A tubular anvil sleeve is defined by at least two sleeve portions pivoted to each other for movement about an axis radially outwardly offset from an axis of the tubular anvil sleeve in its closed position. A tubular graft is inserted into the tubular anvil sleeve and a projecting end portion of the graft...http://www.google.de/patents/US7112212?utm_source=gb-gplus-sharePatent US7112212 - Method of performing anastomosis of blood vessels
