Rockwood / Kingston Psychiatric Hospital / Providence Continuing Care Centre Collection
Diagnostic & Treatment Artifacts
Ohio anesthesia absorber, which consists of a double-chambered hollow plastic cylindrical central section with metal top and bottom pieces and heavy wire protectors running around the plastic chambers; the bottom of the absorber has a round metal base with a metal bar across the diameter and a cent…
Ohio anesthesia absorber, which consists of a double-chambered hollow plastic cylindrical central section with metal top and bottom pieces and heavy wire protectors running around the plastic chambers; the bottom of the absorber has a round metal base with a metal bar across the diameter and a central adjustable knob that allows the absorber to be fixed onto an anesthesia machine; the top of the absorber is a round metal attachment with a round, central plastic-covered dial; at the front of the top, there are two valves with clear plastic bubble tops and round, open ends; the valve on the proper left has a relief valve exhaust at the top and a piece at the bottom that splits into two open cylindrical pieces; the bottom opening of this valve extension is fitted with a rubber cylindrical covering; there is a metal and rubber cylindrical tube at the back of the absorber, running from top to bottom; a partially torn orange and white sticker is on the top of this tubing; there is a movable metal arm, with a metal cylinder, extending down from its end, attached to the top surface of the back of the absorber's top; inside the top canister, there is a folded piece of paper with product information printed on it.
There is a folded piece of paper with product information printed in black ink in the upper canister (see attached photocopy); instructions printed in black ink on top of the absorber read, "U.S. PAT. 3,083,810 // Ohio® // ANESTHESIA // ABSORBER // MODEL NUMBER"; and imprinted into the metal, "21DC", beneath which, the following appears in black ink: "INSTRUCTIONS // OUT // [reverse triangle] // Change line within 4 hours use after // color change begins in lower canister. // 1. Loosen hand screw to lower base and canister. // 2. Remove both canisters and empty upper canister only. // 3. Refill with 4–8 ni. moisture lime, screening out fines and dust. // 4. Rap canister to settle lime and rake top of lime level with rim. // 5. Center refilled canister in base, and second canister over first. // 6. Tighten handscrew to compress lime and seal absorber. // 7. Open draincock and empty water from base. Close draincock completely. // IN // [triangle] // INSTRUCTIONS"; stamped into the metal is, "ACKF01767" underneath more information printed in black: "SERIAL NUMBER // Ohio Medical Products // DIVISION OF AIRCO. INC // MADISON, WISCONSIN. 53707"; underneath, "Patented in Canada 1963 // AIRCO®"; above this, in black ink: "SAFETY PRECAUTIONS // Before connecting this absorber to each patient, make certain that: // 1. Both check values in breathing circuit are operating reliably. // 2. Direction of flow in circuit corresponds with arrows. // 3. Remaining capacity of lime is adequate for case at hand, // judged by color position at end of use ["at end of use" underlined]. (Color // recodes during rest, making estimate unreliable.) // 4. Rebreather valve (if so equipped) is closed. // SAFETY PRECAUTIONS"; the centre plastic-covered dial in the middle of the top of the machine has semicircular graduation lines, and the numbers, "-10 // 0 // 10 // 20 // 30 // 40 // 50 // 60 // 70" running along the outside of the scale, and the numbers, "-20 // -10 // 0 // 10 // 20 // 30 // 40 // 50 // 60 // 70 // 80 // 90 // 100" along the inside of the scale; underneath the numbers at the midpoint of the semicircle: "CENTIMETERS OF WATER" is printed, and between the open ends of the graduated scale it reads, "Ohio® // VAC. // PRESS. // Marshall // [black circle with a white arrow inside pointing up to the right] town // 88506"; on the top rim of the proper right side of the absorber, a black and white sticker reads, "REBREATHING VALVE // [long, right-pointing arrow] // INSPIRATORY CO2 ["2" subscripted] INCREASED // WHEN RED BAND VISIBLE."; on the valve on the proper left, a red and white sticker reads, "WARNING - EXPLOSION HAZARD - WARNING . // DO NOT EXHAUST FLAMMABLE // AGENTS INTO VACUUM SYSTEM"; a black label on this valve reads, "SET TO LOWEST // PRESSURE WHEN // NOT IN USE TO // PROLONG LIFE // OF DIAPHRAGM"; an orange and white sticker at the top of the rubber tubing reads, "Ohio medical Prod // U L [enclosed in circle; "L" subscripted under "U"] ® // LISTED// ELEC // TUBING // H A"; four black and clear stickers on the sides of the canister read, "DO NOT AUTOCLAVE // Autoclaving will distort the canisters."; a black and white sticker on the bottom rim of the absorber reads, "DRAINCOCK // [down-pointing arrow] // SCREW DOWN TO OPEN // SCREW UP TO CLOSE"; on the proper left valve, there is also a black printed metal plate that reads, "Ohio Medical Products // A DIVISION OF AIRCO, INC. MADISON. WIS. 53707 // AIRCO®"; underneath the metal-stamped figures, "BBFF04115"; near one round opening of this valve, a black and white sticker reads, "RELIEF VALVE EXHAUST"; underneath this opening, near the bottom opening, two arrows pointing towards the absorber are stamped into the metal; on the opposite valve in the same location, two arrows pointing outwards from the absorber are stamped into the metal.
Storage Room 0007
Length 61.2 cm x Width 45.5 cm x Depth 21.0 cm
The majority of the metal and plastic components are in very good condition; all rubber parts are deteriorating (however, these were not original parts of the artifact); there are cracks in the tubing and canister seals, and there is a strong "rubber smell"; there are a few minor scratches on the outside of the plastic canisters; all parts move freely; on the metal rim of the bottom of the canister, there is a sticky deposit, probably adhesive.
"Ohio® heidbrink® Kinet-o-meter® anesthesia apparatus & accessories catalog," Ohio Chemical & Surgical Equipment Co., 1964, pp. 18-19 (similar to top two figures)