The invention relates to an anchoring sleeve for a lead of an implantable device, including a tube being of flexible material having a first end and a second end, the tube being adapted to permit the lead to extend from the first end to the second end, and where the tube also includes radiopaque material in at least one location. The guide element is substantially offset from the lateral center of gravity of the ink stick body. 2 to 5\u03bcm, that the first coating layer includes an amorphous region and a crystalline region in order from the substrate side, that the amorphous region is amorphous and has a thickness of 0. , a posture of the patient is periodically determined andor posture transitions by the patient are identified, and each determined posture event is associated with a current therapy parameter set.