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US 12,485,018 B2Granted
Interbody spacer and bone plate assembly
AssigneeElevation Spine, Inc.
InventorsCharles Gilbride, Trevor Lewis, Andrew Fauth
Life of this patent
Estimating the term…
Abstract
Implant assemblies, systems, and methods for stabilizing a joint between a superior vertebra and an inferior vertebra may include a plate member coupled to an interbody spacer with at least one fastener that extends superiorly or inferiorly from the implant assembly to anchor within a vertebral body and stabilize the joint. Inserters and methods of insertion may also be included to facilitate fixation of various implant assemblies within the intervertebral space of the joint between the superior vertebra and the inferior vertebra.
Claims25
An implant for stabilizing a joint between a superior vertebra and an inferior vertebra, the implant comprising:
- a plate member comprising:
- an anterior end plate, the anterior end plate comprising an anterior surface and
- a posterior surface;
- at least one superior fastener aperture formed in the anterior end plate;
- and
- at least one inferior fastener aperture formed in the anterior end plate;
- an interbody spacer comprising:
- a posterior end;
- an anterior end configured to engage the posterior surface of the anterior end plate;
- a superior bone-facing surface extending between the anterior end and the posterior end of the interbody spacer, the superior bone-facing surface comprising at least one superior bone-engagement aperture;
- and
- an inferior bone-facing surface extending between the anterior end and the posterior end of the interbody spacer, the inferior bone-facing surface comprising at least one inferior bone-engagement aperture;
- at least one superior fastener sized to pass through the at least one superior fastener aperture, through a first interior space of the interbody spacer, through the at least one superior bone engagement aperture, and into a superior vertebra to anchor within the superior vertebra;
- and
- at least one inferior fastener sized to pass through the at least one inferior fastener aperture, through a second interior space of the interbody spacer, through the at least one inferior bone engagement aperture, and into an inferior vertebra to anchor within the inferior vertebra;
- wherein at least one of the at least one superior fastener and the at least one inferior fastener comprises a spike, the spike comprising:
- a proximal end;
- a distal end;
- and
- a shank extending longitudinally between the proximal end and the distal end, the shank comprising:
- a smooth surface extending along a proximal-distal length of the shank;
- and
- a plurality of bone-engagement fins arranged along a majority of the proximal-distal length of the shank, the plurality of bone-engagement fins extending away from a longitudinal center of the shank, wherein each of the plurality of bone-engagement fins occupies more than half, but less than all, of a perimeter of an associated cross-section of the shank taken perpendicular to the smooth surface of the shank and each of the plurality of bone-engagement fins can flex during insertion of the fastener into the vertebra.
20 more elements
An apparatus for stabilizing a joint between a first vertebra and a second vertebra, the apparatus comprising:
- a plate member comprising:
- an anterior end plate, the anterior end plate comprising an anterior surface and a posterior surface;
- at least two first fastener apertures formed in the anterior end plate;
- and
- at least one second fastener aperture formed in the anterior end plate between the at least two first fastener apertures;
- an interbody spacer comprising:
- a posterior end;
- an anterior end configured to engage the posterior surface of the anterior end plate;
- a first bone-facing surface extending between the anterior end and the posterior end of the interbody spacer, the first bone-facing surface comprising at least one first bone-engagement aperture;
- and
- a second bone-facing surface extending between the anterior end and the posterior end of the interbody spacer, the second bone-facing surface comprising at least one second bone-engagement aperture;
- at least one first fastener sized to pass through the at least one first fastener aperture, through a first interior space of the interbody spacer, through the at least one first bone engagement aperture, and into a first vertebra to anchor within the first vertebra;
- and
- at least one second fastener sized to pass through the at least one second fastener aperture, through a second interior space of the interbody spacer, through the at least one second bone-engagement aperture, and into a second vertebra to anchor within the second vertebra,
- wherein at least one of the at least one first fastener and the at least one second fastener comprises a spike, the spike comprising:
- a proximal end;
- a distal end;
- and
- a shank extending longitudinally between the proximal end and the distal end, the shank comprising:
- a smooth surface extending along a proximal-distal length of the shank, the smooth surface having a convex curvature extending along the proximal-distal length of the shank;
- and
- a plurality of bone-engagement fins extending away from a longitudinal center of the shank;
- wherein at least a portion of the plurality of bone-engagement fins extends from a concave surface opposite the smooth surface.
