Remote control of osmotic pump device

A method of controlling an osmotic pump device including an osmotic chamber including a magnetically or electrically responsive control element in a wall thereof and a semi-permeable membrane separating the osmotic chamber from an osmotic fluid source, comprising:

• generating with a remote control signal source an electromagnetic control signal including frequency components absorbable by a magnetically or electrically responsive control element in a wall of the osmotic chamber of the osmotic pump device in an environment;
• and
• wirelessly transmitting the electromagnetic control signal from the remote control signal source to the magnetically or electrically responsive control element in the wall of the osmotic chamber of the osmotic pump device in the environment with signal characteristics sufficient to produce mechanical, thermal or chemical activation of the magnetically or electrically responsive control element in the wall of the osmotic chamber of the osmotic pump device, wherein absorption of the electromagnetic control signal by the magnetically or electrically responsive control element is sufficient to control the solubility of osmotic pressure generating material within the osmotic chamber to thereby control the pumping rate of the osmotic pump device.

A method of controlling an osmotic pump device including an osmotic chamber, comprising:

• generating with a remote control signal source an electromagnetic control signal including frequency components absorbable by a magnetically or electrically responsive control element in a wall of the osmotic chamber of the osmotic pump device in an environment, the osmotic pump device including an interaction region including interaction sites located on or adjacent to the magnetically or electrically responsive control element, and a semi-permeable membrane separating an osmotic fluid source from the osmotic chamber;
• and
• wirelessly transmitting the electromagnetic control signal from the remote control signal source to the magnetically or electrically responsive control element in the wall of the osmotic chamber of the osmotic pump device with signal characteristics sufficient to activate the magnetically or electrically responsive control element wherein absorption of the electromagnetic control signal by the magnetically or electrically responsive control element is sufficient to modify interaction of an osmotic pressure generating material within the osmotic chamber with the interaction sites by changing one or more characteristic of the interaction sites.

A method of controlling an osmotic pump device including an osmotic chamber including a semi-permeable membrane separating the osmotic chamber from an environment, comprising:

• generating with a remote control signal source an electromagnetic control signal including frequency components absorbable by a magnetically or electrically responsive control element in a wall of the osmotic chamber of the osmotic pump device in the environment;
• wirelessly transmitting the electromagnetic control signal from the remote control signal source to the magnetically or electrically responsive control element in the wall of the osmotic chamber of the osmotic pump device with signal characteristics sufficient to activate the magnetically or electrically responsive control element wherein absorption of the electromagnetic control signal by the magnetically or electrically responsive control element is sufficient to heat or cool an osmotic fluid in the osmotic chamber.

A method of controlling an osmotic pump device including an osmotic chamber, comprising:

• generating with a remote control signal source an electromagnetic control signal including frequency components absorbable by a magnetically or electrically responsive control element in a wall of the osmotic chamber of the osmotic pump device in an environment, the osmotic chamber including a semi-permeable membrane separating an osmotic fluid source from the osmotic chamber;
• and
• wirelessly transmitting the electromagnetic control signal from the remote control signal source to the magnetically or electrically responsive control element in the wall of the osmotic chamber of the osmotic pump device with signal characteristics sufficient to activate the magnetically or electrically responsive control element in the wall of the osmotic chamber of the osmotic pump device wherein absorption of the electromagnetic control signal by the magnetically or electrically responsive control element is sufficient to control the concentration of an osmotic-pressure generating material in the osmotic fluid in the osmotic chamber.