| 摘要 |
The present invention relates to implantable medical devices, such as stents, that comprise a composition for controlled delivery of flavonoids or a derivative thereof. The flavonoids are aimed at preventing or reducing secondary complications which can occur following implantation of the device such as e.g. occlusive and catastrophic vascular phenomena. The invention further relates to the inclusion of additional therapeutic agents in the system that may have antiproliferative, antimitotic, antimicrobial, anticoagulant, fibrinolytic, anti-inflammatory, immunosurpressive, and anti-angiogenic activities. The composition comprising the flavonoids and optional further therapeutic agents may be used in methods for treating or preventing narrowing or obstruction of a body passageway. In particular the devices and compositions of the invention are useful in methods for treating or preventing restenosis, e.g. subsequent to angioplasty and/or for preventing or reducing acute, subacute and chronic secondary complications associated with angioplasty, such as e.g. thrombus. |
