Apparatuses and methods for pumping fluids such as fluid medications are disclosed. In illustrative embodiments of the invention, the architectural geometry of one or more fluid containing chambers within a fluid delivery device is constructed to incorporate design parameters that function to control...http://www.google.de/patents/US20090281528?utm_source=gb-gplus-sharePatent US20090281528 - OSMOTIC PUMP APPARATUS AND ASSOCIATED METHODS
