The invention relates to a medical implantable lead of the kind being adapted to be implanted into a human or animal body for monitoring and/or controlling of an organ inside the body. The lead comprises at a distal end a combined fixation means and electrode member in form of a helix (4), which is connected to a rotatable tubular torque transferring member (9) being in its turn connected to a rotatable control member (8) at a proximal end of the lead, and which is rotatable in relation to the lead and extendable out from the distal end, by rotation of the control member and the tubular torque transferring member, to be able to fixate the distal end of the lead to the organ by being screwed into the tissue The helix is electrically connected to a connector (7) at the proximal end by means of at least one electrically conducting wire (14) formed as an electrically conducting coil (11), which is separate from the tubular torque transferring member (9) and unrotatable in relation to the lead and which comprises one or more individual wires, each comprising an electrically conducting wire core (15) and a surrounding electrically insulating layer (16), wherein the rotatable control member (8) is rotatable within the connector (7).Linvention porte sur une sonde médicale implantable du type apte à être implanté dans un corps humain ou animal pour contrôler et/ou commander un organe à lintérieur du corps. La sonde comprend, à une extrémité distale, une combinaison de moyen de fixation et délément électrode en forme dhélice (4), qui est reliée à un élément tubulaire rotatif de transfert de couple (9) à son tour relié à un élément de commande rotatif (8) à lextrémité proximale de la sonde, et peut tourner par rapport à la sonde et savancer à partir de lextrémité distale par rotation de lélément de commande et de lélément tubulaire de transfert de couple, et permet la fixation de lextrémité distale de la sonde à lorgane par vissage dans le tissu. Lhélice est électriquement con