Controller portion of transdermal drug delivery apparatus and methods

A controller for being used as a portion of a transdermal drug delivery apparatus including a receptacle and a reservoir, the controller comprising:

• a housing configured for moving relative to the receptacle;
• a pushing mechanism mounted to move relative to the housing and configured for pushing against the reservoir;
• a force provider positioned between the housing and the pushing mechanism configured for moving the pushing mechanism relative to the housing;
• and
• a latching mechanism configured for selectively restricting and allowing relative movement between the housing and the pushing mechanism, the latching mechanism being configured for allowing relative movement between the housing and the pushing mechanism in response to relative movement between the housing and the receptacle,
• and wherein the housing comprises:
• a terminal portion;
• and
• at least one wall extending from the terminal portion and at least partially around the pushing mechanism and the force provider.

A controller for being used as a portion of a transdermal drug delivery apparatus, the controller comprising:

• a pushbutton for being pushed, the pushbutton comprising a terminal portion and at least one wall extending from the terminal portion and at least partially around an interior space;
• a latching mechanism carried by the pushbutton and configured for being opened in response to the pushbutton being pushed;
• a pushing mechanism carried by the pushbutton and configured for being released in response to the latching mechanism being opened;
• and
• a force provider configured for moving the pushing mechanism relative to the pushbutton in response to the pushing mechanism being released,
• wherein the latching mechanism is at least partially positioned in the interior space, the pushing mechanism is at least partially positioned in the interior space, and the force provider is at least partially positioned in the interior space.

A controller for being used as a portion of a transdermal drug delivery apparatus, the controller comprising:

• a housing;
• a pushing mechanism mounted to move relative to the housing;
• a force provider positioned between the housing and the pushing mechanism and configured for moving the pushing mechanism relative to the housing;
• and
• a latching mechanism configured for selectively restricting and allowing relative movement between the housing and the pushing mechanism, the latching mechanism being configured for allowing relative movement between the housing and the pushing mechanism in response to opposite ends of the latching mechanism being pushed inwardly toward one another.