Replacement disc
OwnerErnest L. Downeyinventor
Life of this patent
Estimating the term…
Abstract
A replacement disc for use between adjacent vertebrae comprising: a body portion having substantially opposing first and second surfaces and being adapted to fit and be held between the adjacent vertebrae; first securement means extending out from the first surface and acting to secure the replacement disc to the first adjacent vertebra; and second securement means extending out from the second surface and acting to secure the replacement disc to the second adjacent vertebra.
Claims20
A replacement disc for use between adjacent vertebrae comprising:
- a unitary body portion having substantially opposing first and second surfaces and being adapted to fit and be held between said adjacent vertebrae;
- first threaded means having a first proximal end substantially level with said first surface and a first distal end distally therefrom, said first threaded means being tapered in a direction from said first proximal end to said first distal end wherein said first distal end is about 30% to about 60% of the cross sectional area of said first proximal end;
- and
- second threaded means having a second proximal end substantially level with said second surface and a second distal end distally therefrom, said second threaded means being tapered in a direction from said second proximal end to said second distal end wherein said second distal end is about 30% to about 60% of the cross-sectional area of said second proximal end.
A replacement disc for use between adjacent vertebrae comprising:
- a unitary body portion having substantially opposing first and second surfaces and being adapted to fit and be held between said adjacent vertebrae;
- first securement means comprising a first member having a first proximal end in said unitary body portion, a first distal end extending distally from said first proximal end, and a first base located substantially entirely within said unitary body portion, secured to said first member and extending radially from said first member, said first securement means acting to secure said replacement disc to said first adjacent vertebra;
- and
- second securement means comprising a second member having a second proximal end in said unitary body portion, a second distal end extending distally from said second proximal end, and a second base located substantially entirely within said unitary body portion, secured to said second member and extending radially from said second member, said second securement means acting to secure said replacement disc to said second adjacent vertebra.
A replacement disc for use between adjacent vertebrae comprising:
- a unitary body portion having substantially opposing first and second surfaces and being adapted to fit and be held between said adjacent vertebrae;
- first securement means comprising a first member having a first proximal end in said unitary body portion, a first distal end extending distally from said first proximal end and a first loop located in said unitary body portion, secured to said first member and extending from said first proximal end, said first securement means acting to secure said replacement disc to said first adjacent vertebra;
- and
- second securement means comprising a second member having a second proximal end in said unitary body portion, a second distal end extending distally from said second distal end and a second loop located in said unitary body portion, secured to said second member, extending from said second proximal end and linked to said first loop, said second securement means acting to secure said replacement disc to said second adjacent vertebra.
Dependencies are inferred from the claim text.