Invention Grant
- Patent Title: Polyaxial bone anchoring device with enlarged pivot angle
- Patent Title (中): 具有扩大枢轴角度的多轴骨锚固装置
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Application No.: US13948700Application Date: 2013-07-23
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Publication No.: US09277942B2Publication Date: 2016-03-08
- Inventor: Lutz Biedermann , Wilfried Matthis
- 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: EP12178289 20120727
- Main IPC: A61B17/86
- IPC: A61B17/86 ; A61B17/70

Abstract:
A polyaxial bone anchoring device includes a receiving part to receive a rod for coupling the rod to a bone anchoring element, the receiving part having a top end and a bottom end, a first passage at the bottom end with a first longitudinal axis, and a second passage at the top end with a second longitudinal axis that intersects the first longitudinal axis, and a compression element, wherein at least one of the receiving part or the compression element has a seat with an opening facing the bottom end, and wherein the compression element is movable relative to the receiving part along the first longitudinal axis between a first position wherein the seat is expandable and configured for insertion of a head of a bone anchoring element and pivoting of the head, and a second position wherein the seat is compressed to lock an inserted head therein.
Public/Granted literature
- US20140031880A1 POLYAXIAL BONE ANCHORING DEVICE WITH ENLARGED PIVOT ANGLE Public/Granted day:2014-01-30
Information query
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