A device for the preparation of a graft in which a flexible tubular porous base member is suspended within a tubular enclosure with means for sealing the enclosure and for the introduction of blood while removing air from the enclosure co-incident with the introduction of blood and in which the porous...http://www.google.fr/patents/US4108161?utm_source=gb-gplus-shareBrevet US4108161 - Graft forming device
