The Dual Lumen Ureteral Catheter is a radiopaque catheter that is temporarily and transurethrally placed in the renal pelvis and ureter. It is used for urethral catheterization, collecting specimen, pyelography drug infusion, and dilation of ureteral strictures. The ureteral catheter should be inserted into the ureter using standard endourologic technique, under direct fluoroscopic or radiographic visualization.