A sterile endoscope with a rigid or semi-rigid inserted portion intended for the visual examination and treatment of the ureter and the renal pelvis; some types may have a flexible tip at the distal end of the inserted portion. It is inserted through the external urethral orifice during a urological procedure whereby anatomical images are transmitted by a video system via an image sensor chip at the distal end of the endoscope and displayed on a monitor. This device is commonly used for the removal or crushing of stones, and evaluation of pyelitis and renal failure. This is a single-use device.