Disclosed are a device and a method for irrigating a urinary catheter connected to a drainage bag. The device is configured to be selectively operated in any one of a drainage state, an irrigation state, and a disposal state without requiring its disconnection from the drainage bag. The device includes a port for receipt of a syringe holding an irrigation fluid. When in the drainage state the device enables fluid from the patient to passively drain into the bag. When in the irrigation state the device isolates the catheter from the bag and enables the irrigation liquid to be introduced from the syringe into the catheter and the patients bladder to produce a contaminated fluid and also enables the contaminated fluid to be withdrawn back into the syringe. In the disposal state the device isolates the catheter from the drainage bag and enables the contaminated fluid to be introduced into the discharge bag.
