Intervertebral spacer with ramped integral expansion mechanism and stepped locking mechanism

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11737892
SERIAL NO

18098567

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Importance

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Abstract

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An expandable intervertebral spacer system having a top plate and a bottom plate forming a cage. The top, bottom, and sides of the cage have openings to receive bone graft material. At least one ramp extends into the cage from the top plate or bottom plate. The top plate and bottom plate are connected together at the proximal end of the cage at a hinge. The cage is expanded by inserting a pushrod into the proximal end of the cage against the ramp and forcing the top and bottom plates apart at a desired angle. A locking mechanism at the distal end of the cage locks the plates apart using a ratchet-like mechanism in which a torsion spring biases a movable post against a stationary post, such that the saw teeth of the movable post and stationary post cooperate to lock the top and bottom plates apart.

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Patent Owner(s)

Patent OwnerAddress
INGENIUMSPINE LLC3145 E CHANDLER BLVD #110 PHOENIX AS 85048

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Crandall, Dennis Mesa, US 15 896
Kadaba, Murali Austin, US 13 1000
Shulock, Damien San Francisco, US 18 501

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