Intervertebral spacer device having a radially thinning...

Details Intervertebral spacer device having a radially thinning... Intervertebral spacer device having a radially thinning...

2006-05-23

2006-05-23

Pellegrino, Brian E (Department: 3738)

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

C623S017150, C623S017140

Reexamination Certificate

active

07048763

ABSTRACT:
An intervertebral spacer device having a pair of opposing plates for seating against opposing vertebral bone surfaces, separated by a subassembly including a ball captured in a curvate volume, at least a portion of the curvate volume being formed in a convex element that is maintained against a first plate by a retaining wall and a retaining ring.

REFERENCES:
patent: 5893889 (1999-04-01), Harrington
patent: 5989291 (1999-11-01), Ralph et al.

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