Electrophoretic deposition of calcium phosphate material on implants
US5258044A · kind A · utility
59Cited by
22References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 30, 1992 |
| Grant date | Nov 2, 1993 |
| Priority date | — |
| Expiry date | Jan 30, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00796
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention features a method for preparing coated implants. The method includes the steps of: (a) providing a gel of amorphous calcium phosphate having a calcium to phosphorous ratio of 0.5 to 1.6; (b) dispersing the gel of amorphous calcium phosphate in an aqueous liquid to form a colloidal mixture which is between 60% and 99% by weight water; (c) immersing an implant to be coated in the colloidal mixture; and (d) with the implant acting as an anode, electrodepositing material in the colloidal mixture on the implant to form a substantially uniform coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.