Patent Number: 7,822,484

Title: MRI-compatible implantable lead having high impedance electrodes

Abstract: An implantable lead includes a lead body, having a distal end and a proximal end, configured to be implanted in a patient. An electrode assembly is provided at the distal end of the lead body, wherein the electrode assembly includes an electrode that is configured to deliver stimulating pulses. The electrode extends between a base and a tip at a distal end of the electrode. A shielding member is provided on the electrode assembly and is positioned to cover at least a portion of the electrode to electrically shield the electrode from RF fields. Optionally, the shielding member may include a shielding conductor that wraps about and extends longitudinally along a length of the electrode from the base to the tip. The shielding conductor may extend from the proximal end of the lead body at least to the distal end of the lead body.

Inventors: Zhao; Yong D. (Simi Valley, CA), Indravudh; Virote (Santa Clarita, CA), Min; Xiaoyi (Thousand Oaks, CA), Daush; Geoff (Santa Clarita, CA)

Assignee: Pacesetter, Inc.

International Classification: A61N 1/05 (20060101)

Expiration Date: 2018-10-26 0:00:00