Treatment of contact lenses with aqueous solution comprising a biguanide disinfectant and a complementary phosphate-borate buffer system
US6143244A · kind A · utility
71Cited by
22References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1998 |
| Grant date | Nov 7, 2000 |
| Priority date | — |
| Expiry date | Nov 12, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S134/902
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention is directed to aqueous biguanide-containing disinfecting solutions containing an improved buffer system including both a phosphate and borate buffer. Preferred embodiments of the invention include methods and compositions for simultaneously cleaning and disinfecting contact lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.