The present invention is directed to a novel jig and fishing system. A board for driving the sustain electrodes and a switch for supplying a ground voltage is eliminated and accordingly manufacturing cost of driving boards is reduced. 0 or more, a glass transition temperature of 10 to 70\xb0 C. The monitor may dynamically display the progress of the ablation by varying the visual indication. The oscillation element may be an oscillation element using bulk wave oscillation, or an oscillation element using surface wave oscillation.