A closure having two profile strips for an at least partially flexible container for connecting a first container to a second container in a manner sealed against the environment in a such a way that a closed docking position can be obtained. The instruments provide precise guidance for channel formation in the vertebral endplates by guiding rotating and bladed cutting instruments. The method further involves calculating a quality score in near real time using a quality formula that combines the at least two metrics. A metallic layer is deposited on the carrier film in the region free of the blocking layer, and the blocking liquid is evaporated during the evaporation process. Meta-data relating to the object are associated with the radiation image of the object if T1 equals T2 or if T1 approximates T2 within a predefined limit.