A<unk>  is a<unk><unk>  intended for treating strictures of the ureter. In fact it is a double J stent on which a<unk>  is mounted. It is connected to a delivery device (pusher) to introduce it from the bladder into the ureter. The system comprises a non-return valve device, and a pusher with a stylet and two ports. The side port is for injecting contrast agent to inflate the<unk> , while the straight port is for the guidewire. The<unk>  has a relatively large-diameter central lumen and a shaft of 2 mm (6 Fr.). The<unk>  is in two sections: a long narrow section or shaft and a larger cranial bulb. The larger cranial bulb prevents distal migration, while the longer narrow section maintains the increased diameter of a predilated stricture in the ureter section.
Ureteric balloon catheter
Ureteric stent
Ureterocutaneostomy
Ureteroureterostomy
Ureterostomy
Penrose drain
Foley catheter
Percutaneous nephrostomy