Methods of making chitosan/hyaluronic acid hydrogel compositions and compositions made therefrom
US10967097B1 · kind B1 · utility
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16Claims
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Key dates
| Filing date | Dec 19, 2016 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Sep 10, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L26/0095
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A novel hydrogel wound dressing therapy and methods for making the same. The novel methods comprise forming two biopolymers, chitosan and hyaluronic acid, together into a wound dressing with inherent ability to enhance wound closure. The novel composition of the subject invention comprises cross-linked chitosan/hyaluronic acid hydrogels manufactured according to the methods disclosed having a specific cross-link density that results in a swelling ratio of 20 to 100. Hydrogels manufactured in accordance with the method of the invention dramatically increase healing rates and greatly improves outcomes of wound injuries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.