Methods are provided for controlled reservoir opening, including the steps of (a) providing a biocompatible implantable device which comprises at least one substrate, a plurality of reservoirs in the substrate, reservoir caps each of which covers one of the reservoirs, and molecules sealed inside the...http://www.google.se/patents/US20040143236?utm_source=gb-gplus-sharePatent US20040143236 - Thermally-activated reservoir devices
