Vertebral enplate decorticator and osteophyte resector
AssigneeNuVasive, Inc.
InventorJames F. Marino
Life of this patent
Estimating the term…
Abstract
A device for removing cortical tissue from a vertebral endplate, comprising: an elongated handle; a rotatably-mounted driving rod received in said handle; a dumbbell-shaped burr connected to said driving rod; and an eccentric support having first and second opposite ends, said first end being connected to said handle and said second forming a collar around said dumbbell-shaped burr.
Claims10
An device for bone decortication and osteophyte resection, comprising:
- an elongated handle;
- a rotatably-mounted driving rod received in said handle;
- a burr axially connected to said driving rod;
- and
- an eccentric support connected to said burr and projecting outwardly from said elongated handle to a distance greater than a radius of the burr.
A method of removing bony tissue from a vertebral endplate, comprising,
- inserting an instrument having a rotatable burr mounted to an elongated handle and an eccentric support projecting outwardly from said elongated handle to a distance greater than a radius of the burr into a patient's intervertebral space;
- rotating the instrument to position the eccentric support against a first vertebral surface;
- pivoting the instrument about a contact point between the eccentric support and the first vertebral surface such that the rotatable burr is held firmly against a second vertebral surface opposite the first vertebral surface;
- and
- rotating the rotatable burr.
An improved surgical tool having a handle and a work element which rotates about an axis defined by the handle, wherein the handle provides a support surface for the work element and defines a work region on the work element for engagement against a body surface, wherein the improvement comprises a fulcrum attached to the handle and defining a pivot point disposed on a side of the work element away from the work region.
Dependencies are inferred from the claim text.