Artificial intervertebral disc

Details Artificial intervertebral disc Artificial intervertebral disc

2006-10-10

2006-10-10

Pellegrino, Brian E (Department: 3738)

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

Implantable prosthesis

Bone

C623S017110

Reexamination Certificate

active

07118599

ABSTRACT:
An artificial disc having a pair of opposing baseplates, for seating against opposing vertebral bone surfaces, separated by a ball and socket joint that includes a solid ball mounted to protrude from one of the baseplates. The ball is captured within a curvate socket formed in a peak of a convex structure integral with the other of the baseplates. The socket is formed by opposing curvate pockets, one on vex structure and one on a cap secured to the other of the baseplates. While the ball angulates in the socket, its rotation in the socket has a limited range due to interference between an interference pin's rounded head that extends into the socket and a curvate recess on the ball. The ball and socket joint therefore permits the baseplates to rotate relative to one another through a limited range and also angulate relative to one another.

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