Spinal fixation system

Details Spinal fixation system Spinal fixation system

A - Human Necessities

61

B

A61B 17/70 (2006.01) A61B 17/86 (2006.01)

Patent

CA 2113112

A spinal fixation system comprises an elongated fixation plate (13) having an elongated slot (21) with a number of concave depressions (28, 25) formed at the top and bottom surfaces (19, 17) of the plate. The system further includes a pedicle screw (40) and a nut (32) for load transmission between a vertebra and the plate. The pedicle screw includes a threaded nut engaging portion (42), a threaded bone engaging portion (44) and an intermediate portion (46) therebetween which has rigid upper and lower arcu- ate surfaces (47) that are complementary to the concave depressions in the plate. The nut also includes a rigid lower arcuate sur- face (36) which is complementary to the upper concave depressions of the plate. In one assembled configuration the plate is clamped between the upper arcuate surface of the pedicle screw and the nut. In an alternative embodiment of the pedicle screw (70), the intermediate portion has an upper and lower arcuate surface (79, 77) of different spherical radii of curvature.

Affiliated with

Also associated with

Rating

Spinal fixation system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spinal fixation system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spinal fixation system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1622164