Punctal plugs for the delivery of active agents
US9474645B2 · kind B2 · utility
2Cited by
17References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2007 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Jul 24, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/0051
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention provides punctal plugs for the delivery of active agent to one or both of the tear fluid of the eye and to the nasolacrimal duct that comprise a body, at least one cap, and optionally a collarette.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.