发明名称 Variable angle spinal implant connection assembly
摘要 A variable angle clamp is provided for use with a spinal implant assembly having a spinal rod, a Schantz screw having an elongated shank, and a variable angle connector receiving the spinal rod and having a washer mounted on the body with a first surface defining a variable angle feature, and a stem projecting from the body, the stem terminating in a T-bar having a second surface facing the first surface. The variable angle clamp includes a clamping portion defining a bore configured to receive the shank Schantz screw therein. The clamp further includes a pair of clamp halves forming a slot therebetween that intersects the bore in the form of a split clamp. An outer surface of one of the clamp halves defines a variable angle feature for interengagement with the first surface of the washer. The outer surface of the other of clamp half is configured for pressure contact with the second surface of the T-bar. The clamp halves define an open channel configured to receive the stem of the variable angle connector therein when the shank of the bone-engaging fastener extends through the clamping bore.
申请公布号 US6648887(B2) 申请公布日期 2003.11.18
申请号 US20020055050 申请日期 2002.01.23
申请人 ASHMAN RICHARD B. 发明人 ASHMAN RICHARD B.
分类号 A61B17/70;(IPC1-7):A61B17/70 主分类号 A61B17/70
代理机构 代理人
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