COUNTER ELECTRODE PLATE FOR ELECTRIC KNIFE AND ELECTRIC KNIFE APPARATUS USING THE SAME

摘要

PURPOSE:To suppress the increase of current density in a non-release part if partially released by forming a sticking layer having anisotropic conductivity showing high conductivity in the thickness direction thereof to the surface layer part of an counter electrode plate and successively laminating a semiconductive layer, a conductive layer and an insulating layer to the rear of the sticking layer. CONSTITUTION:The first semiconductive layer 31, the first conductive layer 41, the second semiconductive layer 32, the second conductive layer 42 and an insulating layer 5 are successively laminated to the rear of the sticking layer 2 of a counter electrode plate 1 through sticking layers 6 and, when the counter electrode plate 1 is partially released, the current-carrying region in the first semiconductive layer 31 of the circuit current from a living body is limited to a non-release part by the enhancement of the anisotropic conductivity possessed by the sticking layers 2, 6 on the surface and rear sides of said layer 31 and the enhancement of the conductivity due to the compression of the sticking layers 2, 6 in the non-release part and the current-carrying region of the second semiconductive layer 32 is also limited to the non-release part and the periphery thereof by the enhancement of the anisotropic conductivity of the respective sticking layers 6 on the surface and rear sides of said layer 32 and that of the conductivity in the non-release part and the substantial resistance values of both semiconductive layers 31, 32 increase and the circuit current is reduced and the increase of the current density in the non-release part is suppressed.