Patent ID: 7833153
Filing Date: 2010-11-16
Classification: A61B

Abstract:
1. An endoscope comprising: an operation portion; an elongate insertion portion whose one end is connected to the operation portion rotatably in a direction around a central axis of the insertion portion with respect to the operation portion; an operation portion side member provided in the operation portion; an insertion portion side member provided in the insertion portion and rotatable integrally with the insertion portion; an elastic member provided in one of the operation portion side member and the insertion portion side member; a frictional surface which is provided in the other of the operation portion side member and the insertion portion side member and which generates rotation resisting frictional force between the frictional surface and the elastic member when the frictional surface is pressed onto the elastic member and the insertion portion is rotated; and a movement adjusting mechanism which relatively moves the operation portion side member and the insertion portion side member to continuously adjust press force acting between the elastic member and the frictional surface while deforming the elastic member.