The invention is directed to medical lead designs that facilitate implantation of the leads through tissue. For example, the leads can implanted though tissue for placement of distal tips of the leads in locations on the opposing side of the tissue. The leads include fixation elements, such as flexible...http://www.google.ca/patents/US7546166?utm_source=gb-gplus-sharePatent US7546166 - Medical lead designs for lead placement through tissue
