| 摘要 |
An endoscope 1 includes: an insertion portion 2 in which a distal end portion 6 and a bending portion 7 are arranged; and an inclined face 24 that is formed in the distal end portion 6, the inclined face 24 being formed so as to inclinedly intersect with each side face adjoining a distal end face 20a of the distal end portion 6, and being formed substantially orthogonal to a ridge line 24a formed intersecting with the distal end face 20a and to a direction in which the bending portion 7 bends. By contacting against an inner wall of a curved portion of a duct 100 into which the insertion portion 2 is inserted, the inclined face varies a posture thereof so that the insertion portion 2 is rotated and a bending direction of the bending portion 7 matches a curving direction of the curved portion. Thus, the ability of the bending portion of the insertion portion to pass through a curved duct can be improved by means of a simple configuration that does not increase the manufacturing cost. |
