Patent ID: 7815565

Claim:
A medical apparatus comprising: a flexible sheath sized to receive an endoscope; an end cap having a length less than that of the flexible sheath and disposed at a distal end of the flexible sheath, the end cap adapted to releasably engage the distal end of an endoscope received within the flexible sheath, the end cap having an open distal end and a longitudinal axis, and wherein the end cap comprises a through bore for receiving the distal end of the endoscope to hold the end cap in fixed relationship with respect to the distal end of the endoscope, wherein the end cap has an outer surface, the outer surface having a slot formed therein, the slot disposed radially outwardly of the through bore and the slot inclined radially inwardly from a proximal end of the slot to a distal end of the slot; and a flexible track having a length longer than that of the end cap, wherein the flexible track is configured to engagingly receive and guide an accessory, external to the track, along at least a portion of the length of the flexible sheath, wherein at least a portion of a length of the flexible track is supported along the outer surface of the flexible sheath; and wherein a distal portion of the track extends into the slot in the end cap and is held in a the end cap comprises an outer surface feature for holding the distal portion of the flexible track in a fixed radially inwardly inclined configuration with respect to the longitudinal axis of the end cap.