Abstract: Basket type grasping forceps includes sheath, main body section which has distal and proximal end inserted through sheath, and manipulation sections fixed to sheath which proximal end of main body section is attached. Main body section includes basket section provided at distal side of main body section, and is configured to hold foreign substance, first wire provided at proximal side of basket section and is fixed to basket section, and removal mechanism attached to basket section and moves foreign substance in basket section. Basket section includes plurality of basket wires and fixing member. Removal mechanism includes slide sleeve and second wire. Slide sleeve is disposed at distal end of basket section in state which plurality of basket wires are spread, and foreign substance captured by basket section is discharged from opening formed at proximal side, by moving slide sleeve to proximal side and reducing a diameter of basket section.

Abstract: Basket type grasping forceps includes sheath, main body section which has distal and proximal end inserted through sheath, and manipulation sections fixed to sheath which proximal end of main body section is attached. Main body section includes basket section provided at distal side of main body section, and is configured to hold foreign substance, first wire provided at proximal side of basket section and is fixed to basket section, and removal mechanism attached to basket section and moves foreign substance in basket section. Basket section includes plurality of basket wires and fixing member. Removal mechanism includes slide sleeve and second wire. Slide sleeve is disposed at distal end of basket section in state which plurality of basket wires are spread, and foreign substance captured by basket section is discharged from opening formed at proximal side, by moving slide sleeve to proximal side and reducing a diameter of basket section.

Abstract: A drainage tube retainer 1 as an endoscopic treatment instrument includes a guide catheter 10 for slidably supporting a drainage tube 6 retained in a live organ through a channel; a pusher tube 11 disposed in the exterior of the guide catheter 10 and slidably supported by the guide catheter 10; and a pusher cap 13 provided to the pusher tube 11 for positioning the pusher tube 11 relative to the endoscope so that a direction in which the pusher tube 11 is inserted through the channel substantially coincides with a direction in which the guide catheter 10 is retracted from the pusher tube 11.