An implant for implantation around a circumferential tissue structure in a heart, includes a flexible elongated component having a longitudinal axis and a first distal end portion, a second distal end portion and an intermediate portion extending between the first and second distal end portions, and an inner lumen extending longitudinally between the first and second distal end portions and through the intermediate portion; and a locking member for allowing the first distal end portion to be fixedly connected to the second distal end portion so as to provide the elongated component as a closed loop. The first distal end portion is provided with a first distal opening which connects the inner lumen with an outside of the component. The second distal end portion is provided with a second distal opening which connects the inner lumen with the outside of the component.