Patent ID: 8734518

Claim:
An artificial intervertebral disc for implantation in a spine between a first vertebral body and a second vertebral body, wherein the first vertebral body has a first vertebral body endplate, the second vertebral body has a second vertebral body endplate and the first vertebral body endplate and the second vertebral body endplate oppose one another, comprising: a column comprising a polyester; a column filler comprising an elastomer; a first crimped-ring set comprising a first inner ring and a first outer ring, wherein the first crimped-ring set is disposed adjacent a first end of the column and wherein at least a portion of the column is held between the first inner ring and the first outer ring; a second crimped-ring set comprising a second inner ring and a second outer ring, wherein the second crimped-ring set is disposed adjacent a second end of the column and wherein at least a portion of the column is held between the second inner ring and the second outer ring; a first anchor member configured for placement against the first vertebral body endplate; and a second anchor member configured for placement against the second vertebral body endplate; wherein at least one of the first inner ring and the first outer ring of the first crimped-ring set provides a mechanism to attach the column to the first anchor member; and wherein at least one of the second inner ring and the second outer ring of the second crimped-ring set provides a mechanism to attach the column to the second anchor member.