Although the drug-coated devices cost more than $2,000 on average, compared with $800 or so for bare metal devices, they rapidly supplanted the older designs in the United States and now account for 85 percent to 90 percent of the market.

• 尽管这种药物涂层血管支架平均价值超过2000美元，比800美元的纯金属器械贵得多，但是这种器械却在美国很快取代了老的器械，现在已经占有85%25到90%25的市场份额。