An infusion set (101) includes an inserter (121) pivotally connected to a base (111). The inserter (121) includes a catheter (173) and an introducer needle (167). The catheter (173) is movable from a first catheter position disposed substantially entirely within the inserter (121) to a second catheter position in which a free end of the catheter (173) is disposed externally of the inserter (121) and the base (111). The introducer needle (167) is movable between a first introducer needle position disposed substantially entirely within the inserter (121) and a second introducer needle position in which a free end of the introducer needle (167) is disposed externally of the inserter (121) and the base (111). An activation button (141) is movable between first and second button positions.
