Polyaxial bone anchors with pop-on shank, friction fit fully restrained retainer, insert and tool receiving features

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9907574
SERIAL NO

13373289

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A polyaxial bone screw assembly includes a threaded shank body having an integral upper portion receivable in an integral receiver, the receiver having an upper channel for receiving a longitudinal connecting member and a lower cavity cooperating with a lower opening. The receiver can have crimp tabs, but is devoid of spring tabs and collet-like flexible structures. A down-loadable compression insert (some with lock and release feature), a down-loadable friction fit split retaining ring and an up-loadable shank upper portion cooperate to provide for pop- or snap-on assembly of the shank with the receiver either prior to or after implantation of the shank into a vertebra. The shank and receiver once assembled cannot be disassembled. The receiver and insert include aligned tool receiving apertures for lock and release of the polyaxial mechanism.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
JACKSON ROGER P4706 W 86TH STREET PRAIRIE VILLAGE KS 66207

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jackson, Roger P Prairie Village, US 640 39036
Surber, James L Kansas City, US 157 3958

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