The present invention relates to an apparatus (100) for folding or unfolding at least one medical implant (300) by using at least three tension threads (11, 14, 15, 11, 14, 15), wherein the apparatus (100) includes a shaft (1) including a reception area (55) for receiving the implant (300), and a tensioning device for altering a shape of the foldable and/or unfoldable implant (300) by the tension threads (11, 14, 15, 11, 14, 15).
