Interbody Fusion Device
OwnerRichard S. Malyinventor
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Abstract
An interbody fusion device, or bone dowel for mending of joints is disclosed herein. The device comprises anti-migration ridges having optimum geometry to avoid failure during the insertion process while providing boney ingrowth in the body's natural healing process. A tapered head portion and a cylindrical body without threads are further included herein. Also, the device provides novel means for engagement to an insertion tool. Additional methods are disclosed herein to maintain and insert a device without torsional stresses due to torquing.
Claims19
An interbody fusion device comprising:
- a tapered head portion;
- a cylindrical body portion having an inner diameter and an outer diameter;
- and
- an end portion opposite the head portion, the end portion additionally comprising a disc shaped protrusion, the disc shaped protrusion having a carve out having a hexagonal shape, the carve out further including a threaded inner cavity for engaging a tool for insertion of said device.
An interbody fusion device comprising:
- a tapered head portion;
- a cylindrical body portion having an inner diameter and an outer diameter, the cylindrical body portion further comprising a plurality of anti-migration ridges, wherein a majority of the plurality anti-migration ridges comprises a “Z” shape having a peak followed by perpendicular ridge relative to a longitudinal axis, and followed by an angled constant slope to an adjacent peak, and wherein a trailing anti-migration ridge comprises a flat summit;
- and
- an end portion opposite the head portion configured for engaging a tool for insertion of said device.
An interbody fusion device comprising:
- a tapered head portion;
- a cylindrical body portion having a first quarter portion, a second quarter portion, a third quarter portion, and a fourth quarter portion, wherein the first and third quarter portions comprise a cavity therethrough, and wherein the first and third quarter portions further comprise a plurality of anti-migration ridges, and wherein the second and fourth quarter portions comprise a smooth surface;
- and
- an end portion opposite the head portion, the end portion configured to engage an insertion tool.
Dependencies are inferred from the claim text.