Bone anchors with drag features and related methods
AssigneeMedos International Sarl
InventorsChristopher Ramsay, J. Riley Hawkins, Albert Montello, Joseph Peterson
Life of this patent
Estimating the term…
Loading patent…
AssigneeMedos International Sarl
InventorsChristopher Ramsay, J. Riley Hawkins, Albert Montello, Joseph Peterson
Estimating the term…
Bone anchors and related methods are disclosed herein. In some embodiments, a bone anchor can include a drag interface. Exemplary drag interfaces include (i) friction between a shank and a bushing, (ii) friction between a bushing and a drag ring, (iii) friction generated by a biased saddle, and (iv) combinations of the above. The drag interface can help maintain the relative position between a receiver member and a shank of the bone anchor prior to locking the bone anchor, preventing unintended movement while still allowing free movement when intended by the user. In some embodiments, a bone anchor can include over-rotation blocking features, such as a groove, lip, or protrusion formed on a bushing of the bone anchor. Various other bone anchor features are also disclosed, including high aspect ratio drag rings and compressible drag posts.
A bone anchor, comprising:
A bone anchor, comprising:
A bone anchor, comprising:
A bone anchor, comprising:
Dependencies are inferred from the claim text.