Artificial intervertebral disc
AssigneesKYOCERA Corporation, Kabushiki Kaisha Biomaterial Universe Corporation of Japan
InventorsMasanori Oka, Shokyu Gen, Yoshito Ikada, Hideaki Okimatsu
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Abstract
A prosthesis used for a damaged bone, an artificial articular cartilage or an artificial intervertebral disc being characterized in that the prosthesis is a composite body comprising polyvinyl alcohol hydrogel and ceramic or metallic porous body. With this prosthesis, PVA hydrogel enhances lubrication and shock absorbing functions, and the porous body allows the ingrowth and ossification of the bone tissue of a living body therein to affinitively connect said hydrogel to the bones of the living body.
Claims3
A prosthesis used for replacing at least one of a damaged bone, an articular cartilage and an intervertebral disc, the prosthesis comprising:
- polyvinyl alcohol hydrogel and a porous body, the porous body comprising at least one of a ceramic material and a metallic material, wherein
- the hydrogel is carried into the porous body via infiltration and fixation, thereby forming a resulting porous body having a shape corresponding to the at least one of a damaged bone, an articular cartilage and an intervertebral disc it replaces, and wherein
- the resulting porous body is positioned at and brought into contact with articular bone portions so that bone tissue is allowed to grow into and ossify within the resulting porous body to connect the hydrogel to bone portions of a living body.
Dependencies are inferred from the claim text.