Intervertebral spacers and related methods and instruments
AssigneeAmedica Corporation
InventorsChad Wayne Lewis, Nathan Nelson
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Abstract
Biomedical implants comprising portions made of disparate materials, such as intervertebral implants and related methods and instruments. In some embodiments, the implant may comprise a base portion comprising a first material and a secondary fastener portion comprising a second material having distinct physical properties relative to the first material. The secondary portion may wholly define a front end wall surface of the implant, and the base portion and the secondary portion may collectively define at least one of an upper surface and a lower surface of the implant.
Claims20
An intervertebral spinal implant, comprising:
- a base portion;
- and
- a secondary portion comprising at least one opening configured to receive at least one fastener for engaging a vertebral body of a patient's spine,
- wherein:
- the secondary portion wholly defines a front end wall surface of the intervertebral spinal implant;
- the base portion and the secondary portion collectively define at least one of an upper surface and a lower surface of the intervertebral spinal implant;
- and
- the at least one opening comprises a plurality of protrusions positioned along a surface of the at least one opening that engage with respective recessions positioned about a proximal portion of the at least one fastener.
An intervertebral spinal implant, comprising:
- a base portion comprising a plurality of openings;
- and
- a plurality of secondary fastener portions comprising at least one protrusion on an outer surface configured to be received in a groove formed within the plurality of openings in the base portion and a plurality of protrusions positioned along an inner surface configured to engage with respective recessions positioned about a proximal portion of a respective fastener,
- wherein:
- each of the plurality of secondary fastener portions is configured to be received in one of the plurality of openings in the base portion, and
- each of the secondary fastener portions is configured to engage with the respective fastener such that the respective secondary fastener portion is positioned in between the respective fastener and the base portion.
Dependencies are inferred from the claim text.