Liquid preparation for contact lenses comprising hydrolyzed hyaluronic acid derivative and cationic bactericide
US10525159B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2016 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | May 26, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K47/36
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a liquid preparation for soft contact lenses, particularly hydrogel contact lenses or silicone hydrogel contact lenses. The liquid preparation for contact lenses according to the present invention contains a hydrolyzed hyaluronic acid derivative having a monoether of a linear or branched alkyl group or alkenyl group having 6 or more and 20 or less carbon atoms and glycerol in a side chain. The liquid preparation for soft contact lenses according to the present invention may contain at least one cationic bactericide selected from the group consisting of an alexidine salt, a chlorhexidine salt, a polyhexamethylene biguanide salt and a quaternary ammonium salt. The liquid preparation for soft contact lenses according to the present invention is capable of suppressing adsorption of a cationic bactericide to soft contact lenses, and suppressing occurrence of corneal staining in a wearer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.