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US 2006/0149264 A1Published application
Screw locking systems for bone plates
OwnerJavier Castaneda, Jorge Orbayinventors
Life of this patent
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Abstract
Bone screws have heads which are provided with a hex socket as well as a threaded portion. A screw driver system includes a hex driver and a threaded driver. The screw driver system permits driving the screw through a plate system into a bone until desired compression is obtained. Then the screw is locked to the plate while maintaining the imparted compression.
Claims29
A screw driver system, comprising:
- a first driver having an elongate body having a first end and a second end with a throughbore extending through said body from said first end to said second end and first screw engagement means for engaging a first portion of a screw located at said second end;
- and
- a second driver having an elongate body having a first end and a second end and dimensioned to fit through said through bore of said first driver and second screw engagement means for engaging a second portion of a screw located at said second end of said second driver.
A bone screw, comprising:
- a threaded shank having a first end, a second end, and an overall diameter;
- a screw head having a portion of larger diameter than said overall diameter, said screw head defining two separate driver engagement means for engaging two separate screw drivers.
A bone plating kit, comprising:
- a bone screw having
- a threaded shank with a first end, a second end, and an overall diameter, and
- a screw head having a portion of larger diameter than said overall diameter, said screw head defining two separate driver engagement means for engaging two separate screw drivers;
- a screw driver system having
- a first driver having an elongate body having a first end and a second end with a throughbore extending through said body from said first end to said second end and first screw engagement means located at said second end for engaging a first one of said driver engagement means, and
- a second driver having an elongate body having a first end and a second end and dimensioned to fit through said throughbore of said first driver and second screw engagement means located at said second end of said second driver for engaging a second one of said driver engagement means;
- and
- a bone plate having
- at least one screw hole adapted to receive said screw and lockingly engage said screw head.
6 more elements
A method for attaching a plate to a bone with a screw through a hole in the plate, said method comprising:
- attaching the screw to a driver;
- inserting the screw through the hole in the plate;
- driving the screw into a bone while biasing the plate against the bone with the driver but not the screw;
- and
- releasing the screw from the driver while locking it to the plate.
2 more elements
Dependencies are inferred from the claim text.