Ophthalmic drug delivery device and method for fabricating the same
US11103446B2 · kind B2 · utility
0Cited by
6References
20Claims
0Family size
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Key dates
| Filing date | Dec 31, 2019 |
| Grant date | Aug 31, 2021 |
| Priority date | — |
| Expiry date | Dec 31, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K45/06
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An ophthalmic drug delivery device and a method for fabricating the same are provided. The ophthalmic drug delivery device includes a shield element and a drug release element. The shield element has a light transmittance more than or equal to 80%. The drug release element is an annular body so that the drug release element surrounds the shield element. The drug release element is neutral and includes a cross-linked neutral collagen, a first hydrophilic biodegradable polymer and a drug. The shield element is acidic and includes a cross-linked acidic collagen and a second hydrophilic biodegradable polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.