Double location electromagnetic wave was used to treat 387 patients with urinary stone 197 of them had calculus of kidney 158 ureterolith 32 vesical calculus . Results showed that the stone grind rate was 99.8 % one failed .

用双定位电磁波 碎石机治疗泌尿系结石387例，其中肾结石197例，输尿管结石158例， 膀胱结石32例，结果 结石粉碎率为99.8%，1例不成功。