The present disclosure includes a drainage catheter assembly (10) comprising:a catheter (12), comprising a flexible, hollow body (20) terminating in a distal end (18) comprising a tapered tip (22) and defining a catheter lumen (21) with a tip outlet (28) in the tapered tip (22)；a hollow stiffening rod (14) slidably received within the catheter lumen (21) and defining a stiffening rod lumen (44) marginally greater than 0.455 millimeters (0.018 inches)；the catheter lumen (21) having a first portion (34) sized to slidably receive the stiffening rod (44) and a second portion (36), at least including the tip outlet (2), and being marginally greater than 0.455 millimeters (0.018 inches)； andat least one fluid port (40) located in the hollow body (20) at the distal end (18).A guide wire insertion kit including the drainage catheter is also provided.
