an endoscope , particularly for use as a uretero - renoscope , includes a catheter head piece with a flexible catheter body in the form of a semi - flexible hose having a highly flexible tip , the hose being divided into internal axially extending conduits by interior walls which bisect the interior of the catheter body in a asymmetric fashion so that the conduits are not of equal size . the head piece is in the form of an ergonimcally shaped rod - like handle which surrounds an eye piece and is disclosed coaxial with the catheter body .