Partially blocked pedicle screw

1. A pedicle screw with a receiving sleeve and a screw head,

wherein the screw head has a pivoting section which is pivotably insertable or inserted in the receiving sleeve and a holding section of the screw head which is insertable or is inserted in a fixed position in the receiving sleeve, wherein the pivoting section and the holding section are integrally connected to each other via at least one web, in such a way that the pivoting section and the holding section are pivotable relative to each other about a pivot axis extending transversely to a longitudinal axis of the screw, wherein the at least one web is a material section arranged between two slots or wedges recessed in the pivoting section or in the holding section; and

wherein the at least one web is corrugated.

2. The pedicle screw according to claim 1 , wherein an end of the at least one web is a pivoted joint at which the at least one web is integrally connected to the holding section or the pivoting section.

3. The pedicle screw according to claim 2 , wherein the pivoting section has a lateral cylinder surface proximally, and the proximal holding section has a corresponding lateral inner cylinder surface distally, or the pivoting section has a lateral inner cylinder surface proximally, and the proximal holding section has a corresponding lateral cylinder surface distally, which correspondingly at least partially overlap in each pivoting position.

4. The pedicle screw of claim 3 , wherein the end of the at least one web is located on a longitudinal axis of the lateral cylinder surface.

5. The pedicle screw according to claim 1 , wherein flanks of the slots or wedges serve as a stop for limiting pivoting of the pivoting section and the holding section.

6. The pedicle screw according to claim 1 , wherein the slots or wedges allow a pivoting angle of at least +/−22°.

7. The pedicle screw according to claim 1 , wherein the slots or wedges and/or two gaps separating the pivoting section and the holding section are machined out by a separation process.

8. The pedicle screw according to claim 1 , wherein the pivoting section is laterally and proximally widened in such a way that the pivoting section at least partially forms a cylinder extending in a longitudinal direction of the screw in order to be supported on an inner surface of the receiving sleeve in a direction of the pivot axis.

9. The pedicle screw according to claim 1 , wherein recesses are provided in the receiving sleeve so that the pedicle screw is movable within the receiving sleeve.

10. The pedicle screw according to claim 1 , wherein pivoting is enabled in the cranial-caudal direction.

11. The pedicle screw according to claim 10 , wherein pivoting is blocked in the medial-lateral direction.

12. The pedicle screw according to claim 1 , wherein the pivoting section and the holding section are manufactured in one piece.

13. A pedicle screw with a receiving sleeve and a screw head,

wherein the screw head has a pivoting section which is pivotably insertable or inserted in the receiving sleeve and a holding section of the screw head which is insertable or is inserted in a fixed position in the receiving sleeve, wherein the pivoting section and the holding section are integrally connected to each other via at least one web, in such a way that the pivoting section and the holding section are pivotable relative to each other about a pivot axis extending transversely to a longitudinal axis of the screw, wherein the at least one web is a material section arranged between two slots or wedges recessed in the pivoting section or in the holding section;

wherein an end of the at least one web is a pivoted joint at which the at least one web is integrally connected to the holding section or the pivoting section; and

wherein the pivoting section has a lateral cylinder surface proximally, and the proximal holding section has a corresponding lateral inner cylinder surface distally, or the pivoting section has a lateral inner cylinder surface proximally, and the proximal holding section has a corresponding lateral cylinder surface distally, which correspondingly at least partially overlap in each pivoting position.

14. The pedicle screw of claim 13 , wherein the end of the at least one web is located on a longitudinal axis of the lateral cylinder surface.

15. A pedicle screw with a receiving sleeve and a screw head,

wherein the screw head has a pivoting section which is pivotably insertable or inserted in the receiving sleeve and a holding section of the screw head which is insertable or is inserted in a fixed position in the receiving sleeve, wherein the pivoting section and the holding section are integrally connected to each other via at least one web, in such a way that the pivoting section and the holding section are pivotable relative to each other about a pivot axis extending transversely to a longitudinal axis of the screw, wherein the at least one web is a material section arranged between two slots or wedges recessed in the pivoting section or in the holding section; and

wherein the pivoting section is laterally and proximally widened in such a way that the pivoting section at least partially forms a cylinder extending in a longitudinal direction of the screw in order to be supported on an inner surface of the receiving sleeve in a direction of the pivot axis.

16. A pedicle screw with a receiving sleeve and a screw head,

wherein the screw head has a pivoting section which is pivotably insertable or inserted in the receiving sleeve and a holding section of the screw head which is insertable or is inserted in a fixed position in the receiving sleeve, wherein the pivoting section and the holding section are integrally connected to each other via at least one web, in such a way that the pivoting section and the holding section are pivotable relative to each other about a pivot axis extending transversely to a longitudinal axis of the screw, wherein the at least one web is a material section arranged between two slots or wedges recessed in the pivoting section or in the holding section; and

wherein pivoting is enabled in the cranial-caudal direction.

17. The pedicle screw according to claim 16 , wherein pivoting is blocked in the medial-lateral direction.