A system for repairing an atrioventricular heart valve, the system comprising - a tubular element having an outer, distal end, - a distal implant part arranged in the tubular element, - a proximal implant part arranged in the tubular element, - an artificial or allograft or xenograft chord arranged in the tubular element, the chord connecting the distal implant part and the proximal implant part; and - an anchor carrier arranged in the tubular element, - the distal implant part and the proximal implant part being arranged in the tubular element next to each another, - the proximal implant part being assembled with the anchor carrier inside the tubular element, the anchor carrier forming a seat for the proximal implant part, the seat being open towards one radial direction but blocking the proximal implant part with respect to axial direction so that the tubular element prevents the proximal implant part from escaping from the anchor carrier as long as the anchor carrier is within the tubular element, characterized in that the distal implant part is to be anchored in the papillary muscle with the artificial chord running through the ventricle and through an opening of the leaflet, and the proximal implant part is to be placed on the proximal side of the leaflet, with an abutment surface resting on the leaflet tissue, and in that the anchor carrier comprises a stop feature cooperating with the proximal implant part to secure the same against movements into distal directions relative to the anchor carrier as long as the proximal implant part is within the tubular element, wherein the anchor carrier comprises a shaft portion extending along the proximal implant part and a foot piece distally of the shaft portion, the foot piece forming a proximally-facing shoulder that forms the stop feature, and wherein the foot piece comprises a channel for the chord, the channel being open to one lateral side. - a tubular element having an outer, distal end, - a distal implant part arranged in the tubular element, - a proximal implant part arranged in the tubular element, - an artificial or allograft or xenograft chord arranged in the tubular element, the chord connecting the distal implant part and the proximal implant part; and - an anchor carrier arranged in the tubular element, - the distal implant part and the proximal implant part being arranged in the tubular element next to each another, - the proximal implant part being assembled with the anchor carrier inside the tubular element, the anchor carrier forming a seat for the proximal implant part, the seat being open towards one radial direction but blocking the proximal implant part with respect to axial direction so that the tubular element prevents the proximal implant part from escaping from the anchor carrier as long as the anchor carrier is within the tubular element, the distal implant part is to be anchored in the papillary muscle with the artificial chord running through the ventricle and through an opening of the leaflet, and the proximal implant part is to be placed on the proximal side of the leaflet, with an abutment surface resting on the leaflet tissue, and in that the anchor carrier comprises a stop feature cooperating with the proximal implant part to secure the same against movements into distal directions relative to the anchor carrier as long as the proximal implant part is within the tubular element, wherein the anchor carrier comprises a shaft portion extending along the proximal implant part and a foot piece distally of the shaft portion, the foot piece forming a proximally-facing shoulder that forms the stop feature, and wherein the foot piece comprises a channel for the chord, the channel being open to one lateral side.