US Patent Application No: 2011/0196,431

Number of patents in Portfolio can not be more than 2000

CONSTRAINED MOTION BONE SCREW ASSEMBLY

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A bone screw assembly includes an anchor portion and a head portion, such as a rod-receiving portion, movably mounted to the anchor portion to allow for controlled angulation between the anchor portion and the head portion. The anchor portion is pivotable in one or more selected directions about an axis relative to the head portion. A restriction member, which may be a rod seat, prevents the anchor portion from pivoting in one or more different directions about another axis relative to the head portion and/or a spinal fixation element received in the head portion. The restriction member may be inserted in the head portion to control direction that the anchor portion pivots relative to the head portion. The restriction member may also serve as a compression member and/or rod seat for seating a spinal rod coupled to the bone screw assembly.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
DEPUY SPINE SARLLE LOCLE26

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Betz, Randal Ocean City, NJ 17 140
Chao, Nam T Marlborough, MA 28 418
Gurley, Jerold P Bay Village, OH 3 132
Sacher, Ronald Needham, MA 13 231
Siu, Simon Quincy, MA 11 259

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