It is a complete renal dilatation kit to sequentially dilate the nephrostomy tract for mini-invasive Percutaneous Nephrolithotomy, it is also called PCNL kit, or mini-invasive PCNL dilatation kit.
The whole kit consists of several dilator tubes, a tearing sheath, and optional accessories, including a negative suction adaptor, a guide wire, a puncture needle, or a drainage catheter.

Scope of application: It is a complete sequential dilatation kits for percutaneous nephrostomy, the kit is used to establish a percutaneous tract to the renal pelvis.
Applicable to: It is suitable for patients with kidney stones or hydronephrosis during percutaneous renal dilation and drainage and endoscopic surgical instrument placement.