Visual Dilator with Suction Sheath

•It is mainly used for clinical expansion of the patients with kidney stones or hydronephrosis for percutaneous nephrolithotomy and laparoscopic surgical instruments for expansion and establishment of conduit.
•The sheath is made of PTEE plus Bi203 material, which has tearability (no signs of tears and roughness when tearing). The sheath is subjected to a negative pressure of 40 kPa without flattening and a smooth transition of the tip of the sheath.
•The inner and outer surfaces of the dilator are smooth and burr-free, and the outer wall has no uneven graininess, and the diameter of the tip of the dilator is smooth.
•The effective length of the sheath can be customized according to the customer.