Abstract: A device for percutaneous transpedicular fusion includes at least two straight pedicular cannulas arranged respectively on the upper or lower vertebra, or on the two vertebrae of the spinal segment, at least one guide pin with a curved profile, which is implanted in the endplate of the corresponding vertebra through the corresponding pedicular cannula, of a flexible cannulated drill bit guided around the corresponding guide pin and driven in back and forth movements by a cannulated drive system to nibble out gradually slots in the lower and upper endplate of each vertebra and reduce to flaps the nucleic tissues of an intervertebral disk for the production of the intersomatic space, of an injection device connected to one of the straight pedicular cannulas for the injection of the graft into the intersomatic space, and closing devices that are screwed into the holes left free after retraction of the straight pedicular cannulas.

Abstract: The flexible and fluted cutting device for drilling and/or milling a space in bone tissue or connective tissue includes, on the one hand, a cutting element (2) made up of a rigid tube (20) secured at one of its ends to a supple and flexible connection (21) extended by a fluted cutter (22) and at the opposite end to drive element provided with a safety connector (23) for uncoupling the cutting device and, on the other hand, a guide element (3) providing the positioning and angular deformation of the cutting element (2) within the bone tissue or connective tissue.

Abstract: The nucleotomy device makes it possible to produce a nuclear space Es in an intervertebral disc Di using a transosseous approach previously pierced in the body of a vertebra Va. The device includes a tool holder (2) provided with first connection elements (3) ensuring the placement of an electric rotary driving motor (4), second connection elements (5) for the placement of a blade cutting tool (6), driving elements (7) imparting rotational and longitudinal translational movements to the cutting tool (6), and injection and suction elements (8) making it possible to evacuate the debris from the nucleus resulting from cutting when it is formed inside the intervertebral disc.

Abstract: A nucleus implant includes a core (10) arranged inside a nucleus pulposus space (Es) obtained after nucleotomy of the intervertebral disk (Di) and at least one extension (11) penetrating inside at least one channel (Co) formed in the vertebral body of the corresponding vertebra (Va, Vb) to strengthen and ensure a connection between the nucleus implant (1) and the bone body of the vertebra (Va) and/or (Vb) through the diffusion or migration of the viscoelastic material making up the nucleus implant in the cancellous bone of the vertebra.

Abstract: The flexible and fluted cutting device for drilling and/or milling a space in bone tissue or connective tissue includes, on the one hand, a cutting element (2) made up of a rigid tube (20) secured at one of its ends to a supple and flexible connection (21) extended by a fluted cutter (22) and at the opposite end to drive element provided with a safety connector (23) for uncoupling the cutting device and, on the other hand, a guide element (3) providing the positioning and angular deformation of the cutting element (2) within the bone tissue or connective tissue.

Abstract: A device for percutaneous transpedicular fusion includes at least two straight pedicular cannulas arranged respectively on the upper or lower vertebra, or on the two vertebrae of the spinal segment, at least one guide pin with a curved profile, which is implanted in the endplate of the corresponding vertebra through the corresponding pedicular cannula, of a flexible cannulated drill bit guided around the corresponding guide pin and driven in back and forth movements by a cannulated drive system to nibble out gradually slots in the lower and upper endplate of each vertebra and reduce to flaps the nucleic tissues of an intervertebral disk for the production of the intersomatic space, of an injection device connected to one of the straight pedicular cannulas for the injection of the graft into the intersomatic space, and closing devices that are screwed into the holes left free after retraction of the straight pedicular cannulas.

Abstract: The drilling device for forming an osseous channel (2) with a curved profile (2b) via a straight cannula (6) previously fixed in the body of a vertebra (3) with a cortical plateau (4) of a spinal segment (Sr) of a vertebral column (Cv) includes a guide pin (8) which is provided from a guide pin kit and has at one of its ends a curved profile (8a) of which the radius of curvature R is less than 20 millimeters, and a sharpened tip (8b) arranged in a direction defined by an angle Y which is less than 90 degrees to the longitudinal axis of said pin, the profile of said guide pin (8) making it possible to define, after insertion thereof into the body of the vertebra (3), two contact points a and b ensuring the guidance of the free end of an articulated drill bit (10) so as to position said free end in a direction substantially perpendicular to that of the cortical plateau (4) of the vertebra (3) to be drilled.

Abstract: The drilling device is composed of an articulated drill (1) provided with a metal tube (10) including, along its longitudinal axis XX?, and at one of its ends, fixing elements (11) that cooperate with a device (2) for driving it in an oscillatory movement, while the other end includes a profile (12) with a succession of alternately concave and convex loops (13) ensuring the deformation of the profile along a radius of curvature r, and at least one series of teeth (15, 16) with cutting edges (17, 18).

Abstract: The nucleotomy device makes it possible to produce a nuclear space Es in an intervertebral disc Di using a transosseous approach previously pierced in the body of a vertebra Va. The device includes a tool holder (2) provided with first connection elements (3) ensuring the placement of an electric rotary driving motor (4), second connection elements (5) for the placement of a blade cutting tool (6), driving elements (7) imparting rotational and longitudinal translational movements to the cutting tool (6), and injection and suction elements (8) making it possible to evacuate the debris from the nucleus resulting from cutting when it is formed inside the intervertebral disc.