Modular infusion device and method

A device for delivering fluid comprising:

• A) a disposable assembly including,
• an exit port assembly,
• a metering portion of a dispenser for controlling fluid flow to the exit port assembly, and
• a housing containing the exit port assembly and the metering portion of the dispenser;
• B) a reusable assembly including,
• a control portion of the dispenser adapted to control the metering portion of the dispenser upon attachment of the reusable assembly and the disposable assembly,
• a local processor connected to the dispenser and programmed to cause fluid flow to the exit port assembly through the dispenser based upon flow instructions,
• a local wireless communication element connected to the local processor for receiving flow instructions from a remote wireless device, and
• a housing containing the control portion of the dispenser, the controller and the local wireless communication element and adapted to removably attach to the housing of the disposable assembly;
• and
• C) a power source contained in the disposable assembly for providing power to the reusable assembly upon attachment of the reusable assembly and the disposable assembly.