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US 7,776,076 B2Granted
Bone plate
AssigneeSynthes USA, LLC
InventorsMark P. Grady, Jr., Keith A. Mayo, Jeff W. Mast, Brett R. Bolhofner, Kenny Koay
Life of this patent
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AssigneeSynthes USA, LLC
InventorsMark P. Grady, Jr., Keith A. Mayo, Jeff W. Mast, Brett R. Bolhofner, Kenny Koay
Estimating the term…
A bone plate has an upper surface, a lower surface, and at least one first hole extending through the upper and lower surfaces. The first hole has two or three vertically separate regions, each region communicating with or abutting an adjacent region. The first hole has a first unthreaded upper region, which has a curved inward taper from the plate's upper surface toward the plate's lower surface. The first hole has a second threaded middle region, which has a conical inward taper from the plate's upper surface toward the plate's lower surface. A third unthreaded lower region has a conical outward taper from the plate's upper surface toward the plate's lower surface. The bone plate may be straight, curved, or include a combination of both straight and curved segments.
A bone plate comprising a monolithic plate body having an upper surface and a lower surface, the monolithic plate body including a first hole extending therethrough from the upper surface to the lower surface, the hole including three regions separated from one another along a length of the first hole, first and third regions of the first hole being non-threaded, and a second middle region of the hole between the first and third regions including threading formed in a portion of the monolithic plate body forming a wall of the second region of the hole, the threaded second region being configured and dimensioned to lock a mating fastener therein along a single, fixed first hole axis wherein the second region is, in a direction from the upper surface to the lower surface, conically tapered inward, wherein the first region has, in a direction from the upper surface to the lower surface, an inward taper that is present around the axis of the hole.
A bone plate system comprising:
Dependencies are inferred from the claim text.