Flexible tube for an endoscope and an endoscope equipped with the flexible tube

摘要

A flexible tube for an endoscope includes a tubular core member, and an outer cover provided around the core member, the outer cover being formed of a material containing as a major component thereof styrene-ethylene.butylene-styrene block copolymer. The material constituting the outer cover further contains polyolefin. The amount of the polyolefin contained in the material is 5 to 70 parts by weight with respect of 100 parts by weight of the styrene-ethylene.butylene-styrene block copolymer. The polyolefin is mainly constituted from polypropylene. The average thickness of the outer cover is in the range of 0.08 to 0.9 mm.