Bone screw

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9451991
APP PUB NO 20140228890A1
SERIAL NO

14175058

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A bone fixation system with variable z-axis translation is provided. The bone fixation system includes an outer tulip coupled to a bone fastener. An inner tulip, which provides a seat for an elongate fixation rod, is located inside the outer tulip. The inner tulip together with a seated rod is permitted to translate along the z-axis in an unlocked position. Also in the unlocked position, the bone fastener is free to angulate relative to the outer tulip. The bone fixation system includes a locked position in which the z-axis position of the inner tulip and rod relative to the outer tulip is fixed. Also in the locked position, the bone fastener is locked with respect to the outer tulip. The system may be adjusted between the locked and unlocked positions by way of a set screw or independently by rotation of the inner tulip relative to the outer tulip.

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First Claim

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Patent Owner(s)

  • VERTISCREW, LLC

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Akhavi, Amir Ali Irvine, US 9 26
Raju, Muralidhara Rudhra Fountain Valley, US 7 22

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