Patent ID: 9044342
Filing Date: 2015-06-02
Classification: A61B,A61F

Abstract:
1. An expandable interbody spacer comprising: a first jointed arm comprising a plurality of links pivotally coupled end to end, wherein at least one of the links of the first jointed arm comprises a first sidewall and a second sidewall, wherein the first sidewall and the second sidewall are opposed to one another, wherein the first sidewall is on an exterior surface of the first jointed arm, wherein the first sidewall is straight and transitions into a first rounded portion; and a second jointed arm comprising a plurality of links pivotally coupled end to end, wherein at least one of the links of the second jointed arm comprises a third sidewall and a fourth sidewall, wherein the third sidewall and the fourth sidewall are opposed to one another, wherein the third sidewall is on an exterior surface of the second jointed arm, wherein the third sidewall is straight and transitions into a second rounded portion, wherein the second jointed arm comprises an opening that extends through the second rounded portion, wherein the opening of the second jointed arm faces inward into the interbody spacer and does not extend all the way through the second jointed arm; a screw having a head and an elongate body extending axially through the expandable interbody spacer from a proximal end to a distal end, wherein the elongate body of the screw extends into the opening of the second jointed arm, and wherein the first jointed arm and the second jointed arm are interconnected at a proximal end of the expandable interbody spacer, wherein the first jointed arm and the second jointed arm are interconnected at a distal end of the expandable interbody spacer.