An endoscope including a bending portion in an insertion portion comprises multiple pulling members, an operation device, a driving force transfer mechanism and a biasing mechanism. The multiple pulling members are mounted on the bending portion. The operation device generates a driving force for pulling the pulling members in conjunction with a turning operation. The bending portion is bent by the operation device between an approximately straight state and a bending state. The driving force transfer mechanism transfers the driving force generated in conjunction with the turning operation of the operation device to the pulling members. The biasing mechanism provides the driving force transfer mechanism with a biasing force for turning the operation device in a reverse direction to the turning operation direction in a state where the bending portion is bent by turning the operation device.

Title
Endoscope
Application Number
11/906567
Publication Number
20080086031
Application Date
October 3, 2007
Publication Date
April 10, 2008
Inventor
Tae Mitsuya
Agent
Scully Scott Murphy & Presser PC
NY, US
Assignee
Olympus Medical Systems
IPC
A61B 01/00
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