Method of embolization using a radiopaque, non-biodegradable, water-insoluble iodinated benzyl ether of polyl(vinyl alcohol)
US9434800B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 8, 2015 |
| Grant date | Sep 6, 2016 |
| Priority date | — |
| Expiry date | Jul 8, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2430/36
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method of embolizing an area of treatment includes providing a composition that includes a radiopaque, non-biodegradable, water-insoluble iodinated benzyl ether of poly(vinyl alcohol) consisting of a poly(vinyl alcohol) (PVA) having covalently grafted thereon iodinated benzyl groups comprising from 1 to 4 iodine atoms per benzyl group as the only substituents wherein a grafted repeating unit has formula (I)wherein n is from 1 to 4: and introducing the composition into the area of treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.