Endoscope with a bending section having a disc for fixing a steering wire

Abstract

An endoscope includes a distal tip unit, a handle, a shaft including a bending section made of a first material, and a steering wire for controlling a bending movement of the bending section. The bending section has segments, an inner lumen accommodating a working channel, and steering wire lumens adapted for accommodating the steering wire. The endoscope further includes a disc made of a second material which is different from the first material. The disc is arranged at a distal end of the bending section adjacent a lumen end of the steering wire lumens and has a plurality of openings including steering wire lumen openings configured for guiding the steering wire coming from the steering wire lumens therethrough, and locking openings configured for threading or twisting the steering wire therethrough. The steering wire is locked to the disc by the threading or twisting of the steering wire through the openings.