Advances in application of indwelling two double J stent ipsilateral urinary canal during upper urinary tract surgery

Double J stents have good effects on support and the internal drainage, they can drainage urine, and can play an important role in drainage urine, improving renal function and preventing ureteral stricture.The retention of two double J tubes in the lumen of the ipsilateral urinary tract is better than the retention of single double J tube in some cases. Key words: Double J stent; Ureter; Upper urinary tract surgery; Indication; Drainage