There is disclosed various embodiments of an implantable anchor for permanently anchoring a medical lead or catheter. For instance, there is disclosed an implantable anchor including a body having a longitudinal lumen defined therein, wherein the longitudinal lumen is sized to accept a portion of the medical lead or catheter, a bending mechanism coupled to the body for bending the lead to a predetermined angle within the body, and a retaining mechanism for maintaining the predetermined angle of the bent lead within the body.