Patent ID: 8622966
Filing Date: 2014-01-07
Classification: A61M

Abstract:
1. A method of operating an infusion pump device, comprising: engaging a cap device with a pump housing of an infusion pump device so that the cap device covers an exterior opening of the pump housing and retains a medicine cartridge in a space defined in an interior of the pump housing, the medicine cartridge comprising a plunger movable relative to an outer wall structure of the medicine cartridge and positioned entirely within the outer wall structure; and urging the cap device against a first end portion of the medicine cartridge so that the plunger of the medicine cartridge is rearwardly axially displaced relative to a component of a drive system in the pump housing and attaches to the component of the drive system in the pump housing that is positioned proximate to a second end portion of the medicine cartridge opposite from the first end portion.