Freeze-dried polymer compositions for mixing with platelet rich plasma to form implants for tissue repair and/or compositions for therapeutic intra-articular injections
US11285100B2 · kind B2 · utility
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25Claims
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Key dates
| Filing date | Feb 20, 2015 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Feb 20, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2305/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present application relates to a freeze-dried polymer composition containing chitosan and at least one lyoprotectant, a process for preparing a freeze-dried composition containing chitosan and at least one lyoprotectant and the use of a reconstituted freeze-dried chitosan composition to prepare implants for tissue repair.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.