公开(公告)号：US20180317748A1

公开(公告)日：2018-11-08

申请号：US16038442

申请日：2018-07-18

Applicant: OLYMPUS CORPORATION

Inventor： Keisuke HATANO ,  Shun NAGASAWA

IPC: A61B1/005 ,  A61B1/00 ,  G02B23/24 ,  A61B1/01

CPC classification number: A61B1/0052 ,  A61B1/00 ,  A61B1/00066 ,  A61B1/00131 ,  A61B1/01 ,  G02B23/24 ,  G02B23/2476

Abstract: An endoscope includes a bending operation apparatus including: a rod-like shaft section that is standing perpendicularly from one surface of an operation section and capable of being tilted; and a cover member including a central section that is placed to externally cover the rod-like shaft section in a water tight manner, a peripheral section that closes in a water tight manner an opening portion in which the rod-like shaft section is disposed, and an intermediate section provided between the peripheral section and the central section, wherein the cover member of the bending operation apparatus includes a deformation restricting section that is a tubular section formed along a longitudinal axis of the rod-like shaft section and placed to externally cover an intermediate portion of the rod-like shaft section, and restricts outward expansion of the intermediate section.