Artificial spinal disk

Details Artificial spinal disk Artificial spinal disk

2004-05-03

2008-08-05

McDermott, Corrine (Department: 3774)

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

Implantable prosthesis

Bone

C623S017150, C606S246000

Reexamination Certificate

active

07407513

ABSTRACT:
An artificial spinal disk comprises a central capsule that is configured to slide laterally within the disk space with one or more of flexion, extension, and lateral bending of the spine so as to shift an instantaneous center of rotation of the artificial disk. In one embodiment, the invention comprises an artificial spinal disk comprising a first plate having an inwardly directed surface, a second plate having an inwardly directed surface facing generally toward the inwardly directed surface of the first plate, and a central capsule with outwardly directed opposed faces that slidably mate with the inwardly directed surfaces of the first and second plates.

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patent: 6572653 (2003-06-01), Simonson
patent: 2002/0035400 (2002-03-01), Bryan et al.
patent: 2002/0099444 (2002-07-01), Boyd et al.
patent: 2003/0069639 (2003-04-01), Sander et al.
patent: 2004/0117021 (2004-06-01), Biedermann et al.
patent: 2004/0236425 (2004-11-01), Huang
patent: 239 523 (1986-10-01), None
patent: 90 00 094 (1991-01-01), None
patent: 0 809 986 (1997-12-01), None

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