Hydrogel filaments for biomedical uses
US9486221B2 · kind B2 · utility
74Cited by
171References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 2013 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Jan 31, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2430/36
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Described herein are apparatus, compositions, systems and associated methods to occlude structures and malformations with radiopaque hydrogel filaments with delayed controlled rates of expansion permitting the repositioning of the device once inside the structure or malformation. Further described is a device for implantation in an animal comprising a difunctional, low molecular weight ethylenically unsaturated shapeable macromer; an ethylenically unsaturated monomer; and a radiopaque element, wherein said device contains no support members. Methods of forming such devices are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.