Patent ID: 6572539
Filing Date: 2003-06-03
Classification: A61B

Abstract:
A linear transmission member driving unit for an endoscope, comprising:a motor provided in an operating unit in order to drive an object at a tip end portion of said endoscope; a linear transmission member for transmitting rotation of said motor to a driving member at said tip end portion; and a protective tube for enveloping said linear transmission member, arranged from said tip end portion to said operating unit, wherein said protective tube is divided into a front-side tube and a rear-side tube having a larger inner diameter than said front-side tube, and said front-side tube and said rear-side tube are connected together within said operating unit, and wherein said linear transmission member is divided into a front-side transmission member and a rear-side transmission member having a larger outside diameter than said front-side transmission member, and said front-side transmission member and said rear-side transmission member are connected between the tip end portion and said operating unit.