Methods: 386 cases were treated by the double J tubes as inner-stent and inner-elicitation because of the stricture at the pontes of ureter and pyelo, poly-kidney stone, ESWL and so on.

• 方法采用双J导管作内支架和内引流治疗肾盂、输尿管连接部狭窄成形术，多发性肾结石取石术，体外冲击波碎石术(ESWL)等手术病人386例。