A device comprises a housing having a mounting surface adapted for application to the skin of a subject, a needle with a pointed end portion adapted to penetrate the skin the subject, the needle having a first position in which the distal end portion is retracted within the housing, and a second position...http://www.google.es/patents/US20060142698?utm_source=gb-gplus-sharePatente US20060142698 - Internal needle inserter
