Polymeric nanofibers for tissue engineering and drug delivery
US7235295B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Sep 10, 2004 |
| Grant date | Jun 26, 2007 |
| Priority date | — |
| Expiry date | Sep 10, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2913
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Polymeric nanofibers have been developed which are useful in a variety of medical and other applications, such as filtration devices, medical prosthesis, scaffolds for tissue engineering, wound dressings, controlled drug delivery systems, cosmetic skin masks, and protective clothing. These can be formed of any of a variety of different polymers, either non-degradable or degradable. In a preferred embodiment demonstrated in the following examples, nanofibers are formed of biodegradable and non biodegradable polyphosphazenes, their blends with other polyphosphazenes or with organic, inorganic/organometallic polymers as well as composite nanofibers of polyphosphazenes with nanosized particles such as hydroxyapatites.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.