A medical arrangement configured to introduce an implant from a distal end of the arrangement into an anatomical target position around an annulus of a mitral valve of a heart, between an atrium and ventricle, the medical arrangement comprising a first introducer and a guide wire, - said guide wire has at least a first curved shape, ∘ said at least first curved shape having a preformed shape capable of being delivered in a straightened configuration through said first introducer and ∘ configured to be activated to said at least first curved shape within or near the anatomical target position, characterized in that - the arrangement additionally comprises a second introducer for bypassing the leaflets, where said second introducer is arranged to be operable between the first introducer and the guide wire, ∘ wherein the second introducer is configured to be introduced from the distal end portion of the first introducer and wherein at least a distal portion of the second introducer is configured to be introduced from the distal end portion of the first introducer before the guide wire, and ∘ wherein the second introducer and the first introducer have curved shapes forming a concentric system, - said guide wire is configured to be introduced from the atrium and through the first introducer to bypass the leaflets through the second introducer to the ventricle before the implant, - said implant is configured to be delivered along the guide wire around the annulus after the guide wire is at least partially introduced from the distal end portion of the first introducer, whereupon said implant is configured to follow said guide wire and said first curved shape of the guide wire around the annulus, wherein said implant is configured to be delivered inside the second introducer into or towards said anatomical target position after at least the distal portion of the second introducer is introduced from the distal end portion of the first introducer, and - said guide wire is configured to be retracted after said implant has been introduced around the annulus so that said implant essentially maintains the shape taken when introduced into said anatomical target position and can be attached to the annulus. - said guide wire has at least a first curved shape, ∘ said at least first curved shape having a preformed shape capable of being delivered in a straightened configuration through said first introducer and ∘ configured to be activated to said at least first curved shape within or near the anatomical target position, ∘ said at least first curved shape having a preformed shape capable of being delivered in a straightened configuration through said first introducer and ∘ configured to be activated to said at least first curved shape within or near the anatomical target position, - the arrangement additionally comprises a second introducer for bypassing the leaflets, where said second introducer is arranged to be operable between the first introducer and the guide wire, ∘ wherein the second introducer is configured to be introduced from the distal end portion of the first introducer and wherein at least a distal portion of the second introducer is configured to be introduced from the distal end portion of the first introducer before the guide wire, and ∘ wherein the second introducer and the first introducer have curved shapes forming a concentric system, ∘ wherein the second introducer is configured to be introduced from the distal end portion of the first introducer and wherein at least a distal portion of the second introducer is configured to be introduced from the distal end portion of the first introducer before the guide wire, and ∘ wherein the second introducer and the first introducer have curved shapes forming a concentric system, - said guide wire is configured to be introduced from the atrium and through the first introducer to bypass the leaflets through the second introducer to the ventricle before the implant, - said implant is configured to be delivered along the guide wire around the annulus after the guide wire is at least partially introduced from the distal end portion of the first introducer, whereupon said implant is configured to follow said guide wire and said first curved shape of the guide wire around the annulus, wherein said implant is configured to be delivered inside the second introducer into or towards said anatomical target position after at least the distal portion of the second introducer is introduced from the distal end portion of the first introducer, and - said guide wire is configured to be retracted after said implant has been introduced around the annulus so that said implant essentially maintains the shape taken when introduced into said anatomical target position and can be attached to the annulus.