Method of producing prostheses for replacement of articular cartilage and prostheses so produced
AssigneeAmerican Hospital Supply Corporation
InventorsTodd D. Campbell, Aws S. Nashef
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Abstract
Prostheses useful for articulating cartilage replacement, and which are attached to host bone without the use of cements, are derived from bone. Allogenic or xenogenic bone segments are machined into the desired shape and differentially demineralized. The completely demineralized portion has a spongy texture similar to natural cartilage, while the non-demineralized portion is a matrix into which adjacent host bone grows, thus anchoring the prosthesis. The prostheses are tanned which renders the material non-antigenic, biocompatible, and stable.
Claims10
A method of producing a prosthesis for replacing articular cartilage comprising:
- (a) machining a bone segment into a desired shape,
- (b) differentially demineralizing said bone segment to produce both demineralized and non-demineralized portions of said bone segment, such that demineralized portion has a spongy texture similar to natural cartilage, and the non-demineralized portion is a matrix into which adjacent host bone grows,
- (c) tanning said bone segment to render it non-antigenic, biocompatible and stable.
Dependencies are inferred from the claim text.