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US 2006/0149255 A1Published application
Spinal implant kit
AssigneeSpinal LLC
InventorsRobert Doubler, John Hammill
Life of this patent
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AssigneeSpinal LLC
InventorsRobert Doubler, John Hammill
Estimating the term…
A bone plate kit for stabilizing adjacent vertebrae or ends of a bone includes several bone plates of different sizes and several bone fasteners of the same or different sizes. The fasteners may have the same configuration or several different configurations. The fasteners may be coated with bone growth material. The plates have a span for extending across a discontinuity. The span has brackets for attaching to the bone. The brackets have countersunk apertures terminating through which bone screws are placed in the bone. An eccentric cam bore is located between the countersunk apertures and, upon rotation of an eccentric cam, wedge grip shoes are slid into the countersunk apertures and frictionally engage the spherical heads of the bone screws. To prevent back-out of the bone screws, the eccentric cam is locked into the wedge grip shoes.
A bone plate kit for implanting a bone plate across discontinuaties in skeletal bone, said kit comprising a bone plate and a plurality of fasteners, said plate including an elongated span having a first end and a second end, a first bracket on said first end and a second bracket on said second end, said first and said second bracket each having at least one aperture adapted to receive a bone fastener, said fasteners each having a head of a size and shape approximating said aperture and a shank, said first bracket and said second bracket each having a slot therein, a wedge shoe slidably disposed in said slot, a rotatable cam in said slot having a cam surface contacting said wedge shoe whereby rotation of said cam slides said wedge shoe partially into said aperture.
A bone plate kit of 4 comprising a spherical head on said each of said plurality of fasteners, said counter sunk bore having a spherical shape, respectively, said first and said second wedge shoe including one end adapted to engage said bone fastener, respectively, said one end shaped to substantially conform with said bone fastener.
A bone plate kit of 2 comprising several bone plates, said bone plates of different sizes, said several bone plates each having fastener apertures of the same size.
Dependencies are inferred from the claim text.