Patent ID: 8613726

Claim:
An infusion system for infusing a fluid into a body, comprising: an infusion device having a first surface having an adhesive layer for attaching the infusion device to the skin, and a second surface having one or more electrical terminals; a replaceable fluid containing reservoir; a needle or cannula in communication with the reservoir and extending through a periphery the first surface of the infusion device; and a tab that removably mates with the second surface of the infusion device to form and seal a housing when mated with the infusion device, the tab having a drive system to force the fluid from the reservoir, an electronics system to control the drive system, one or more batteries to power the electronics system and the drive system, and one or more conductive traces; wherein one or more components included with the tab are reusable, and wherein the one or more conductive traces come in contact with the one or more electrical terminals when the tab mates with the second surface to provide an electrical contact between the infusion device and tab.