Patent ID: 8343200
Filing Date: 2013-01-01
Classification: A61B

Abstract:
1. An orthopedic screw system, comprising: an elongate, rigid outer member, the outer member having an exterior sidewall, a first end, a second end opposite the first end, and a longitudinal inner channel of constant diameter that extends between and is open at the first and second ends, the inner channel defining an interior sidewall, the exterior and interior sidewalls of the outer member being provided with screw threads, the screw threads of the exterior sidewall being adapted to engage bone; and an elongate inner screw having a shaft with a first shaft end and a second shaft end opposite the first shaft end, the shaft including screw threads along substantially the entirety of its length constructed and adapted to engage the screw threads of the interior sidewall of the outer member so as to bring the outer member and the inner screw into engagement; wherein the outer member and the inner screw are sized and proportioned relative to one another such that in an operative position, at least about 30% of the length of the inner screw extends beyond the second end of the outer member when the inner screw and the outer member are fully engaged with one another; and wherein the outer member and inner screw are constructed and arranged to be brought into engagement with one another by advancing the inner screw into the first end of the outer member and through the inner channel such that the second shaft end emerges from the second end of the outer member.