Hemostatic injection needle coated with crosslinked chitosan having catechol group and oxidized catechol group
US9931443B1 · kind B1 · utility
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10Claims
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Key dates
| Filing date | Apr 4, 2016 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Apr 4, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2420/02
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a hemostatic injection needle coated with a chitosan in which a catechol group and an oxidized catechol group are introduced and cross-linked. The hemostatic injection needle according to the present invention can suppress bleeding during and after injection, and thus can be effectively used for injection not only into coagulopathy patients, including diabetic patients, patients under anticancer treatment, and haemophilia patients, who have a low hemostatic ability, but also into patients showing blood rejection responses, and children.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.