The invention relates to a suction stent for introduction into a hollow organ of the human or animal body, preferably into the gastrointestinal tract, in particular the intestine, comprising a tubular hollow body which is open in the longitudinal direction and made of biocompatible material, the tubular hollow body having a fixed diameter at least in its central portion; and a porous shapeable material, preferably a sponge material, which is biocompatible and shapeable in the radial direction, the porous shapeable material radially sheathing the tubular hollow body at least in a section of the tubular hollow body. Further, the invention relates to a method for sealing a leakage, especially an anastomosis, of the hollow organ.