Threaded composite interbody device and associated manufacturing method
AssigneeSB Technologies, LLC
InventorsTheodore P. Bertele, Scott K. Stanley
Life of this patent
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Abstract
A composite threaded interbody device includes (a) an outer surface that is cylindrical or conical, (b) a plastic core having two outer sections, each of the outer sections forming a respective portion of the outer surface and spanning a respective azimuthal range in an azimuthal dimension relative to a longitudinal axis of the outer surface, the outer sections being separated from each other in the azimuthal dimension by two recessed sections that are recessed from the outer surface, and (c) two threaded endplates coupled to the two recessed sections and spanning gaps between the outer sections, to complete the outer surface.
Claims20
A composite threaded interbody device, comprising:
- an outer surface that is cylindrical or conical;
- a plastic core having two outer sections, each of the outer sections forming a respective portion of the outer surface and spanning a respective azimuthal range in an azimuthal dimension relative to a longitudinal axis of the outer surface, the outer sections being separated from each other in the azimuthal dimension by two recessed sections that are recessed from the outer surface;
- and
- two threaded endplates coupled to the two recessed sections and spanning gaps between the outer sections, to complete the outer surface.
A method for manufacturing a composite threaded interbody device, comprising:
- coupling two endplates in two respective recessed sections of a plastic core such that the endplates cooperate with outer sections of the plastic core, from which the recessed sections are recessed, to form an outer surface of the composite threaded interbody device, the outer surface being cylindrical or conical, the outer sections being separated from each other in an azimuthal dimension, relative to a longitudinal axis of the outer surface, by the recessed sections;
- and
- after the step of coupling, forming, in the endplates and the outer sections, a common thread that spirals about the longitudinal axis.
A method for manufacturing a composite threaded interbody device, comprising:
- coupling two threaded endplates in two respective recessed sections of a plastic core such that the endplates cooperate with outer sections of the plastic core, from which the recessed sections are recessed, to form an outer surface of the composite threaded interbody device, the outer surface being cylindrical or conical, the outer sections being separated from each other in an azimuthal dimension, relative to a longitudinal axis of the outer surface, by the recessed sections.
Dependencies are inferred from the claim text.