Needle-to-needle electrospinning
US8795577B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2012 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Aug 2, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D2254/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An electrospinning apparatus may include a first spinneret and a second spinneret, each including a reservoir and an orifice. The first and second spinnerets may have first and second electrical charges, respectively. The first spinneret orifice may be located substantially opposite the second spinneret orifice. The first and second spinnerets may be used to prepare a medical device defining a lumen with a proximal end, a distal end, a luminal surface and an abluminal surface. The first spinneret orifice distal end may be configured to be located outside of the medical device lumen and between about 0.1 inches and about 6.0 inches from the medical device abluminal surface. The second spinneret orifice distal end may be configured to be located in the medical device lumen and between about 0.1 inches and about 6.0 inches from the medical device luminal surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.