Patent ID: 6689122
Filing Date: 2004-02-10
Classification: A61B

Abstract:
An endoscopic instrument comprising:a flexible insert section capable of being passed through a forceps channel of an endoscope, an opening wire located in a bore of the insert section and movable in the axial direction of the insert section; an operating section connected to the proximal end of the insert section and used to move the operating wire forward and backward; and a treatment section attached to the distal end of the insert section and adapted to be operated as the operating wire is moved forward and backward, wherein the operating wire is composed of at least one wire member, a resin member is located on or adhered to at least a part of the outer surface of the operating wire, at least the inner surface of the insert section is formed of a metallic coil, and a micro-flat portion is provided at least on that surface portion of an element wire of the coil which faces the operating wire to cover substantially an overall length of the coil.