An element provided with a layer based on fibrin- or fibrinogen-containing material, said element comprising (a) a hydrophobic or substantially hydrophobic support, which has a porous part with a thickness of 0.1 to 5 mm, and whose pores, extending across its thickness have a node spacing of 5 to 100...http://www.google.co.uk/patents/US7226657?utm_source=gb-gplus-sharePatent US7226657 - Element provided with a fibrin layer, preparation and use thereof
