| Description | This is a Southey trocar, a specialised medical instrument used to drain fluid from body cavities. Named after Dr Richard Southey who developed it in 1878, it was designed to manage conditions involving significant fluid accumulation (anasarca). Made by Fannin from steel, as engraved on the tip, the Southey trocar consists of a hollow cylindrical shaft and a sharp, pointed trocar that fits inside the shaft. The trocar allows for easy penetration into the targeted area, while the hollow shaft enables fluid drainage. Often, the trocar is connected to tubing to facilitate continuous drainage. This type of trocar is adjustable, with four different sized cannulae with perforations and an oval silver shield (as engraved). These components are housed in dedicated compartments within the handle and secured by a screw-in cap. At the opposite end, the trocar is secured within the handle by the screw-in cap. The device would have been completed with tubing, which is currently missing. To use the trocar, it is inserted into the skin and underlying tissue, reaching the fluid-filled cavity. Once inserted, the trocar is removed, leaving the hollow shaft in place to allow the fluid to flow out. Although the Southey trocar is not as commonly used today due to advancements in medical techniques and devices, it remains a notable instrument in the history of medicine for its contribution to managing fluid overload in chronic conditions. |