Prosthetic disc and method of implanting

Details Prosthetic disc and method of implanting Prosthetic disc and method of implanting

1987-08-20

1988-09-20

Apley, Richard J.

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

Implantable prosthesis

Bone

128 69, 128 92YM, 128DIG20, A61F 124

Patent

active

047722878

ABSTRACT:
By implanting two prosthetic disc capsules side-by-side into a damaged disc of a human spine, both height and motion, including front-to-back bending, can be maintained. The prosthetic disc capsules have an outer layer of strong, inert fibers intermingled with a bioresorbable material which attracts tissue ingrowth, a bladder enveloped by the layer, and a thixotropic gel filling the bladder. The prosthetic disc capsules can be surgically implanted by (1) jacking apart the vertebrae adjacent a damaged disc, (2) forming a substantially sagital bore in the damaged disc near each of its lateral edges, and (3) inserting one of the capsules axially into each bore.

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patent: 4636217 (1987-01-01), Ogilvie et al.
patent: 4643734 (1987-02-01), Lin
patent: 4655777 (1987-04-01), Dunn et al.
patent: 4685447 (1987-08-01), Iverson et al.
A Bulletin entitled "Cab-O-Sil Properties and Functions" from Cabot Corp., 9-1983, p. 10.

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