Eyedrop applicable to limbal stem cell deficiency and preparation
US12059438B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Sep 23, 2021 |
| Grant date | Aug 13, 2024 |
| Priority date | — |
| Expiry date | Dec 17, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N2509/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present disclosure relates to an eyedrop applicable to limbal stem cell deficiency and a preparation method, wherein each liter of the eyedrop includes the following components: 1 to 40 mg of human adipose-derived stem cell exosomes, excipients: 0.5 to 2 g of sodium hyaluronate, 0.5 to 3 g of vitamin B6 and 0.05 to 0.3 g of benzalkonium chloride, and the balance of medical normal saline, a pH of the eyedrop is 6.5 to 7.5; and the eyedrop of the present disclosure is effective in treating limbal stem cell deficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.