Artificial spines

Details Artificial spines Artificial spines

1998-04-14

1999-11-09

Willse, David H.

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

Implantable prosthesis

Bone

606 61, A61F 244

Patent

active

059805722

ABSTRACT:
An artificial spine for use in an expansion of a vertebral canal which comprises an intermediate section having a pair of contacting surfaces in both ends thereof, the contacting surfaces being disposed along each outer end of a pair of divided spines; an inner side section extending from the intermediate section to between said pair of divided spines and having a width, in a horizontal cross-section thereof, which is gradually reduced in the direction of the vertebral canal; and an outer side section extending from the intermediate section to a side opposed to said inner side section, the outer side section being disposed out of the divided spaces; and at least a surface portion of the artificial spine being formed from a biocompatible ceramic material. The artificial spine has an excellent compatibility with the divided spines, and can be easily fixed to the divided spines, without hindering movement of a cervical spine.

REFERENCES:
patent: 4949378 (1990-08-01), Hirayama et al.
patent: 4969913 (1990-11-01), Ojima
patent: 5064436 (1991-11-01), Ogiso et al.
patent: 5147361 (1992-09-01), Ojima et al.
patent: 5425772 (1995-06-01), Brantigan
patent: 5534031 (1996-07-01), Matsuzaki et al.
patent: 5645596 (1997-07-01), Kim et al.
patent: 5728159 (1998-03-01), Stroever et al.
patent: 5766252 (1998-06-01), Henry et al.

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