A device for connecting tubes for a drug delivery system includes a connecting portion having a first tube channel, a second tube channel, a connecting heating element, and a carriage assembly. The first tube channel is adapted to receive a first tube, and the second tube channel is adapted to receive a second tube. The connecting heating element is positioned adjacent to and/or intersecting the first and second tube channels and is adapted to selectively heat at least a portion of the first and second tube. The carriage assembly moves the heated first and second tubes into end-to-end contact with each other to couple the first and second tubes together.