Patent ID: 6702737
Filing Date: 2004-03-09
Classification: A61B

Abstract:
A bending manipulation device for an endoscope having a main control portion, comprising:a pulley adapted for inclusion in, and to be given a rotary motion by said main control portion; and at least a pair of control wires, each of which winds one end portion thereof on to said pulley and extends out the other end portion thereof from said pulley such that one of the extended control wires is taken up by said pulley while the other of the same is paid out from said pulley corresponding to the rotation of said pulley, thereby enabling the bending manipulation over the bending portion to be carried out; said pulley having at least one common groove formed along the periphery of said pulley to continuously extend in the peripheral direction of said pulley, and wound in common by said pair of control wires, wherein said common groove is formed as a spiral groove slanting in the axial direction of said pulley.