The present invention relates to a method for crimping a medical implant (1) comprising at least one foldable and/or unfoldable structure on or around or over a portion or outer surface (23) of a catheter (5) or of a catheter tip (3), wherein no pressure beyond a predetermined pressure is exerted on the structure during and/or after crimping of the implant (1). The invention further relates to an implant (1), a delivery implement and a crimping device (31).