A surgical clip (5) is provided for clipping a tubular structure (9) in vivo to ligate the tubular structure. The clip comprises first and second clip portions (6, 7). A hinge portion (8) is provided connecting the clip portions together and to enable the clip portions to be hinged together from an open...http://www.google.es/patents/US20060200179?utm_source=gb-gplus-sharePatente US20060200179 - Surgical clips without protusions
