A bone screw having a screw member (1) possessing a threaded section (2) and a head (3) and a receiving part (5) at the head end for receiving a rod to be connected to the bone screw is provided. The receiving part (5) has on open first bore (6) and a substantially U-shaped cross-section having two free...http://www.google.fr/patents/US20020058942?utm_source=gb-gplus-shareBrevet US20020058942 - Bone screw
Numéro de demande: 10/037,698 Numéro de publication: US 2002/0058942 A1 Date de dépôt: 9 nov. 2001 Brevet délivré: US6736820 ( Date de délivrance 18 mai 2004)
