The present invention relates to a stent comprising a stent body and a biologically active agent provided on at least a portion of said body. The biologically active agent is controllably released from said stent body over time, wherein said biologically active agent is provided in a mixture of a first polymer and a second polymer. The first polymer releases said agent at a first rate and the second polymer releases said agent at a second rate, wherein said first rate is faster than said second rate.
本发明涉及一种支架,包括支架体和至少部分支架体上的
生物活性剂。
生物活性剂可控地随时间从所述支架体中释放,其中所述
生物活性剂由第一种聚合物和第二种聚合物的混合物提供。第一种聚合物以第一速率释放所述药剂,第二种聚合物以第二速率释放所述药剂,其中第一速率快于第二速率。