US 12,290,444 B2
Intervertebral implants having positioning grooves and kits and methods of use thereof
Haroon Fiaz Choudhri, Alpine, NJ (US)
Assigned to Haroon Choudhri, Alpine, NJ (US)
Filed by Haroon Fiaz Choudhri, Alpine, NJ (US)
Filed on Aug. 4, 2023, as Appl. No. 18/230,337.
Application 18/230,337 is a continuation of application No. 17/462,117, filed on Aug. 31, 2021, granted, now 11,759,324.
Prior Publication US 2023/0372109 A1, Nov. 23, 2023
Int. Cl. A61F 2/44 (2006.01); A61F 2/30 (2006.01); A61F 2/46 (2006.01)
CPC A61F 2/30771 (2013.01) [A61F 2/30749 (2013.01); A61F 2/442 (2013.01); A61F 2/4455 (2013.01); A61F 2/4611 (2013.01); A61F 2002/3008 (2013.01); A61F 2002/30112 (2013.01); A61F 2002/30331 (2013.01); A61F 2002/30593 (2013.01); A61F 2002/30828 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A cervical spinal implant, the implant comprising:
a superior implant surface, wherein the superior implant surface comprises one or more superior positioning grooves having a shape corresponding to and a size larger than a superior positioning rail, wherein the superior and inferior positioning grooves have a length of about 8 mm to about 60 mm and a diameter perpendicular to the length of about 1.5 mm to 2.0 mm,
wherein the superior positioning grooves slidably engage a corresponding superior positioning rail such that the implant can be slid along the positioning rail and into place in an intervertebral space and such that the corresponding superior positioning rail can be slidably removed from the intervertebral space along the positioning grooves without disturbing the implant;
an inferior implant surface, wherein the inferior implant surface comprises one or more inferior positioning grooves having a shape corresponding to and a size larger than an inferior positioning rail, wherein the inferior positioning grooves slidably engage a corresponding inferior positioning rail such that the implant can be slid along the positioning rail and into place in an intervertebral space and such that the corresponding inferior positioning rail can be slidably removed from the intervertebral space along the positioning grooves without disturbing the implant;
sidewalls separating the superior implant surface and the inferior implant surface, wherein the sidewalls comprise cutouts;
a central void space for packing bone growth material or bridging bone, wherein the central void space is accessible via the cutouts; and
wherein when the implant is implanted in the intervertebral space between adjacent vertebrae, the superior implant surface engages a vertebral surface of a superior vertebra and the inferior implant surface engages a vertebral surface of an inferior vertebra.