Patent ID: 9326801
Filing Date: 2016-05-03
CPC Classification: A61B

Claim Text:
1. A bone screw having a shank, a tip, and a head, at least a portion of said shank having threads thereon configured to be threaded into bone structure, said shank having a longitudinal cannula therein, at least one fenestration extending outwardly from said cannula to the exterior of said screw, a central opening in the outer end of the head configured to form a socket for receiving a driving tool for driving the screw into bone structure, said opening having a first connector inwardly of said socket and being adapted to be connected to a source of bone cement so that bone cement may be delivered to said cannula of said screw and forced out of said at least one fenestration and into bone structure proximate said at least one fenestration, said source of bone cement comprising a cement injection tube adapted to be connected to a suitable bone cement pump, said cement injection tube carrying a second connector adapted to be coupled to said first connector for the delivery of bone cement into said cannula of said bone screw, wherein one of said connectors is a male connector and the other of said connectors is a female connector, said female connector having an opening adapted to receive at least a portion of said male connector and having at least one connection slot comprising an axial slot and a circumferential slot, wherein said male connector has at least one tang configured to be received in a respective connection slot in said female connector so that upon said tang being aligned with the axial slot of its respective connection slot in said female connector and upon said tube being moved axially toward said screw, said tang moves along said axial slot in said female connector until the tang is in register with said circumferential slot whereupon upon rotation of said tube in one direction moves said tang into said circumferential slot thereby to secure said tube to said screw.