Institute for Musculoskeletal Science and Education, Ltd.

Katherine Elizabeth Brown

James A Sack

William E Duffield

An implant includes a body and a bone fixation system. The body includes an interior area disposed between a superior surface and an opposite inferior surface spaced from the superior surface in a vertical direction. In addition, the bone fixation system includes at least one blade disposed within the interior area of the body in an insertion position. Also, the bone fixation system further includes at least one strike plate engaging the at least one blade in the interior area of the body, the at least one strike plate being configured to move the at least one blade from the insertion position to an impaction position in which at least a portion of the blade protrudes past one of the superior surface and inferior surface of the body.

Interbody fusion device and system for implantation

An implant includes a body and a bone fixation system. The body includes an interior area disposed between a superior surface and an opposite inferior surface spaced from the superior surface in a vertical direction. In addition, the bone fixation system includes at least one blade disposed within the interior area of the body in an insertion position. Also, the bone fixation system further includes at least one strike plate engaging the at least one blade in the interior area of the body, the at least one strike plate being configured to move the at least one blade from the insertion position to an impaction position in which at least a portion of the blade protrudes past one of the superior surface and inferior surface of the body. Further, the at least one blade has a substantially U-shaped cross-sectional shape in a horizontal plane substantially perpendicular to the vertical direction.

Implant fixation systems, kits and methods for interbody fusions are described herein. Preferably, the implant has a cage containing two deployable blades and one or more strike plates that are able to deploy the blades. The blades are positioned inside the cage such that one blade faces upward and the other blade faces downward. Protrusions on the ends of the blades fit into correspondingly shaped tracks on the interior surface of the cage, allowing movement of the blades inside the cage. The implant also has two wedge-shaped strike plates that fit into attachment regions located on the blades, which allow the strike plates to slide. Impaction of the strike plate(s) causes them to push the blades superiorly or inferiorly. In the impaction position, a portion of the blades protrudes beyond the superior and the inferior surfaces of the cage and fixes the cage in the adjacent vertebral bodies.

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Garnet Valley, PA, United States of America

Katherine Elizabeth Brown