Patent ID: 9693831
Date: 2017-07-04
CPC Classifications: A61B,G06T

Claim:
1. A method to produce an ideal curvature of a rod (TV) for vertebral osteosynthesis equipment designed to correct a vertebral column (CV) of a patient, the method comprising the following steps: a) taking a sagittal preoperative x-ray (RS) of the vertebral column (CV) extending from the cervical vertebrae to femoral heads; b) on the x-ray (RS), identifying: c) tracing a first curved segment (SC d) tracing a second curved segment (SC e) calculating a correction O f) pivoting portion P g) recalculating said first and second curved segments (SC h) calculating a length of a vertebral segment to be corrected, therefore a length of each rod (TV) to be implanted, the calculation is made by; i) for each vertebra of that segment, calculating the distance (DL obtaining the same distance (DL j) displacing the curvature segments determined in step g), extending over the vertebral segment to be corrected determined in step h), over the distances (DL k) determining a diameter of the rod TV based on step j); l) establishing a curvature of the rod of step k) according to the shape of said sagittal curvature segment in said displacement position, recalculated in step j); m) manufacturing the rod according to step l).