A microneedle array device and its fabrication method are provided. The microneedle array device comprises a supporting pad and plural of microneedles. Each microneedle has a top portion with a via thereon, thereby the microfluid may flow in or out. The intersection between the top portion and the inner...http://www.google.co.uk/patents/US20060015061?utm_source=gb-gplus-sharePatent US20060015061 - Microneedle array device and its fabrication method
