This disclosure describes techniques for securing an elongated member, such as a medical lead, within a tissue of a patient. In particular, suction is applied from a vacuum to a vacuum cavity located proximate to a distal end of the lead to draw in tissue from the target therapy delivery site to the...http://www.google.com/patents/US20080103577?utm_source=gb-gplus-sharePatent US20080103577 - Implantable medical elongated member including a tissue receiving fixation cavity