20 more elements
An assembly for stabilizing a joint between a superior vertebra and an inferior vertebra, the assembly comprising:
- a plate member comprising:
- an anterior end plate, the anterior end plate comprising an anterior surface and a posterior surface;
- at least one superior fastener aperture formed in the anterior end plate;
- and
- at least one inferior fastener aperture formed in the anterior end plate;
- an interbody spacer comprising:
- a posterior end;
- an anterior end configured to engage the posterior surface of the anterior end plate;
- a superior bone-facing surface extending between the anterior end and the posterior end of the interbody spacer, the superior bone-facing surface comprising at least one superior bone engagement aperture;
- and
- an inferior bone-facing surface extending between the anterior end and the posterior end of the interbody spacer, the inferior bone-facing surface comprising at least one inferior bone engagement aperture;
- at least one superior fastener sized to pass through the at least one superior fastener aperture, through a first interior space of the interbody spacer, through the at least one superior bone engagement aperture, and into a superior vertebra to anchor within the superior vertebra;
- and
- at least one inferior fastener sized to pass through the at least one inferior fastener aperture, through a second interior space of the interbody spacer, through the at least one inferior bone engagement aperture, and into an inferior vertebra to anchor within the inferior vertebra, wherein at least one of the at least one superior fastener and the at least one inferior fastener comprises a spike, the spike comprising:
- a proximal end;
- a distal end comprising a first taper comprising a sharpened tip;
- and
- a shank extending longitudinally between the proximal end and the distal end, the shank comprising:
- a smooth surface extending along a proximal-distal length of the shank;
- a second taper extending along the proximal-distal length of the shank;
- and
- a plurality of bone-engagement fins coupled to the shank and extending away from a longitudinal center of the shank, wherein the plurality of bone-engagement fins extends outwardly from an angled surface of along the second taper.
19 more elements
An apparatus for stabilizing a joint between a first vertebra and a second vertebra, the apparatus comprising:
- a plate member comprising:
- an anterior end plate, the anterior end plate comprising an anterior surface and a posterior surface;
- at least two first fastener apertures formed in the anterior end plate;
- and
- at least one second fastener aperture formed in the anterior end plate between the at least two first fastener apertures;
- an interbody spacer comprising:
- a posterior end;
- an anterior end configured to engage the posterior surface of the anterior end plate;
- a first bone-facing surface extending between the anterior end and the posterior end of the interbody spacer, the first bone-facing surface comprising at least one first bone-engagement aperture;
- and
- a second bone-facing surface extending between the anterior end and the posterior end of the interbody spacer, the second bone-facing surface comprising at least one second bone-engagement aperture;
- at least one first fastener sized to pass through the at least one first fastener aperture, through a first interior space of the interbody spacer, through the at least one first bone engagement aperture, and into a first vertebra to anchor within the first vertebra;
- and
- at least one second fastener sized to pass through the at least one second fastener aperture, through a second interior space of the interbody spacer, through the at least one second bone-engagement aperture, and into a second vertebra to anchor within the second vertebra,
- wherein at least one of the at least one first fastener and the at least one second fastener comprises a spike, the spike comprising:
- a proximal end;
- a distal end;
- and
- a shank extending longitudinally between the proximal end and the distal end, the shank comprising:
- an inferior side extending along a proximal-distal length of the shank, the inferior side comprising a smooth surface having a convex curvature extending along the proximal-distal length of the shank;
- a superior side, opposite the inferior side;
- two lateral sides, each extending between the inferior side and the superior side;
- and
- a plurality of bone-engagement fins extending away from a longitudinal center of the shank;
- wherein at least one of the plurality of bone-engagement fins extends from more than one of the inferior side, the superior side, and the two lateral sides.
22 more elements
Dependencies are inferred from the claim text.