Patent ID: 8858427
Filing Date: 2014-10-14
Classification: A61B,G02B

Abstract:
1. An endoscope comprising: an insertion portion configured to be inserted into a subject; an image pickup section configured to pick up an image of inside of the subject; an operation portion having an axis in a longitudinal direction set parallel to a central axis of the insertion portion, the operation portion including a distal end surface which is perpendicular to the axis in the longitudinal direction, and the insertion portion being extended from the distal end surface; a grasping portion configured to be able to be grasped by an operator, a first end of the grasping portion being connected to the operation portion at a transition portion, the grasping portion being provided such that an axis in a longitudinal direction of the grasping portion is substantially perpendicular to the central axis of the insertion portion; a protruding portion provided, in a protruded manner, on a surface on an insertion portion side of the grasping portion, the protruding portion extending from the first end towards a second end of the grasping portion, the protruding portion having an inclined surface which forms an acute angle with respect to the central axis of the insertion portion, on the insertion portion side; and a switch portion provided on the inclined surface of the protruding portion and disposed at an angle which makes a right angle with respect to the acute angle, wherein a stepped portion is formed at the transition portion such that the operation portion is configured to have a width at the transition portion which is narrower than a width of the grasping portion at the transition portion with respect to a direction of the axis perpendicular to the central axis of the insertion portion.