Patent ID: 9095445
Filing Date: 2015-08-04
Classification: A61F

Abstract:
1. An interbody spacer for positioning between vertebrae, comprising: an elongated central body portion extending along a longitudinal axis between a leading end portion and a trailing end opposite said leading end portion, said body portion including a pair of opposite lateral side walls extending transverse to said longitudinal axis from said leading end portion to said trailing end to define a length of said body portion, said body portion defining a mid-length plane that is orthogonal to said longitudinal axis, said body portion comprising a receptacle extending along said longitudinal axis through said trailing end, said receptacle comprising a blind end; an upper bearing surface extending along said longitudinal axis that is curved between said leading end portion and said trailing end, said upper bearing surface for placement against an endplate of a superior vertebra; an opposite lower bearing surface extending along said longitudinal axis that is curved between said leading end portion and said trailing end, said lower bearing surface for placement against an endplate of an inferior vertebra, said opposite upper and lower bearing surfaces defining a maximum height between said bearing surfaces at a first location that is offset from said mid-length plane toward said leading end portion, wherein: said lateral side walls each define a continuous convexly curved profile extending from said leading end portion to said trailing end, said continuous convexly curved profiles defining a maximum width of said body portion between said lateral side walls at a second location that is offset from said mid-length plane toward said leading end portion; and said upper and lower bearing surfaces each including a series of projections extending outwardly therefrom, said projections having a uniform cross sectional shape, said projections being spaced longitudinally from one another from said leading end portion to said trailing end, one of said projections adjacent said leading end portion and one of said projections adjacent said trailing end extending continuously from one of said lateral side walls to the other of said lateral side walls.