Multiblock biodegradable hydrogels for drug delivery and tissue treatment
US6639014B2 · kind B2 · utility
49Cited by
45References
15Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 2, 2002 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Apr 2, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/941
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Gel-forming macromers including at least four polymeric blocks, at least two of which are hydrophobic and at least one of which is hydrophilic, and including a crosslinkable group are provided. The macromers can be covalently crosslinked to form a gel on a tissue surface in vivo. The gels formed from the macromers have a combination of properties including thermosensitivity and lipophilicity, and are useful in a variety of medical applications including drug delivery and tissue coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.