Patent ID: 8016789

Claim:
An infusion pump assembly comprising: an enclosure assembly; a reservoir assembly positioned at least partially within the enclosure assembly and configured to contain an infusible fluid; a pump assembly positioned at least partially within the enclosure assembly and configured to effectuate the dispensing of the infusible fluid contained within the reservoir assembly; processing logic positioned at least partially within the enclosure assembly and configured to control the pump assembly; and a removable cover assembly configured to releasably engage the enclosure assembly; wherein a combination of the removable cover assembly and at least a portion of the enclosure assembly define a power supply cavity, the combination preventing a removable power supply assembly within the power supply cavity from being reverse-polarity electrically coupled to the processing logic; and wherein: the removable cover assembly includes a first twist lock assembly; and the enclosure assembly includes a second twist lock assembly configured to releasably engage the first twist lock assembly and effectuate the releasable engagement of the removable cover assembly and the enclosure assembly.