Methods Choledochfiberscope(CHF) combined with air pressure ballistic lithoclast(APBL) under ureterscopy were used on 28 cases of large or impacted residual gallstones.

• 方法以输尿管硬镜气压弹道碎石联用纤维胆道镜治疗28例巨大、嵌顿性胆道残石。