Patent ID: 7865248

Claim:
A lead assembly configured for placement in a coronary vessel of a heart, the coronary vessel having a pericardial wall portion and a myocardial wall portion, the lead assembly comprising: a lead body extending from a proximal end adapted for coupling to a pulse generator to a distal end adapted for implantation in the heart; a pace/sense electrode positioned on an outer surface of the lead body, the pace/sense electrode including a first portion on a first side of the lead body; and a loop biasing feature located along the lead body, the loop biasing feature including a resilient loop disposed on, and running in a longitudinal direction along, a second side of the lead body, the resilient loop having a first collapsed configuration, a second expanded configuration, a proximal end, a distal end, a collar for coupling the loop biasing feature to the lead body and a necked down region providing a predefined break location disposed adjacent the distal end of the resilient loop, wherein the resilient loop in the second expanded configuration forms a loop spaced from the second side of the lead body, the resilient loop in the second configuration adapted to push the second side of the lead body away from the pericardial wall and push the first side of the lead body toward the myocardial wall; wherein the lead body includes a groove for accommodating the collar.