Tissue welding and cutting apparatus

[Subject] Operation efficiency of blood vessel collection equipment is enlarged, and there is the necessity of guaranteeing the externally caused injury of the smallest quantity to a circumference organization, performing fixed seal of the cut blood vessel end simultaneously. [Solution means] The equipment for surgery equipped with the long and slender shaft to which at least 遠 of a shaft has one pair of jaw parts (40, 42) which carry out movable relatively at an end for cutting and welding a blood vessel, and method. One 1st heater element (46) of a jaw part is heated to the 1st temperature, forms a welding area, heats the 2nd heater element (48) to the 2nd temperature, and cuts an organization in a welding area. A control handle (38) is equipped with the control section which opens and closes a jaw part, and is equipped with the actuator which sends current through the 1st and 2nd heater elements. Electrical connection of the 1st and 2nd heater elements is carried out in series, and the 1st heater element branches so that the abbreviation half of current may be passed as the 2nd heater element. [Selection figure] Fig. 1C