Closed Wound Suction Unit – Efficient Drainage for Speedy Healing A Closed Wound Suction Unit is a medical machine utilized to remove fluids, e.g., blood or pus, from a wound or surgical site safely. It provides a mild vacuum, which ensures a clean and dry healing environment. It is particularly beneficial after surgery, preventing complications such as infection or fluid buildup. ... https://www.gstc.com/product/close-wound-suction-unit/