Interface module for use with an NCT-based pumping mechanism and NCT-based cassette

A method of enabling a modular ambulatory infusion pump to deliver and receive data from multiple pump interfaces, the method comprising:

• the step of providing a base unit including an integral housing, said base unit including an infusion pump for infusing a fluid into a patient's body, a battery power supply for energizing the infusion pump, and a control for operating the infusion pump to achieve at least one of a desired rate, a desired volume, and a desired time interval for infusing the fluid;
• the step of providing a first electrical connector disposed on the integral housing;
• the step of electrically coupling the base unit to a mating connector on one of a plurality of modules, said one of the plurality of modules being coupled to the base unit to add a selected additional port to the base unit and to provide additional capability;
• and
• the step of including in said plurality of modules a data port module that includes a printer interface port, and an external power input module that includes a power port for coupling the modular ambulatory infusion pump to an AC line to provide electrical power for the base unit.

A method of making a modular ambulatory infusion pump water resistant, enabling a patient receiving medication by infusion from the pump to bathe while the infusion pump is in use without causing damage to the infusion pump due to exposure of the infusion pump to water, the method comprising:

• the step of providing a base unit including an integral housing sealed to prevent water from entering the integral housing, said base unit including within the integral housing an infusion pump for infusing a fluid into a patient's body, a battery power supply for supplying electrical power to energize the infusion pump, and a control for operating the infusion pump;
• the step of disposing a first electrical connector on the integral housing to electrically couple the base unit to a mating connector disposed on one of a plurality of modules;
• and
• the step of sealing each of said plurality of modules and the mating connector on said modules to prevent water entering the module while the module is electrically coupled to the base unit, so that the base unit and module are not damaged by exposure to water during bathing by the patient.