A catheter includes a plurality of primary leads to deliver energy for ligating a hollow anatomical structure. The mobile station apparatus includes a control unit which determines whether to reflect an estimated phase result of the signals transmitted from the two antennas or not, depending on a channel type of signals transmitted from the wireless base station apparatus. The movable optical unit located on the optical path of one of collimators moves in and out the optical path incident from an auxiliary collimator to switch the optical path when the one of the collimators has a problem. A wheel upright, with an axle aperture extending through it, is rigidly attached near to the second end of the foreaft link and located above the foreaft link. 01-1 wt % with respect to the total weight of the feed composition.