Cook® Cone Tip Ureteral Catheter Product Information Used for retrograde pyelogram. The tip occludes the ureteral orifice. Related products Add to cart Cook® Atlas Wire Stone Extractor $0.00 Add to cart Cook® Grasping Forceps $0.00 Add to cart Cook® HiWire™ Nitinol Core Wire Guide $0.00 Add to cart Cook® NTrap Stone Entrapment and Extraction Device $0.00 Add to cart Cook® Urethral Dilator Set $0.00