Trapezoid Basket is designed for the crushing and removal of stones in the biliary duct.Distal side-port guidewire channel facilitates duct access. The RX Biliary System helpsput the physician in controlof the guidewire.  Tip disengages to facilitate basket removal ifstone does not break, helping to reduce risk of basket impaction. Injection with wire in place accommodates cholangiography withoutdevice exchange.