Method for applying renewable polymeric lens coating
US6638563B2 · kind B2 · utility
106Cited by
52References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2002 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Apr 22, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J7/056
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention is directed toward the renewable surface treatment of medical devices such as contact lenses and medical implants. In particular, the present invention is directed to a method of modifying the surface of a medical device to increase its biocompatibility or hydrophilicity by coating the device with a removable hydrophilic polymer by means of reaction between reactive functionalities on the hydrophilic polymer which functionalities are complementary to reactive functionalities on or near the surface of the medical device at reaction temperatures of less than about 55° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.