Types of drains Open passive drains These provide a conduit القناة around which secretions may flow
• Corrugated drain (after subcutaneous abscess drainage) • Penrose tube drain • Drainage setons placed in anal fistulas • Wick drain
Closed passive drains These drain fluid by gravity (siphon effect) or by capillary flow
• Robinson tube drain (after intraabdominal abscess drainage) • Nasogastric tube • Ventriculoperitoneal shunt • Chest drain (tube thoracostomy)
Closed active drains These generate active suction (low or high pressure)
• Exudrains®,Redivac drains ®, Minivac ®, Jackson Pratt drains (after pelvic or breast surgery)