Fiber wadding for filling bone defects
US9498561B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 2, 2015 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Jun 2, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2033
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method for producing a flocculent three dimensional fibrous bioactive material using an electrospinning process includes electrospinning a biodegradable fiber by applying an electrical charge to a nozzle of an electrospinning apparatus such that a spinning solution contained therein is made into an electrospun fiber, which is attracted toward a collector container that is electrically grounded and is filled with an ethanol liquid; receiving the electrospun fiber emitted from the nozzle on a surface of the ethanol liquid in the collector container; recovering and drying the electrospun fiber to obtain the flocculent three dimensional fibrous bioactive material having a bulk density of from about 0.01 g/cm3 to about 0.1 g/cm3 as measured in accordance with JIS L 1097.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.