An apparatus (110) cooperable with a grasping slot of an elevator for an endoscopeis disclosed. The apparatus comprises an expandable balloon (112) disposablethrough the endoscope for dilitating a stricture in the body duct. The apparatusfurther comprises a catheter (120) disposable about the expandable balloonand through the endoscope. The catheter comprises proximal and distal portionsalong a longitudinal axis thereof. At least the proximal portion comprises asplittable portion formed therealong to define first and second sections separablefrom each other for securing the catheter while protecting and maintaining theexpandable balloon at the stricture.
