3905047 is referenced by 120 patents and cites 4 patents.

The improved bone prosthesis of the invention comprises a unitary body containing an eutectic of metal pyrophosphate and refractory oxide. Preferably, the body also contains discrete particles of refractory oxide bonded together by the eutectic which serves as a matrix bonder. Moreover, the particles are preferably of the same refractory oxide, such as alumina, as is present in the eutectic and are of extended surface area for improved strength. The pyrophosphate preferably is calcium pyrophosphate so that the prosthesis is biodegradable. The prosthesis can be prepared, in accordance with the present method, by forming the eutectic, preferably a pourable mixture of the particles and the molten eutectic, and pouring the mixture into and filling a mold of a bone to be duplicated, solidifying the mold and recovering it from the mold. The surface of the prosthesis can be texturized, as by acid etching it, to increase bond ingrowth and/or tissue attachment when implanted.

Implantable ceramic bone prosthesis
Application Number
Publication Number
Application Date
June 27, 1973
Publication Date
September 16, 1975
Long Roger A
Posta Jr Esq John J
Posta Jr John J
A61F 01/24
A61F 02/02
A61F 02/00
A61L 27/42
A61L 27/00
A61F 02/30
View Original Source