INTERVERTEBRAL IMPLANT FOR SPINE FUSION

摘要

A HELICOID CYLINDRICAL INTERVERTEBRAL IMPLANT (1) FOR FUSION OF VERTEBRAL BODIES COMPRISING OF AN EXTERIOR CLOCKWISE THREAD (2) COUPLED TO AN INTERIOR ANTICLOCKWISE THREAD (3) FORMING A DOUBLE HELIX THREAD FOR ATTACHING SAID IMPLANT (1) TO THE VERTEBRAE (5, 6), AND A CIRCULAR HOLE (4) EXTENDING THROUGH SAID IMPLANT (1) FOR RECEIVING A ROD THROUGH SAID IMPLANT (1) AND ALLOWING BONE GROWTH INTO THE CIRCULAR HOLE (4).