Catheter modification for transrenal temporary total ureteral obstruction: the "occlusive" nephroureteral catheter.

When temporary diversion of urine is desired and a simple nephrostomy catheter is insufficient or passage of a ureteral stent cannot be achieved, a standard 8 or 10 F nephroureteral catheter can be modified to provide a single nephrostomy drainage catheter with an occluded ureteral segment that provides total diversion of urine. The "occlusive" nephroureteral catheter is exchangeable over a guide wire as necessary. When healing of the ureteral or bladder process has occurred, the catheter is removable, allowing restoration of normal urine flow.