Patent ID: 8100904
Filing Date: 2012-01-24
Classification: A61B

Abstract:
1. A treatment tool for an endoscope, comprising: a flexible sheath configured to be inserted into and ejected from a treatment tool insertion channel of the endoscope, the flexible sheath including a transparent flexible tube provided at least around a distal end of the flexible sheath; a rod-shaped treatment piece arranged into the flexible sheath; an operation wire arranged inside the flexible sheath to move back and forth along an axis line of the flexible sheath, a distal end of the operation wire being connected with the rod-shaped treatment piece such that the rod-shaped treatment piece is projected back and forth from the distal end of the flexible sheath by operating the operation wire; a mobile indicator formed at one of the rod-shaped treatment piece and a portion of the operation wire near the distal end thereof so as to move along with movement of the rod-shaped treatment piece, the mobile indicator being visually recognized through the transparent flexible tube of the flexible sheath from an outside of the flexible sheath; a tubular distal end tip fitted into the distal end of the flexible sheath, the distal end tip being configured such that the rod-shaped treatment piece passes therethrough; and an immobile indicator formed on an outer circumferential surface of the tubular distal end tip, the immobile indicator being disposed inside the transparent flexible tube of the flexible sheath so as to be visually recognized through the transparent flexible tube from the outside of the flexible sheath.