Plasma treatment of contact lens and IOL
US7250197B2 · kind B2 · utility
6Cited by
27References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2003 |
| Grant date | Jul 31, 2007 |
| Priority date | — |
| Expiry date | Dec 7, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2011/0041
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Intraocular lenses or contact lenses 20 are placed on a lower spindle 34 and held there by a vacuum in conduit 34. Noble and reactive gases 56, 58 are introduced and a voltage is applied across upper spindle 32 and lower spindle 34 to plasma treat one surface of the lens. The lens is transferred to the other spindle and the process is repeated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.