Bone anchor assemblies and methods with improved locking

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9918747
APP PUB NO 20160128733A1
SERIAL NO

14966531

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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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 receiver member. In an exemplary embodiment, a bone anchor assembly is provided that includes a bone anchor configured to engage bone, a receiver member that polyaxially seats a spherical head of the bone anchor, and a compression member seated within the receiver member, proximally of the head of the bone anchor. The compression member can have a distal end with gripping features thereon configured to create at least one line contact and/or one band contact with the head of the bone anchor, thus providing a firm grip on the head of the bone anchor and reducing a risk of slippage of the bone anchor with respect to the receiver member.

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Patent Owner(s)

  • DEPUY SYNTHES PRODUCTS, INC.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chandanson, Thibault Villers le lac, FR 40 865
Cormier, Philip A Canton, US 15 468
Dziedzic, Sara North Attleboro, US 44 2822
Pavento, Nicholas North Attleboro, US 63 3044
Quintanilha, Ernest Norton, US 33 1190
Shaw, Derek North Attleboro, US 24 997
Spratt, Frank Boston, US 54 1299

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