Patent ID: 8825180

Claim:
A multi-conductor medical electrical lead comprising: a connector located at a proximal end of the lead; at least one electrode located at a distal end of the lead; a co-radial multi-conductor coil extending from the proximal end of the lead to the at least one electrode and connecting the connector with the electrode, wherein the coil includes a plurality of conductors co-radially wound such that the coil has an inductance greater than or equal to approximately 1.5 μH, wherein all regions of the coil extending from the proximal end of the lead to the at least one electrode contribute to the inductance greater than or equal to approximately 1.5 μH to reduce excitation along the coil extending from the proximal end of the lead to the at least one electrode by RF fields generated during magnetic resonance imaging; and sheathing along and surrounding the coil extending from the proximal end of the lead to the at least one electrode to provide a protective barrier between the coil and the body when the lead is implanted therein, wherein the sheathing has a thickness less than 0.009 inches, and further wherein the lead is configured such that the sheathing from the proximal end of the lead to the at least one electrode contacts the body when implanted therein.