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US 5,980,572 AGranted
Artificial spines
AssigneesAsahi Kogaku Kogyo Kabushiki Kaisha, Phyo Kim
InventorsPhyo Kim, Noriyuki Sugimoto, Masao Suzuki
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AssigneesAsahi Kogaku Kogyo Kabushiki Kaisha, Phyo Kim
InventorsPhyo Kim, Noriyuki Sugimoto, Masao Suzuki
Estimating the term…
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.
An artificial spine, as a spacer for the spine, which is to be inserted into between a pair of longitudinally divided spines of a spinous process to thereby expand a vertebral canal, said artificial spine comprising:
Dependencies are inferred from the claim text.