Flanged interbody fusion device
OwnerJason Blaininventor
Life of this patent
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Abstract
Methods and devices are disclosed for treating the vertebral column. An integrated fixation plate and spacer having a retaining structure within the screw holes of the fixation plate to resist backout of screws attaching the fixation plate to the bone is provided. A movable joint may be provided between the fixation plate and spacer. In some embodiments, a screw hole insert is also provided to resist shear forces acting between the screw and fixation plate. In some embodiments, an integrated fixation plate and spacer system is provided, comprising two or more integrated fixation plate and spacer implants, wherein the fixation plates of each implant has a complementary configuration to allow attachment of the implants at adjacent intervertebral spaces. Alternative fixation systems are also contemplated.
Claims24
An intervertebral stabilization system comprising:
- a first stabilization plate integrated with a first spacer, wherein the first stabilization plate comprises an upper portion and a lower portion;
- and
- a second stabilization plate integrated with a second spacer, wherein the second stabilization plate comprises an upper portion and a lower portion;
- wherein the lower portion of the first stabilization plate has a configuration complementary to the configuration of the upper portion of the second stabilization plate.
An orthopedic implant assembly, comprising:
- a stabilizing element having a trailing surface, a leading surface and at least one lumen, the lumen having a first opening at the trailing surface, a second opening at the leading surface that is smaller than the first opening, and a passageway extending from the first opening to the second opening,
- a securing element having an elongated body, a head at one end of the body and integral therewith;
- and
- a lumen insert member within a portion of the passageway, the lumen insert member having an inner diameter and an outer diameter, and adapted to substantially reduce any force exerted between the stabilizing element and the securing element;
- wherein the diameter of the head of the securing element is greater than the lesser diameter between the second opening of the lumen and the inner diameter of the insert.
A method for treating a spine, comprising:
- providing an integrated stabilization plate and spacer system, the integrated stabilization plate and spacer system comprising a first integrated stabilization plate and first spacer and a second integrated stabilization plate and a second spacer, wherein each stabilization plate having an upper portion and a lower portion and wherein the lower portion of the first integrated stabilization plate has a complementary shape to the upper portion of the second integrated stabilization plate;
- inserting the first spacer into a first intervertebral space between a first vertebra and a second vertebra;
- attaching the upper portion of the first integrated stabilization plate to the first vertebra;
- attaching the lower poition of the first integrated stabilization plate to the second vertebra;
- inserting the second spacer into a second intervertebral space between the second vertebra and a third vertebra, wherein the second intervertebral space is next to the first intervertebral space along a vertebral column;
- attaching the upper portion of the second integrated stabilization plate to the second vertebra;
- and
- attaching the lower portion of the second integrated stabilization plate to the third vertebra.
Dependencies are inferred from the claim text.