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US 6,830,571 B2Granted
Contourable spinal staple with centralized and unilateral prongs
AssigneeSDGI Holdings, Inc.
InventorsLawrence G. Lenke, Joseph W. Tai
Life of this patent
Estimating the term…
Abstract
A staple for stabilizing the attachment of a vertebral screw and a longitudinal member to the spine. The staple has a plate with first and second apertures. All the staple's legs, prongs, or spikes attached to the underside of the staple are located closer to one particular aperture than the other. Preferably, the plate is also “bow-tie” shaped with a groove that separates the wings of the bow-tie. This bow-tie or hour glass shape combined with the groove help the surgeon to more easily conform the plate to the patient's vertebra.
Claims20
A spinal staple fixation system, comprising:
- first and second staples adapted for engagement with respective first and second vertebral bodies, each of said first and second staples including:
- a plate defining an outer edge extending about an interior region, said interior region defining first and second apertures extending therethrough and arranged cater-cornered to one another such that said first aperture is offset from said second aperture in an axial direction and in a lateral direction;
- and
- a plurality of prongs extending from said plate, at least one of said prongs comprising an inner prong extending from said interior region of said plate, said inner prong overlapping a portion of said first aperture in said axial direction, said inner prong overlapping a portion of said second aperture in said lateral direction;
- and
- first and second rods extending between said first and second staples to interconnect the first and second vertebral bodies.
3 more elements
A spinal staple, comprising:
- a plate defining an outer edge extending about an interior region, said interior region defining first and second apertures extending therethrough and arranged cater-cornered to one another such that said first aperture is offset from said second aperture in an axial direction and in a lateral direction, said plate defining a lateral curvature corresponding to an outer profile of a vertebral body to which the spinal staple may be anchored;
- and
- a plurality of prongs extending from said plate, at least one of said prongs comprising an inner prong extending from said interior region of said plate, said inner prong overlapping a portion of said first aperture in said axial direction, said inner prong overlapping a portion of said second aperture in said lateral direction.
A spinal staple fixation system, comprising:
- first and second staples adapted for engagement with respective first and second vertebral bodies, each of said first and second staples including:
- a plate defining an outer edge extending about an interior region, said interior region defining first and second apertures extending therethrough and arranged cater-cornered to one another such that said first aperture is offset from said second aperture in an axial direction and in a lateral direction;
- and
- a plurality of prongs extending from said plate, at least one of said prongs comprising an inner prong extending from said interior region of said plate, said inner prong arranged closer to said first aperture than said second aperture in said axial direction, said inner prong arranged closer to said second aperture than said first aperture in said lateral direction;
- and
- first and second rods extending between said first and second staples to interconnect the first and second vertebral bodies.
3 more elements
A spinal staple, comprising:
- a plate defining an outer edge extending about an interior region, said interior region defining first and second apertures extending therethrough and arranged cater-cornered to one another such that said first aperture is offset from said second aperture in an axial direction and in a lateral direction, said plate defining a lateral curvature corresponding to an outer profile of a vertebral body to which the staple may be anchored;
- and
- a plurality of prongs extending from said plate, at least one of said prongs comprising an inner prong extending from said interior region of said plate, said inner prong arranged closer to said first aperture than said second aperture in said axial direction, said inner prong arranged closer to said second aperture than said first aperture in said lateral direction.
Dependencies are inferred from the claim text.