Abstract: 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 clip condition to a closed clip condition thereby to ligate a tubular structure placed between the clip portions. A lock is provided for locking the clip portions together in the closed clip condition. In the closed clip condition the clip has a substantially smooth external profile, for example including blunt ends (21), so as to reduce the possibility of the clip (in use) eroding surrounding tissue structures.

Abstract: A medical device comprises first and second lamellar portions joined by a connecting bridge. The device is implanted during primary varicose vein surgery such that the first and second portions are on opposite sides of the cribriform fascia. The device acts as a barrier to neo-vascularisation to avoid recurrent varicose veins.