What am I looking at?
Visual recognition
Long catheter traversing the renal collecting system and ureter into the bladder, with an external segment available for drainage, flushing, exchange, or capping.
13-11
Nephroureteral catheter
Nephroureteral drain
Three-panel learning framework
Recognition, context, and distinction
What does it do, and where will I see it?
Use & procedural context
Used to maintain antegrade urinary drainage across ureteral obstruction, injury, or stricture and during staged conversion between external and internal drainage.
What most clearly distinguishes it from similar devices?
Key distinctions
A nephroureteral catheter spans the renal collecting system, ureter, and bladder while preserving percutaneous access, unlike a Double-J stent that is entirely internal.