A locking plate system has multiple locking pins, each with one end formed as a screw to lock in the pending fixation bones or vertebral tubercles, with another end defining rectangular or similarly shaped locking post having a threaded locking end. Near the locking post end, there is formed a stopping...http://www.google.fr/patents/US5085660?utm_source=gb-gplus-shareBrevet US5085660 - Innovative locking plate system