Invention Grant
- Patent Title: Polyaxial pedicle screw having provisional fastening means
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Application No.: US15432111Application Date: 2017-02-14
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Publication No.: US10555759B2Publication Date: 2020-02-11
- Inventor: Sven Krüger
- Applicant: Aesculap AG
- Applicant Address: DE
- Assignee: Aesculap AG
- Current Assignee: Aesculap AG
- Current Assignee Address: DE
- Agency: RatnerPrestia
- Priority: DE102011053295 20110906
- Main IPC: A61B17/70
- IPC: A61B17/70 ; A61B17/00

Abstract:
A polyaxial pedicle screw includes a screwed shaft section for anchoring the pedicle screw in a vertebra, on one axial end of which a shaft head is configured which is coupled in a rotating and/or pivoting manner as well as in a tensile-force transmitting manner to a receiving sleeve for a longitudinal support. The receiving sleeve has a fastening means for selective positional fastening of the receiving sleeve with respect to the shaft section, the fastening means at least consisting of an inlay/pin mounted in the receiving sleeve and acting on the shaft head, and a locking element acting on the inlay/pin. The inlay/pin is configured with attachment points or engagement elements, which are not covered or overlapped by the locking element, for the provisional introduction of a compressive force on the inlay/pin parallel to the locking element.
Public/Granted literature
- US20170172627A1 POLYAXIAL PEDICLE SCREW HAVING PROVISIONAL FASTENING MEANS Public/Granted day:2017-06-22
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