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US 10,327,819 B2Granted
Bone screw
AssigneeNevada Neurosurgery
InventorLali Sekhon
Life of this patent
Estimating the term…
Abstract
A bone screw, such as a pedicle screw, comprises an anchor portion and a sleeve portion, the anchor portion including an angled or curved portion and an externally threaded portion. The sleeve portion having an external thread for engaging bone, and a threaded internal bore for engaging the externally threaded portion of the anchor portion.
Claims17
A bone screw comprising:
- a) an anchor component having first and second ends and comprising a nail portion adjacent the second end and a threaded portion comprising an external thread adjacent the first end, the nail portion and the threaded portion being adapted to be inserted into bone;
- and,
- b) a generally cylindrical sleeve component having first and second ends and a bore extending there-through, the bore being threaded over at least a portion thereof adjacent the second end of the sleeve, the sleeve component including a threaded outer surface adjacent at least the second end of the sleeve, the threaded outer surface adapted to be secured into the bone;
- wherein the second end of the sleeve component is adapted to receive the first end of the anchor component, and wherein the threaded portion of the anchor component is adapted to engage the threaded bore of the sleeve component;
- and
- wherein the nail portion and the threaded portion of the anchor component have respective longitudinal axes, and wherein the longitudinal axis of the nail portion is angled with respect to the longitudinal axis of the threaded portion.
3 more elements
Dependencies are inferred from the claim text.