must also be presented above the link connector 102 the surgeon presents and approaches the gripping device 1 so that the retaining branches 4 d 4 e of the guide body 4 are resting against the upper edge of the u shaped branches of the link connector 102 in this position one notes that the recesses 4 b 4 c of the guide body 4 are within the projection of the openings of the u shaped connector 102 to allow for the passage of the connecting rod 104 the surgeon then bears down on the gripping device 1 guided along the u shaped link connector 102 in this way the flexible tabs 5 a 5 b of the sleeve 5 deform around the link connector 102 by clipping into the blind holes 105 of the link connector the gripping device 1 is then fixed onto the link connector 102 of the pedide screw 103 then the surgeon actuates the knob 7 d of the guide handle 7 in order to move the push tube for the rod 8 with respect to the guide body 4 and thus with regard to the link connector 102 of the pedicle screw 103 the push tube for the rod 8 enters into contact with the connecting rod 104 due to its seats 8 d and pushes the latter in a centered manner into.