Polymeric materials for biomedical applications
US11267965B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Nov 29, 2016 |
| Grant date | Mar 8, 2022 |
| Priority date | — |
| Expiry date | Aug 3, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2203/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Crosslinked biodegradable block polyurethane copolymers prepared from a plurality of biodegradable polymers or oligomers linked together via urethane bonds and crosslinked via a citrate ester are disclosed. Such copolymers can include folic acid and fabricated into medical devices such as a nerve growth conduit and locally deliver folic acid to a site of injury such as a PNS injury site.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.