Bone anchor locking device

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United States of America Patent

PATENT NO 9782207
SERIAL NO

14466581

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A bone anchor locking device for receiving a bone anchor having a shank and an enlarged head, the device has a bone anchor, a dome and a conical split washer. The receiving portion has a base extending radially outward and inwardly to a wall. The dome has a center aperture sized to pass a bone anchor. The split washer has an inner conical surface sloped to slide and expand against at least a portion of the base on insertion of a bone anchor to allow a maximum diameter of a head of a bone anchor to pass and thereafter the split washer retracts overlying the maximum diameter of the head to prevent a bone anchor from backing out.

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Patent Owner(s)

Patent OwnerAddress
SPINAL ELEMENTS INC3115 MELROSE DRIVE SUITE 200 CARLSBAD CA 92010

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
King, Challis Avery Florence, US 2 8
Tally, William Carlton Athens, US 7 58
Whipple, Dale Acworth, US 38 2600

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