A single lumen catheter with extendable and retractable drains for providing improved fluid drainage and irrigation. The catheter generally includes a housing enclosing a single unpartitioned lumen, a plurality of drain ports, and a common drain. A plurality of drains provide a plurality of paths for fluid to flow between the common drain and the exterior of the housing. The plurality of drains are coupled to an internal connector within the single lumen, and are selectively movable via the internal connector and a stylet with a specially shaped end tip between a retracted position in which the drains are enclosed within the lumen and an extended position in which the drains extend through the drain ports to the exterior of the housing. Additionally or alternatively one or more elongated tools or other elements can be coupled to the internal connector and caused to move between retracted and extended positions.
