Patent ID: 8439828
Filing Date: 2013-05-14
Classification: A61B

Abstract:
1. A treatment endoscope, comprising: an insertion section elongated along a longitudinal axis; an arm section; a first bending section which is capable of being bent, disposed on the arm section; a second bending section which is capable of being bent, disposed on a distal end of the insertion section, wherein the arm section is attached to a distal end of the second bending section; a first rotating member configured to make the first bending section bent, which is capable of rotating around a predetermined rotation axis and has a first outer surface perpendicular to the predetermined rotation axis; a second rotating member configured to make the second bending section bent, which is capable of rotating around the predetermined rotation axis and has a second outer surface approximately parallel to the first outer surface; a first operation section for rotating the first rotating member so that the first bending section bends; a second operation section for rotating the second rotating member so that the second bending section bends; and an interlock mechanism which is capable of switching between an unlinked state and a linked state, wherein the unlinked state is that the second rotating member is capable of rotating with respect to the first rotating member by means of the first outer surface and the second outer surface being separated from each other so that the second bending section bends independently of the first bending section by operating the second operation section, and the linked state is that the second rotating member rotates by a friction force acting on between the first outer surface and the second outer surface corresponding to a torque generated by the first rotating member rotating by operating the first operation section by means of the first outer surface and the second outer surface being in contact with each other so that the first bending section bends with the second bending section bending by operating the first operation section.