Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Miscellaneous
Patent
1992-02-20
1992-12-15
Green, Randall L.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Miscellaneous
423305, A61F 254
Patent
active
051713268
ABSTRACT:
Improved ceramics which promote bone ingrowth are disclosed. The coating of the present invention consists essentially of oxyhydroxyapatite, and alpha- and beta-tricalcium phosphate. Methods of making and using the ceramics are also disclosed. The present invention uses a microscopically powdered form of calcium-phosphate materials and electrophoretic deposition to create ceramics having significantly higher dissolution rates than previous materials. By agitating the electrophoretic solution, agglomeration is prevented and a uniform coating is achieved. Thus, the present invention presents both improved ceramic materials and novel methods of depositing them uniformly upon metal surfaces, such as titanium wire mesh.
REFERENCES:
patent: 4308064 (1981-12-01), Takami et al.
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patent: 4863475 (1989-09-01), Anderson et al.
patent: 4983182 (1991-01-01), Kijima et al.
patent: 5053212 (1991-10-01), Constantz et al.
Cuckler John
Ducheyne Paul
Radin Shulamit
Green Randall L.
Gualtieri G.
Trustees of the University of Pennsylvania
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