Patent ID: 9333018
Filing Date: 2016-05-10
CPC Classification: A61B,A61C

Claim Text:
1. A method of treating a patient having a bone defect, said method comprising: a) screwing a bone screw in a bone in proximity to said bone defect, wherein the bone screw comprises a screw body comprising a plurality of exterior threads; a screw head attached to one end of the screw body; an interior channel extending longitudinally through the screw head and through at least a portion of the screw body, wherein the interior channel has a width of less than 5.0 millimeters (mm); a plurality of radially-extending delivery channels connecting the interior channel to an exterior of the screw body, wherein the plurality of radially-extending delivery channels comprise exterior openings; a screw tip attached to the screw body at an end opposite the screw head and having an exterior diameter that is less than an exterior diameter of the screw body; and at least one helical exterior groove extending through and interrupting more than one of the plurality of exterior threads along at least a portion of the exterior of said screw body and wherein the at least one helical exterior groove includes the plurality of radially-extending delivery channels; and b) injecting a liquid flowable medium into said interior channel of said bone screw; whereby said liquid flowable medium is extruded through said plurality of radially-extending delivery channels and allowed to harden, thereby fixing said bone screw in the bone of the patient.