Invention Grant
US08690917B2 Distraction screw 有权
牵引螺丝

Distraction screw
Abstract:
A distraction screw includes a proximal portion secured to a first vertebra, a distal portion secured to a second vertebra and an intermediate portion. The intermediate portion is coupled to the proximal and distal portions and is positioned in an intervertebral space. The intermediate portion is configured and adapted to enable distraction of the first vertebra relative to the second vertebra.
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