Stent for blood vessel and material for stent for blood vessel
US7498042B2 · kind B2 · utility
46Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2001 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Apr 17, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2300/604
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A luminal stent, implanted and implanted and left in the blood vessel, is disclosed. By permitting a stent (1), formed of a biodegradable polymer material (2), to be swollen, and by impregnating the swollen stent (1) with a drug, a sufficient quantity of the drug is impregnated in the stent. This drug is continuously released into the blood vessel over a prolonged time. A biodegradable polymer layer is formed on the surface of the stent (1) impregnated with the drug, and the release rate of the drug impregnated in the stent is controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.