| 摘要 |
According to the invention there is provided a medical device capable of releasing a medically active ingredient, said device including a blend of: (i) a carrier polymer or a blend of carrier polymers; (ii) a medically active ingredient; and, optionally, (iii) a water sensitive polymer for releasing said medically active ingredient in the presence of water and/or a pH sensitive polymer for releasing said medically active ingredient in the presence of a solution having a pH within a predetermined range; with the proviso that, if component (iii) is absent, the carrier polymer includes an ethylene vinyl alcohol copolymer. |
