Wound drain is a tubelike, nonbioabsorbable device designed to establish a channel for the removal of fluid or purulent material from a closed-wound or an infected area, typically used with a closed drainage system that applies a low negative pressure through the drain lumen.
Flat valve drains contain internal ribs to help prevent collapse and occlusion of the drain and maintain patency.
Trocar is included.
20-centimeter-length wound drain is a four-channel drain.