Patent ID: 6027742
Filing Date: 2000-02-22
Classification: A61F,A61K,A61L,C01B,C04B,Y10S

Abstract:
A composite material, comprising:(a) a strongly resorbable, poorly crystalline apatitic (PCA) calcium phosphate cement having an x-ray diffraction pattern similar to naturally occurring bone made by the process comprising:providing a paste comprised of amorphous calcium phosphate and water, whereby the paste hardens and converts to the poorly crystalline apatitic calcium phosphate,the poorly crystalline apatitic calcium phosphate characterized in that, at least about 80% is resorbed within one year when 1 g of the PCA calcium phosphate is placed in a rat intramuscular site; and(b) a biocompatible supplemental material, said material in intimate contact with the poorly crystalline material and present in an amount effective to impart a selected characteristic to the composite.