The Closed Wound Drainage Kit contains three essential parts: a silicone bulb (reservoir), silicone drains, and a stainless steel trocar. It is primarily used as a post-operative drain for collecting bodily fluids from surgical sites to ensure a clean recovery environment.

The system utilizes a negative pressure mechanism. By creating a vacuum state within the suction head, fluids and secretions are efficiently "squeezed" and pulled into the reservoir.

Clinical Application: Widely used in various surgical departments for drainage of sewage blood and secretions. The process of negative pressure drainage assists in debridement and significantly promotes wound healing while reducing patient discomfort.