A puncture seal that seals a hollow organ having a puncture opening in a wall includes an inner bearing element that bears on an intraluminal side of the wall of the hollow organ, and a connection element connected to the inner bearing element and which, when the seal is fitted on the wall, protrudes through the puncture opening, wherein the inner bearing element has a surface area greater than the puncture opening, the inner bearing element is a continuous strip extending in an arc shape and strip sections lie substantially flat alongside one another in a fitted state, and the strip sections have a width that is smaller than the greatest length of the puncture opening, and the inner bearing element along the strip can be inserted into the hollow organ through the puncture opening and substantially parallel to the wall of the hollow organ.
