Bone screw locking receiver and bone screw system
AssigneeMiRus LLC
InventorDaniel Jobe
Life of this patent
Estimating the term…
Abstract
Various implementations described herein include a screw locking receiver. The screw locking receiver includes a receiver frame which has a first surface, a second surface opposite and spaced apart from the first surface, and an inner surface which extends between the first surface and the second surface. The receiver frame defines a cylindrical inner channel having a central axis. The receiver includes a counterbore which extends along a first portion of the inner surface. The receiver includes a plurality of threads extending helically about a second portion of the inner surface. The counterbore has a diameter that is sufficient to accept a screw head having a non-parallel central axis with respect to a central axis of the inner channel when in a fastened position.
Claims14
1-24. (canceled)
A screw locking receiver comprising a receiver frame having a top surface, a bottom surface, a first surface, a second surface opposite and spaced apart from the first surface, an inner surface which extends between the first surface and said second surface and defines a cylindrical inner channel having a central axis, a cylindrically shaped top counterbore, and a cylindrically shaped bottom counterbore;
- said first surface is spaced downwardly from said top surface;
- said second surface is spaced upwardly from said bottom surface;
- said inner surface includes a threaded region;
- said cylindrically shaped top counterbore extends from said top surface to said first surface;
- said cylindrically shaped top counterbore has a uniform diameter along a majority of the longitudinal length of said cylindrically shaped top counterbore;
- said cylindrically shaped top counterbore extends from said top surface to said first surface;
- said cylindrically shaped top counterbore has a uniform diameter along a majority of the longitudinal length of said cylindrically shaped top counterbore;
- said cylindrically shaped top counterbore is absent threading;
- said cylindrically shaped bottom counterbore is absent threading;
- said threaded region extends helically about at least a portion of said inner surface;
- a top of said threaded region terminates at a bottom surface of said cylindrically shaped top counterbore;
- a bottom of said threading terminations at a top surface of said cylindrically shaped bottom counterbore;
- a maximum diameter of said threaded portion is less than a maximum diameter of said cylindrically shaped top counterbore;
- said maximum diameter of said threaded portion is less than a maximum diameter of said cylindrically shaped bottom counterbore.
Dependencies are inferred from the claim text.