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US 9,282,975 B2Granted
Drill bit and method for preparing a bone for a fixation screw
AssigneeSpinal Generations, LLC
InventorPatrick J. Sweeney
Life of this patent
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Abstract
A method of preparing a bone to receive a fixation screw through a fixation device includes providing a drill bit sized and configured to pass through a bore in a fixation device positioned in the bone and drilling a passage into the bone and through the bore. At least a distal portion of the drill bit passes through the bore in the drilling step. At least an outer portion of the distal portion of the drill bit has a hardness that is less than a hardness of the fixation nail.
Claims9
A bone fixation system, comprising:
- a fixation device configured to be positioned at a target area of bone comprising two ends connected by a shaft and further comprising a bore formed through the shaft configured to receive a fixation screw;
- a drill bit sized and configured to pass through the bore to prepare the surrounding bone to receive a second fixation device;
- wherein at least a distal portion of the drill bit is configured to pass through the bore;
- wherein the fixation device is made of a first material and wherein the distal portion of the drill bit comprises at least an outer portion made of a second material;
- and wherein the second material of the drill bit has a hardness that is less than the hardness of the first material of the fixation device, wherein the drill bit comprises an outer sheath formed of the second material positioned over an inner core made of a harder material.
2 more elements
Dependencies are inferred from the claim text.