[Technical improvements and clinical study for extracorporeal shock wave lithotriptor].

The author reviewed technical improvements of XYS.SUI-6X extracorporeal shock wave lithotriptor and illustrated the clinical efficacy of the lithotriptor with clinical study based on clinical trial after its upgraded, which curative ratio and effective ratio were increased to 76.67% and 20.00% respectively. Total cure and relief rate was 96.67%, invalidation was 3.33%, the results were better than the outcomes before its improvements.