An intervertebral spacer device having a pair of opposing plates for seating against opposing vertebral bone surfaces. Each of the opposing plates has an external surface with a deflectable wire mesh thereon, into which the bone can readily grow. ...http://www.google.de/patents/US20040093088?utm_source=gb-gplus-sharePatent US20040093088 - Intervertebral spacer device having a slotted partial circular domed arch strip spring
