Bidspirit auction | antique veterinary trocar & cannula

antique veterinary trocar & cannula -  This type of instrument, often made of steel with a fruitwood or ebony handle, dates back to the 19th century and was used to vent accumulated gas in cattle, a condition known as bloat. Key details about the instrument: Function: Trocars were plunged into the chest or abdomen of an animal to drain fluids or gas. Components: The sharp, pointed inner instrument (the trocar) was inserted into a hollow tube (cannula), which was left in place to allow drainage after the trocar was removed.