Method for depositing bioactive coatings on conductive substrates
US5205921A · kind A · utility
129Cited by
5References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 4, 1991 |
| Grant date | Apr 27, 1993 |
| Priority date | — |
| Expiry date | Feb 4, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00796
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process for electro depositing bioactive coatings, such as calcium phosphate or aluminum oxide, onto conductive substrates, such as prosthetic implant devices, is described. An electrolyte bath containing an aqueous solution of the desired oxide or phosphate is prepared with an inert anode such as a platinum anode. A porous or non porous substrate, such as a stainless steel or titanium implant is used as the cathode and a D.C. potential is applied so as to raise the interfacial pH at the cathode sufficient to precipitate the desired oxide or phosphate thereon as a dense adherent film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.