This invention is directed to a handle (70) for manipulating a catheter tip (10) of a catheter insertion system (100), with which a self-expandable heart valve stent (150) can be inserted into the body of a patient. The invention further concerns a catheter system (30) of a catheter insertion system (100) as well as a catheter insertion system (100) itself. The proposed catheter insertion system (100) is designed to enable the implantation of a heart valve prosthesis (160) attached to a heart valve stent (150) in the optimum implantation location in a sequence of events defined before the intervention. For this purpose, the catheter insertion system (100) comprises the handle (70) for manipulating the catheter tip (10) of the catheter insertion system (100), wherein the handle (70) comprises means (71, 81) that prescribe a pre-set sequence of steps such that each subsequent step is inhibited until the preceding step has been completed.
