The present patent application, which belongs to the field of medical science and more specifically to the field of surgical articles for treating bones or joints and devices designed especially therefor, proposes a guide device for attaching flexible plates for spinal implants. The prior art anticipates devices for attaching implants to patients' vertebrae comprising pedicle hooks and screws that have the drawback of not enabling the screws to be applied to the vertebra at an angle, as well as including guide devices that are insecure and unsophisticated. The object of this patent application was developed in order to overcome these drawbacks, comprising a guide device for transfixing flexible plates (1) comprising platforms (13) and (14) that have a box shape on one side through which the set of flexible plates (3) slides, and an orifice (16) on the other side for attachment to the dual intermediate connector (5) that bears the pedicle screw (7). Said set of flexible plates (3) is formed by two superposed plates (4) that have longitudinal apertures (9) where same are attached by means of a fastening device (11) enabling same to slide on one another.
