Patent ID: 7933661

Claim:
A medical device, comprising: an elongate lead body including a proximal end and a distal end; and a coil extending along a length of the body between the proximal and distal ends and including a surface having a first edge and a second edge, the first edge extending along a helical path of the coil, wherein the surface of the coil projects away from the lead body at an angle, with respect to a longitudinal axis of the lead body, from the first edge to the second edge, toward the proximal end of the lead body, and wherein the first edge of the surface is disposed in close proximity to the lead body and the second edge of the surface is spaced apart from the lead body wherein the coil comprises a conductive wire and a relatively flat strip coupled together, wherein the surface is formed by the strip, and wherein the coil surface is adapted to interact with surrounding body tissue to prevent retrograde motion of the distal end of the lead body.