1) Methods:128 cases were treated by aerodynamic trajectory lithotrity with the URS including 10 cases of calculus in upper part, 46 cases in middle part, and 72 cases in lower part of ureter.

2) Objective: Observation after urethra holmium laser lithotrity treatment ureter upside stone clinical curative effect and security.

3) Introduced several lithotrity technologies now at use and made comparisons between them in help potential users make decision in selection of these types of products for references.

4) Conclusion: Under ureter mirror barometric pressure trajectory lithotrity security. Damages slightly. The effect is obvious.

5) Objective To evaluate the clinical efficacy and complication with ureteroscopic pneumatic lithotrity on the treatment of ureteral stones in children.

6) Transurethral endoscopic incisions or unroofing of ureteroceles was used in all cases, and mechanical lithotrity were carried out for 5 cases who had calculi inside ureterocele.

7) Objective:To observe clinical effect and complications of treating ureterolith through aerodynamic trajectory lithotrity by ureterorenoscope(URS).