Patent ID: 9408697
Filing Date: 2016-08-09
CPC Classification: A61F,A61K,A61L

Claim Text:
1. A composite biocompatible biomaterial, useable as a drug delivery system, a spacer or a bone substitute, comprising: a structural matrix component comprising polymethyl methacrylate, and a soluble component comprising tricalcium phosphate, wherein said tricalcium phosphate comprises both powder and granules, wherein the structural matrix component includes canaliculi having a dimension of smaller than 100 microns and partially housing the soluble component, and wherein the structural matrix component and the soluble component comprises a moisture content between 1 and 50% w/w, wherein said tricalcium phosphate powder has a dimension smaller than 100 microns, and wherein said tricalcium phosphate powder dissolves when contacted with a liquid to form empty spaces which constitute a porosity formed by microcavities with dimensions smaller than 100 microns, and wherein said tricalcium phosphate granules have dimensions between 200 and 500 microns and wherein said tricalcium phosphate granules dissolve when contacted with a liquid to form empty spaces which constitute a porosity formed by macrocavities with dimensions between 200 and 500 microns, to impart mechanical support characteristics and osteoinductive and osteoconductive characteristics in the entire volume occupied by said biomaterial.