Patent ID: 8382801

Claim:
An implant for placement between adjacent spinous processes, comprising: a spacer having first and second sidewalls, wherein the spacer has a longitudinal axis, a length along the direction of the longitudinal axis, a width, a height, and at least one slot along the length separating the first sidewall from the second side wall, the first sidewall has an overall length along the direction of the longitudinal axis, the second sidewall has an overall length along the direction of the longitudinal axis, and the overall length of the first sidewall is greater than the overall length of the second sidewall; a first lobe connected to the spacer and having a height extending in a first direction along the height of the spacer and a geometric centerline along the first lobe height; and a second lobe connected to the spacer and having a height extending in a second direction along the height of the spacer and a geometric centerline along the second lobe height, wherein the first lobe and the second lobe are substantially coplanar, and the first lobe geometric centerline is spaced apart from the second lobe geometric centerline along the direction of the width of the spacer, wherein the spacer has an inner surface, an outer surface, and at least one opening spaced apart from either end of the spacer, such that the inner surface is in communication with the outer surface through the at least one opening to promote tissue ingrowth.