No cut or no artificial hole is made on the Flexible URS (RIRS – Retrograde Intrarenal Surgery)

A long slender flexible device called a flexible ureteroscope to see and treat stones. The ureteroscope device provides a video image, is inserted through the natural hole into the bladder and up the ureter and kidney until the stone is encountered. The stone can then either be broken up with a laser fiber or pulled out using small baskets.