The present invention relates, in general, to ultrasonic surgical instruments and, more particularly, to an intracorporeal ultrasonic surgical instrument for sonodynamic therapy. The pen housing is movably connected to the plotter and is provided with a fixing frame. The lines of weakness and tear initiation means are disposed such that activation of the tear initiation means causes controlled tearing of all the film layers along the lines of weakness. The blocks of requested data can then be reassembled at the WWAN device before being transferred to the device requesting the file.