Locking compression members for use with bone anchor assemblies and methods
US9259247B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2013 |
| Grant date | Feb 16, 2016 |
| Priority date | — |
| Expiry date | Mar 14, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00526
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Various exemplary methods and devices are provided for fixing bone anchors to bone. In general, the methods and devices can allow for a bone anchor to be fixed to a bone at a desired angle to a surface of the bone. In an exemplary embodiment, a bone anchor assembly is provided that includes a bone anchor configured to engage bone, a receiver member for seating a head of the bone anchor, and a compression member for securing the bone anchor at fixed angle with respect to the receiver member when the compression member is seated within the receiver member. Corresponding engagement features of the compression member and the receiver member can be engaged in a secured configuration to inhibit or prevent removal of the compression cap from the receiver member and optionally to substantially prevent longitudinal and/or rotational movement of the compression member with respect to the receiver member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.