Patent ID: 11957387
Assignee: ZIMMER BIOMET SPINE, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. An annular anchor comprising:
a circular body surrounding a central bore and including an implant instrument interface along an edge of an outer circumference, wherein the instrument interface includes a downward-facing chamfered lip positioned on a lower side of the circular body along at least a portion of the outer circumference, wherein the downward-facing chamfered lip is a sloped transition surface between the edge of the outer circumference and an edge of a substantially planar surface through which the central bore passes; and
a plurality of spikes extending from a distal side of the circular body, wherein at least one spike of the plurality of spikes includes an exterior surface of a first width, an opposite interior surface of a second, different width, and at least one sloped transition surface connecting the exterior surface and the opposite interior surface, and wherein a distal portion of the at least one spike of the plurality of spikes includes at least one quadrilateral-shaped surface.