Optical coupling gel for eye imaging
US8518109B2 · kind B2 · utility
10Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2009 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Dec 14, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/125
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention discloses an optical coupling gel that has a set of desired features for application in eye imaging, including being approved for eye contact, optically transparent, able to maintain normal hydration of the ocular surface, flexible and capable of maintaining a distinct shape, minimal in breakdown/change during use, and easily dispensable/applicable. In one embodiment, the gel is made of Sodium Carboxy Methylcellulose (SCMC), where the amount of the cellulose determines the viscosity of the gel for its particular application. The right amount of gel is contained in an applicator for application to one or two eyes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.