Importance

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Abstract

An apparatus for interspinous spinal fixation is disclosed, which includes a main body having an end thereof as a distal end, and another end thereof as a proximal end, a cross section of the main body being of an annular or quasi-annular structure. A first joining point and a second joining point are provided at the distal end that are symmetric to each other relative to an opening of the annular or quasi-annular structure, while a third joining point and a fourth joining point are provided at the proximal end that that are symmetric to each other relative to the opening of the annular or quasi-annular structure. A first lateral piece, a second lateral piece, a third lateral piece, and a fourth lateral piece are joined with the first, the second, the third, and the fourth joining points of the main body, such that the first and the second lateral pieces can rotate axially about the first and the second joining points, thereby rotating from a folded position on the main body to an extended position; and the third and the fourth lateral pieces can rotate axially about the third and the fourth joining points, thereby rotating from a folded position on the main body to an extended position.

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First Claim