The elongated stabilization member comprises a composite rod (R) having a uniform cross-section essentially throughout its length. The rod (R) has at least first and second segments (A, B, C) each of which has a different modulus of elasticity. Preferably the rod (R) is comprised of plastic with carbon...http://www.google.de/patents/US20080262548?utm_source=gb-gplus-sharePatent US20080262548 - ELONGATED STABILIZATION MEMBER AND BONE ANCHOR USEFUL IN BONE AND ESPECIALLY SPINAL REPAIR PROCESSES
