Invention Grant
- Patent Title: Polyaxial bone anchoring device and system including an instrument and a polyaxial bone anchoring device
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Application No.: US17365430Application Date: 2021-07-01
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Publication No.: US12070248B2Publication Date: 2024-08-27
- Inventor: Lutz Biedermann , Timo Biedermann , Bernd Fischer
- Applicant: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
- Applicant Address: DE Donaueschingen
- Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
- Current Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
- Current Assignee Address: DE Donaueschingen
- Agency: Lewis Roca Rothgerber Christie LLP
- Priority: EP 160167 2018.03.06
- Main IPC: A61B17/70
- IPC: A61B17/70 ; A61B17/56 ; A61B90/00

Abstract:
A polyaxial bone anchoring device includes a receiving part with an upper member having a first end, a second end, and a recess at the first end for receiving a rod, and a lower member connectable around the second end of the upper member, and a pressure member positionable in the upper member to exert pressure on a head of a bone anchoring element. The lower member is movable from a first position where the head is pivotable, to a second position closer to the first end of the upper member where an angular position of the head is locked while the recess remains vacant or unobstructed. When the lower member is at the second position, at least part of the lower member is aligned axially with at least part of an end face at the second end of the upper member.
Public/Granted literature
- US20210401466A1 POLYAXIAL BONE ANCHORING DEVICE AND SYSTEM INCLUDING AN INSTRUMENT AND A POLYAXIAL BONE ANCHORING DEVICE Public/Granted day:2021-12-30
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