Rotatable sphincterotome is inserted into a flexible endoscope for orienting the distal cutting wire tip of the rotatable sphincterotome in a twelve o'clock position, where the distal cutting wire tip cuts the sphincter muscle of a patient. It has a housing and a flexible tubular member protruding from the housing. A slidable member is slidably connected on the housing for moving the distal cutting wire tip in a longitudinal direction to cut the sphincter muscle.

A recliner is an armchair that reclines when the sitter lowers the chair's back and raises its front. It has a backrest that can be tilted back, causing a footrest to extend from the front.