Patent ID: 7125408
Filing Date: 2006-10-24
Classification: A61B

Abstract:
1. A high-frequency knife, comprising: an electrically insulating flexible sheath having a distal end and a proximal end; an operation member inserted into the sheath to be movable in an axial direction therein; an operation section provided on the proximal end of the sheath, the operation section having a slider part which moves the operation member in the axial direction of the sheath; and an electrode part provided on the distal end of the operation member, at least a part of the electrode part being axially projected from and retracted in the distal end of the sheath, the electrode part having a rod electrode part extending in the axial direction of the sheath and a plate electrode disposed on a distal end of the rod electrode part, the plate electrode part including a plane surface part extending in a direction crossing the axis direction of the sheath; and a plurality of electro-conductive projecting portions formed on the plate electrode part and projecting in an extending direction of a plane surface of the plate electrode part, the plurality of electro-conductive projecting portions projecting in directions different from each other.