15. An implant adapted to be implanted in a spine of a patient comprising: a shield with a shield cavity; a deflection rod that is mounted in said shield cavity; said deflection rod including an inner rod made of a superelastic material; said inner rod having a first end and a second end extending from said cavity; said deflection rod including an outer shell covering said inner rod; said outer shell comprised of a bio-compatible polymer; said outer shell being cone-shaped; said outer shell decreasing in size in a direction toward said second end of said inner rod; said deflection rod able to be deflected in said shield cavity and the motion of said deflection rod being limited by contact with said shield; said shield cavity increasing in size in a direction toward said second end of said inner rod; and a mount extending from said shield, said mount adapted to be connected to another bone implant.
16. The implant of claim 15 including: a connected located at said second end of said inner rod of said deflection rod; said connector located adjacent to said outer shell; said connector extending from said shield; and a rod connected to said connector.