Interspinous Process Spacing Device

摘要

Various interspinous process spacing devices and associated methods are provided for treating spinal disease. In one embodiment, an interspinous process spacing device includes a first attachment side and a second attachment side, each attachment side including one or more slots formed therein and positioned proximate one end for receiving fasteners extending inwardly from a second interspinous process spacing device. The device further includes a spacer tray extending from the first attachment side and slideably insertable through a spacer tray slot formed in the second attachment side, wherein the spacer tray is adapted to retain adjacent spinous processes in a spaced apart orientation, and wherein at least a portion of the spacer tray has a longitudinally arcuate shape adapted to facilitate angled insertion of the spacer tray through the spacer tray slot. The device further includes securing means for securing the second attachment side relative to the first attachment side.

主权项

1. An interspinous process spacing device, comprising:
a first attachment side; a second attachment side; and a spacer extending from the first attachment side and slideably insertable through a spacer slot formed in the second attachment side, the spacer adapted to be positioned between a spinous process of a first vertebra and a spinous process of an adjacent second vertebra; wherein the first attachment side and the second attachment side each comprise:
a central portion comprising:
an anterior surface adapted to face anteriorly with respect to the first vertebra and the second vertebra;a posterior surface adapted to face posteriorly with respect to the first vertebra and the second vertebra; andan inner surface extending along at least a majority of an anterior-posterior height between the anterior surface and the posterior surface of the central portion;a first wing portion integrally formed with and extending from the central portion, the first wing portion comprising:
an anterior surface adapted to face anteriorly with respect to the first vertebra and the second vertebra;a posterior surface adapted to face posteriorly with respect to the first vertebra and the second vertebra; andan inner surface extending along at least a majority of an anterior-posterior height between the anterior surface and the posterior surface of the first wing portion; anda second wing portion integrally formed with and extending from the central portion, the second wing portion comprising:
an anterior surface adapted to face anteriorly with respect to the first vertebra and the second vertebra;a posterior surface adapted to face posteriorly with respect to the first vertebra and the second vertebra; andan inner surface extending along at least a majority of an anterior-posterior height between the anterior surface and the posterior surface of the second wing portion;wherein the inner surface of the first wing portion is angled relative to the inner surface of the second wing portion to define an acute angle between the inner surface of the first wing portion and the inner surface of the second wing portion; andwherein the posterior surface of the second wing portion is coplanar with the posterior surface of the central portion.