Securely lock base, synchronously advancing the ureteral sheath and the dilator.
The long tapered tip can be gradually expanded into place smoothly, reducing trauma, reserve Guide wire opening which can be placed in the body without repeated insertion.
The surface scale easily control the entry distance, and the hydrophilic coating has excellent lubricating effect.
The sheath inside is coated with PTFE. Makes endoscope and instruments enter smoothly, and the stainless steel wire layer provides better compression resistance.