Patent ID: 8905996

Claim:
A set of instruments configured to introduce an injectable material to a bone, the set of instruments comprising: a cannulated syringe extending along a longitudinal axis between a proximal and a distal end, the cannulated syringe having an inner tube and an outer tube that are fixedly interconnected at the distal end as a single unit, wherein a first cannulation is formed along the longitudinal axis of the cannulated syringe within the inner tube and a second cannulation is formed within an annular space between the inner and outer tubes, and a tubular piston surrounds the inner tube and is configured to slidably advance through the second cannulation in a direction toward the distal end to introduce the injectable material to the bone, wherein the distal end of the cannulated syringe defines a first opening at an end of the inner tube and a second opening defined through a cylindrical sidewall of the outer tube, and wherein the cannulated syringe is closed from fluid communication between the inner and outer tubes; a plunger having a tubular body that is configured to slidably advance the piston through the second cannulation in a direction toward the distal end; a valve body having a central passage that is sized to slidably advance onto the distal end of the cannulated syringe in an operating position, the valve body having a locking aperture and a valve inlet formed thereon, wherein the valve inlet is adapted to fluidly connect with the second opening in the operating position; and a locking member that is adapted to selectively locate through the locking aperture of the valve body and into the second opening thereby inhibiting slidable translation of the valve body along the outer tube of the cannulated syringe.