Ureteric Stone Extraction by a New Double-Balloon Catheter: an Experimental Study

Abstract
An atraumatic double-ballooned catheter was designed to extract endoscopically ureteral calculi of relatively large size (1-1.5 cm) arrested at any level of the ureter [in humans]. This reduces the need for ureterolithotomy, eliminates the problems of stone basket manipulations and reduces the need for prolonged waiting for spontaneous migration of stones.