Patent ID: 8409256
Filing Date: 2013-04-02
Classification: A61B

Abstract:
1. A spine stabilization system comprising: (a) a bone engaging member having a head and a shank; (b) a receiver member configured to receive the head of the bone engaging member therein, wherein the receiver member includes a sidewall structure defining (i) a first side opening and a second side opening spaced apart from each other, (ii) a connecting member cavity interposed between the first side opening and the second side opening, and (iii) a first set of threads, and wherein the sidewall structure includes a first connecting member seat that partially defines the first side opening and a second connecting member seat that partially defines the second side opening; (c) a bearing positioned (i) in the receiver member, and (ii) in contact with the head of the bone engaging member; (d) an elongated connecting member extending into the connecting member cavity of the receiver member and passing through both the first side opening and the second side opening; (e) a retention member positioned between the elongated connecting member and the bearing within the receiver member, the retention member configured to secure the bearing in place within the receiver member; and (f) a fixation member having a second set of threads configured to mate with the first set of threads so as to attach the fixation member to the receiver member,