A method of fastening biological tissues using a fastener having two opposing heads joined by a connector. The fastener is installed by driving the heads through needles having a slotted bore. The needles are pierced through the tissues and rods are then used to drive the heads through the needle bores....http://www.google.es/patents/US4736746?utm_source=gb-gplus-sharePatente US4736746 - Method of fastening tissues
