Diffusion barrier layer for implantable devices
US6663662B2 · kind B2 · utility
347Cited by
103References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2000 |
| Grant date | Dec 16, 2003 |
| Priority date | — |
| Expiry date | Jan 7, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/075
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A diffusion barrier for an implantable device, such as a stent, carrying a therapeutic or bioactive substance is disclosed. The diffusion barrier reduces the rate at which the therapeutic or bioactive substance is released from the device. The diffusion barrier can be made from a polymeric material impregnated with particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.