Application of a "retracting flaps" technique using a device delivery system for endoscopic removal of a pancreatic stent with 10 proximal flaps stuck in the pancreatic duct ▶ Fig. 4 Photographs showing: a a stent flap retracted within the outer sheath (arrow); b the retrieved stent whose flaps were folded in the opposite direction.

▶ Fig. 1 Fluoroscopic images of the procedure. a A screw-shaped dilator was advanced over a 0.018-inch guidewire to contact an incarcerated pancreatic duct stone (arrow). b After advancing the dilator clockwise, it was passed through the stone. c The dislodged stone (arrow) after using the dilator. d The dislodged stone being removed with a mechanical lithotriptor.▶ Fig. 2 Endoscopic image of a removed pancreatic stone.