Patent ID: 7537612

Claim:
A prosthetic device for insertion into an intervertebral space comprising: a first endplate component for engaging a first vertebral body, the first endplate component having a first articulating surface comprising a first retaining element protruding therefrom; a second endplate component for engaging a second vertebral body, the second endplate component having a second articulating surface comprising a second retaining element protruding therefrom; and an articulating central body component extending between the first and second endplate components, the articulating central body component comprising a first end cap component configured to articulate with the first endplate component, the first end cap component comprising a first central opening, the first retaining element extending through the first central opening, a second end cap component configured to articulate with the second endplate component, the second end cap component comprising a second central opening, the second retaining element extending through the second central opening, and a mechanical compression component having a series of circularly arranged portions integrally formed with one another, each portion extending at an angle between the first and second end cap components, each portion being positioned to contact a first location on the first end cap component and a second location on the second end cap component, the first and second locations being laterally offset from each other.