Patent ID: 8322993

Claim:
An osmotic pump, comprising: a first chamber ( 8 ) comprising an osmotically active substance ( 18 ); a second chamber ( 15 ) for a solvent ( 17 ); a semi-permeable barrier ( 14 ) separating the first chamber ( 8 ) from the second chamber ( 15 ), the semi-permeable barrier ( 14 ) being impermeable to the osmotically active substance ( 18 ) and permeable to the solvent; and a position-independent pressure device ( 60 ); characterized in that the second chamber ( 15 ) is arranged to be filled with the solvent ( 17 ), and that the position-independent pressure device ( 60 ) is in fluid communication with the second chamber ( 15 ) and arranged for pressurizing the solvent ( 17 ) in the second chamber ( 15 ).