Description

Trilene* inhaler for obstetric anesthesia made by Cyprane Ltd in Oxenhope,UK. “Hand-held by patient, this inhaler was used for obstetric analgesia. Comes in original, labeled, blue cardboard box that includes cylinder, face mask and no.5. key to charge. UK Pat. no 628709. Maker: Cyprane Ltd, Keighley England.” The inhaler, including mask, is in very good condition ( what you’re seeing in first image is the reflection of the camera and me holding it) ; the box shows wear. A similar example lacking mask is in the Sheffield (UK) Anesthesia Museum–see link below.

*” ‘Trilene’ is the brand name of the drug trichloroethylene, manufactured by Ayerst Laboratories. The chemical formula for trichloroethylene was discovered in 1863, and it became a popular analgesic in the 1940s and 1950s. It provides a light level of unconsciousness, and wears off quickly. ” Wood Library.

https://www.anaesthesiamuseum.co.uk/cyprane_trilene.html