Patent ID: 7909858

Claim:
A bone plate system for reducing a fracture of a bone, the system comprising: a bone plate comprising an upper surface, a lower surface, and a hole extending between the upper and lower surfaces; the hole comprising a frustoconical portion, an upper opening at the upper surface, and a lower opening at the lower surface, the lower opening having a first diameter, the upper opening having a second diameter that is greater than the first diameter, and the frustoconical portion having a smooth tapered first portion extending from the upper surface and a preformed, threaded tapered second portion extending from the lower surface, the first and second portions being tapered at different angles and a smallest diameter of the hole is the first diameter; a fastener comprising a head and a bone engagement portion, the head comprising a spherical portion and the bone engagement portion having a third diameter less than the first diameter, wherein the spherical portion of the head engages the frustoconical portion of the hole when the fastener is inserted into the hole and the bone engagement portion engages the bone; and an opening for receiving a provisional fixation pin, the opening having a diameter less than the first diameter.