Collagen drug delivery device
US4164559A · kind A · utility
326Cited by
0References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1977 |
| Grant date | Aug 14, 1979 |
| Priority date | — |
| Expiry date | Sep 21, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/0051
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Chemically-modified collagen membrane prepared at physiologic pH and soluble thereat provides a carrier for ophthalmic medication leaving no removable material after drug release.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.