Patent ID: 7972333
Filing Date: 2011-07-05
Classification: A61B

Abstract:
1. A high-frequency incision tool for endoscope comprising: a sheath inserted through and extracted from a treatment tool guide lumen of an endoscope; an operation unit connected to a rear of the sheath; a pair of electrode blades disposed in parallel and oriented forward at a front position of the sheath, the pair of electrode blades being adapted to open and close through remote manipulation of the operation unit; and a planar portion provided at a tip of at least one of the electrode blades, the planar portion having a projected area, when viewed from the front, larger than a cross sectional area of the electrode blade at a portion close to a front end thereof, wherein the planar portion is formed of an electrically insulating member which is attached to the most distal tip of the electrode blade and encloses the most distal tip of the electrode blade and wraps around a portion of at least one adjacent side of the electrode blade.