A system for inserting an implant at an implantation site has a tubular catheter through which the implant to be installed is transported in a longitudinal travel direction to the implantation site. A ring is spaced forward in the direction to the implantation site from the implant and is longitudinally coupled to the implant. A guide wire in the tubular catheter also can pass through the ring. A push tube in the tubular catheter the guide wire is slidable on the guide wire longitudinally forward toward the implantation site and has a front end closer to the implantation site and for which the ring forms an impenetrable stop.
