Stable chitosan hemostatic implant and methods of manufacture
US8715719B2 · kind B2 · utility
5Cited by
31References
25Claims
0Family size
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Key dates
| Filing date | Jun 16, 2010 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Mar 23, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2400/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method of preparing a stable chitosan hemostatic implant including preparing a lyophilizable solution of chitosan polymers and freezing the solution to obtain a frozen chitosan composition. The method further includes placing the frozen chitosan composition under vacuum so as to substantially dry the chitosan composition and curing the dried chitosan composition by first exposing it to a relative humidity and then curing the dried chitosan composition under heat so as to crosslink the chitosan polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.