Treatment of contact lenses with aqueous solution comprising a carbonate salt for enhanced cleaning
US6309658A · kind A · utility
22Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1998 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Nov 12, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L12/141
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides methods and compositions for cleaning and disinfecting contact lenses, which compositions comprise a carbonate or bicarbonate salt, a non-carbonate buffer system, an antimicrobial agent, and a non-ionic surfactant. Products according to the present invention, especially multi-purpose solutions, provide simultaneous disinfection and cleaning of contact lenses including the prevention or removal of protein and lipid deposits and other debris.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.