Patent ID: 6273887
Filing Date: 2001-08-14
Classification: A61B

Abstract:
A high-frequency treatment tool comprising:an insertion portion for insertion into a body;a pair of gripping portions arranged at a distal end portion of said insertion portion and having gripping surfaces for gripping vital tissue;a driving mechanism for opening/closing said pair of gripping portions between a closing position where said pair of gripping portions abut against each other and an open position where said pair of gripping portions are separated from each other;electrode portions formed on the gripping surfaces of said gripping portions, to which a high-frequency current is flowed to coagulate/incise the vital tissue gripped by said gripping portions; andshort circuit prevention means for preventing a short circuit between said electrode portions of said pair of gripping portions when said pair of gripping portions are placed at least at the closing positions, said short circuit prevention means being a solid insulating member coupled to at least one of said pair of gripping portions, said solid insulating member having a thickness at at least one point which is equal to a thickness of the at least one of said pair of gripping portions so to preclude electrical contact between said pair of gripping portions.