Patent ID: 7981102

Claim:
A method of using an infusion pump system, the method comprising: inserting a pre-filled medicine cartridge into a pump device, the pump device defining a greatest dimension extending in a longitudinal direction and a space that extends along a longitudinal axis in the longitudinal direction to slidably receive the pre-filled medicine cartridge; and removably attaching the pump device with a controller device so that the pump device is arranged adjacent to the controller device in a fixed relationship, wherein removably attaching the pump device with the controller device comprises mating a first electrical connector of the pump device with a second electrical connector of the controller device, the controller device being electrically connected to the pump device when in the fixed relationship, and the pump device housing a battery-powered actuator that mechanically moves in response to electrical signals from the controller device to the pump device, wherein the pump device is removably attached to the controller device by guided movement of the pump device relative to the controller device in the longitudinal direction such that the pre-filled medicine cartridge received in the pump device is guided over a first end of the controller device and toward a second opposite end of the controller device.