Patent ID: 8808337
Filing Date: 2014-08-19
Classification: A61B

Abstract:
1. A system for delivering a substance to a bone, the system comprising: an insert comprising two ends connected by a shaft, wherein the shaft of the insert is cannulated along at least a portion of its length; an insert fenestration disposed along the cannulated portion of the insert; and a bone screw comprising two ends connected by a shaft and having an internal cannulation comprising a hollow cavity disposed inside at least part of the shaft, the bone screw adapted to receive the insert, wherein the insert is movable between: a first position wherein a surface of the bone screw blocks the insert fenestration preventing the substance from exiting the cannulated portion of the insert via the insert fenestration; and a second position wherein the insert provides a delivery pathway for the substance between at least one end of the insert and a portion of the bone.