A method for installing a stent in a vessel utilizes a single balloon catheter for both low pressure predilation at a relatively small diameter to open the lesion sufficiently to allow insertion and deployment of the stent across the lesion and for subsequent high pressure embedding of the stent in the vessel wall. The central combination of the photovoltaic device structure includes a back reflector layer, active photovoltaic material and transparent electrode. A one-dimensional scanning is performed in a scanning-line direction by setting the Y-direction scanning gain at zero at the time of acquiring the SEM image, and a two-dimensional image is created by arranging image information, which is obtained by the scanning, in a time-series manner in the Y direction. The implanted electrode devices can be variously delivered to the tissue, for example, by detaching the electrode devices from one or more delivery devices. The second end of the plunger rod may extend out through the top opening of the compressible reservoir. In a medium that recordsplays back data including video data and control information, the control information includes information for accessing a specific portion of the video data.