Endoscopic forceps with a slidable coaxial cable

摘要

An object of the present invention is to provide a forceps which has a non-complicated configuration and can be reduced in diameter to be applicable to an endoscope. The present invention provides an endoscopic forceps in which a movable blade electrode and a fixed blade electrode form a pair of electrodes, wherein
the fixed blade electrode fixed to a sheath conduit is arranged to be electrically contacted onto an external electric conductor of a coaxial cable in the sheath conduit;
a force application point of the movable blade electrode is connected to a center electric conductor of the coaxial cable, a pivot point of the movable blade electrode is provided on the movable blade electrode which is turnably connected to an electric insulator fixed to the fixed blade electrode or the sheath conduit;
the coaxial cable is slid with respect to the sheath conduit so that parallel moving added to the coaxial cable is transmitted to the movable blade electrode as turnable moving about the pivot point via the force application point of the movable blade electrode to open and close the movable blade electrode and the fixed blade electrode; and
a high frequency wave can be applied between the movable blade electrode and the fixed blade electrode via the external electric conductor and the center electric conductor of the coaxial cable.