The invention relates to a medical implantable lead for monitoring and/or controlling of an organ inside a human or animal body. The lead comprising a helix (3) in a distal end which is rotatable by means of an inner wire coil (5), which is disposed inside of and along essentially the hole length of the lead and which is rotatably arranged in relation to an outer sleeve, such that the helix is attachable to the organ by being screwed into the tissue inside the body. The lead is provided with a connector (2) in a proximal end which is connectible to an electronic device for monitoring or controlling the function of the organ, the connector comprising a connector pin (4), which is in engagement with the wire coil and which is rotatably journalled inside a connector housing (7). During mounting of the medical implantable lead to the organ, the inner wire coil is rotatable by rotating the connector pin in relation to the connector housing by means of a suitable tool. According to the invention, the connector (2) is provided with a friction brake (16, 17) between the connector pin (4) and the connector housing (7). The invention also relates to a method for mounting a medical implantable lead to an organ inside a human or animal body.Linvention concerne une dérivation médicale implantable pour la surveillance et/le contrôle dun organe à lintérieur dun corps humain ou animal. La dérivation comprend une hélice (3) dans une extrémité distale qui est rotative au moyen dune bobine de fil intérieure (5), disposée à lintérieur et le long essentiellement de la longueur de trou de la dérivation et qui est agencée de manière rotative par rapport à un manchon extérieur, de sorte que lhélice peut être attachée à lorgane en étant vissée dans le tissu à lintérieur du corps. La dérivation est munie dun connecteur (2) dans une extrémité proximale pouvant être connecté à un dispositif électronique pour surveiller et contrôler la fonction de lorgane, le connecteur comprenant une broche (4
