34161 Disposable Pcn Dilater Of Different Sizes 1) Used For Progressive Dilatation Of Nephrostomy Tract Before Percutaneous Kidney Stone Removal. 2)short Tapered Tips. 3)a Smooth Surface Reduces The Patient Percent U2019s Trauma. 4)c.N Dilators Are Used For Dilatation Of Percutaneous Track Over The Guide Wire 5)made Up Of Teflon Material. Fully Radiopaque 6)comes With Luer Lock Adaptor With Marked Size Accepts 0.038 Guide Wire.