The invention relates to a device for filling a bag, a bag contour welding tool for manufacturing a bag, a welding tool for welding a bag, a method of filling a bag, a method of manufacturing a bag, a plant for manufacturing and filling a bag and to a bag which has been manufactured and filled with such a plant or which has been manufactured with a bag contour welding tool.The invention allows a filling of a bag, in particular a bag for medical purposes, without the necessity of providing a filling port on the bag.In this way, resources and costs can be saved, preventing damage to the environment.
