The device is composed of a triple lumen pebax tube with a 3-way splitting connector at the proximal end. It divide the 3 lumen catheter into one luer-lock connector with a 2-way valve to inflate the balloon, one luer-lock connector for a 0.035” guide wire and one luer-lock connector for injection. The Stone Extraction Balloon is on the distal end. The multistage diameters of the balloon are reached using the different syringes supplied.