A transdermal delivery device includes a plurality of microneedles for injecting a substance such as a pharmaceutical agent into or below the stratum corneum of the skin. The device has housing formed from a top and bottom wall to define a chamber for containing a pharmaceutical agent. An inlet port...http://www.google.de/patents/US20030199812?utm_source=gb-gplus-sharePatent US20030199812 - Method and apparatus for the transdermal administration of a substance
