Abstract: For guiding at least two sutures through a wall of a membrane, of a balloon or of a surface, in particular of an artery of an individual, in the vicinity of the edge region of an opening provided therein and for drawing back out of the abovementioned opening the suture ends guided through the relevant wall, the invention provides a shaft-like suture-guide device which, in its longitudinal direction, contains a rear suture-feed part (3), a front suture-accommodating part (4) and a central suture-release/suture-clamping part located therebetween; the central suture-release/ suture-clamping part (5) can be expanded in one axial direction such that that membrane, balloon or surface or vessel wall of an artery of an individual which is located in the region of the relevant central suture-release/suture-clamping part (5) is thus subjected to tensioning, on account of which those edge regions of the abovementioned wall which are provided transversely to said tensioning direction draw together toward one another.