Spine distraction implant
AssigneeSt. Francis Medical Technologies, Inc.
InventorsJames F. Zucherman, Ken Y. Hsu, Charles J. Winslow, Henry A. Klyce
Life of this patent
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Abstract
A spine distraction implant alleviates pain associated with spinal stenosis and facet arthropathy by expanding the volume in the spine canal and/or neural foramen. The implant provides a spinal extension inhibitor while allowing freedom of spinal flexion. The implant includes an elliptically-shaped spacer for positioning between and spacing apart the spinous processes.
Claims37
An implant that relieves pain associated with the spinal column, which implant is positionable between spinous processes of the spinal column, the implant comprising:
- a first wing with a central body extending therefrom, said central body having a longitudinal axis;
- a sleeve positioned over said central body with said sleeve being able to rotate about said longitudinal axis of said central body so as to be positionable relative to said central body in order to aid in positioning said implant between spinous processes;
- and
- wherein said sleeve is egg-shaped.
An implant that relieves pain associated with the spinal column, which implant is positionable between spinous process of the spinal column, the implant comprising:
- a first wing with a central body extending therefrom, said central body having a longitudinal axis;
- a sleeve positioned over said central body with said sleeve being able to rotate about said longitudinal axis of said central body so as to be positionable relative to said central body in order to aid in positioning said implant between spinous processes;
- and
- wherein said sleeve has an off-center bore for receiving said central body.
An implant that relieves pain associated with the spinal column, which implant is positionable between spinous process of the spinal column, the implant comprising:
- a first wing with a central body extending therefrom, said central body having a longitudinal axis;
- a sleeve positioned over said central body with said sleeve being able to rotate about said longitudinal axis of said central body so as to be positionable relative to said central body in order to aid in positioning said implant between spinous processes;
- and
- wherein said sleeve has a blunt end and a pointed end.
An implant that is positionable between spinous processes, wherein the improvement comprises the implant having a sleeve positionable between the spinous process, wherein said sleeve is egg-shaped.
Dependencies are inferred from the claim text.