patient breathed (less gas was used); this is a British-made machine and better than North American models of similar type; the British were ahead of North America in advances in anaesthesiology in this time period; the gas hose connectors at the back would have been for very big cylinders of oxygen and nitrous oxide;the emergency oxygen button is an oxygen flush button; this machine is a gas blender unit with a system to deliver a precise % of oxygen in an oxygen and nitrous oxide gas mix; the mercury pressure knob is a pressure gradient knob; the flow is pressure dependent
Exhibit History
On exhibit in Museum gallery, anaesthesia exhibit - Oct. 2 1997-Oct. 24, 2001