The product is used in conjunction with endoscopes and is employed for bile duct stone removal through endoscopy. During the operation, it provides a passage for the insertion of guidewires and the injection of contrast agents. 

Three-chamber / double-chamber variable-diameter catheter design 

Three-chamber/dual-chamber simultaneous injection, with excellent air tightness 

Tube body development design: "X" position for better development clarity 

Low-resistance balloon design, facilitating smooth stone removal 

The φ size is selectable, with options for dual-chamber, triple-chamber or multi-chamber designs, and the length is also selectable. 

Colors and materials can be customized; integrated co-injection