MICRONEEDLE DEPOSITION TECHNIQUE

摘要

The present invention provides a microneedle array which holds a drug only in the microneedle portions, and a method of manufacturing the same. The microneedle array 2A which holds the drug only on the tips of the microneedles can be manufactured by the microneedle deposition method, i.e. a) the microneedle array 2 is prepared using an water-soluble polymer as a base material; b) a drug solution 1 to be applied to the tips of the microneedle array 2 is prepared; and c) the tips of the microneedle array 2 are contacted with the drug solution 1 for a short time. When the drug solution 1 is a water solution, the biodegradable polymer is of water-soluble, and in addition to the drug, the biodegradable polymer is dissolved in the solution at high concentration, the applied drug is integrated with the microneedle so that only the drug does not fall away during insertion.