Body fluid sampling device comprising a skin-piercing element having a collection zone for receiving body fluid, and the device further comprising a fluid receiving means remote spaced apart from the collection zone so that body fluid in the collection zone will not contact the fluid receiving means initially. At least one flexible strap movably connects the first housing portion to the second housing portion at one end of each housing portion for relative movement of the housing portions along an axis parallel to the ends of the housing portions. Left and right peripheral portions of this leader block are defined by wall portions. The device will have an optional connection to a network.