Processing of acylchitosan hydrogels
US9034379B2 · kind B2 · utility
3Cited by
6References
20Claims
0Family size
Inventor
Key dates
| Filing date | Mar 26, 2013 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Mar 26, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2305/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An article containing N-acylchitosan is manufactured by a process comprising the steps of providing a mixture containing chitosan and/or N-acylchitosan, and extruding the mixture to form an N-acylchitosan hydrogel. Alternatively, the process comprising the steps of providing a chitosan and/or N-acylchitosan hydrogel, and extruding the hydrogel. An article with a memorized shape is formed by fixing the N-acylchitosan hydrogel in a desired shape, and at least partially drying the fixed hydrogel. A patient is treated by injecting the N-acylchitosan hydrogel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.